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arious fields of physics, such as astronomy, cosmology, and solar physics, are dedicated to studying numerous fascinating phenomena over the centuries. In every discipline, the study involves theoretical frameworks, simulations, experiments, and observational methods. There are still many phenomena that are mysterious to us, and our understanding of them is still incomplete. Bringing all the ideas together, and discussing them on one platform may provide us new insights. In this division, we welcome studies from the following disciplines.
- Computational, and High Energy Astrophysics
- Cosmology, Dark Matter, and Dark Energy
- Extragalactic Astronomy and Galaxy Formation and Evolution
- Magnetospheric Physics
- Planetary science
- Solar Physics and Heliophysics
- Star Formation and Interstellar Medium
Air Pollution Transport and Formation of Pollutant Fields Over the Major Urban Centers in the Complex Terrain of Nepal Himalayan: Prospects of Ensuring National Ambient Air Quality Standard
Unacceptable levels of air pollution in and around the urban centers like Kathmandu Valley and Lumbini that accommodate large proportion of national population and world heritage sites is of serious concern. Development of air pollution control system for these regions, located in the complex terrains of Nepal Himalaya, remained a challenge. Resolving the meteorological flow fields, air pollution emission activities and the dynamics of pollutants down to kilometer scale horizontal grids, present study has paved the way to ensure the national air quality standard in and around these urban centers. Meteorological flows and air pollution dynamics over these regions have been numerically simulated and are verified with field observations. The study reveals that air pollution dispersion power of both the regions, typically determined by the prevailing meteorological conditions, is very poor, particularly, during the long dry season. Present emission loadings into the immediate atmosphere of both the Kathmandu and Lumbini region are far beyond their carrying capacities. The National Ambient Air Quality Standard can be met by limiting the emissions from domestic, transport and industrial sectors, respectively, to 20, 30 and 40% of the current emissions over the Kathmandu valley and 50, 50 and 30% for Lumbini region with respect to the particulate pollutant PM2.5.
Please look below for detailed schedule.
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Abstract Number: ANPA2024-N0003 Presenting Author: Narayan Prasad Chapagain, PhD Presenter's Affiliation: Department of Physics, Amrit Campus, Tribhuvan University, Thamel, Kathmandu Title: Space Weather at Low-Latitudes and Prospects of its Forecasting Location: In-Person Presentation, CDP Show/Hide Abstract Space is the ultimate high ground from which a variety of satellite-based surveillance, communications, and navigation systems operate. As these technologies become increasingly intertwined into our day-to-day lives and national security, it becomes paramount to understand how they can be disrupted. When plasma in the ionosphere between a satellite and a receiver is turbulent, the transmitted signals scintillate. This scintillation poses a problem for a receiver, which can lose the ability to track that signal, adversely affecting technologies that rely on this system. Although low- to mid-latitude ionospheric irregularities have been studied for several decades, the capability to forecast their occurrence and day-to-day variability is still elusive and remains a challenge in space physics. In this presentation, our investigation of the morphology and dynamics of these ionospheric plasma irregularities will be discussed. Similarly, total electron content (TEC), i.e. the total number of electrons present per square meter along a path between a radio transmitter from a satellite and a receiver, using GPS network widely distributed across Nepal will be presented to study the trend of the ionospheric variability over Nepal. The ionospheric anomalies using the TEC data during solar eclipse as well as before and after the huge Gorkha Earthquake in Nepal (28.23°N, 84.73°E) with a magnitude of 7.8 on April 25, 2015 have been analyzed.
