2023A&A...671A.141M

Query : 2023A&A...671A.141M

2023A&A...671A.141M - Astronomy and Astrophysics, volume 671A, 141 (2023/3-1)

Hidden depths in the local Universe: The Stellar Stream Legacy Survey.

MARTINEZ-DELGADO D., COOPER A.P., ROMAN J., PILLEPICH A., ERKAL D., PEARSON S., MOUSTAKAS J., LAPORTE C.F.P., LAINE S., AKHLAGHI M., LANG D., MAKAROV D., BORLAFF A.S., DONATIELLO G., PEARSON W.J., MIRO-CARRETERO J., CUILLANDRE J.-C., DOMINGUEZ H., ROCA-FABREGA S., FRENK C.S., SCHMIDT J., GOMEZ-FLECHOSO M.A., GUZMAN R., LIBESKIND N.I., DEY A., WEAVER B.A., SCHLEGEL D., MYERS A.D. and VALDES F.G.

Abstract (from CDS):

Context. Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-cold dark matter cosmology. These events are thought to provide important observational diagnostics of non-linear structure formation. Stellar streams in the Milky Way and Andromeda are spectacular evidence for ongoing satellite disruption. However, constructing a statistically meaningful sample of tidal streams beyond the Local Group has proven a daunting observational challenge, and the full potential for deepening our understanding of galaxy assembly using stellar streams has yet to be realised.
Aims. Here we introduce the Stellar Stream Legacy Survey, a systematic imaging survey of tidal features associated with dwarf galaxy accretion around a sample of ∼3100 nearby galaxies within z ∼ 0.02, including about 940 Milky Way analogues.
Methods. Our survey exploits public deep imaging data from the DESI Legacy Imaging Surveys, which reach surface brightness as faint as ∼29 mag arcsec–2 in the r band. As a proof of concept of our survey, we report the detection and broad-band photometry of 24 new stellar streams in the local Universe.
Results. We discuss how these observations can yield new constraints on galaxy formation theory through comparison to mock observations from cosmological galaxy simulations. These tests will probe the present-day mass assembly rate of galaxies, the stellar populations and orbits of satellites, the growth of stellar halos, and the resilience of stellar disks to satellite bombardment.

Abstract Copyright: © The Authors 2023

Journal keyword(s): galaxies: interactions - galaxies: dwarf - galaxies: formation - surveys

Simbad objects: 48

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Number of rows : 48
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 UGC 180 LIN 00 19 08.2355557680 +15 44 57.681921588   15.3       ~ 43 0
2 NGC 95 GiG 00 22 13.5409049904 +10 29 29.706437184   13.4       ~ 62 0
3 NGC 175 Sy2 00 37 21.5488991448 -19 56 03.358974336   12.95   11.73 12.4 ~ 101 0
4 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12666 1
5 ESO 474-26 Sy2 00 47 07.5377265072 -24 22 14.800438812   14.51 15.7 13.54   ~ 52 0
6 NGC 259 Sy2 00 48 03.281 -02 46 31.01   13.4   13.4 13.2 ~ 55 0
7 NGC 577 Sy2 01 30 40.7116170000 -01 59 39.719508828   14.3       ~ 38 0
8 ESO 413-20 GiG 01 40 39.0333852048 -31 49 15.062690100   14.05   13.28   ~ 19 0
9 NGC 655 Sy2 01 41 55.1181781296 -13 04 54.506410968   14   13.61   ~ 15 0
10 IC 160 EmG 01 46 29.5402651799 -13 14 51.520091687   14   13.39   ~ 21 0
11 NGC 681 Sy2 01 49 10.8143098656 -10 25 34.813193736   12.5   11.30 12.1 ~ 134 0
12 IC 169 ? 01 50.6 -12 41   11.73       ~ 2 0
13 IC 174 GiG 01 56 16.0822029144 +03 45 42.732568692   14.6       ~ 21 0
14 ESO 245-10 Sy2 01 56 44.4821784144 -43 58 21.683413452   14.32   13.02 13.9 ~ 45 0
15 NGC 788 Sy2 02 01 06.4628889816 -06 48 57.149808084   13.71 12.76 11.79   ~ 266 0
16 MCG-01-06-043 Sy2 02 05 48.6142190424 -05 17 37.832943768   14.76 13.95     ~ 27 0
17 NAME Sagittarius Stream St* 02 22 +00.0           ~ 877 0
18 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1746 1
19 NGC 1076 EmG 02 43 29.2360709472 -14 45 15.130509084   13.55   13.1 13.0 ~ 46 0
20 NGC 1309 GiG 03 22 06.5548977432 -15 23 59.791692912   12.08   12.5 11.7 ~ 222 0
21 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1670 0
22 NGC 2460 AGN 07 56 52.3308252792 +60 20 57.759748944   12.5       ~ 130 0
23 NVSS J075913+325454 rG 07 59 13.0699024344 +32 54 52.934088096   13.5       ~ 101 1
24 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4452 3
25 NGC 3131 LIN 10 08 36.3921892152 +18 13 52.493947536   14.0       ~ 45 0
26 NGC 3303 LIN 10 37 00.0631479552 +18 08 08.888744688   14.5       ~ 79 0
27 NGC 3451 H2G 10 54 20.859 +27 14 22.76   13.5       ~ 122 0
28 UGC 6397 AGN 11 23 02.051 +34 29 51.83   15.0       ~ 42 0
29 NGC 3689 rG 11 28 11.0180259864 +25 39 40.104503496   12.9       ~ 81 0
30 NGC 4385 AGN 12 25 42.8099950872 +00 34 21.278141652   14.63 14.12 13.1 12.8 ~ 273 0
31 NGC 4390 GiG 12 25 50.6659863456 +10 27 32.509985148   13.7       ~ 164 0
32 2MASX J12284541-0838329 GiG 12 28 45.3899848680 -08 38 32.673452388           ~ 10 0
33 NGC 4565 LIN 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 958 0
34 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1396 3
35 NGC 4981 GiG 13 08 48.7426150512 -06 46 38.957361240   12.1   10.91 11.7 ~ 166 0
36 NAME Cen A Group GrG 13 20 33.9 -44 58 51           ~ 263 0
37 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4332 4
38 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2579 2
39 UGC 8717 AG? 13 47 22.1625976848 +30 20 00.449651292   14.8       ~ 24 0
40 NGC 5492 AG? 14 10 35.2419874464 +19 36 44.128850220   13.7       ~ 49 0
41 NGC 5635 SyG 14 28 31.76167367 +27 24 32.2322942   13.9   12.12   ~ 127 1
42 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 552 3
43 Z 49-65 G 15 13 53.2541764824 +04 27 40.538376504   15.6       ~ 16 0
44 NGC 5971 LIN 15 35 36.9069269808 +56 27 42.085126440   14.9       ~ 48 0
45 NGC 7288 GiG 22 28 14.9557182408 -02 53 04.326493596   14.5       ~ 42 0
46 NAME Local Group GrG ~ ~           ~ 8409 0
47 NAME Monoceros Stream St* ~ ~           ~ 358 1
48 NAME Orphan Stream St* ~ ~           ~ 253 0

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