GeV photons from the upscattering of supernova shock breakout x-rays by an outside gamma-ray burst jet

Xiang Yu Wang, Peter Istvan Meszaros

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Shock breakout X-ray emission has been reported for the first time from a supernova connected with a gamma-ray burst, namely, GRB 060218/SN 2006aj. The gamma-ray emission and the power-law-decaying X-ray afterglow are ascribed to a highly relativistic jet, while the thermal soft X-rays are thought to be produced when the radiation-dominated shock breaks from the optically thick stellar wind. We study the inverse Compton (IC) emission of the breakout thermal soft X-rays scattered by relativistic electrons in the jet forward shock, which is expected to be at larger radii than the breakout shock. This IC emission produces sub-GeV to GeV photons, which may be detectable by GLAST. The detection of such GeV photons simultaneously with the supernova shock breakout emission would provide us with evidence for the presence of a GRB jet ahead of the shock while the shock is breaking out. The anisotropic scattering between the X-rays and relativistic electrons may lead to large angle emission outside of the jet opening angle. This has implications for the detection of GeV photons from "burstless" Type Ib/c hypernova shock breakout, which, due to its more isotropic emission, might be observed with wide-field X-ray cameras such as Lobster.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume643
Issue number2 II
DOIs
StatePublished - Jun 1 2006

Fingerprint

gamma ray bursts
supernovae
shock
photons
x rays
electron
Fermi Gamma-ray Space Telescope
lobster
stellar winds
afterglows
power law
scattering
electrons
cameras
gamma rays
radii
radiation

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

@article{34340977ae7b44ddb402423e995d5e0b,
title = "GeV photons from the upscattering of supernova shock breakout x-rays by an outside gamma-ray burst jet",
abstract = "Shock breakout X-ray emission has been reported for the first time from a supernova connected with a gamma-ray burst, namely, GRB 060218/SN 2006aj. The gamma-ray emission and the power-law-decaying X-ray afterglow are ascribed to a highly relativistic jet, while the thermal soft X-rays are thought to be produced when the radiation-dominated shock breaks from the optically thick stellar wind. We study the inverse Compton (IC) emission of the breakout thermal soft X-rays scattered by relativistic electrons in the jet forward shock, which is expected to be at larger radii than the breakout shock. This IC emission produces sub-GeV to GeV photons, which may be detectable by GLAST. The detection of such GeV photons simultaneously with the supernova shock breakout emission would provide us with evidence for the presence of a GRB jet ahead of the shock while the shock is breaking out. The anisotropic scattering between the X-rays and relativistic electrons may lead to large angle emission outside of the jet opening angle. This has implications for the detection of GeV photons from {"}burstless{"} Type Ib/c hypernova shock breakout, which, due to its more isotropic emission, might be observed with wide-field X-ray cameras such as Lobster.",
author = "Wang, {Xiang Yu} and Meszaros, {Peter Istvan}",
year = "2006",
month = "6",
day = "1",
doi = "10.1086/505142",
language = "English (US)",
volume = "643",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2 II",

}

GeV photons from the upscattering of supernova shock breakout x-rays by an outside gamma-ray burst jet. / Wang, Xiang Yu; Meszaros, Peter Istvan.

In: Astrophysical Journal, Vol. 643, No. 2 II, 01.06.2006.

Research output: Contribution to journalArticle

TY - JOUR

T1 - GeV photons from the upscattering of supernova shock breakout x-rays by an outside gamma-ray burst jet

AU - Wang, Xiang Yu

AU - Meszaros, Peter Istvan

PY - 2006/6/1

Y1 - 2006/6/1

N2 - Shock breakout X-ray emission has been reported for the first time from a supernova connected with a gamma-ray burst, namely, GRB 060218/SN 2006aj. The gamma-ray emission and the power-law-decaying X-ray afterglow are ascribed to a highly relativistic jet, while the thermal soft X-rays are thought to be produced when the radiation-dominated shock breaks from the optically thick stellar wind. We study the inverse Compton (IC) emission of the breakout thermal soft X-rays scattered by relativistic electrons in the jet forward shock, which is expected to be at larger radii than the breakout shock. This IC emission produces sub-GeV to GeV photons, which may be detectable by GLAST. The detection of such GeV photons simultaneously with the supernova shock breakout emission would provide us with evidence for the presence of a GRB jet ahead of the shock while the shock is breaking out. The anisotropic scattering between the X-rays and relativistic electrons may lead to large angle emission outside of the jet opening angle. This has implications for the detection of GeV photons from "burstless" Type Ib/c hypernova shock breakout, which, due to its more isotropic emission, might be observed with wide-field X-ray cameras such as Lobster.

AB - Shock breakout X-ray emission has been reported for the first time from a supernova connected with a gamma-ray burst, namely, GRB 060218/SN 2006aj. The gamma-ray emission and the power-law-decaying X-ray afterglow are ascribed to a highly relativistic jet, while the thermal soft X-rays are thought to be produced when the radiation-dominated shock breaks from the optically thick stellar wind. We study the inverse Compton (IC) emission of the breakout thermal soft X-rays scattered by relativistic electrons in the jet forward shock, which is expected to be at larger radii than the breakout shock. This IC emission produces sub-GeV to GeV photons, which may be detectable by GLAST. The detection of such GeV photons simultaneously with the supernova shock breakout emission would provide us with evidence for the presence of a GRB jet ahead of the shock while the shock is breaking out. The anisotropic scattering between the X-rays and relativistic electrons may lead to large angle emission outside of the jet opening angle. This has implications for the detection of GeV photons from "burstless" Type Ib/c hypernova shock breakout, which, due to its more isotropic emission, might be observed with wide-field X-ray cameras such as Lobster.

UR - http://www.scopus.com/inward/record.url?scp=33746877888&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746877888&partnerID=8YFLogxK

U2 - 10.1086/505142

DO - 10.1086/505142

M3 - Article

VL - 643

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 II

ER -