Prompt optical observations of GRB 050319 with the swift UVOT

K. O. Mason, A. J. Blustin, P. Boyd, S. T. Holland, M. J. Page, P. Roming, M. Still, B. Zhang, A. Breeveld, M. De Pasquale, N. Gehrels, C. Gronwall, S. Hunsberger, M. Ivanushkina, W. Landsman, K. Mcgowan, J. Nousek, T. Poole, J. Rhoads, S. Rosen & 1 others P. Schady

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The UVOT telescope on the Swift observatory has detected optical afterglow emission from GRB 050319. The flux declined with a power-law slope of α = -0.57 between the start of observations some 230 s after the burst onset (90 s after the burst trigger) until it faded below the sensitivity threshold of the instrument after ∼5 × 104 s. There is no evidence for the rapidly declining component in the early light curve that is seen at the same time in the X-ray band. The afterglow is not detected in UVOT shortward of the B band, suggesting a redshift of about 3.5. The optical V-band emission lies on the extension of the X-ray spectrum, with an optical-to-X-ray slope of β= -0.8. The relatively flat decay rate of the burst suggests that the central engine continues to inject energy into the fireball for as long as a few × 104 s after the burst.

Original languageEnglish (US)
Pages (from-to)311-315
Number of pages5
JournalAstrophysical Journal
Volume639
Issue number1 I
DOIs
StatePublished - Mar 1 2006
Externally publishedYes

Fingerprint

bursts
afterglows
Swift observatory
slopes
x rays
fireballs
engine
power law
observatory
extremely high frequencies
light curve
decay rates
engines
actuators
telescopes
thresholds
energy
sensitivity
rate

Keywords

  • Astrometry
  • Galaxies: distances and redshifts
  • Gamma rays: bursts
  • Shock waves
  • X-rays: individual (GRB 050319)

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Mason, K. O., Blustin, A. J., Boyd, P., Holland, S. T., Page, M. J., Roming, P., ... Schady, P. (2006). Prompt optical observations of GRB 050319 with the swift UVOT. Astrophysical Journal, 639(1 I), 311-315. https://doi.org/10.1086/499293

Prompt optical observations of GRB 050319 with the swift UVOT. / Mason, K. O.; Blustin, A. J.; Boyd, P.; Holland, S. T.; Page, M. J.; Roming, P.; Still, M.; Zhang, B.; Breeveld, A.; De Pasquale, M.; Gehrels, N.; Gronwall, C.; Hunsberger, S.; Ivanushkina, M.; Landsman, W.; Mcgowan, K.; Nousek, J.; Poole, T.; Rhoads, J.; Rosen, S.; Schady, P.

In: Astrophysical Journal, Vol. 639, No. 1 I, 01.03.2006, p. 311-315.

Research output: Contribution to journalArticle

Mason, KO, Blustin, AJ, Boyd, P, Holland, ST, Page, MJ, Roming, P, Still, M, Zhang, B, Breeveld, A, De Pasquale, M, Gehrels, N, Gronwall, C, Hunsberger, S, Ivanushkina, M, Landsman, W, Mcgowan, K, Nousek, J, Poole, T, Rhoads, J, Rosen, S & Schady, P 2006, 'Prompt optical observations of GRB 050319 with the swift UVOT', Astrophysical Journal, vol. 639, no. 1 I, pp. 311-315. https://doi.org/10.1086/499293
Mason KO, Blustin AJ, Boyd P, Holland ST, Page MJ, Roming P et al. Prompt optical observations of GRB 050319 with the swift UVOT. Astrophysical Journal. 2006 Mar 1;639(1 I):311-315. https://doi.org/10.1086/499293
Mason, K. O. ; Blustin, A. J. ; Boyd, P. ; Holland, S. T. ; Page, M. J. ; Roming, P. ; Still, M. ; Zhang, B. ; Breeveld, A. ; De Pasquale, M. ; Gehrels, N. ; Gronwall, C. ; Hunsberger, S. ; Ivanushkina, M. ; Landsman, W. ; Mcgowan, K. ; Nousek, J. ; Poole, T. ; Rhoads, J. ; Rosen, S. ; Schady, P. / Prompt optical observations of GRB 050319 with the swift UVOT. In: Astrophysical Journal. 2006 ; Vol. 639, No. 1 I. pp. 311-315.
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