1. RRI Digital Repository
  2. 04. Astronomy and Astrophysics
  3. Research Papers (A&A)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6308
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDutta, Jayanta-
dc.contributor.authorNath, Biman B.-
dc.contributor.authorClark, Paul C.-
dc.contributor.authorKlessen, Ralf S.-
dc.date.accessioned2015-09-30T12:39:45Z-
dc.date.available2015-09-30T12:39:45Z-
dc.date.issued2015-06-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society , 2015, Vol. 450, p 202-208en
dc.identifier.issn1365-2966 - (online)-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/2289/6308-
dc.descriptionOpen Accessen
dc.description.abstractIt has been shown that the behaviour of primordial gas collapsing in a dark matter minihalo can depend on the adopted choice of three-body H2 formation rate. The uncertainties in this rate span two orders of magnitude in the current literature, and so it remains a source of uncertainty in our knowledge of Population III star formation. Here, we investigate how the amount of fragmentation in primordial gas depends on the adopted three-body rate. We present the results of calculations that follow the chemical and thermal evolution of primordial gas as it collapses in two dark matter minihaloes. Our results on the effect of three-body rate on the evolution until the first protostar forms agree well with previous studies. However, our modified version of gadget-2 smoothed particle hydrodynamics also includes sink particles, which allows us to follow the initial evolution of the accretion disc that builds up on the centre of each halo, and capture the fragmentation in gas as well as its dependence on the adopted three-body H2 formation rate. We find that the fragmentation behaviour of the gas is only marginally affected by the choice of three-body rate co-efficient, and that halo-to-halo differences are of equal importance in affecting the final mass distribution of stars.en
dc.language.isoenen
dc.publisherOxford University Press for the RASen
dc.relation.urihttp://adsabs.harvard.edu/abs/2015MNRAS.450..202Den
dc.relation.urihttp://arxiv.org/abs/1503.08932en
dc.relation.urihttp://dx.doi.org/10.1093/mnras/stv664en
dc.rights2015 The authors & the Royal Astronomical Society.en
dc.subjecthydrodynamics instabilitiesen
dc.titleThe role of three-body H2 formation in the fragmentation of primordial gasen
dc.typeArticleen
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
2015_MNRAS_450_202.pdf
  Restricted Access		Open Access1.38 MBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.