@article{914631984721439bac20890bb965a7bb,
title = "Evidence for a compact wolf-rayet progenitor for the type Ic supernova PTF10vgv",
abstract = "We present the discovery of PTF10vgv, a Type Ic supernova (SN) detected by the Palomar Transient Factory, using the Palomar 48 inch telescope (P48). R-band observations of the PTF10vgv field with P48 probe the SN emission from its very early phases (about two weeks before R-band maximum) and set limits on its flux in the week prior to the discovery. Our sensitive upper limits and early detections constrain the post-shock-breakout luminosity of this event. Via comparison to numerical (analytical) models, we derive an upper-limit of R ≲ 4.5 R ⊙ (R ≲ 1 R ⊙) on the radius of the progenitor star, a direct indication in favor of a compact Wolf-Rayet star. Applying a similar analysis to the historical observations of SN1994I yields R ≲ 1/4 R ⊙ for the progenitor radius of this SN.",
keywords = "supernovae: general, supernovae: individual (PTF 10vgv)",
author = "A. Corsi and Ofek, {E. O.} and A. Gal-Yam and Frail, {D. A.} and D. Poznanski and Mazzali, {P. A.} and Kulkarni, {S. R.} and Kasliwal, {M. M.} and I. Arcavi and S. Ben-Ami and Cenko, {S. B.} and Filippenko, {A. V.} and Fox, {D. B.} and A. Horesh and Howell, {J. L.} and Kleiser, {I. K.W.} and E. Nakar and I. Rabinak and R. Sari and Silverman, {J. M.} and D. Xu and Bloom, {J. S.} and Law, {N. M.} and Nugent, {P. E.} and Quimby, {R. M.}",
note = "DOE Office of Science; UT Austin; Pennsylvania State University; Stanford; Ludwig-Maximilians-Universitat Munchen; Georg-August-Universitat Gottingen; Instituto de Astronomia de la Universidad Nacional Autonoma de Mexico; BSF; ISF; FP7/IRG; Minerva; Sieff Foundation; German-Israeli Fund (GIF); Gary & Cynthia Bengier; Richard & Rhoda Goldman Fund; TABASGO Foundation; NSF [AST-0908886, PHY-0757058]; LIGO; NASA/Swift [NNH10ZDA001N]We thank Boaz Katz and Eli Waxman for useful comments. PTF is a collaboration of Caltech, LCOGT, the Weizmann Institute, LBNL, Oxford, Columbia, IPAC, and UC Berkeley. Staff and computational resources were provided by NERSC, supported by the DOE Office of Science. Lick Observatory and the Kast spectrograph are operated by the University of California. HET and its LRS are supported by UT Austin, the Pennsylvania State University, Stanford, Ludwig-Maximilians-Universitat Munchen, Georg-August-Universitat Gottingen, and the Instituto de Astronomia de la Universidad Nacional Autonoma de Mexico. The EVLA is operated by NRAO for the NSF, under cooperative agreement by Associated Universities, Inc. We thank the staffs of the above observatories for their assistance. A. G. and S. R. K. acknowledge support from the BSF; A. G. further acknowledges support from the ISF, FP7/IRG, Minerva, the Sieff Foundation, and the German-Israeli Fund (GIF). A. V. F. and his group at UC Berkeley acknowledge generous financial assistance from Gary & Cynthia Bengier, the Richard & Rhoda Goldman Fund, the TABASGO Foundation, and NSF grant AST-0908886. A. C. acknowledges support from LIGO, which was constructed by Caltech and MIT with funding from the NSF under cooperative agreement PHY-0757058, and partial support from NASA/Swift grant NNH10ZDA001N.",
year = "2012",
month = mar,
day = "1",
doi = "https://doi.org/10.1088/2041-8205/747/1/L5",
language = "الإنجليزيّة",
volume = "747",
journal = "Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP Publishing Ltd.",
number = "1",
}