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dc.contributor.advisorMoran, Jamesen_US
dc.contributor.advisorBerger, Edoen_US
dc.contributor.authorLaskar, Tanmoyen_US
dc.date.accessioned2015-07-17T16:52:45Z
dc.date.created2015-05en_US
dc.date.issued2015-05-17en_US
dc.date.submitted2015en_US
dc.identifier.citationLaskar, Tanmoy. 2015. The Diversity and Versatility of Gamma-Ray Bursts. Doctoral dissertation, Harvard University, Graduate School of Arts & Sciences.en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:17467212
dc.description.abstractGamma-ray bursts (GRBs) are the most energetic explosions in the Universe, thus providing a unique laboratory for the study of extreme astrophysical processes. In parallel, their large luminosity makes GRBs a premier probe of the early Universe. My thesis has explored and exploited both aspects of GRB science by addressing the following fundamental open questions: 1) what is the nature of the GRB ejecta?, 2) how does the GRB progenitor population evolve with redshift, and 3) how can GRBs be used to probe the high-redshift Universe? To answer these questions, I present the first multi-wavelength detection and modeling of a GRB reverse shock, a comprehensive analysis of the plateau phase of GRB light curves, studies of the evolution of the progenitor population to redshifts, z~9, and demonstrate the use of GRBs as probes of galaxy formation and evolution through the first galaxy mass-metallicity relation at z~3-5. I find support for baryonic ejecta in GRB~130427A, evidence that GRB jets contain a large amount of energy in slow-moving ejecta, and proof that the GRB progenitor population does not evolve to the highest redshifts at which it has yet been observed. Building on the decade of observations by the Swift GRB mission, future observations and modeling of GRBs and their host galaxies will provide clues to these and other open questions in GRB science, allowing for the first statistical studies of their progenitors and host environments to the epoch of reionization and beyond.en_US
dc.description.sponsorshipAstronomyen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoenen_US
dash.licenseLAAen_US
dc.subjectPhysics, Astronomy and Astrophysicsen_US
dc.titleThe Diversity and Versatility of Gamma-Ray Burstsen_US
dc.typeThesis or Dissertationen_US
dash.depositing.authorLaskar, Tanmoyen_US
dc.date.available2015-07-17T16:52:45Z
thesis.degree.date2015en_US
thesis.degree.grantorGraduate School of Arts & Sciencesen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
dc.contributor.committeeMemberNarayan, Rameshen_US
dc.contributor.committeeMemberSoderberg, Aliciaen_US
dc.contributor.committeeMemberGehrels, Neilen_US
dc.type.materialtexten_US
thesis.degree.departmentAstronomyen_US
dash.identifier.vireohttp://etds.lib.harvard.edu/gsas/admin/view/440en_US
dc.description.keywordstime-domain astronomy; Gamma-ray burstsen_US
dash.author.emailtanmoylaskar@gmail.comen_US
dash.identifier.drsurn-3:HUL.DRS.OBJECT:25164329en_US
dash.identifier.orcid0000-0003-1792-2338en_US
dash.contributor.affiliatedLaskar, Tanmoy
dc.identifier.orcid0000-0003-1792-2338


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