Universität zu Köln

Stevenson, Simon ORCID: 0000-0002-6100-537X, Sampson, Matthew, Powell, Jade, Vigna-Gomez, Alejandro, Neijssel, Coenraad J., Szecsi, Dorottya and Mandel, Ilya ORCID: 0000-0002-6134-8946 (2019). The Impact of Pair-instability Mass Loss on the Binary Black Hole Mass Distribution. Astrophys. J., 882 (2). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4357

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Abstract

A population of binary black hole mergers has now been observed in gravitational waves by Advanced LIGO and Virgo. The masses of these black holes appear to show evidence for a pileup between 30 and 45 M-circle dot and a cutoff above similar to 45 M-circle dot. One possible explanation for such a pileup and subsequent cutoff are pulsational pair-instability supernovae (PPISNe) and pair-instability supernovae (PISNe) in massive stars. We investigate the plausibility of this explanation in the context of isolated massive binaries. We study a population of massive binaries using the rapid population synthesis software COMPAS, incorporating models for PPISNe and PISNe. Our models predict a maximum black hole mass of 40 M-circle dot. We expect similar to 10% of all binary black hole mergers at redshift z = 0 will include at least one component that went through a PPISN (with mass 30-40 M-circle dot), constituting similar to 20%-50% of binary black hole mergers observed during the first two observing runs of Advanced LIGO and Virgo. Empirical models based on fitting the gravitational-wave mass measurements to a combination of a power law and a Gaussian find a fraction too large to be associated with PPISNe in our models. The rates of PPISNe and PISNe track the low metallicity star formation rate, increasing out to redshift z = 2. These predictions may be tested both with future gravitational-wave observations and with observations of superluminous supernovae.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Stevenson, Simon UNSPECIFIED orcid.org/0000-0002-6100-537X UNSPECIFIED Sampson, Matthew UNSPECIFIED UNSPECIFIED UNSPECIFIED Powell, Jade UNSPECIFIED UNSPECIFIED UNSPECIFIED Vigna-Gomez, Alejandro UNSPECIFIED UNSPECIFIED UNSPECIFIED Neijssel, Coenraad J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Szecsi, Dorottya UNSPECIFIED UNSPECIFIED UNSPECIFIED Mandel, Ilya UNSPECIFIED orcid.org/0000-0002-6134-8946 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-141552
DOI:	10.3847/1538-4357/ab3981
Journal or Publication Title:	Astrophys. J.
Volume:	882
Number:	2
Date:	2019
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1538-4357
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language COSMIC STAR-FORMATION; X-RAY BINARIES; GRAVITATIONAL-WAVE; SUPERLUMINOUS SUPERNOVAE; STELLAR EVOLUTION; FAILED SUPERNOVAE; PROGENITORS; EXPLOSION; MERGERS; MODELS Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14155