dc.contributor.author | De Pasquale, Massımılıano | |
dc.contributor.author | D'ELIA, Valerio | |
dc.contributor.author | CHINCARINI, Guido | |
dc.contributor.author | FIORE, Fabrizio | |
dc.contributor.author | PANDEY, Shashi Bhushan | |
dc.contributor.author | Cobb, Bethany E. | |
dc.contributor.author | HOLLAND, Stephen T. | |
dc.contributor.author | MAO, Jirong | |
dc.contributor.author | SAKAMOTO, Takanori | |
dc.contributor.author | Schady, Patricia | |
dc.contributor.author | COVINO, Stefano | |
dc.contributor.author | FAN, Yi-Zhong | |
dc.contributor.author | JIN, Zhi-Ping | |
dc.contributor.author | D'AVANZO, Paolo | |
dc.contributor.author | ANTONELLI, Angelo | |
dc.date.accessioned | 2021-03-03T17:57:22Z | |
dc.date.available | 2021-03-03T17:57:22Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | HOLLAND S. T. , De Pasquale M., MAO J., SAKAMOTO T., Schady P., COVINO S., FAN Y., JIN Z., D'AVANZO P., ANTONELLI A., et al., "GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW", ASTROPHYSICAL JOURNAL, cilt.745, sa.1, 2012 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | vv_1032021 | |
dc.identifier.other | av_4c6d8b56-1264-4883-a437-a1bd3f281900 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12627/54741 | |
dc.identifier.uri | https://doi.org/10.1088/0004-637x/745/1/41 | |
dc.description.abstract | We present an analysis of the unusual optical light curve of the gamma-ray burst GRB 081029, a long-soft burst with a redshift of z = 3.8479. We combine X-ray and optical observations from the Swift X-Ray Telescope and the Swift UltraViolet/Optical Telescope with ground-based optical and infrared data obtained using the REM, ROTSE, and CTIO 1.3 m telescopes to construct a detailed data set extending from 86 s to similar to 100000 s after the BAT trigger. Our data cover a wide energy range from 10 keV to 0.77 eV (1.24 angstrom-16000 angstrom). The X-ray afterglow shows a shallow initial decay followed by a rapid decay starting at about 18000 s. The optical and infrared afterglow, however, shows an uncharacteristic rise at about 3000 s that does not correspond to any feature in the X-ray light curve. Our data are not consistent with synchrotron radiation from a jet interacting with an external medium, a two-component jet, or continuous energy injection from the central engine. We find that the optical light curves can be broadly explained by a collision between two ejecta shells within a two-component jet. A growing number of gamma-ray-burst afterglows are consistent with complex jets, which suggests that some (or all) gamma-ray-burst jets are complex and will require detailed modeling to fully understand them. | |
dc.language.iso | eng | |
dc.subject | Temel Bilimler | |
dc.subject | ASTRONOMİ VE ASTROFİZİK | |
dc.subject | Uzay bilimi | |
dc.subject | Temel Bilimler (SCI) | |
dc.subject | Fizik | |
dc.subject | Astronomi ve Astrofizik | |
dc.title | GRB 081029: A GAMMA-RAY BURST WITH A MULTI-COMPONENT AFTERGLOW | |
dc.type | Makale | |
dc.relation.journal | ASTROPHYSICAL JOURNAL | |
dc.contributor.department | National Aeronautics & Space Administration (NASA) , , | |
dc.identifier.volume | 745 | |
dc.identifier.issue | 1 | |
dc.contributor.firstauthorID | 103448 | |