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Browsing by Author "Harsh Kumar"

Browsing by Author "Harsh Kumar"

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  • The fast, luminous ultraviolet transient AT2018cow: extreme supernova, or disruption of a star by an intermediate-mass black hole? 
    Perley, D. A; Mazzali, P. A; Yan, Lin|; Cenko, S. Bradley; Gezari, Suvi; Taggart, Kirsty; Blagorodnova, Nadia; Fremling, Christoffer; Mockler, Brenna; Singh, A; Tominaga, Nozomu; Tanaka, Masaomi; Watson, Alan M; Ahumada, Tomas; Anupama, G. C; Ashall, Chris; Becerra, Rosa L; Bersier, David; Bhalerao, Varun; Bloom, Joshua S; Butler, Nathaniel R; Copperwheat, Chris; Coughlin, Michael W; De, Kishalay; Drake, Andrew J; Duev, Dmitry A; Frederick, Sara; Gonzalez, J. J; Goobar, Ariel; Heida, Marianne; Ho, Anna Y. Q; Horst, John; Hung, Tiara; Itoh, Ryosuke; Jencson, Jacob E; Kasliwal, Mansi M; Kawai, Nobuyuki; Khanam, Tanazza; Kulkarni, Shrinivas R; Brajesh Kumar; Harsh Kumar; Kutyrev, Alexander S; Lee, William H; Maeda, Keiichi; Ashish Mahabal; Murata, Katsuhiro L; Neill, James D; Ngeow, Chow-Choong; Penprase, Bryan; Pian, Elena; Quimby, Robert; Ramirez-Ruiz, Enrico; Richer, Michael G; Roman-Zuniga, Carlos G; Sahu, D. K; Srivastav, S; 9 others (Oxford University Press on behalf of the Royal Astronomical Society, 2019-03)
    Wide-field optical surveys have begun to uncover large samples of fast (trise ≲ 5 d), luminous (Mpeak < −18), blue transients. While commonly attributed to the breakout of a supernova shock into a dense wind, the great ...
  • GROWTH on S190425z: Searching Thousands of Square Degrees to Identify an Optical or Infrared Counterpart to a Binary Neutron Star Merger with the Zwicky Transient Facility and Palomar Gattini-IR 
    Coughlin, Michael W; Tomás Ahumada; Shreya Anand; Kishalay De; Hankins, Matthew J; Kasliwa, Mansi M; Singer, Leo P; Eric C. Bellm; Igor Andreoni; Bradley Cenko, S; Jeff Cooke; Copperwheat, Christopher M; Dugas, Alison M; Jencson, Jacob E; Perley, Daniel A; Po-Chieh Yu; Varun Bhalerao; Harsh Kumar; Bloom, Joshua S; Anupama, G. C; Ashley, Michael C. B; Ashot Bagdasaryan; Rahul Biswas; Buckley, David A. H; Burdge, Kevin B; Cook, David O; John Cromer; Virginia Cunningham; Antonino D ’ Aì; Dekany, Richard G; Alexandre Delacroix; Simone Dichiara; Duev, Dmitry A; Anirban Dutta; Michael Feeney; Sara Frederick; Pradip Gatkine; Shaon Ghosh; Goldstein, Daniel A; Zach Golkhou, V; Ariel Goobar; Graham, Matthew J; Hidekazu Hanayama; Takashi Horiuchi; Tiara Hung; Jha, Saurabh W; Kulkarni, Shrinivas R; Thomas Kupfer; Masci, Frank J; Paolo Mazzali; Moore, Anna M; Moses Mogotsi; Neill, James D; Chow-Choong Ngeow; Jorge Martínez-Palomera; Valentina La Parola; Pavana, M; Ofek, Eran O; Atharva Sunil Patil; Reed Riddle; Mickael Rigault; Ben Rusholme; Eugene Serabyn; Shupe, David L; Yashvi Sharma; Avinash Singh; Jesper Sollerman; Jamie Soon; Kai Staats; Kirsty Taggart; Hanjie Tan; Tony Travouillon; Eleonora Troja; Gaurav Waratkar; Yoichi Yatsu (IOP Publishing, 2019-11)
