2017MNRAS.464..329Y


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST05:49:54

2017MNRAS.464..329Y - Mon. Not. R. Astron. Soc., 464, 329-355 (2017/January-1)

Star formation associated with neutral hydrogen in the outskirts of early-type galaxies.

YILDIZ M.K., SERRA P., PELETIER R.F., OOSTERLOO T.A. and DUC P.-A.

Abstract (from CDS):

About 20 per cent of all nearby early-type galaxies (M* >= 6 x 109 M) outside the Virgo cluster are surrounded by a disc or ring of low-column-density neutral hydrogen (H I) gas with typical radii of tens of kpc, much larger than the stellar body. In order to understand the impact of these gas reservoirs on the host galaxies, we analyse the distribution of star formation out to large radii as a function of H I properties using GALEX UV and SDSS optical images. Our sample consists of 18 H I-rich galaxies as well as 55 control galaxies where no H I has been detected. In half of the H I-rich galaxies, the radial UV profile changes slope at the position of the H I radial profile peak. To study the stellar populations, we calculate the FUV-NUV and UV-optical colours in two apertures, 1-3 and 3-10 Reff. We find that H I-rich galaxies are on average 0.5 and 0.8 mag bluer than the H I-poor ones, respectively. This indicates that a significant fraction of the UV emission traces recent star formation and is associated with the H I gas. Using FUV emission as a proxy for star formation, we estimate the integrated star formation rate in the outer regions (R > 1Reff) to be on average ∼6 x 10–3 M yr–1 for the H I-rich galaxies. This rate is too low to build a substantial stellar disc and, therefore, change the morphology of the host. We find that the star formation efficiency and the gas depletion time are similar to those at the outskirts of spirals.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: ISM - galaxies: statistics - galaxies: stellar content - galaxies: stellar content

