A
Assaf Horesh
Researcher at Hebrew University of Jerusalem
Publications - 219
Citations - 15723
Assaf Horesh is an academic researcher from Hebrew University of Jerusalem. The author has contributed to research in topics: Supernova & Galaxy. The author has an hindex of 62, co-authored 211 publications receiving 13426 citations. Previous affiliations of Assaf Horesh include Tel Aviv University & Weizmann Institute of Science.
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Journal ArticleDOI
The rise of SN2014J in the nearby galaxy M82
Ariel Goobar,Joel Johansson,Rahman Amanullah,Y. Cao,Daniel A. Perley,M. M. Kasliwal,R. Ferretti,P. E. Nugent,Chelsea E. Harris,Avishay Gal-Yam,Eran O. Ofek,Shriharsh P. Tendulkar,Michel Dennefeld,S. Valenti,Iair Arcavi,Debabrata Banerjee,V. Venkataraman,Vishal Joshi,N. M. Ashok,S. B. Cenko,Rodrigo F. Díaz,Christoffer Fremling,Assaf Horesh,D. A. Howell,S. R. Kulkarni,S. Papadogiannakis,Tanja Petrushevska,D. J. Sand,Jesper Sollerman,Vallery Stanishev,Josh Bloom,Jason Surace,Trent J. Dupuy,Michael C. Liu +33 more
TL;DR: In this article, the first set of optical, near-IR and mid-IR observations of SN2014J, orchestrated by the intermediate Palomar Transient Factory (iPTF), show that it is a spectroscopically normal Type Ia supernova, albeit exhibiting high-velocity features in its spectrum and heavily reddened by dust in the host galaxy.
Journal ArticleDOI
Early radio and X-ray observations of the youngest nearby type Ia supernova PTF11kly (SN 2011fe)
Assaf Horesh,S. R. Kulkarni,Derek B. Fox,John M. Carpenter,Mansi M. Kasliwal,Eran O. Ofek,Robert M. Quimby,Avishay Gal-Yam,S. Bradley Cenko,A. G. de Bruyn,Atish Kamble,Ralph A. M. J. Wijers,Alexander J. van der Horst,Chryssa Kouveliotou,Philipp Podsiadlowski,Mark Sullivan,Kate Maguire,D. Andrew Howell,Peter Nugent,Neil Gehrels,Nicholas M. Law,Dovi Poznanski,Michael M. Shara +22 more
TL;DR: In this article, the authors present the analysis of the radio and X-ray observations, yielding the tightest constraints yet placed on the pre-explosion mass-loss rate from the progenitor system of this supernova.
Journal ArticleDOI
Supernovae in the Subaru Deep Field: the rate and delay-time distribution of Type Ia supernovae out to redshift 2
Or Graur,Dovi Poznanski,Dovi Poznanski,Dan Maoz,Naoki Yasuda,Tomonori Totani,Masataka Fukugita,Alexei V. Filippenko,Ryan J. Foley,Ryan J. Foley,Jeffrey M. Silverman,Avishay Gal-Yam,Assaf Horesh,Buell T. Jannuzi +13 more
TL;DR: In this paper, the authors presented the results of a supernova survey in the Subaru Deep Field (SDF) over a period of 3 years, observing the SDF on four independent epochs with Suprime-Cam on the Subaru 8.2m telescope.
Journal ArticleDOI
Hubble Space Telescope studies of low‐redshift Type Ia supernovae: evolution with redshift and ultraviolet spectral trends
Kate Maguire,Mark Sullivan,Rowan Ellis,Peter Nugent,Peter Nugent,D. A. Howell,D. A. Howell,Avishay Gal-Yam,Jeff Cooke,Paolo A. Mazzali,Yen-Chen Pan,Ben Dilday,Ben Dilday,R. C. Thomas,Iair Arcavi,Sagi Ben-Ami,D. Bersier,Federica B. Bianco,Federica B. Bianco,Benjamin J. Fulton,I. M. Hook,I. M. Hook,Assaf Horesh,Eric Hsiao,Phil A. James,Philipp Podsiadlowski,Emma S. Walker,Ofer Yaron,Mansi M. Kasliwal,Russ R. Laher,Nicholas M. Law,Eran O. Ofek,Dovi Poznanski,Jason Surace +33 more
TL;DR: In this article, the authors present an analysis of the maximum light, near-ultraviolet (NUV; 2900 < λ < 5500 A) spectra of 32 low-redshift (0.001 < z < 0.08) Type Ia supernovae (SNe Ia), obtained with the Hubble Space Telescope (HST) using the Space Telescope Imaging Spectrograph.
Journal ArticleDOI
Significant and variable linear polarization during the prompt optical flash of GRB 160625B
Eleonora Troja,Eleonora Troja,V. M. Lipunov,Carole Mundell,Nathaniel R. Butler,Alan M. Watson,Shiho Kobayashi,S. B. Cenko,S. B. Cenko,F. E. Marshall,Roberto Ricci,A. S. Fruchter,M. H. Wieringa,E. S. Gorbovskoy,V. G. Kornilov,Alexander Kutyrev,Alexander Kutyrev,William H. Lee,Vicki Toy,N. V. Tyurina,N. M. Budnev,David A. H. Buckley,J. Gonzalez,O. A. Gress,Assaf Horesh,Mikhail Panasyuk,Jason X. Prochaska,Enrico Ramirez-Ruiz,R. Rebolo Lopez,Michael G. Richer,Carlos Román-Zúñiga,Miquel Serra-Ricart,V. Yurkov,N. Gehrels +33 more
TL;DR: The authors' measurements probe the structure of the magnetic field at an early stage of the jet, closer to its central black hole, and show that the prompt phase is produced via fast-cooling synchrotron radiation in a large-scale magnetic field that is advected from the black hole and distorted by dissipation processes within the jet.