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Abstract Number: ANPA2024-N00043 Presenting Author: Ram Prasad Regmi (Invited) Presenter's Affiliation: National Atmospheric Resource and Environmental Research Laboratory (NARERL), Central Department of Physics, Tribhuvan University, Kathmandu, Nepal. Title: Air Pollution Transport and Formation of Pollutant Fields Over the Major Urban Centers in the Complex Terrain of Nepal Himalayan: Prospects of Ensuring National Ambient Air Quality Standard Location: In-Person Presentation, CDP Show/Hide Abstract Unacceptable levels of air pollution in and around the urban centers like Kathmandu Valley and Lumbini that accommodate large proportion of national population and world heritage sites is of serious concern. Development of air pollution control system for these regions, located in the complex terrains of Nepal Himalaya, remained a challenge. Resolving the meteorological flow fields, air pollution emission activities and the dynamics of pollutants down to kilometer scale horizontal grids, present study has paved the way to ensure the national air quality standard in and around these urban centers. Meteorological flows and air pollution dynamics over these regions have been numerically simulated and are verified with field observations. The study reveals that air pollution dispersion power of both the regions, typically determined by the prevailing meteorological conditions, is very poor, particularly, during the long dry season. Present emission loadings into the immediate atmosphere of both the Kathmandu and Lumbini region are far beyond their carrying capacities. The National Ambient Air Quality Standard can be met by limiting the emissions from domestic, transport and industrial sectors, respectively, to 20, 30 and 40% of the current emissions over the Kathmandu valley and 50, 50 and 30% for Lumbini region with respect to the particulate pollutant PM2.5.
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Abstract Number: ANPA2024-N00044 Presenting Author: Lok Nath Sharma Presenter's Affiliation: Tribhuvan University Title: Ionospheric variations during the geomagnetic storms of March and April 2023 in Jeju Island, South Korea Location: In-Person Presentation, CDP Show/Hide Abstract The reconnection between the Interplanetary Magnetic Field (IMF) and the Earth’s magnetic field is the main driver of solar energy input to generate geomagnetic storms. In this work, we employ data from the Global Ionospheric Radio Observatory (GIRO) to study the effects of the March and April 2023 geomagnetic storms on ionospheric Total Electron Content (TEC) and F2 layer critical frequency (foF2) over the Jeju Island, South Korea. We investigate the possible ionospheric connection to OMNIWeb solar wind data through cross-correlation and continuous wavelet transforms (CWT) analyses. TEC and foF2 show a positive correlation above 0.9 to solar wind proton density (Nsw), and without time-lag during both storms. On the other side, during the storm of March 2023, TEC and foF2 show a negative correlation of 0.8 to the IMF By component with a time-lag of one hour, while the IMF Bz component and the geomagnetic SYM-H index show a negative correlation of 0.85 and 0.95, respectively, both without time lag. Conversely, during the storm of April 2023, the correlation of the IMF Bx component to TEC and foF2 are positive with a value of 0.7, and with a time-lag of 2.4 hours, while the IMF By and Bz components show a negative correlation to SYM-H above 0.9, both with absence of time-lag. These results show the significant fluctuations in ionospheric parameters over Jeju Island, South Korea and emphasizes the sensitivity and importance of ionosphere to space weather monitoring for understanding and mitigating the detrimental effects on communication and navigation systems.
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Abstract Number: ANPA2024-N00045 Presenting Author: Madhu Sudan Paudel Presenter's Affiliation: Department of Physics, Tri-Chandra Multiple Campus, TU Title: Seasonal Tropopause Dynamics over Nepal from 2022 to 2023: Insights from GNSS-RO Observations Location: In-Person Presentation, CDP Show/Hide Abstract ABSTRACT
Global Navigtion and Satellite System-Radio Occultation (GNSS-RO) is the robust method for monitoring the Earth’s atmosphere utilizing the refracted GNSS radio signal. Constellation Observation System for Meteorology, Ionosphere and Climate-2 (COSMIC-2) is one of the GNSS-RO satellite missions providing the bunch of information, which enables us to explore the characteristics of Earth’s atmosphere. It can provide the vertical profile of the atmospheric thermodynamic variable globally with resolution better than 1 km. The GNSS-RO data features the long-term stability, continuous in all types of weather condition along with very high precision and accuracy. In this pilot project, we are going to study the tropopause dynamics within the periphery of the Nepal, from longitude: 79◦E to 89◦E and latitude: 26◦N to 31◦N, using the data from COSMIC-2 mission from April 01, 2022 to March 30, 2023, by dividing into four seasons; March-April-May, June-July-August, September-October-November and December-January-Februry. For data extraction, we use the netCDF4 and Pandas and for the visualization and statistical analysis, we use the Matplotlib, Basemap, Scipy, Scikit-learn, libraries of the Python. The vertical profile of temperature, penetration depth and tropopuse height is studied. We use the Cold Point (CP) method and World Meteorological Organization (WMO) criteria to calculate the tropopasue height. The result obtained for tropopause height by both method for one year is compared with the COSMIC2 result. It is seen that the CP method agree more compare to the WMO method.
