Статья

An<i>HST</i>Study of the Supernovae Accompanying GRB 040924 and GRB 041006

A. M. SoderbergDivision of Physics, Mathematics, and Astronomy, 105-24, California Institute of Technology, Pasadena, CA 91125S. R. KulkarniDivision of Physics, Mathematics, and Astronomy, 105-24, California Institute of Technology, Pasadena, CA 91125P. A. PriceUniversity of Hawaii, Institute of Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822-1897D. B. FoxDivision of Physics, Mathematics, and Astronomy, 105-24, California Institute of Technology, Pasadena, CA 91125E. BergerDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544D.‐S. MoonRobert A. Millikan FellowS. B. CenkoSpace Radiation Laboratory 220-47, California Institute of Technology, Pasadena, CA 91125A. Gal‐YamDivision of Physics, Mathematics, and Astronomy, 105-24, California Institute of Technology, Pasadena, CA 91125D. A. FrailNational Radio Astronomy Observatory, Socorro, NM 87801R. A. ChevalierDepartment of Astronomy, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903-0818L. CowieUniversity of Hawaii, Institute of Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822-1897G. S. Da CostaResearch School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, AustraliaA. MacFadyenDivision of Physics, Mathematics, and Astronomy, 105-24, California Institute of Technology, Pasadena, CA 91125P. J. McCarthyObservatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101N. NoelInstituto de Astrofisica de Canarias, C/Via Lactea s/n, E-38200, La Laguna, Tenerife, SpainH. S. ParkLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550B. A. PetersonResearch School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, AustraliaM. M. PhillipsObservatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101M. RauchObservatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101A. RestCerro Tololo Inter-American Observatory, Casilla 603, La Serena, ChileJ. RichResearch School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, AustraliaK. RothGemini Observatory, 670 North A'ohoku Place, Hilo, HI 96720M. RothObservatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101B. P. SchmidtResearch School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, AustraliaR. C. SmithCerro Tololo Inter-American Observatory, Casilla 603, La Serena, ChileP. R. WoodResearch School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia

2005en

ABI

Аннотация

We present the results from a Hubble Space Telescope ACS study of the supernovae (SNe) associated with gamma-ray bursts (GRBs) 040924 (z = 0.86) and 041006 (z = 0.71). We find evidence that both GRBs were associated with an SN 1998bw-like supernova dimmed by ∼ 1.5 and ∼0.3 mag, respectively, making GRB 040924 the faintest GRB-associated SN ever detected. We study the luminosity dispersion in GRB/XRF-associated SNe and compare to local Type Ibc SNe from the literature. We find significant overlap between the two samples, suggesting that GRB/XRF-associated SNe are not necessarily more luminous and do not necessarily produce more 56Ni than local SNe. Based on the current (limited) data sets, we find that the two samples may share a similar 56Ni production mechanism.

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Идентификаторы

DOI: 10.1086/498009

Цитирования и источники

Цитирований: 2Использованных источников: 0

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