2022ApJ...932...44G

Query : 2022ApJ...932...44G

2022ApJ...932...44G - Astrophys. J., 932, 44-44 (2022/June-2)

Stellar Halos from the The Dragonfly Edge-on Galaxies Survey.

GILHULY C., MERRITT A., ABRAHAM R., DANIELI S., LOKHORST D., LIU Q., VAN DOKKUM P., CONROY C. and GRECO J.

Abstract (from CDS):

We present the primary results from the Dragonfly Edge-on Galaxies Survey, an exploration of the stellar halos of twelve nearby (d < 25 Mpc) edge-on disk galaxies with the Dragonfly Telephoto Array. The edge-on orientation of these galaxies allows their stellar halos to be explored with minimal obscuration by or confusion with the much brighter disk light. Galaxies in the sample span a range of stellar masses from 109.68 to 1010.88M☉. We confirm that the wide range of stellar halo mass fractions previously seen for Milky Way-mass galaxies is also found among less massive spiral galaxies. The scatter in stellar halo mass fraction is large, but we do find a significant positive correlation between stellar halo mass fraction and total stellar mass when the former is measured beyond five half-mass radii. Reasonably good agreement is found with predictions from cosmological hydrodynamical simulations, although observed stellar halo fractions appear to be somewhat lower than expected from these simulations.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxy structure - Galaxy stellar halos - Spiral galaxies - Galaxy photometry

Simbad objects: 44

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Number of rows : 44
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 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 NGC 1042 SyG 02 40 23.9724818544 -08 26 00.736256616 11.47 11.56 11.02 11.7 11.4 ~ 286 1
5 NGC 1084 EmG 02 45 59.926 -07 34 43.10 11.22 11.59 10.73 10.55 11.1 ~ 386 2
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
7 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
8 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
9 NGC 3044 AG? 09 53 40.884 +01 34 46.74   12.7   12.7 12.3 ~ 239 1
10 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
11 M 96 GiP 10 46 45.744 +11 49 11.78 10.42 10.15 9.25 8.99   ~ 862 1
12 SDSS J105128.87+363945.2 G 10 51 28.8764431296 +36 39 45.265323492           ~ 3 0
13 LEDA 2083781 G 10 51 41.3063022648 +36 36 53.396244396           ~ 5 0
14 MCG+06-24-027 AG? 10 52 16.7441632824 +36 35 40.255197540   17       ~ 31 0
15 NGC 3432 AG? 10 52 31.132 +36 37 07.60   11.81 11.67 11.29   ~ 321 1
16 NGC 3501 GiP 11 02 47.307 +17 59 22.31   13.8       ~ 152 0
17 NGC 3507 AGN 11 03 25.3619733360 +18 08 07.607343732   11.4       ~ 211 0
18 NGC 3551 BiC 11 09 44.4516794880 +21 45 32.140238112   14.8       ~ 64 1
19 M 65 GiP 11 18 55.9084654776 +13 05 32.300703672   9.6       ~ 458 1
20 NAME Leo Triplet IG 11 19 +13.2           ~ 132 1
21 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
22 NGC 3628 LIN 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 853 3
23 XCLASS 2051 ClG 11 58 24.73 +44 05 32.2           ~ 13 0
24 NGC 4013 GiG 11 58 31.417 +43 56 49.28   12.4       ~ 447 1
25 NGC 4010 G 11 58 37.991 +47 15 40.72   13.1       ~ 164 0
26 NSCS J115847+440712 ClG 11 58 47.24 +44 07 11.3           ~ 1 0
27 XCLASS 1233 ClG 11 58 50.55 +44 05 34.9           ~ 5 0
28 NGC 4220 G 12 16 11.7271475400 +47 53 00.116701188   12.4       ~ 166 0
29 NGC 4244 GiG 12 17 29.659 +37 48 25.60   10.71   9.99   ~ 582 1
30 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
31 NGC 4307 GiG 12 22 05.625 +09 02 36.79   13.4       ~ 176 0
32 NGC 4307A AG? 12 22 07.3160912184 +08 59 26.033231868   15.5       ~ 35 0
33 NGC 4330 GiG 12 23 17.249 +11 22 04.73   14.0       ~ 246 0
34 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
35 NGC 4437 AGN 12 32 45.586 +00 06 54.14   11.1   11.1 10.6 ~ 307 0
36 NGC 4507 Sy2 12 35 36.6338976888 -39 54 33.710416272   12.95 13.54 11.70 12.4 ~ 532 1
37 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
38 NGC 4633 GiP 12 42 37.3727566944 +14 21 25.949234160   14.7       ~ 147 0
39 NGC 4634 GiG 12 42 40.986 +14 17 45.15   13.6       ~ 189 0
40 NGC 4676 IG 12 46 10.18 +30 43 53.7   14.1       ~ 318 0
41 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
42 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 807 0
43 NAME Local Group GrG ~ ~           ~ 9325 0
44 NAME Gaia Enceladus-Sausage St* ~ ~           ~ 860 0

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