Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Dewangan, Gulab Chand"'
Autor:
Bhargava, Yash, Dewangan, Gulab Chand, Anupama, G. C., Kamath, U. S., Sonith, L. S., Singh, Kulinder Pal, Drake, J. J., Beardmore, A., Luna, G. J. M., Orio, M., Page, K. L.
Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection of a periodicity in the so
Externí odkaz:
http://arxiv.org/abs/2312.10291
We present a multi-wavelength study of the active nucleus and the off-nuclear X-ray sources in the nearby spiral galaxy, NGC 1365 using three simultaneous UV/X-ray observations by AstroSat over a two months period and archival IR observations perform
Externí odkaz:
http://arxiv.org/abs/2302.00315
We present five simultaneous UV/X-ray observations of IC4329A by AstroSat, performed over {a five-month} period. We utilize the excellent spatial resolution of the Ultra-Violet Imaging Telescope (UVIT) onboard AstroSat to reliably separate the intrin
Externí odkaz:
http://arxiv.org/abs/2104.13031
We present a detailed comparative systematic study using a sample of 221 Narrow-line Seyfert 1 (NLSy1) galaxies in comparison to a redshift matched sample of 154 Broad-line Seyfert 1 (BLSy1) galaxies based on their observations using ROSAT and/or XMM
Externí odkaz:
http://arxiv.org/abs/2005.08352
Autor:
Vadawale, Santosh V., Rao, A. R., Bhattacharya, Dipankar, Bhalerao, Varun B., Dewangan, Gulab Chand, Vibute, Ajay M., S., Mithun N. P., Chattopadhyay, Tanmoy, Sreekumar, S.
Cadmium-Zinc-Telluride Imager (CZTI) is one of the five payloads on-board recently launched Indian astronomy satellite AstroSat. CZTI is primarily designed for simultaneous hard X-ray imaging and spectroscopy of celestial X-ray sources. It employs th
Externí odkaz:
http://arxiv.org/abs/1609.00538
Akademický článek
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Autor:
Dewangan, Gulab Chand
Publikováno v:
Astrophys.J. 581 (2002) L71-L76
A significant correlation between FeKalpha line energy and X-ray spectral slope has been discovered among radio-quiet active galactic nuclei. The ionization stage of the bulk of the FeKalpha emitting material is not the same in all active galactic nu
Externí odkaz:
http://arxiv.org/abs/astro-ph/0211234
Publikováno v:
Monthly Notices of the Royal Astronomical Society; 4/15/2023, Vol. 520 Issue 3, p3712-3724, 13p
Publikováno v:
Astrophysical Journal; 7/1/2021, Vol. 915 Issue 1, p1-14, 14p
Akademický článek
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