2019ApJ...873...34N

Query : 2019ApJ...873...34N

2019ApJ...873...34N - Astrophys. J., 873, 34-34 (2019/March-1)

Modeling the connection between subhalos and satellites in Milky Way-like systems.

NADLER E.O., MAO Y.-Y., GREEN G.M. and WECHSLER R.H.

Abstract (from CDS):

We develop a comprehensive and flexible model for the connection between satellite galaxies and dark matter subhalos in dark matter-only zoom-in simulations of Milky Way (MW)-mass host halos. We systematically identify the physical and numerical uncertainties in the galaxy-halo connection and simulations underlying our method, including (i) the influence of host halo properties; (ii) the relationship between satellite luminosities and subhalo properties, including the effects of reionization; (iii) the relationship between satellite and subhalo locations; (iv) the relationship between satellite sizes and subhalo properties, including the effects of tidal stripping; (v) satellite and subhalo disruption due to baryonic effects; and (vi) artificial subhalo disruption and orphan satellites. To illustrate our approach, we fit this model to the luminosity distribution of both classical MW satellites and those discovered in the Sloan Digital Sky Survey by performing realistic mock observations that depend on the luminosity, size, and distance of our predicted satellites, and we infer the total satellite population that will be probed by upcoming surveys. We argue that galaxy size and surface brightness modeling will play a key role in interpreting current and future observations, as the expected number of observable satellites depends sensitively on their surface brightness distribution.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: abundances - galaxies: halos - Local Group - methods: numerical

Simbad objects: 33

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Number of rows : 33
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
4 NAME Pisces I G 01 03 55.0 +21 53 06   16.18 14.3     ~ 404 0
5 NAME Cetus III Dwarf Galaxy LSB 02 05 19.40 -04 16 12.0           ~ 32 0
6 NAME Segue 2 G 02 19 16.0 +20 10 31     15.2     ~ 299 0
7 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
8 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
9 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
10 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
11 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 410 0
12 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 434 0
13 NAME Segue 1 G 10 07 03.2 +16 04 25     15.3     ~ 517 1
14 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
15 NAME Sextans dSph LSB 10 13 02.9 -01 36 53   12 10.4     ~ 921 0
16 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 355 1
17 NAME Willman 1 G 10 49 21.0 +51 03 00     15.2     ~ 345 0
18 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
19 NAME Leo V LSB 11 31 09.60 +02 13 12.0     16.0     ~ 234 0
20 NAME Leo IV LSB 11 32 57.0 -00 32 00     15.1     ~ 419 1
21 NAME Vir I Dwarf Galaxy LSB 12 00 09.6 -00 40 48           ~ 40 0
22 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 482 1
23 NAME CVn II dSph G 12 57 09.6 +34 19 12     16.1     ~ 287 2
24 NAME CVn I dSph G 13 28 03.5 +33 33 21     13.1     ~ 352 1
25 NAME Bootes II G 13 58 00.0 +12 51 00     15.4     ~ 269 0
26 NAME Bootes Dwarf Spheroidal Galaxy G 14 00 00.0 +14 30 00     12.8     ~ 491 0
27 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
28 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 379 1
29 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
30 NAME Sgr I Window reg 17 56 -29.0           ~ 71 0
31 NAME Pegasus III LSB 22 24 22.6 +05 25 12           ~ 69 0
32 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 283 0
33 NAME Local Group GrG ~ ~           ~ 9325 0

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