Keywords: GNSS-RO, COSMIC-2, Tropopause-dynamics, WMO.
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Abstract Number: ANPA2024-N00046 Presenting Author: Prakash Man Shrestha Presenter's Affiliation: Patan Multiple Camus, TU Title: Temporal variability of Solar Radiation and Atmospheric Turbidity on Jomsom on Wavelet approach Location: In-Person Presentation, CDP Show/Hide Abstract Population growth and industrialization effect on energy demands and air pollution levels. Knowledge of solar radiation is essential for an evaluation of solar energy system. Atmospheric turbidity factor is an important parameter for air pollution. The main aim of this project is to study temporal the variation of solar radiation and atmospheric turbidity on Jomsom (28.47o N, 83.83o E and 2,700 m above sea level)). The daily data of clearness index (KT) is received from the power achieve of NASA website for 12 years (2008 to 2019). The daily, monthly, seasonal and annual variations of solar radiation (Hg) and Linke turbidity (LT) are studied. The result exemplifies that during the whole study period, the maximum value of monthly average of LT is7.1 ± 1.7 in July, while the minimum value is 3.1 ± 1.4 in October. The results also show that TL is highly seasonal dependent with larger LT in monsoon ( 5.8 ± 1.6) and lower in post monsoon (3.1 ± 1.3). The average annual value of TOC exhibits slightly variable with a maximum in 2010 (277.52 DU ± 40.64 DU) and minimum in 2008 (267.19 DU ± 11.11 DU). The average value of Hg and LT during the whole study period are found 17.6 ± 7.0 MJ/m2/day and 5.1± 2.5 respectively. Continuous wavelet transform (CWT) is also used to analysis variation of Hg and LT. The power density of Hg greater than 24,000 (MJ/m2/day)2 is recorded from 2009 to mid of 2010 with period 8.5 year. The power density of LT between 1000 to1200 is recorded from 2016 to 2018 with period 8.5 year. This research work is beneficial for the further identification and analysis of Hg and LT at different places with same geography.
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Abstract Number: ANPA2024-N00047 Presenting Author: Purna Jyoti Shakya Presenter's Affiliation: Tribhuvan University Title: Magnetospheric Pc5 pulsation generated by interplanetary shocks during the geomagnetic storm of 22 June 2015 Location: In-Person Presentation, CDP Show/Hide Abstract We investigate magnetospheric Ultra low frequency (ULF) waves during the geomagnetic storm of 22 June 2015 from SuperMAG and OMNIWeb data. The Continuous Wavelet Transformation (CWT) analysis reveals the presence of Pc5 pulsations (150–600 s period) during the arrival of 2 interplanetary shocks, the first one at 5:45 UT and the second at 18:38 UT. Cross-correlation analysis shows magnetometer data are positively correlated with interplanetary magnetic field (IMF), AE index and Polar cap index. Similarly, solar wind density (Nsw), solar wind pressure (Psw), and solar wind velocity (Vsw), also show positive correlation. These observations indicate ULF waves are generated in the magnetosphere due to a sudden increase in solar wind density and velocity after the interplanetary shock, resulting in a gradual increase of dynamic solar wind pressure and a sudden compression from the Earth’s dayside magnetosphere.
Keywords: Ultra Low Frequency (ULF) waves, Pc5 Pulsations, Geomagnetic Storms, Magnetosphere.
