C
C. Ward
Researcher at University of California, Santa Cruz
Publications - 4
Citations - 223
C. Ward is an academic researcher from University of California, Santa Cruz. The author has contributed to research in topics: Black hole & Supernova. The author has an hindex of 3, co-authored 4 publications receiving 147 citations.
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Journal ArticleDOI
The fast, luminous ultraviolet transient AT2018cow: extreme supernova, or disruption of a star by an intermediate-mass black hole?
Daniel A. Perley,Paolo A. Mazzali,Paolo A. Mazzali,Lin Yan,S. Bradley Cenko,S. Bradley Cenko,Suvi Gezari,Kirsty Taggart,N. Blagorodnova,Christoffer Fremling,Brenna Mockler,Brenna Mockler,Avinash Singh,Avinash Singh,Nozomu Tominaga,Nozomu Tominaga,Masaomi Tanaka,Alan M. Watson,T. Ahumada,G. C. Anupama,Chris Ashall,Rosa L. Becerra,D. Bersier,Varun Bhalerao,Joshua S. Bloom,Nathaniel R. Butler,Chris M. Copperwheat,Michael W. Coughlin,Kaushik De,Andrew J. Drake,Dmitry A. Duev,S. Frederick,J. Jesús González,Ariel Goobar,Marianne Heida,Anna Y. Q. Ho,John C. Horst,Tiara Hung,Ryosuke Itoh,Jacob E. Jencson,Mansi M. Kasliwal,Nobuyuki Kawai,Tanazza Khanam,Shrinivas R. Kulkarni,Brajesh Kumar,Harsh Kumar,A. Kutyrev,A. Kutyrev,William H. Lee,Keiichi Maeda,Ashish Mahabal,K. L. Murata,James D. Neill,Chow-Choong Ngeow,Bryan E. Penprase,Elena Pian,Robert M. Quimby,Robert M. Quimby,Enrico Ramirez-Ruiz,Michael G. Richer,Carlos Román-Zúñiga,D. K. Sahu,S. Srivastav,Quentin J Socia,Jesper Sollerman,Yutaro Tachibana,Francesco Taddia,Samaporn Tinyanont,Eleonora Troja,Eleonora Troja,C. Ward,Jerrick Wee,Po-Chieh Yu +72 more
TL;DR: In this article, the spectrum remains extremely hot throughout its evolution, and the photospheric radius contracts with time (receding below R <10^14 cm after 1 month).
Journal ArticleDOI
Transient processing and analysis using $\texttt{AMPEL}$: Alert Management, Photometry and Evaluation of Lightcurves
J. Nordin,V. Brinnel,J. van Santen,Mattia Bulla,Ulrich Feindt,Anna Franckowiak,Christoffer Fremling,Avishay Gal-Yam,M. Giomi,M. Kowalski,A. A. Mahabal,N. Miranda,L. Rauch,M. Rigault,Steve Schulze,Simeon Reusch,Jesper Sollerman,Robert Stein,O. Yaron,S. van Velzen,C. Ward +20 more
TL;DR: AMPEL as mentioned in this paper is an analysis framework designed for high-throughput surveys and suited for streamed data, which combines the functionality of an alert broker with a generic framework capable of hosting user-contributed code, that encourages provenance and keeps track of the varying information states that a transient displays.
AMPEL: Alert Management, Photometry, and Evaluation of Light curves
J. Nordin,V. Brinnel,J. van Santen,Mattia Bulla,Ulrich Feindt,Anna Franckowiak,Christoffer Fremling,Avishay Gal-Yam,M. Giomi,M. Kowalski,A. A. Mahabal,N. Miranda,L. Rauch,Simeon Reusch,M. Rigault,S. Schulze,Jesper Sollerman,Robert Stein,O. Yaron,S. van Velzen,C. Ward +20 more
TL;DR: How users can design their own channels for inclusion in the AMPEL live instance that parses the ZTF stream and the real-time submission of high quality extragalactic supernova candidates to the TNS is introduced.