Zobrazeno 41 - 50
of 126
pro vyhledávání: '"D. K. Sahu"'
Autor:
Jacqueline V. Keane, Richard J. Wainscoat, Bhuwan C. Bhatt, Marielle Dela Cruz, D. K. Sahu, Jan Kleyna, Karen J. Meech, Olivier Hainaut, Mark Boslough, Marco Micheli
We report on the catastrophic disintegration of P/2016 G1 (PANSTARRS), an active asteroid, in April 2016. Deep images over three months show that the object is made up of a central concentration of fragments surrounded by an elongated coma, and prese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e3567ff26312de869883e0d25df7d2e
Autor:
Peter de Nully Brown, Avinash Singh, Brajesh Kumar, G. C. Anupama, Jennifer E. Andrews, D. K. Sahu, Nathan Smith, Takashi J. Moriya
The optical and ultra-violet broadband photometric and spectroscopic observations of the Type II supernova (SN) 2016gfy are presented. The $V$-band light curve (LC) shows a distinct plateau phase with a slope, $s_2$ $\sim$ 0.12 mag / 100 d and a dura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ec7bcc38e5881a84dd8013175b95f2c
Autor:
Junqiang Zhang, Jozsef Vinko, Paul S. Smith, Daniel E. Reichart, Saurabh Jha, Hanna Sai, Iair Arcavi, Griffin Hosseinzadeh, Peter Milne, X. Zhang, Sheng Yang, M. Lundquist, D. K. Sahu, Eiichi Egami, G. C. Anupama, Y. Dong, Dan Milisavljevic, S. D. Van Dyk, Curtis McCully, K. A. Bostroem, D. A. Howell, Alexei V. Filippenko, Nathan Smith, Peter J. Brown, Steve Ertel, E. Baron, R. Cartier, X. F. Wang, David Pooley, J. M. Derkacy, Avinash Singh, S. Wyatt, D. J. Sand, Vladimir Kouprianov, O. D. Fox, John C Wheeler, J. B. Haislip, Raya Dastidar, Yun Wang, Jennifer E. Andrews, Daichi Hiramatsu, G. Grant Williams, Kuntal Misra, Renata Cecília Amaro, S. Valenti, Lluís Galbany, Brajesh Kumar, Anjasha Gangopadhyay, Jamison Burke
Publikováno v:
The Astrophysical Journal
Digibug: Repositorio Institucional de la Universidad de Granada
Universidad de Granada (UGR)
Digibug. Repositorio Institucional de la Universidad de Granada
instname
Digibug: Repositorio Institucional de la Universidad de Granada
Universidad de Granada (UGR)
Digibug. Repositorio Institucional de la Universidad de Granada
instname
We present the discovery and high-cadence follow-up observations of SN 2018ivc, an unusual Type II supernova that exploded in NGC 1068 (D=10.1 Mpc). The light curve of SN 2018ivc declines piecewise-linearly, changing slope frequently, with four clear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ffe64b2c7b06429b9d15fd7292dbcb8
Autor:
Richard J. Wainscoat, Marco Micheli, Erica Bufanda, Jacqueline V. Keane, Caroline Piro, Robert Weryk, Bhuwan C. Bhatt, L. Denneau, Jan Kleyna, Karen J. Meech, James Bauer, D. K. Sahu, Olivier Hainaut
Publikováno v:
The Planetary Science Journal. 2:33
Manx objects approach the inner solar system on long-period comet (LPC) orbits with the consequent high inbound velocities, but unlike comets, Manxes display very little to no activity even near perihelion. This suggests that they may have formed in
Autor:
Shubham Srivastav, Joe P. Ninan, Tushar P. Prabhu, G. C. Anupama, D. K. Sahu, D. K. Ojha, Brajesh Kumar
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 457:1000-1014
Optical and NIR observations of the type Ia supernova SN 2014J in M82 are presented. The observed light curves are found to be similar to normal SNe Ia, with a decline rate parameter $\Delta m_{15}(B) = 1.08 \pm 0.03$. The supernova reached $B$-band
Autor:
G. C. Anupama, Massimo Turatto, D. K. Sahu, S. Valenti, S. Benetti, Maria Letizia Pumo, Anjasha Gangopadhyay, Iair Arcavi, D. A. Howell, A. Morales-Garoffolo, Raya Dastidar, Leonardo Tartaglia, S. B. Pandey, Brijesh Kumar, P. Ochner, A. Pastorello, L. Tomasella, Curtis McCully, Griffin Hosseinzadeh, M. J. Singh, Luca Zampieri, Kuntal Misra, Nancy Elias-Rosa
We present optical photometry and spectroscopy from about a week after explosion to $\sim$272 d of an atypical Type IIP supernova, SN 2015ba, which exploded in the edge-on galaxy IC 1029. SN 2015ba is a luminous event with an absolute V-band magnitud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20d2afc105ec902d599ee9847898674f
http://arxiv.org/abs/1806.05470
http://arxiv.org/abs/1806.05470
Autor:
Masayuki Yamanaka, Hiroshi Akitaya, Ramya M. Anche, Keiichi Maeda, Mahito Sasada, Anirban Dutta, Hiroyuki Maehara, Nozomu Tominaga, G. C. Anupama, Tatsuya Nakaoka, D. K. Sahu, Avinash Singh, Sudhanshu Barway, Takashi Nagao, Kenta Taguchi, Keisuke Isogai, Masaru Kino, Koji S. Kawabata, Miho Kawabata, Sergei Blinnikov, Varun Bhalerao, Brajesh Kumar, P. V. Baklanov, Harsh Kumar, Kengo Takagi
Publikováno v:
The Astrophysical Journal. 882:L15
High cadence ultraviolet, optical and near-infrared photometric and low-resolution spectroscopic observations of the peculiar Type II supernova (SN) 2018hna are presented. The early phase multiband light curves exhibit the adiabatic cooling envelope
Autor:
N. K. Chakradhari, Shubham Srivastav, Masaomi Tanaka, Ken'ichi Nomoto, G. C. Anupama, Keiichi Maeda, D. K. Sahu
We present optical and ultraviolet photometry, and low resolution optical spectroscopy of the broad-line type Ic supernova SN 2014ad in the galaxy PGC 37625 (Mrk 1309), covering the evolution of the supernova during $-$5 to +87 d with respect to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05803c6bd868eb2dc7f9ae4cd05ce349
http://arxiv.org/abs/1801.07046
http://arxiv.org/abs/1801.07046
Optical broadband (UBVRI) photometric and low-resolution spectroscopic observations of the type II-P supernova (SN) ASASSN-14dq are presented. ASASSN-14dq exploded in a low-luminosity/metallicity host galaxy UGC 11860, the signatures of which are pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adce1814283599470899dd1899d5c840
Autor:
T. C. Scott, Jong-Hak Woo, Kuntal Misra, Bong Won Sohn, S. Ramya, D. K. Sahu, P. Lagos, C Sengupta, Sanjaya Paudel
We report on H${\alpha}$ + [NII] imaging of the Arp 202 interacting pair and its tidal dwarf galaxy (TDG) candidate as well as a GMOS long slit spectrum from the TDG candidate, observed with the Gemini North telescope. Our H${\alpha}$ + [NII] imaging
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35a3bfd6da20f266491fa9062a8522c8
http://arxiv.org/abs/1712.04913
http://arxiv.org/abs/1712.04913