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Abstract Number: ANPA2024-N00048 Presenting Author: Sanjay Lal Karna Presenter's Affiliation: Central Department of Physics, Tribhuvan University, Kirtipur, Nepal and Department of Physics, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal Title: Photocurrent Behavior in Sunceco PV Cell Modules with Irradiance and Temperature Variation in Nepal Location: In-Person Presentation, CDP Show/Hide Abstract The aim of this study is to explore how the photocurrent behaves in Sunceco PV cell modules under different levels of sunlight and temperatures, specifically in Nepal. For this this, we're using data on sunlight intensity from SOLARGIS, a reliable solar resource database. The PV cell we're focusing on is a 315 Wp polycrystalline module, known for having a short-circuit current of 9.371 A and an open-circuit voltage of 44.82 V, with an efficiency of 18.34%. This type of PV cell is commonly used in Nepal. Using Student package MATLAB's to analyzed the photocurrent characteristics of this PV cell module. The findings show a clear and consistent relationship between photocurrent, sunlight intensity, and temperature, which falls within the range of 9 to 19 A.
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Abstract Number: ANPA2024-N00091 Presenting Author: Sanjib K C Presenter's Affiliation: Georgia State University Title: Space Radiation in Earth Environment with Radiation Data Portal Location: In-Person Presentation, Fayetteville Show/Hide Abstract Monitoring and analyzing the radiation environment in the Earth's lower atmosphere is essential for safeguarding the well-being of aircraft and spacecraft crews and passengers. Addressing the problem requires a complex approach of integrating different data sources and enhancing the visualization and search capabilities. Additionally, the development of data-driven radiative environment prediction models demands a significant investment in data preparation. This study highlights the expansion of the Radiation Data Portal (RDP) database and the construction of a Machine Learning-ready (ML-ready) dataset for predicting effective dose rates at airplane heights. The RDP allows users to explore recent measurements obtained from the Automated Radiation Measurements for Aerospace Safety (ARMAS) device spanning from 2013 to 2023, along with data describing terrestrial and space environments, including cosmic rays, solar wind, energetic particles, and geomagnetic activity. ARMAS data suitable for ML purposes are semi-manually down-selected and partitioned into three sets while preserving consistent statistical properties. Furthermore, the study utilizes machine learning (ML) approaches to analyze the data and make various predictions, thus enhancing understanding and forecasting capabilities crucial for aviation safety. The results of statistical analysis of radiation measurements are discussed, alongside a comparison with predictions from the Nowcast of the Atmospheric Ionizing Radiation for Aerospace Safety (NAIRAS V3) model.
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Abstract Number: ANPA2024-N00095 Presenting Author: Nabin Malakar Presenter's Affiliation: Worcester State University Title: Information to Action Using Air Pollution data from Satellites and ground stations Location: In-Person Presentation, Fayetteville Show/Hide Abstract We will present a case study of Nepal, where an effective management of air quality is hindered by a significant lack of comprehensive air pollution data. This deficiency challenges the ability of both governmental and non-governmental organizations to fully grasp the extent and impact of air pollution. As an example, there is a huge disparity between the World Health Organization's standards and Nepal's national air quality standards, clearly underscoring the urgency for more accurate data to inform policy. One needs to leverage both satellite and ground-station data to fill existing data gaps and enhance air quality management strategies. By integrating data from these diverse sources, it can provide a more robust understanding of air quality patterns, which is essential for crafting targeted environmental policies. These policies may include promotion of clean energy sources, stricter industrial emission standards, among others. Furthermore, encouraging the utility of citizen science in gathering localized data and promoting community engagement can help address the critical data gap. This approach not only increases public awareness of air pollution's dangers but also empowers citizens to advocate for and support effective environmental policies. Ultimately, by improving the precision and scope of air pollution data, the data-driven strategy seeks to refine Nepal's air quality management and ensure that policies are responsive to the real-time needs and conditions of its populace, thereby mitigating the adverse health and environmental impacts of air pollution.
