Gamma-ray bursts: cosmic rulers for the high-redshift universe?
نویسندگان
چکیده
منابع مشابه
Gamma-ray bursts: cosmic rulers for the high-redshift universe?
The desire to extend the Hubble Diagram to higher redshifts than the range of current Type 1a Supernovae observations has prompted investigation into spectral correlations in gamma-ray bursts (GBRs), in the hope that standard candle-like properties can be identified. In this paper, we discuss the potential of these new 'cosmic rulers' and highlight their limitations by investigating the constra...
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The best measure of the Universe should be done using a standard “ruler” at any redshift. Type Ia Supernovae (SN Ia) probe the universe up to z∼1.5, while the Cosmic Microwave Background (CMB) primary anisotropies concern basically z ∼1000. Apparently, Gamma–Ray Bursts (GRBs) are all but standard candles. However, their emission is collimated and the collimation–corrected energy correlates tigh...
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There is increasingly strong evidence that gamma-ray bursts (GRBs) are associated with star-forming galaxies, and occur near or in the star-forming regions of these galaxies. These associations provide indirect evidence that at least the long GRBs detected by BeppoSAX are a result of the collapse of massive stars. The recent evidence that the light curves and the spectra of the afterglows of GR...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2007
ISSN: 1364-503X,1471-2962
DOI: 10.1098/rsta.2006.1991