2020MNRAS.494.4687H

Query : 2020MNRAS.494.4687H

2020MNRAS.494.4687H - Mon. Not. R. Astron. Soc., 494, 4687-4694 (2020/June-1)

On the ejection of dark matter from globular clusters.

HURST T.J. and ZENTNER A.R.

Abstract (from CDS):

We investigate analytically whether in a close encounter with a star, a dark matter (DM) particle can be accelerated above the escape speed of a globular cluster and be ejected. We find that this mechanism is not sufficient to eject a massive, extended DM halo by this time. Combined with observations of isolated globular clusters that may not have had their haloes tidally stripped, these results cast doubt on the scenario in which globular clusters formed in DM haloes.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): globular clusters: general - dark matter

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 Bol 520 GlC 00 50 42.4580241563 +32 54 58.623459583     15.50     ~ 53 1
3 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 267 1
4 NAME E 1 GlC 03 55 02.5 -49 36 52           ~ 229 0
5 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
6 GCl 17 GlC 11 29 16.80 +28 58 25.0   14.4       ~ 379 1
7 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
8 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
9 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
10 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
11 NGC 6528 GlC 18 04 49.61 -30 03 20.8   12.12 10.65     ~ 561 0
12 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 307 1
13 NAME Local Group GrG ~ ~           ~ 9325 0

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