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Intermediate mass black holes in globular clusters: effects on jerks and jounces of millisecond pulsars

Federico Abbate
•
Mario Spera
•
Monica Colpi
2019
  • journal article

Periodico
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Abstract
Globular clusters may host intermediate mass black holes (IMBHs) at their centres. Here, we propose a new method for their identification using millisecond pulsars (MSPs) as probes. We show that measuring the first (jerk) and second (jounce) derivatives of the accelerations of an ensemble of MSPs will let us infer the presence of an IMBH in a globular cluster better than measuring the sole accelerations. We test this concept by simulating a set of star clusters with and without a central IMBH to extract the distributions of the stellar jerks and jounces. We then apply this technique to the ensemble ofMSPs in the Galactic globular cluster 47 Tucanae. Current timing observations are insufficient to constrain the presence of an IMBH and can only be used to pose upper limits on its mass. But, with few more years of observations it will be possible to test for the presence of a central IMBH with mass smaller than similar to 1000 M-circle dot. We conclude that jerks and jounces help significantly in reducing the upper limit of the mass of IMBHs in Galactic globular clusters.
DOI
10.1093/mnras/stz1330
WOS
WOS:000474907100058
Archivio
http://hdl.handle.net/20.500.11767/122364
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85074332980
https://arxiv.org/abs/1905.05209
Diritti
open access
Soggetti
  • black hole physics

  • pulsars: general

  • globular clusters: ge...

  • globular clusters: in...

  • Settore FIS/05 - Astr...

Scopus© citazioni
5
Data di acquisizione
Jun 7, 2022
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Web of Science© citazioni
7
Data di acquisizione
Mar 22, 2024
Visualizzazioni
3
Data di acquisizione
Apr 19, 2024
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