Constraining the dark GRB mystery with HETE-2 SXC localizations

J. Villasenor, R. Vanderspek, G. Ricker, Nathaniel Butler, G. Crew, A. Dullighan, J. G. Jernigan

Research output: Contribution to journalArticle

Abstract

Over 85% of the long GRBs fully localized by HETEs soft X-ray camera (SXC) have an associated fading optical counterpart, suggesting that we are close to solving the mystery of "dark" bursts. SXC localizations are characterized by small error boxes (∼1 arcmin) sent out within a few hours after the burst. Are there selection effects that may account for this favorable statistic? Examining and comparing the list of SXC detections with the overall HETE sample, we find no spectral differences between the two sets, e.g., the SXC sample spans both X-ray bright and dim bursts similar to the overall HETE sample. SXC localizations, however, have prompted fast, and deep counterpart searches over highly constrained error boxes. A large fraction of optically dark bursts are probably classified as such due to inadequate follow-up observations, and most GRBs should have a detectable optical counterpart.

Original languageEnglish (US)
Pages (from-to)1320-1324
Number of pages5
JournalAdvances in Space Research
Volume38
Issue number7
DOIs
StatePublished - 2006
Externally publishedYes

Fingerprint

X ray cameras
cameras
bursts
x rays
boxes
fading
lists
Statistics
X rays
statistics

Keywords

  • GRB
  • HETE
  • Optically dark
  • SXC

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Villasenor, J., Vanderspek, R., Ricker, G., Butler, N., Crew, G., Dullighan, A., & Jernigan, J. G. (2006). Constraining the dark GRB mystery with HETE-2 SXC localizations. Advances in Space Research, 38(7), 1320-1324. https://doi.org/10.1016/j.asr.2005.02.006

Constraining the dark GRB mystery with HETE-2 SXC localizations. / Villasenor, J.; Vanderspek, R.; Ricker, G.; Butler, Nathaniel; Crew, G.; Dullighan, A.; Jernigan, J. G.

In: Advances in Space Research, Vol. 38, No. 7, 2006, p. 1320-1324.

Research output: Contribution to journalArticle

Villasenor, J, Vanderspek, R, Ricker, G, Butler, N, Crew, G, Dullighan, A & Jernigan, JG 2006, 'Constraining the dark GRB mystery with HETE-2 SXC localizations', Advances in Space Research, vol. 38, no. 7, pp. 1320-1324. https://doi.org/10.1016/j.asr.2005.02.006
Villasenor, J. ; Vanderspek, R. ; Ricker, G. ; Butler, Nathaniel ; Crew, G. ; Dullighan, A. ; Jernigan, J. G. / Constraining the dark GRB mystery with HETE-2 SXC localizations. In: Advances in Space Research. 2006 ; Vol. 38, No. 7. pp. 1320-1324.
@article{9646471c32ab49a395b24d2ea7a16964,
title = "Constraining the dark GRB mystery with HETE-2 SXC localizations",
abstract = "Over 85{\%} of the long GRBs fully localized by HETEs soft X-ray camera (SXC) have an associated fading optical counterpart, suggesting that we are close to solving the mystery of {"}dark{"} bursts. SXC localizations are characterized by small error boxes (∼1 arcmin) sent out within a few hours after the burst. Are there selection effects that may account for this favorable statistic? Examining and comparing the list of SXC detections with the overall HETE sample, we find no spectral differences between the two sets, e.g., the SXC sample spans both X-ray bright and dim bursts similar to the overall HETE sample. SXC localizations, however, have prompted fast, and deep counterpart searches over highly constrained error boxes. A large fraction of optically dark bursts are probably classified as such due to inadequate follow-up observations, and most GRBs should have a detectable optical counterpart.",
keywords = "GRB, HETE, Optically dark, SXC",
author = "J. Villasenor and R. Vanderspek and G. Ricker and Nathaniel Butler and G. Crew and A. Dullighan and Jernigan, {J. G.}",
year = "2006",
doi = "10.1016/j.asr.2005.02.006",
language = "English (US)",
volume = "38",
pages = "1320--1324",
journal = "Advances in Space Research",
issn = "0273-1177",
publisher = "Elsevier Limited",
number = "7",

}

TY - JOUR

T1 - Constraining the dark GRB mystery with HETE-2 SXC localizations

AU - Villasenor, J.

AU - Vanderspek, R.

AU - Ricker, G.

AU - Butler, Nathaniel

AU - Crew, G.

AU - Dullighan, A.

AU - Jernigan, J. G.

PY - 2006

Y1 - 2006

N2 - Over 85% of the long GRBs fully localized by HETEs soft X-ray camera (SXC) have an associated fading optical counterpart, suggesting that we are close to solving the mystery of "dark" bursts. SXC localizations are characterized by small error boxes (∼1 arcmin) sent out within a few hours after the burst. Are there selection effects that may account for this favorable statistic? Examining and comparing the list of SXC detections with the overall HETE sample, we find no spectral differences between the two sets, e.g., the SXC sample spans both X-ray bright and dim bursts similar to the overall HETE sample. SXC localizations, however, have prompted fast, and deep counterpart searches over highly constrained error boxes. A large fraction of optically dark bursts are probably classified as such due to inadequate follow-up observations, and most GRBs should have a detectable optical counterpart.

AB - Over 85% of the long GRBs fully localized by HETEs soft X-ray camera (SXC) have an associated fading optical counterpart, suggesting that we are close to solving the mystery of "dark" bursts. SXC localizations are characterized by small error boxes (∼1 arcmin) sent out within a few hours after the burst. Are there selection effects that may account for this favorable statistic? Examining and comparing the list of SXC detections with the overall HETE sample, we find no spectral differences between the two sets, e.g., the SXC sample spans both X-ray bright and dim bursts similar to the overall HETE sample. SXC localizations, however, have prompted fast, and deep counterpart searches over highly constrained error boxes. A large fraction of optically dark bursts are probably classified as such due to inadequate follow-up observations, and most GRBs should have a detectable optical counterpart.

KW - GRB

KW - HETE

KW - Optically dark

KW - SXC

UR - http://www.scopus.com/inward/record.url?scp=33750500925&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750500925&partnerID=8YFLogxK

U2 - 10.1016/j.asr.2005.02.006

DO - 10.1016/j.asr.2005.02.006

M3 - Article

AN - SCOPUS:33750500925

VL - 38

SP - 1320

EP - 1324

JO - Advances in Space Research

JF - Advances in Space Research

SN - 0273-1177

IS - 7

ER -