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Abstract Number: ANPA2024-N000129 Presenting Author: Pradip Poudel Presenter's Affiliation: MSc Student at CDP,TU Title: Correlation Analysis of Solar Wind Parameters during the Geomagnetic Storm Events. Location: Virtual Presentation Show/Hide Abstract For more than a decade, scientists have studied the solar wind (SW) and the variables of IMF that play a key role in the development of GMSs. In this work, we have studied the solar wind behavior and dynamics of various solar wind parameters like flow speed (Vsw), flow pressure (Psw), solar wind density (Nsw), IMF’s z-component (Bz), proton temperature (Tsw), and geomagnetic index, SYM-H during the geomagnetic event of 21st -26th April 2023 (Event 1), 1st -6th November 2021(Event 2), 10th – 15th October 2021(Event 2), and 9th – 14th May 2021(Event 4) using the OMNIWeb. The events were selected by observing the SYM-H index. Only the geomagnetic event of intense and moderate strength has been studied. The time series analysis of the SW parameters insight into the dynamics behavior before, during, and main phase of the storm’. The solar wind parameters did not show any kind of fluctuation under quiet conditions. We noticed a gradual decrease in the value of SYM-H after the sudden storm commencement reaching up to a minimum value of -223 nT, -118 nT, -72 nT, and -59 nT for Event1, 2, 3, and 4 respectively. ). The B_z reached its minimum value of -33.43, -20.41, -13.24, and -20 nT for Events 1, 2, 3, and 4 respectively during the main phase of the storm. All parameters showed a major fluctuation during the storm’s main phase. We have used correlation analysis for a better illustration of relationship between the SW parameters. Nsw-Psw showed a strong positive correlation with the coefficient value of 0.88, 0.70, 0.88, 0.94 for Events 1, 2, 3, and 4 respectively. This concludes that there is a very close relationship between solar wind pressure and solar wind density during a geomagnetic storm. On the other hand, Vsw-SYM-H also showed a strong negative association for all of our events showing a maximum correlation coefficient of -0.82 during the 10th – 15th October 2021 (Event 3) geomagnetic storm. The findings of this work will show that the suggested approaches are easy, efficient, and reliable ways to understand the dynamics of solar wind parameters during a geomagnetic storm.
Keywords: Solar wind (SW), Geomagnetic storms (GMSs), Sudden Storm Commencement (SSC), Solar wind parameters
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Abstract Number: ANPA2024-N000130 Presenting Author: Aayush Gautam Presenter's Affiliation: Department of Astronomy, University of Virginia Title: Gradual cluster formation: protoplanetary disk evolution Location: Virtual Presentation Show/Hide Abstract The crowded environment of star clusters shapes protoplanetary disks from their earliest stages. Dynamical encounters between close stars and radiation fields from nearby massive stars can sculpt disks significantly. Here, we studied the effects of star cluster environment on disks by implementing simple protoplanetary disk evolution models within N-body simulations of gradual star cluster formation. Our models consider a range of star formation efficiency per free-fall time ε_ff, and mass surface density of the parent cloud environment Σ_cl, both of which affect the overall duration of cluster formation. We estimate the dynamical truncation of the disks around stars involved in close encounters. We also track external photoevaporation of the disks due to the ionizing radiation field of the nearby massive (> 5M ) stars. We find that ε_ff , Σ_cl, and the degree of primordial binarity have major influences on the masses and radii of the disk population. In particular, we find that external photo-evaporation affects disks more than dynamical interactions.
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Abstract Number: ANPA2024-N000131 Presenting Author: Bhairab Ale Presenter's Affiliation: Central Department of Physics Title: Analysis of Cross-Correlation of Bz and Pc4 during the Geomagnetic Storm of March 17, 2015, and May 8, 2016 Location: Virtual Presentation Show/Hide Abstract This study delves into the southward interplanetary magnetic field (Bz), velocity,
geomagnetic index (SYM-H), and Pc4 pulsations from stations PG1, GIM, T42, and T47 during
the geomagnetic events of March 17, 2015, and May 8, 2016. The data was collected using
OMNIWeb and SuperMAG. These parameters are crucial for understanding geomagnetic storms.