Simbad objects: 83

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Number of rows : 83

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 404 LIN 01 09 27.1 +35 43 05   12.56 11.73     ~ 412 0
2 NGC 661 GiG 01 44 14.5986547790 +28 42 21.153100307   13.0       ~ 95 0
3 NGC 770 GiP 01 59 13.6425980241 +18 57 16.721067524   13.91 13.49     ~ 95 1
4 NGC 821 G 02 08 21.150 +10 59 41.53   12.210 11.310 10.739 9.744 ~ 537 0
5 UGC 3960 G 07 40 22.7455422644 +23 16 29.954549364   15.0       ~ 50 0
6 NGC 2549 G 08 18 58.3495954248 +57 48 11.017861378   12.1       ~ 229 0
7 NGC 2577 GiP 08 22 43.4499824492 +22 33 11.140845735   13.8       ~ 102 0
8 NGC 2592 G 08 27 08.0513672756 +25 58 13.126845025   13.6       ~ 94 0
9 NGC 2594 G 08 27 17.1602563393 +25 52 43.709616875   15.0       ~ 42 0
10 UGC 4551 G 08 44 05.900 +49 47 38.29 13.87 13.40 12.46     ~ 79 1
11 NGC 2679 GiP 08 51 32.9415764823 +30 51 55.204558946   14.3       ~ 59 0
12 NGC 2685 Sy2 08 55 34.7056265191 +58 44 03.877798862   13.68 12.70     ~ 406 1
13 NGC 2764 GiG 09 08 17.5019762535 +21 26 36.009522270   13.9       ~ 103 0
14 NGC 2852 GiP 09 23 14.6014858130 +40 09 49.746623264   14.0       ~ 59 0
15 NGC 2859 G 09 24 18.549 +34 30 48.16   11.8       ~ 236 0
16 NGC 2950 G 09 42 35.116 +58 51 04.39   11.8       ~ 187 0
17 NGC 3098 GiG 10 02 16.6962227999 +24 42 39.929851567   13.00       ~ 124 0
18 NGC 3230 LSB 10 23 43.942 +12 34 04.38   14.9       ~ 50 0
19 NGC 3245 GiP 10 27 18.3853542210 +28 30 26.626222848   11.6       ~ 311 0
20 NGC 3248 GiG 10 27 45.4388330114 +22 50 49.819461432   13.9       ~ 67 0
21 NGC 3301 GiG 10 36 56.030 +21 52 55.80   12.2       ~ 126 0
22 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 729 1
23 NGC 3400 GiG 10 50 45.502 +28 28 08.14   14.3       ~ 47 0
24 NGC 3414 GiP 10 51 16.242 +27 58 29.88   12.1       ~ 295 0
25 NGC 3458 GiG 10 56 01.4792363060 +57 07 01.100122110   13.20       ~ 96 1
26 NGC 3522 GiG 11 06 40.4634151666 +20 05 07.901375486   14.13       ~ 93 1
27 Mrk 1282 GiC 11 07 24.661 +21 39 25.87   14.8       ~ 58 0
28 NGC 3595 GiG 11 15 25.5492403964 +47 26 49.400333146   13.0       ~ 59 0
29 NGC 3605 GiG 11 16 46.622 +18 01 01.71   12.7       ~ 243 0
30 NGC 3610 GiG 11 18 25.276 +58 47 10.49   11.4       ~ 282 0
31 NGC 3613 GiG 11 18 36.130 +57 59 59.73   11.6       ~ 189 0
32 NGC 3619 GiG 11 19 21.621 +57 45 27.66   12.6       ~ 149 0
33 NGC 3626 GiG 11 20 03.794 +18 21 24.45   11.2       ~ 223 0
34 NGC 3648 GiG 11 22 31.5071228129 +39 52 36.781720177   13.57 12.64     ~ 65 0
35 NGC 3658 GiG 11 23 58.2658709481 +38 33 44.352704118   13.3       ~ 66 0
36 NGC 3665 rG 11 24 43.630 +38 45 46.05 13.71 13.26 11.62     ~ 297 1
37 NGC 3674 GiG 11 26 26.6127569213 +57 02 54.068612346   13.1       ~ 64 0
38 NGC 3757 GiG 11 37 02.8638642218 +58 24 55.851444793   13.5       ~ 68 0
39 NGC 3796 GiG 11 40 31.1241890828 +60 17 55.999850225   13.4       ~ 57 0
40 NGC 3838 GiP 11 44 13.7652363325 +57 56 53.538967194   12.7       ~ 75 0
41 NGC 3941 Sy2 11 52 55.360 +36 59 10.96   11.45 11.62 9.97   ~ 223 0
42 NGC 3945 GiG 11 53 13.726 +60 40 32.02   11.6       ~ 220 0
43 NGC 3998 SyG 11 57 56.1333561013 +55 27 12.925850484   11.64 12.10 10.09   ~ 574 2
44 NGC 4036 LIN 12 01 26.891 +61 53 44.52   12.18 11.20     ~ 233 0
45 NGC 4078 GiG 12 04 47.629 +10 35 43.93   13.9       ~ 66 0
46 NGC 4143 LIN 12 09 36.086 +42 32 03.18   13.04 12.08     ~ 211 0
47 NGC 4203 LIN 12 15 05.0543630359 +33 11 50.401356393   12.98 11.99     ~ 453 2
48 NGC 4262 GiG 12 19 30.582 +14 52 39.78 13.00 12.49 11.55     ~ 330 1
49 NGC 4267 GiG 12 19 45.2726273070 +12 47 53.701823615   12.4       ~ 223 0
50 NGC 4278 LIN 12 20 06.82563 +29 16 50.7124 11.54 11.09 10.16     ~ 887 2
51 NGC 4283 GiG 12 20 20.7698972563 +29 18 39.156951946 13.47 13.00 12.07     ~ 185 1
52 NGC 4346 GiG 12 23 27.942 +46 59 37.97   12.3       ~ 103 0
53 NGC 4340 GiP 12 23 35.2775321007 +16 43 20.446578725   12.4       ~ 259 0
54 NGC 4377 GiG 12 25 12.308 +14 45 43.98   12.5       ~ 202 0
55 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5824 0
56 NGC 4503 GiP 12 32 06.193 +11 10 35.16 12.66 12.05 11.07     ~ 201 1
57 2MASX J12365934+1419494 LSB 12 36 59.3469733716 +14 19 49.158501218   17.80       ~ 173 0
58 IC 3631 G 12 39 48.0175268218 +12 58 26.299863526   14.5       ~ 78 0
59 NGC 4762 LIN 12 52 56.049 +11 13 50.88   11.1       ~ 336 0
60 MCG+02-33-038 G 12 58 18.746 +13 23 29.07   14.9       ~ 39 0
61 ESO 381-47 G 13 01 05.3860924408 -35 36 59.524259331   14.02   12.77 13.1 ~ 39 0
62 NGC 5103 GiG 13 20 30.055 +43 05 02.45   13.6       ~ 86 0
63 NGC 5173 GiP 13 28 25.2817718603 +46 35 29.896777764   13.10       ~ 130 1
64 NGC 5273 Sy1 13 42 08.386 +35 39 15.26   14.01 13.12     ~ 402 0
65 NGC 5308 GiP 13 47 00.4356033187 +60 58 23.332964486   12.5       ~ 190 0
66 NGC 5322 SyG 13 49 15.24 +60 11 25.8   11.3       ~ 381 2
67 NGC 5342 GiG 13 51 25.898 +59 51 46.85   14.4       ~ 55 0
68 NGC 5379 GiP 13 55 34.347 +59 44 34.17   14.1       ~ 81 0
69 UGC 8876 GiG 13 56 58.0617509191 +45 58 23.646956737   14.3       ~ 49 0
70 NGC 5475 GiG 14 05 12.4048669713 +55 44 30.678096772   13.4       ~ 86 0
71 NGC 5485 LIN 14 07 11.312 +55 00 05.47 14.34 13.82 12.22     ~ 221 0
72 2MASX J14073925+5447404 GiG 14 07 39.2776060347 +54 47 40.636399458   14.7       ~ 38 0
73 NGC 5500 GiG 14 10 15.2321559638 +48 32 46.001247792   14.5       ~ 56 0
74 NGC 5582 GiP 14 20 43.1106631246 +39 41 36.923154964   13.0       ~ 100 0
75 NGC 5611 G 14 24 04.7751152470 +33 02 50.694563824   13.5       ~ 73 0
76 NGC 5631 Sy2 14 26 33.2891048599 +56 34 57.428383519   13.51 12.55     ~ 160 0
77 MCG+08-26-036 GiG 14 29 14.4629231817 +44 41 56.448430474   15.2       ~ 36 0
78 UGC 9519 G 14 46 21.127 +34 22 14.34   14.4       ~ 78 0
79 NGC 6149 LIN 16 27 24.2331617484 +19 35 49.884653151   14.8       ~ 49 0
80 NGC 6547 G 18 05 10.020 +25 13 57.52   14.3       ~ 37 0
81 NGC 6548 GiP 18 05 59.2434903727 +18 35 14.238259734   13.1       ~ 68 0
82 NGC 6798 G 19 24 03.1639843152 +53 37 29.409063423   14.5       ~ 52 0
83 NGC 7457 G 23 00 59.9274269967 +30 08 41.794468187   11.04 11.87     ~ 408 0

    Equat.    Gal    SGal    Ecl

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2020.07.05-05:49:54

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