2007ApJ...654L..25H

Query : 2007ApJ...654L..25H

2007ApJ...654L..25H - Astrophys. J., 654, L25-L28 (2007/January-1)

Multicolor shallow decay and chromatic breaks in the GRB 050319 optical afterglow.

HUANG K.Y., URATA Y., KUO P.H., IP W.H., IOKA K., AOKI T., CHEN C.W., CHEN W.P., ISOGAI M., LIN H.C., MAKISHIMA K., MITO H., MIYATA T., NAKADA Y., NISHIURA S., ONDA K., QIU Y., SOYANO T., TAMAGAWA T., TARUSAWA K., TASHIRO M. and YOSHIOKA T.

Abstract (from CDS):

Multiwavelength observations of the optical afterglow of GRB 050319 were performed from 1.31 to 9.92 hr after the burst. Our R-band light curves, combined with other published data, can be described by the smooth broken power-law function, with α1=-0.84±0.02 to α2=-0.48±0.03, 0.04 days after the gamma-ray burst. The optical light curves are characterized by shallow decays–as was also observed in the X-rays–which may have a similar origin, related to energy injection. However, our observations indicate that there is still a puzzle concerning the chromatic breaks in the R-band light curve (at 0.04 days) and the X-ray light curve (at 0.004 days) that remains to be solved.

Abstract Copyright: ∼

Journal keyword(s): Gamma Rays: Bursts

VizieR on-line data: <Available at CDS (J/ApJ/654/L25): table1.dat>

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GRB 050319 gB 10 16 47.900 +43 32 53.80   18.02 17.01     ~ 274 0

Query : 2007ApJ...654L..25H

Basic data :
GRB 050319 -- Gamma-ray Burst
Other object types: otypes_help 		gB (GRB,XRF), UV (2009ApJ)
ICRS coord. (ep=J2000) : 		10 16 47.900 +43 32 53.80 (Ultraviolet) [ 300 300 90 ] C 2009ApJ...690..163R
FK4 coord. (ep=B1950 eq=1950) : 		10 13 46.015 +43 47 53.02 [ 300 300 90 ]
Gal coord. (ep=J2000) : 		174.825906 +54.871369 [ 300 300 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 268233 [~] / z(~) 3.2425 [~] / cz 972077 [~]
   D 2009ApJS..185..526F
Fluxes (2) :
B 18.02 [~] D 2009ApJ...690..163R
V 17.01 [~] D 2009ApJ...690..163R
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Identifiers (2) :
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GRB 050319 XRF 050319

References (274 between 1850 and 2026) (Total 274)
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