A5101792613- Solar and Space Plasma Dynamics
- Astrophysics and Cosmic Phenomena
- Galaxies: Formation, Evolution, Phenomena
- Solar Radiation and Photovoltaics
- Ionosphere and magnetosphere dynamics
- Astrophysical Phenomena and Observations
- Cosmology and Gravitation Theories
- Atmospheric Ozone and Climate
- Radio Astronomy Observations and Technology
- Pulsars and Gravitational Waves Research
- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- GaN-based semiconductor devices and materials
- Semiconductor Lasers and Optical Devices
- Calibration and Measurement Techniques
- Acoustic Wave Resonator Technologies
- Planetary Science and Exploration
- Geomagnetism and Paleomagnetism Studies
- Astro and Planetary Science
- Gamma-ray bursts and supernovae
- Semiconductor Quantum Structures and Devices
Inter-University Centre for Astronomy and Astrophysics
2020-2024
Center for Astrophysics Harvard & Smithsonian
2023-2024
Utrecht University
2022
The Solar Ultraviolet Imaging Telescope (SUIT) is an instrument on the Aditya-L1 mission of Indian Space Research Organization (ISRO) launched September 02, 2023. SUIT continuously provides, near-simultaneous full-disk and region-of-interest images Sun, slicing through photosphere chromosphere covering a field view up to 1.5 solar radii. For this purpose, uses 11 filters tuned at different wavelengths in 200{--}400~nm range, including Mg~{\sc ii} h~and~k Ca~{\sc ii}~H spectral lines....
Abstract Solar flares are regularly observed in extreme-ultraviolet soft X-rays (SXRs) and hard (HXRs). However, those near- mid-ultraviolet sparse. The Ultraviolet Imaging Telescope (SUIT) on board the Aditya-L1, launched 2023 September 2, provides regular observations 200–400 nm wavelength range through 11 filters. Here, we report observation of X6.3 flare 2024 February 22 using eight narrowband (NB) filters SUIT. We have also used co-spatiotemporal from Dynamics Observatory/Atmospheric...
Abstract We present the multiwavelength study of ejection a plasma blob from limb flare SOL2023-12-31T21:36:00 NOAA 13536 observed by Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1. use SUIT observations along with those Atmospheric Assembly (AIA) Dynamics Observatory and Spectrometer/Telescope for X-rays (STIX) Orbiter to infer kinematics thermal nature ejected its connection associated flare. The show that was comprised two eruptions. during first eruption later accelerated...
Abstract The Mg ii k and h line intensity ratios can be used to probe the characteristics of plasma in solar atmosphere. In this study, using observations recorded by Interface Region Imaging Spectrometer, we study variation ratio for three flares belonging X-class, M-class, C-class, throughout their evolution. We also k-to - as a function magnetic flux density obtained from line-of-sight magnetograms Helioseismic Magnetic Imager on board Solar Dynamics Observatory. Our results reveal that,...
Abstract The thermal Sunyaev–Zeldovich (SZ) effect serves as a direct potential probe of the energetic outflows from quasars that are responsible for heating intergalactic medium. In this work, we use GIZMO meshless finite mass hydrodynamic cosmological simulation SIMBA, which includes different prescriptions quasar feedback, to compute SZ arising feedback modes. From these theoretical simulations, perform mock observations Atacama Large Millimeter Array (ALMA) in four bands (320, 135, 100,...
To investigate the effect of feedback from active galactic nuclei (AGN) on their surrounding medium, we study diffuse X‐ray emission galaxy groups and clusters by coupling Astrophysical Plasma Emission Code (APEC) with cosmological hydrodynamic simulation involving AGN feedback. We construct a statistical sample synthetic Chandra photon maps to observationally characterize ambient medium. show that are effective in displacing hot emitting gas centers clusters, these signatures remain evident...
The purpose of the present paper is to report experimental studies on process steps for fabrication IMPATT diodes using diffusion route. Also corresponding dc breakdown voltage fabricated devices have been studied by varying parameters.
PreviousNext You have accessSymposium on the Application of Geophysics to Engineering and Environmental Problems 2011An Integrated Geophysical Study Characterize Near‐Surface Barringer Meteorite CraterAuthors: Soumya RoyRobert StewartArkadiusz TurolskiSusan GreenLi ChangSoumya RoySearch for more papers by this author, Robert StewartSearch Arkadiusz TurolskiSearch Susan GreenSearch Li ChangSearch authorhttps://doi.org/10.4133/1.3614155 SectionsAboutPDF/ePub ToolsAdd favoritesDownload...
The thermal Sunyaev-Zeldovich (SZ) effect serves as a direct potential probe of the energetic outflows from quasars that are responsible for heating intergalactic medium. In this work, we use GIZMO meshless finite mass hydrodynamic cosmological simulation SIMBA (Dave et al. 2019), which includes different prescriptions quasar feedback, to compute SZ arising feedback modes. From these theoretical simulations, perform mock observations Atacama Large Millimeter Array (ALMA) in four bands (320...
To investigate the effect of feedback from active galactic nuclei (AGN) on their surrounding medium, we study diffuse X-ray emission galaxy groups and clusters by coupling Astrophysical Plasma Emission Code (APEC) with cosmological hydrodynamic simulation involving AGN feedback. We construct a statistical sample synthetic Chandra photon maps to observationally characterize ambient medium. show that are effective in displacing hot emitting gas centers clusters, these signatures remain evident...