Erratum: Evidence for an intermediate-mass black hole in the globular cluster NGC 6624

B. B. P. Perera (1) , B. W. Stappers (1) , A. G. Lyne (1) , C. G. Bassa (2) , Ismaël Cognard (3, 4) , Lucas Guillemot (3, 4) , M. Kramer (5) , Gilles Theureau (3, 4) , G. Desvignes (5)

1 JBCA - Jodrell Bank Centre for Astrophysics
2 ASTRON - Netherlands Institute for Radio Astronomy
3 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
4 USN - Unité Scientifique de la Station de Nançay
5 MPIFR - Max-Planck-Institut für Radioastronomie

The paper ‘Evidence for an intermediate-mass black hole in the globular cluster NGC 6624’ was published in MNRAS, 468, 2114 (2017). When estimating the model-dependent minimum mass of the intermediate-mass black hole (IMBH) of 60 000 M⊙ in Section 5, we used the separation of 0.15 pc for PSR J1823−3021C from the globular cluster centre, as given in Peuten et al. (2014, see table 2 therein). Unfortunately, this value is incorrect and the correct separation is 0.34 pc based on the position given in Table 1 (also see Lynch et al. 2012). This correct distance measurement changes the result presented in Fig. 9 in the published version, and the modified figure based on the positions given in Table 1 is appended here. Note that this does not affect any other results presented in the paper, in particular, the IMBH mass estimation obtained through orbital dynamics given in Section 4.

Keywords: black hole physics; globular clusters: individual: NGC 6624; pulsars: individual: PSR B1820–30A; stars: neutron

Domains: Galactic Astrophysics [astro-ph.GA]

B. B. P. Perera, B. W. Stappers, A. G. Lyne, C. G. Bassa, Ismaël Cognard, et al.. Erratum: Evidence for an intermediate-mass black hole in the globular cluster NGC 6624. Monthly Notices of the Royal Astronomical Society, 2017, 471 (1), pp.1258. ⟨10.1093/mnras/stx1236⟩. ⟨insu-01624672⟩