The Source Density And Observability Of Pair-Instability Supernovae From The First Stars

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dc.contributor.utaustinauthorHummel, Jacob A.en_US
dc.contributor.utaustinauthorPawlik, Andreas H.en_US
dc.contributor.utaustinauthorMilosavljevic, Milosen_US
dc.contributor.utaustinauthorBromm, Volkeren_US
dc.creatorHummel, Jacob A.en_US
dc.creatorPawlik, Andreas H.en_US
dc.creatorMilosavljevic, Milosen_US
dc.creatorBromm, Volkeren_US
dc.date.accessioned2016-04-28T19:31:52Z
dc.date.available2016-04-28T19:31:52Z
dc.date.issued2012-08en
dc.description.abstractTheoretical models predict that some of the first stars ended their lives as extremely energetic pair-instability supernovae (PISNe). With energies approaching 10(53) erg, these supernovae are expected to be within the detection limits of the upcoming James Webb Space Telescope (JWST), allowing observational constraints to be placed on the properties of the first stars. We estimate the source density of PISNe using a semi-analytic halo mass function based approach, accounting for the effects of feedback from star formation on the PISN rate using cosmological simulations. We estimate an upper limit of similar to 0.2 PISNe per JWST field of view at any given time. Feedback can reduce this rate significantly, e. g., lowering it to as little as one PISN per 4000 JWST fields of view for the most pessimistic explosion models. We also find that the main obstacle to observing PISNe from the first stars is their scarcity, not their faintness; exposures longer than a few times 10(4) s will do little to increase the number of PISNe found. Given this, we suggest a mosaic style search strategy for detecting PISNe from the first stars. Even rather high-redshift PISNe are unlikely to be missed by moderate exposures, and a large number of pointings will be required to ensure a detection.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipNSF AST-0708795, AST-1009928en_US
dc.description.sponsorshipNASA ATFP NNX09AJ33Gen_US
dc.identifierdoi:10.15781/T28Z3B
dc.identifier.Filename2012_08_source.pdfen_US
dc.identifier.citationHummel, Jacob A., Andreas H. Pawlik, Miloﾚ Milosavljevi?, and Volker Bromm. "The source density and observability of pair-instability supernovae from the first stars." The Astrophysical Journal, Vol. 755, No. 1 (Aug., 2012): 72.en_US
dc.identifier.doi10.1088/0004-637x/755/1/72en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/34654
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journalen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectcosmology: theoryen_US
dc.subjectdark ages, reionization, first starsen_US
dc.subjectearly universeen_US
dc.subjectgalaxies: formationen_US
dc.subjectsupernovae: generalen_US
dc.subjectpopulation-iii starsen_US
dc.subjectmetal-free starsen_US
dc.subjectradiative feedbacken_US
dc.subject3-dimensional simulationsen_US
dc.subjectcosmological objectsen_US
dc.subjectintergalactic mediumen_US
dc.subjectchemical enrichmenten_US
dc.subjectprimordial starsen_US
dc.subjectearly universeen_US
dc.subjectmass functionen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleThe Source Density And Observability Of Pair-Instability Supernovae From The First Starsen_US
dc.typeArticleen_US

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