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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7562
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dc.contributor.authorJana, Ranita-
dc.contributor.authorGupta, Siddhartha-
dc.contributor.authorNath, Biman B.-
dc.date.accessioned2020-10-28T10:37:14Z-
dc.date.available2020-10-28T10:37:14Z-
dc.date.issued2020-09-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2020, Vol.497, p2623–2640en_US
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 (online)-
dc.identifier.urihttp://hdl.handle.net/2289/7562-
dc.descriptionOpen Accessen_US
dc.description.abstractUsing an idealized set-up, we investigate the dynamical role of cosmic rays (CRs) in the early stages of galactic outflows for galaxies of halo masses 108, 1011, and 1012 M. The outflow is launched from a central region in the galactic disc where we consider three different constant star formation rates (0.1, 1, and 10 M yr−1) over a dynamical time-scale of 50 Myr. We determine the temperature distribution of the gas and find that CRs can reduce the temperature of the shocked gas, which is consistent with previous results. However, we show that CRs do not have any noticeable effect on the mass loading by the outflow. We find that CRs can reduce the size of the outflow, which contradicts previous claims of efficient dynamical impact of CRs; however, it is consistent with earlier theoretical models of CR-driven blastwave as well as stellar wind. We discuss the dependence of our results on CR injection prescriptions and compare them with earlier studies. We conclude that in the early stages of galactic outflows the dynamical role of CRs is not important.en_US
dc.language.isoenen_US
dc.publisherOxford University Press on behalf of the Royal Astronomical Societyen_US
dc.relation.urihttps://academic.oup.com/mnras/article/497/3/2623/5870111en_US
dc.relation.urihttp://dx.doi.org/10.1093/mnras/staa2025en_US
dc.relation.urihttps://arxiv.org/abs/2007.00696en_US
dc.rights2020 The Author(s)en_US
dc.subjectstarsen_US
dc.subjectwindsen_US
dc.subjectoutflows – ISMen_US
dc.subjectcosmic rays – galaxiesen_US
dc.subjectstar formation – galaxiesen_US
dc.subjectevolution – galaxiesen_US
dc.subjectstarbursten_US
dc.titleRole of cosmic rays in the early stages of galactic outflowsen_US
dc.typeArticleen_US
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