2017ApJ...851...22M

Query : 2017ApJ...851...22M

2017ApJ...851...22M - Astrophys. J., 851, 22-22 (2017/December-2)

The star-forming main sequence of dwarf low surface brightness galaxies.

McGAUGH S.S., SCHOMBERT J.M. and LELLI F.

Abstract (from CDS):

We explore the star-forming properties of late-type, low surface brightness (LSB) galaxies. The star-forming main sequence (SFR-M*) of LSB dwarfs has a steep slope, indistinguishable from unity (1.04 ± 0.06). They form a distinct sequence from more massive spirals, which exhibit a shallower slope. The break occurs around M*~1010 M☉, and can also be seen in the gas mass-stellar mass plane. The global Kennicutt-Schmidt law (SFR-Mg) has a slope of 1.47 ± 0.11 without the break seen in the main sequence. There is an ample supply of gas in LSB galaxies, which have gas depletion times well in excess of a Hubble time, and often tens of Hubble times. Only ∼3 % of this cold gas needs be in the form of molecular gas to sustain the observed star formation. In analogy with the faint, long-lived stars of the lower stellar main sequence, it may be appropriate to consider the main sequence of star-forming galaxies to be defined by thriving dwarfs (with M* 1010 M☉), while massive spirals (with M* 1010 M☉) are weary giants that constitute more of a turn-off population.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: dwarf - galaxies: evolution - galaxies: formation - galaxies: irregular - galaxies: spiral - galaxies: star formation - galaxies: star formation

Simbad objects: 58

goto Full paper

goto View the references in ADS

Number of rows : 58
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 LEDA 87237 LSB 00 12 48.255 +14 31 31.15   17.16       ~ 16 0
2 MCG+06-01-019 LSB 00 13 50.90 +35 59 39.0   16.5       ~ 105 1
3 UGC 159 LSB 00 17 16.1 +17 31 22           ~ 23 0
4 LEDA 87206 LSB 00 26 21.025 +24 38 35.10           ~ 12 0
5 LEDA 87153 LSB 01 19 47.37 +16 47 24.6   18.00       ~ 20 0
6 LEDA 87244 LSB 01 41 22.40 +17 29 49.0   17.86       ~ 8 0
7 LEDA 87143 LSB 02 01 20.9 +19 58 51           ~ 10 0
8 LEDA 8988 LSB 02 21 45.70 +16 28 14.0           ~ 10 0
9 LSB F415-3 LSB 02 32 45 +28 50.3           ~ 10 0
10 LEDA 87186 LSB 02 40 25.1 +10 56 53   18.15       ~ 4 0
11 LEDA 2832054 G 02 43 25.6 +16 44 00           ~ 12 0
12 ESDO 774-01 G 07 49 40 +06 36.6           ~ 5 0
13 Z 88-7 G 07 57 01.027 +14 23 47.66   16.0       ~ 161 0
14 AGC 180072 LSB 08 09 32.6 +22 33 34           ~ 49 0
15 SDSS J082216.88+223632.0 AG? 08 22 16.888 +22 36 32.04           ~ 8 0
16 LEDA 2806867 AG? 08 29 59.361 +25 29 10.26           ~ 16 0
17 LEDA 86664 LSB 08 36 50.50 +19 40 06.0           ~ 9 0
18 LEDA 86665 LSB 08 46 37.90 +18 53 23.7   17.21       ~ 51 0
19 LSB F563-1 LSB 08 55 01.4 +19 45 06           ~ 73 0
20 LEDA 2806894 G 08 56 08.0 +17 15 34           ~ 6 0
21 Z 91-25 AG? 09 13 22.30 +19 22 09.0   15.5       ~ 30 0
22 VLSB F565-V01 LSB 09 19 28.2 +21 33 57   16.95       ~ 9 0
23 UGC 5005 LSB 09 24 29.39972 +22 16 29.0213   18       ~ 81 0
24 LEDA 86670 LSB 09 37 36.6 +21 46 15           ~ 53 0
25 LEDA 2806966 G 10 01 42.0 +17 41 25           ~ 5 0
26 LEDA 2806869 AG? 10 05 58.644 +23 51 50.57           ~ 19 0
27 NAME Leo P BiC 10 21 45.123 +18 05 16.89           ~ 268 0
28 LEDA 86619 G 10 26 06.360 +22 26 00.96           ~ 75 0
29 SDSS J104455.47+205203.4 AG? 10 44 55.473 +20 52 03.45           ~ 9 0
30 LEDA 86672 LSB 10 45 02.064 +22 03 15.54           ~ 91 0
31 LEDA 2806917 G 11 22 16.5 +20 52 32           ~ 7 0
32 LEDA 86673 GiC 11 22 59.312 +17 28 26.55   17.72       ~ 17 0
33 LEDA 2806928 LSB 11 48 16.335 +18 38 33.10           ~ 20 0
34 CAIRNS J115436.18+174000.3 GiC 11 54 36.18 +17 40 00.3           ~ 5 0
35 LSB F574-1 LSB 12 38 13.3 +22 17 59           ~ 65 0
36 LSB F574-2 LSB 12 46 47.3 +21 48 12           ~ 27 0
37 UGC 8011 GiC 12 52 21.026 +21 37 46.00   18       ~ 41 0
38 LEDA 43739 LSB 12 52 59.079 +14 24 01.87   16.91       ~ 30 0
39 LEDA 166148 BiC 12 53 11.668 +12 38 03.86           ~ 24 0
40 NGC 4789A GiC 12 54 05.248 +27 08 58.67 14.37 14.23 13.95 13.84   ~ 614 1
41 UGC 8061 LSB 12 56 43.700 +11 55 52.93   16.5       ~ 50 0
42 LEDA 166150 AG? 12 58 35.964 +17 48 46.87           ~ 21 0
43 Z 71-87 H2G 12 58 40.1930636208 +14 13 00.739589628 15.24 15.16 14.98 14.81   ~ 475 0
44 Z 245-36 AG? 13 14 27.997 +45 55 11.14 13.63 13.26 13.02 12.81   ~ 297 0
45 LEDA 86676 LSB 13 50 10.08448 +18 16 07.6585           ~ 26 0
46 LEDA 87297 LSB 14 32 31.230 +11 33 09.34   17.04       ~ 18 0
47 VLSB F579-V01 LSB 14 32 48.1 +22 45 58           ~ 42 0
48 LEDA 87128 LSB 14 33 20.315 +26 59 52.94   14.65       ~ 41 0
49 Z 75-90 LSB 14 36 40.943 +11 34 36.77   15.6       ~ 27 0
50 LEDA 2807032 G 14 45 22.2 +07 50 18           ~ 6 0
51 LEDA 87175 LSB 14 46 24.787 +14 12 38.59   16.42       ~ 26 0
52 LEDA 2801024 LSB 15 37 00.409 +20 47 50.12           ~ 11 0
53 UGC 10281 LSB 16 13 20.346 +17 11 35.88   18       ~ 43 0
54 LEDA 87138 LSB 22 28 06.8 +23 22 31           ~ 14 0
55 LEDA 87272 LSB 23 12 11.2 +17 34 53           ~ 5 0
56 LEDA 87202 LSB 23 40 09.39 +07 18 37.0   17.6       ~ 8 0
57 AGC 332123 LSB 23 54 19.392 +10 56 48.01           ~ 10 0
58 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2017ApJ...851...22M and select 'bookmark this link' or equivalent in the popup menu