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Browsing by Author "Fremling, Christoffer"

Browsing by Author "Fremling, Christoffer"

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  • Characterizing the Ordinary Broad-line Type Ic SN 2023pel from the Energetic GRB 230812B 
    Srinivasaragavan, Gokul P; Swain, Vishwajeet; O’Connor, Brendan; Anand, Shreya; Ahumada, Tomás; Perley, Daniel; Stein, Robert; Sollerman, Jesper; Fremling, Christoffer; Cenko, S. Bradley; Antier, S; Guessoum, Nidhal; Hussenot-Desenonges, Thomas; Hello, Patrice; Lesage, Stephen; Hammerstein, Erica; Miller, M. Coleman; Andreoni, Igor; Bhalerao, Varun; Bloom, Joshua S; Dutta, Anirban; Gal-Yam, Avishay; Hinds, K-Ryan; Jaodand, Amruta; Kasliwal, Mansi; Kumar, Harsh; Kutyrev, Alexander S; Ragosta, Fabio; Ravi, Vikram; Sharma, Kritti; Teja, Rishabh Singh; Yang, Sheng; Anupama, G. C; Bellm, Eric C; Coughlin, Michael W; Mahabal, Ashish A; Masci, Frank J; Pathak, Utkarsh; Purdum, Josiah; Roberts, Oliver J; Smith, Roger; Wold, Avery (American Astronomical Society, 2024-01-10)
    We report observations of the optical counterpart of the long gamma-ray burst (GRB) GRB 230812B and its associated supernova (SN) SN 2023pel. The proximity (z = 0.36) and high energy (Eγ,iso ∼ 1053 erg) make it an important ...
  • 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 ...
  • In Search of Short Gamma-Ray Burst Optical Counterparts with the Zwicky Transient Facility 
    Ahumada, Tomás; Anand, Shreya; Coughlin, Michael W; Andreoni, Igor; Kool, Erik C; Kumar, Harsh; Reusch, Simeon; Sagués-Carracedo, Ana; Stein, Robert; Cenko, Bradley S; Kasliwal, Mansi M; Singer, Leo P; Dunwoody, Rachel; Mangan, Joseph; Bhalerao, Varun; Bulla, Mattia; Burns, Eric; Graham, Matthew J; Kaplan, David L; Perley, Daniel; Almualla, Mouza; Bloom, Joshua S; Cunningham, Virginia; De, Kishalay; Gatkine, Pradip; Ho, Anna Y. Q; Karambelkar, Viraj; Kong, Albert K. H; Yao, Yuhan; Anupama, G. C; Barway, Sudhanshu; Ghosh, Shaon; Itoh, Ryosuke; McBreen, Sheila; Bellm, Eric C; Fremling, Christoffer; Laher, Russ R; Mahabal, Ashish A; Riddle, Reed L; Rosnet, Philippe; Rusholme, Ben; Smith, Roger; Sollerman, Jesper; Bissaldi, Elisabetta; Fletcher, Corinne; Hamburg, Rachel; Mailyan, Bagrat; Malacaria, Christian; Roberts, Oliver (American Astronomical Society, 2022-06-10)
    The Fermi Gamma-ray Burst Monitor (GBM) triggers on-board in response to ∼40 short gamma-ray bursts (SGRBs) per year; however, their large localization regions have made the search for optical counterparts a challenging ...
  • India's First Robotic Eye for Time-domain Astrophysics: The GROWTH-India Telescope 
    Kumar, Harsh; Bhalerao, Varun; Anupama, G. C; Barway, Sudhanshu; Basu, Judhajeet; Deshmukh, Kunal; De, Kishalay; Dutta, Anirban; Fremling, Christoffer; Iyer, Hrishikesh; Jassani, Adeem; Joharle, Simran; Karambelkar, Viraj; Khandagale, Maitreya; Krishna, K Adithya; Kulkarni, Sumeet; Mate, Sujay; Patil, Atharva; Phanindra, D. V. S; Samantaray, Subham; Sharma, Kritti; Sharma, Yashvi; Shenoy, Vedant; Singh, Avinash; Srivastava, Shubham; Swain, Vishwajeet; Waratkar, Gaurav; Angchuk, D; Dorjay, Padma; Dorjai, T; Gyalson, T; Jorphail, S; Mahay, T. T; Norbu, Rigzin; Sharma, Tarun Kumar; Stanzin, Jigmet; Stanzin, Tsewang; Stanzin, Urgain (American Astronomical Society, 2022-09-01)
    We present the design and performance of the GROWTH-India telescope, a 0.7 m robotic telescope dedicated to time-domain astronomy. The telescope is equipped with a 4k back-illuminated camera that gives a 0fdg82 field of ...