    The third observing run by LVC has brought the discovery of many compact binary coalescences. Following the detection of the fi rst binary neutron star merger in this run ( LIGO / Virgo S190425z ) , we performed ...
  • Kilonova Luminosity Function Constraints Based on Zwicky Transient Facility Searches for 13 Neutron Star Merger Triggers during O3 
    Kasliwal, Mansi M; Anand, Shreya; Ahumada, Tomas; Stein, Robert; Carracedo, Ana Sagues; Andreoni, Igor; Coughlin, Michael W; Singer, Leo P; Kool, Erik C; Kishalay De; Harsh Kumar; Waratkar, Gaurav; Webb, Sara; Yu, Po-Chieh; Zhang, Bin-Bin; Zhou, Rongpu; Zolkower, Jeffry; AlMualla, Mouza; Yao, Yuhan; Bulla, Mattia; Dobie, Dougal; Reusch, Simeon; Perley, Daniel A; Cenko, S. Bradley; Bhalerao, Varun; Kaplan, David L; Sollerman, Jesper; Goobar, Ariel; Copperwheat, Christopher M; Bellm, Eric C; Anupama, G. C; Corsi, Alessandra; Nissanke, Samaya; Agudo, Ivan; Bagdasaryan, Ashot; Barway, Sudhanshu; Belicki, Justin; Bloom, Joshua S; Bolin, Bryce; Buckley, David A. H; Burdge, Kevin B; Burruss, Rick; Caballero-Garcia, Maria D; Cannella, Chris; Castro-Tirado, Alberto J; Cook, David O; Cooke, Jeff; Cunningham, Virginia; Dahiwale, Aishwarya; Deshmukh, Kunal; Dichiara, Simone; Duev, Dmitry A; Anirban Dutta; Feeney, Michael; Franckowiak, Anna; Frederick, Sara; Fremling, Christoffer; Gal-Yam, Avishay; Gatkine, Pradip; Ghosh, Shaon; Goldstein, Daniel A; Zach Golkhou, V; Graham, Matthew J; Graham, Melissa L; Hankins, Matthew J; Helou, George; Youdong Hu; Ip, Wing-Huen; Jaodand, Amruta; Karambelkar, Viraj; Kong, Albert K. H; Kowalski, Marek; Khandagale, Maitreya; Kulkarni, S. R; Brajesh Kumar; Laher, Russ R; Li, K. L; Mahaba, Ashish; Masci, Frank J; Miller, Adam A; Mogotsi, Moses; Mohite, Siddharth; Mooley, Kunal; Mroz, Przemek; Newman, Jeffrey A; Ngeow, Chow-Choong; Oates, Samantha R; Patil, Atharva Sunil; Pandey, S. B; Pavana, M; Pian, Elena; Riddle, Reed; Sanchez-Ramirez, Ruben; Sharma, Yashvi; Singh, A; Smith, Roger; Soumagnac, Maayane T; Taggart, Kirsty; Tan, Hanjie; Tzanidakis, Anastasios; Troja, Eleonora; Valeev, Azamat F; Walters, Richard (IOP Publishing, 2020-12-20)
    We present a systematic search for optical counterparts to 13 gravitational wave (GW) triggers involving at least one neutron star during LIGO/Virgo's third observing run (O3). We searched binary neutron star (BNS) and ...
  • SN 2018hna: 1987A-like supernova with a signature of shock breakout 
    Singh, A; Sahu, D. K; Anupama, G. C; Brajesh Kumar; Harsh Kumar; Yamanaka, Masayuki; Baklanov, Petr V; Tominaga, Nozomu; Blinnikov, Sergei. I; Maeda, Keiichi; Anirban, D; Bhalerao, Varun; Ramya, M. Anche; Barway, Sudhanshu; Akitaya, Hiroshi; Nakaoka, Tatsuya; Kawabata, Miho; Kawabata, Koji. S; Sasada, Mahito; Takagi, Kengo; Maehara, Hiroyuki; Isogai, Keisuke; Kino, Masaru; Taguchi, Kenta; Nagao, Takashi (IOP Publishing, 2019-09-10)
    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 (LCs) ...

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