2024A&A...688A.147F

Query : 2024A&A...688A.147F

2024A&A...688A.147F - Astronomy and Astrophysics, volume 688A147 (2024/8-1)

A determination of the Large Magellanic Cloud dark matter subhalo mass using the Milky Way halo stars in its gravitational wake.

FUSHIMI K.J., MOSQUERA M.E. and DOMINGUEZ M.

Abstract (from CDS):

Aims. Our goal is to study the gravitational effects caused by the passage of the Large Magellanic Cloud (LMC) in its orbit on the stellar halo of the Milky Way.
Methods. We employed Gaia Data Release 3 to construct a halo tracers dataset consisting of K-giant stars and RR-Lyrae variables. Additionally, we compared the data with a theoretical model to estimate the dark matter subhalo mass.
Results. We have improved the characterisation of the local wake and the collective response due to the LMC's orbit. We have also estimated for the first time the dark subhalo mass of the LMC to be of the order of 1.7 × 1011 M⊙, which is comparable to previously reported values in the literature.

Abstract Copyright: © The Authors 2024

Journal keyword(s): Galaxy: halo - galaxies: kinematics and dynamics - Magellanic Clouds - dark matter

Simbad objects: 20

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Number of rows : 20
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 NAME Sagittarius Stream St* 02 22 +00.0           ~ 1001 0
4 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
7 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
8 NGC 5694 GlC 14 39 36.52 -26 32 18.0           ~ 323 0
9 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 397 0
10 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
11 NAME Sequoia Cluster GlC 17 31 12.0 -39 48 30           ~ 154 0
12 NGC 7006 GlC 21 01 29.465 +16 11 16.49     10.46     ~ 562 0
13 NAME Pisces Overdensity G 23 19.0 +00 00           ~ 65 0
14 NAME Magellanic Stellar Stream St* ~ ~           ~ 9 0
15 NAME Typhon Stream St* ~ ~           ~ 7 0
16 NAME Virgo Overdensity reg ~ ~           ~ 53 0
17 NAME Local Group GrG ~ ~           ~ 9325 0
18 NAME Helmi Stream St* ~ ~           ~ 144 0
19 NAME Gaia Enceladus-Sausage St* ~ ~           ~ 860 0
20 [LRK2022] 64 MGr ~ ~           ~ 10 0

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