The geomagnetic storm on March 17th was triggered by significant fluctuations in solar wind
speed and Bz, causing a substantial perturbation of Earth’s magnetosphere. Interestingly, the Pc4
pulsations displayed a synchronized pattern across the stations, indicating a coordinated
magnetospheric response. Conversely, the geomagnetic storm on May 8th was caused by a
coronal mass ejection, which exhibited distinct characteristics from the previous event. This
storm was marked by continuous variations in Bz, leading to a separate geomagnetic storm,
highlighting the diverse responses of Earth’s magnetosphere to different solar disturbances. A
cross-correlation analysis revealed a strong negative correlation between Bz and Pc4 pulsations
at several stations, further enriching our understanding of these complex phenomena.
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Abstract Number: ANPA2024-N000132 Presenting Author: Bishwas L. Shrestha Presenter's Affiliation: Princeton University Title: Suprathermal Hydrogen Pickup Ion Tails in the Outer Heliosphere Location: Virtual Presentation Show/Hide Abstract Interstellar Pickup ions (PUIs) are created by ionization of the interstellar neutral atoms by charge exchange, photoionization, and electron impact ionization in the heliosphere. As the PUIs travel outward with the expanding solar wind, they are occasionally heated by passing interplanetary shocks and sometimes form a suprathermal power-law tail. PUIs are preferentially heated at distant interplanetary shocks and dominate the internal pressure in the outer heliosphere. We provide a detailed analysis of five distant interplanetary shocks observed by SWAP, which exhibit the signature of a suprathermal H+ PUI tail in the downstream distribution. These shocks were observed during PUI observations with a cadence of approximately 24 hr, covering a heliocentric distance range of around 23.5-36.8 au. The H+ PUI density and temperature show a gradual increase across the shock, while the H+ SW density shows erratic behavior without a distinct downstream compression. Notably, this study demonstrates, for the first time, the variation of the number density of the H+ PUI tail with the shock compression ratio, revealing an increase in tail density with stronger shocks. Additionally, the observed H+ PUI tail densities are compared with the theoretical estimate of reflected PUI number density derived from the electrostatic cross-shock potential (CSP). The comparison shows that the match between observed values and theoretical estimates is very good for stronger shocks.
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Abstract Number: ANPA2024-N000133 Presenting Author: Nabin Gurung Presenter's Affiliation: Tribhuvan University Title: DUST COLOR TEMPERATURE AND MASS AROUND PERSEUS MOLECULAR CLOUD NGC 1333 USING INFRARED DATA Location: Virtual Presentation Show/Hide Abstract In this work, dust properties around the NGC-1333 within Perseus Molecular Cloud located at RA (J2000): 03h29m06.48s, DEC(J2000): +31o1848.1 is studied extensively using the publicly available data from Improved Reprocessing of IRAS Survey (IRIS), AKARI infrared survey and Wide−field Infrared Survey Explorer (WISE). The bipolar dust structure hardly resolved in IRIS (60 μm and 100 μm) and is resolved in AKARI (90μm and 140 μm) and WISE (12 μm and 22 μm) images. The dust color temperature and dust mass are calculated from infrared flux density in each bipolar dust structure in all surveys. The average value of dust color temperature in isolated dust structures are 73K for IRIS, 20.98 K and 17.89 K for AKARI-UP and AKARI-DOWN, 356.45 K and 291.24 K for WISE-UP and WISE-DOWN data. A wide range of temperatures suggests the bipolar dust structure is dynamically active. The mass of dust is found to be 0.020 M⊙ in IRIS data, 0.278 M⊙, and 0.277 M⊙ in two bipolar regions in AKARI data, and 0.004 M⊙ and 0.001 M⊙ in WISE data. SIMBAD database explores some sources including Star, X-ray sources, etc. near the dust which might be the progenitor of dust as well as the contributor of energetic radiation. The Gaussian modeling of temperature and mass is found to be deviated from normal except for WISE-DOWN. The contour plot of dust color temperature and dust mass shows that there is no any preferred correlation between them in IRIS and WISE data but there is an inverse relationship in AKARI data both in UP and DOWN structure. We have tried to establish the relation between temperature and mass using linear regression. From the calculation of Jeans Mass, it is found that the gas mass in IRIS and WISE are much lower but the gas mass in AKARI is higher which suggests that the studied region might be star-forming.