  • 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 ...
  • Minutes-duration optical flares with supernova luminosities 
    Ho, Anna Y. Q; Perley, Daniel A; Chen, Ping; Schulze, Steve; Dhillon, Vik; Kumar, Harsh; Suresh, Aswin; Swain, Vishwajeet; Bremer, Michael; Smartt, Stephen J; Anderson, Joseph P; Anupama, G. C; Awiphan, Supachai; Barway, Sudhanshu; Bellm, Eric C; Ben-Ami, Sagi; Bhalerao, Varun; de Boer, Thomas; Brink, Thomas G; Burruss, Rick; Chandra, Poonam; Chen, Ting-Wan; Chen, Wen-Ping; Cooke, Jeff; Coughlin, Michael W; Das, Kaustav K; Drake, Andrew J; Filippenko, Alexei V; Freeburn, James; Fremling, Christoffer; Fulton, Michael D; Gal-Yam, Avishay; Galbany, Lluís; Gao, Hua; Graham, Matthew J; Gromadzki, Mariusz; Gutierrez, Claudia P; Hinds, K. -Ryan; Inserra, Cosimo; Nayana, A. J; Karambelkar, Viraj; Kasliwal, Mansi M; Kulkarni, Shri; Muller-Bravo, Tomas E; Magnier, Eugene A; Mahabal, Ashish A; Moore, Thomas; Ngeow, Chow-Choong; Nicholl, Matt; Ofek, Eran O; Omand, Conor M. B; Onori, Francesca; Pan, Yen-Chen; Pessi, Priscila J; Petitpas, Glen; Polishook, David; Poshyachinda, Saran; Pursiainen, Miika; Riddle, Reed; Rodriguez, Antonio C; Rusholme, Ben; Segre, Enrico; Sharma, Yashvi; Smith, Ken W; Sollerman, Jesper; Srivastav, Shubham; Strotjohann, Nora Linn; Suhrx, Mark; Svinkin, Dmitry; Wang, Yanan; Wiseman, Philip; Wold, Avery; Yang, Sheng; Yang, Yi; Yao, Yuhan; Young, David R; Zheng, WeiKang (Springer Nature, 2023-11-30)
    In recent years, certain luminous extragalactic optical transients have been observed to last only a few days1. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic ...
  • Real-time discovery of AT2020xnd: a fast, luminous ultraviolet transient with minimal radioactive ejecta 
    Perley, Daniel A; Ho, Anna Y. Q; Yao, Yuhan; Fremling, Christoffer; Anderson, Joseph P; Schulze, Steve; Kumar, Harsh; Anupama, G. C; Barway, Sudhanshu; Bellm, Eric C; Bhalerao, Varun; Chen, Ting-Wan; Duev, Dmitry A; Galbany, Llu´ıs; Graham, Matthew J; Gromadzk, Mariusz; Gutierrez, Claudia P; Ihanec, Nada; Inserra, Cosimo; Kasliwal, Mansi M; Kool, Erik C; Kulkarni, S. R; Laher, Russ R; Masci, Frank J; Neill, James D; Nicholl, Matt; Pursiainen, Miika; Roestel, Joannes van; Sharma, Yashvi; Sollerman, Jesper; Walters, Richard; Wiseman, Philip (Oxford University Press on behalf of Royal Astronomical Society, 2021-12)
    The many unusual properties of the enigmatic AT2018cow suggested that at least some subset of the empirical class of fast blue optical transients (FBOTs) represents a genuinely new astrophysical phenomenon. Unfortunately, ...
  • SN2019wxt: An Ultrastripped Supernova Candidate Discovered in the Electromagnetic Follow-up of a Gravitational Wave Trigger 
    Shivkumar, Hinna; Jaodand, Amruta D.; Balasubramanian, Arvind; Fremling, Christoffer; Corsi, Alessandra; Tzanidakis, Anastasios; Nissanke, Samaya; Kasliwal, Mansi; Brightman, Murray; Raaijmakers, Geert; Madsen, Kristin Kruse; Harrison, Fiona; Carbone, Dario; Nayana, A. J; Désert, Jean-Michel; Andreoni, Igor (American Astronomical Society, 2023-07-20)
    We present optical, radio, and X-ray observations of a rapidly evolving transient SN2019wxt (PS19hgw), discovered during the search for an electromagnetic counterpart to the gravitational-wave (GW) trigger S191213g. Although ...

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