2008ApJ...683L...5Y

Query : 2008ApJ...683L...5Y

2008ApJ...683L...5Y - Astrophys. J., 683, L5-L8 (2008/August-2)

Revealing the high-redshift star formation rate with gamma-ray bursts.

YUKSEL H., KISTLER M.D., BEACOM J.F. and HOPKINS A.M.

Abstract (from CDS):

While the high-z frontier of star formation rate (SFR) studies has advanced rapidly, direct measurements beyond z∼4 remain difficult, as shown by significant disagreements among different results. Gamma-ray bursts, owing to their brightness and association with massive stars, offer hope of clarifying this situation, provided that the GRB rate can be properly related to the SFR. The Swift GRB data reveal an increasing evolution in the GRB rate relative to the SFR at intermediate z; taking this into account, we use the highest-z GRB data to make a new determination of the SFR at z=4-7. Our results exceed the lowest direct SFR measurements and imply that no steep drop exists in the SFR up to at least z∼6.5. We discuss the implications of our result for cosmic reionization, the efficiency of the universe in producing stellar-mass black holes, and ``GRB feedback'' in star-forming hosts.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Gamma Rays: Bursts - Stars: Formation

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 SN 2008S ev 20 34 45.33 +60 05 58.4   19.89 18.79 17.93   SNIIn? 253 1

Query : 2008ApJ...683L...5Y

Basic data :
SN 2008S -- Transient Event
Other object types: otypes_help 		SN* (SN), ev (2012A&A)
ICRS coord. (ep=J2000) : 		20 34 45.33 +60 05 58.4 [ ] D 2008CBET.1236....1S
FK4 coord. (ep=B1950 eq=1950) : 		20 33 42.08 +59 55 33.8 [ ]
Gal coord. (ep=J2000) : 		095.66503 +11.65348 [ ]
Spectral type: 		SNIIn? D 2008yCat....1.2024B
Fluxes (3) :
B 19.89 [0.07] D 2008CBET.1340....1Y
V 18.79 [0.03] D 2008CBET.1340....1Y
R 17.93 [0.02] D 2008CBET.1340....1Y
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: 1 : 442 Display criteria :

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SN 2008S

References (253 between 1850 and 2026) (Total 253)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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