Keywords: Interstellar Dust, Dust Color Temperature, Dust Mass, Perseus Cloud, NGC 1333, IRIS, AKARI, WISE.
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Abstract Number: ANPA2024-N000134 Presenting Author: Prem kumari katwal Presenter's Affiliation: TU Title: Space travel SST 6 Mission Location: Virtual Presentation Show/Hide Abstract Space travel has long been a realm of fascination, exploration, and scientific endeavour. The emergence of commercial space tourism represents a significant milestone in making space accessible to a broader audience. As a member and senior adviser of Swiss Space Tourism, I am deeply involved in the development and execution of innovative projects aimed of space tourism.
The SST 6 Project stands as a testament to Switzerland's commitment to pushing the boundaries of space exploration. This project encompasses a multifaceted approach, integrating cutting-edge technology, meticulous planning, and a dedication to safety to provide participants with unparalleled space travel experiences. Leveraging advancements in aerospace engineering and propulsion systems, SST 6 aims to offer tourists an immersive journey beyond Earth's atmosphere, allowing them to witness the awe-inspiring beauty of space firsthand.
As a senior adviser, my role involves strategic oversight and guidance to ensure that the SST 6 Project aligns with our vision of pioneering safe and sustainable space tourism. Collaborating virtually with industry experts, space agencies, and regulatory bodies, we prioritize safety protocols and regulatory compliance while fostering innovation and pushing the boundaries of what is possible in space tourism.
Furthermore, the SST 6 Project represents a significant opportunity for Switzerland to assert its presence in the global space tourism market. By leveraging our expertise in precision engineering, technology, and hospitality, we aim to offer tourists an unforgettable journey to the cosmos while showcasing Switzerland's commitment to excellence and innovation on the world stage.
In conclusion, the SST 6 Project represents a bold step forward in the evolution of space tourism, highlighting Switzerland's dedication to pushing the boundaries of exploration while offering tourists a once-in-a-lifetime opportunity to experience the wonders of space.
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Abstract Number: ANPA2024-N000135 Presenting Author: Sujan Prasad Gautam Presenter's Affiliation: UAH Department of Space Science Title: Solar wind turbulence anisotropy evolution in the inner heliosphere: A radial alignment study Location: Virtual Presentation Show/Hide Abstract In this work, we studied the evolution of anisotropy properties of solar wind turbulence during the first radial alignment of Parker Solar Probe (at 0.1 AU) and Solar Orbiter (at 1 AU), a event discovered by Telloni et al. using a ballistic approach. The time interval of this event was 1.5 hours. We estimated the fluctuating magnetic energy density (Eb), correlation length (λ) and cascade rate (ϵ) corresponding to Eb, as well as the reduced magnetic cross-helicity (σm), considering the transport of the same plasma parcel between the two spacecraft. We found that the fluctuating magnetic energy density and corresponding cascade rate decrease at a distance away from the Sun. Moreover, the correlation length corresponding to the fluctuating magnetic energy density is smaller near the Sun in comparison to at 1 au. These turbulence properties in a perpendicular direction from a mean magnetic field Bo are found to dominate the parallel direction. The Power Spectral Density (PSD) analysis of fluctuating magnetic field shows that power spectrum at PSP location is higher than at the SolO location; perpendicular power is greater than parallel power at both locations. Finally, we estimated reduced magnetic cross-helicity (σm) at both locations. We found that the σm contains similar nature at both locations. These results provide validation of evolution of solar wind turbulence anisotropy properties as it propagates through the interplanetary space.
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