2024A&A...684L..24K

Query : 2024A&A...684L..24K

2024A&A...684L..24K - Astronomy and Astrophysics, volume 684L24 (2024/4-1)

Addition of the Local Volume sample of galaxies from the FAST HI survey.

KARACHENTSEV I.D., KARACHENTSEVA V.E., KAISIN S.S. and ZHANG C.-P.

Abstract (from CDS):

We report the discovery of 20 new dwarf galaxies in the Local Volume identified as optical counterparts to the Five-hundred-meter Aperture Spherical radio Telescope (FAST) All Sky HI Survey (FASHI) sources. The galaxies have a median stellar mass of 7.8 × 106M⊙ and a median HI mass of 1.0 × 107M⊙. Most of them are field galaxies, while three are probable members of the M 101 and M 106 groups. We also found seven FASHI radio sources to be probable dark HI clouds in nearby groups. Together with four other known HI clouds in the local groups, their mean-square radial velocity difference of 49 km s–1 with respect to the host galaxies yields an average total mass of (2.7 ± 1.0)×1011M⊙ for these groups on the projected scale of 90 kpc.

Abstract Copyright: © The Authors 2024

Journal keyword(s): surveys - galaxies: dwarf

Simbad objects: 24

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Number of rows : 24
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 Z 517-18 AG? 00 07 50.80 +35 57 58.6   15.6       ~ 16 0
2 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
3 HIJASS J1021+68 G 10 21 00.2 +68 42 00           ~ 26 0
4 Z 187-15 LSB 12 09 56.466 +36 26 03.34   15.5       ~ 44 0
5 LEDA 4320422 LSB 12 18 11.07 +46 55 00.7           ~ 26 1
6 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
7 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
8 NAME Coma I Group GrG 12 22 19.4 +29 53 47           ~ 112 0
9 MCG+09-20-182 G 12 26 52.727 +53 06 19.23   16       ~ 17 0
10 NGC 4490 GiG 12 30 34.5 +41 38 26 10.03 10.22 9.79     ~ 616 3
11 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
12 LEDA 4074723 G 12 40 29.915 +47 22 03.99           ~ 5 0
13 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
14 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
15 [MSB2017] dw1303+42 G? 13 03 14.0 +42 22 17           ~ 3 0
16 Z 217-18 LSB 13 12 51.779 +40 32 35.21   15.0       ~ 33 0
17 [MSB2017] dw1313+46 G? 13 13 02.0 +46 36 08           ~ 4 0
18 Z 189-50 AG? 13 17 04.866 +37 57 08.85   15.7       ~ 13 0
19 LEDA 2229803 AG? 13 27 52.946 +43 48 55.96           ~ 11 0
20 MCG+08-25-028 AG? 13 36 45.0509474688 +44 35 53.032953480   16       ~ 19 0
21 LEDA 4003791 AG? 13 42 20.051 +48 40 57.50           ~ 10 0
22 NAME GBT 1355+5439 G 13 54 50.6 +54 38 50           ~ 15 0
23 NAME M101 Group GrG 14 03 +54.3           ~ 112 1
24 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2

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