2020A&A...643A.147D

Query : 2020A&A...643A.147D

2020A&A...643A.147D - Astronomy and Astrophysics, volume 643A147-147 (2020/11-1)

MeerKAT HI commissioning observations of MHONGOOSE galaxy ESO 302-G014.

DE BLOK W.J.G., ATHANASSOULA E., BOSMA A., COMBES F., ENGLISH J., HEALD G.H., KAMPHUIS P., KORIBALSKI B.S., MEURER G.R., ROMAN J., SARDONE A., VERDES-MONTENEGRO L., BIGIEL F., BRINKS E., CHEMIN L., FRATERNALI F., JARRETT T., KLEINER D., MACCAGNI F.M., PISANO D.J., SERRA P., SPEKKENS K., AMRAM P., CARIGNAN C., DETTMAR R.-J., GIBSON B.K., HOLWERDA B.W., JOZSA G.I.G., LUCERO D.M., OOSTERLOO T.A., RAMAILA A.J.T., RAMATSOKU M., SHETH K., WALTER F., WONG O.I., ZIJLSTRA A.A., BLOEMEN S., GROOT P.J., LE POOLE R., KLEIN-WOLT M., KORDING E.G., McBRIDE V.A., PATERSON K., PIETERSE D.L.A., VREESWIJK P. and WOUDT P.A.

Abstract (from CDS):


Aims. We present the results of three commissioning HI observations obtained with the MeerKAT radio telescope. These observations make up part of the preparation for the forthcoming MHONGOOSE nearby galaxy survey, which is a MeerKAT large survey project that will study the accretion of gas in galaxies and the link between gas and star formation.
Methods. We used the available HI data sets, along with ancillary data at other wavelengths, to study the morphology of the MHONGOOSE sample galaxy, ESO 302-G014, which is a nearby gas-rich dwarf galaxy.
Results. We find that ESO 302-G014 has a lopsided, asymmetric outer disc with a low column density.In addition, we find a tail or filament of HI clouds extending away from the galaxy, as well as an isolated HI cloud some 20 kpc to the south of the galaxy. We suggest that these features indicate a minor interaction with a low-mass galaxy. Optical imaging shows a possible dwarf galaxy near the tail, but based on the current data, we cannot confirm any association with ESO 302-G014. Nonetheless, an interaction scenario with some kind of low-mass companion is still supported by the presence of a significant amount of molecular gas, which is almost equal to the stellar mass, and a number of prominent stellar clusters, which suggest recently triggered star formation.
Conclusions. These data show that MeerKAT produces exquisite imaging data. The forthcoming full-depth survey observations of ESO 302-G014 and other sample galaxies will, therefore, offer insights into the fate of neutral gas as it moves from the intergalactic medium onto galaxies.

Abstract Copyright: © ESO 2020

Journal keyword(s): galaxies: clusters: individual: ESO 302-G014 - galaxies: dwarf - galaxies: ISM - radio lines: galaxies

Simbad objects: 51

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Number of rows : 51
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 ESO 349-31 AG? 00 08 13.1536 -34 34 47.836   15.54   14.99   ~ 156 3
2 ESO 473-24 AG? 00 31 22.51 -22 45 57.5   16.11   15.87 17.7 ~ 62 1
3 MCG-04-03-019 G 00 49 49.3 -21 00 58 16.11 15.64 15.36 14.8 15.5 ~ 144 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 NGC 289 Sy2 00 52 42.365 -31 12 20.99   11.36 13.44 10.38 11.4 ~ 256 0
6 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
7 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 526 0
8 NGC 625 AGN 01 35 04.632 -41 26 10.32 12.37 11.78 11.25 11.03 11.5 ~ 312 2
9 Z 482-59 AG? 02 03 20.32 +22 02 28.8   15.00       ~ 61 0
10 MCG-07-07-007 LSB 03 09 38.398 -41 01 54.23   13.12   12.10 12.8 ~ 78 0
11 ESO 300-16 AG? 03 10 10.48 -40 00 10.5   15.56   14.95   ~ 32 0
12 NGC 1311 Sy2 03 20 06.946 -52 11 07.76 13.89 13.35 12.93 12.75 13.1 ~ 136 0
13 IC 1954 GiG 03 31 31.393 -51 54 17.54   12.14   11.15 11.8 ~ 149 0
14 NGC 1367 EmG 03 35 01.3451198496 -24 55 59.504904516   11.48   9.98 11.1 ~ 209 0
15 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
16 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
17 MCG-07-08-008 EmG 03 47 34.12 -38 34 35.5   14.34   13.87 14.5 ~ 61 0
18 ESO 302-14 GiG 03 51 40.90 -38 27 08.0   14.84   14.54 14.8 ~ 60 0
19 SN 2008jb SN* 03 51 44.66 -38 27 00.1           SNII 16 1
20 QSO B0405-385 Bla 04 06 59.03533781 -38 26 28.0423651   19.55 18.0     ~ 250 2
21 ICRF J040820.3-654509 Sy2 04 08 20.37884 -65 45 09.0806     18.0     ~ 207 1
22 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
23 NAME NGC 1566 Group GrG 04 20 00.6 -54 56 17           ~ 180 0
24 NGC 1592 GiP 04 29 40.8436558272 -27 24 31.344240564 13.42 13.94 14.09 13.46 13.12 ~ 62 0
25 QSO B0438-43 Bla 04 40 17.17997576 -43 33 08.6043290   19.31 19.5 18.2   ~ 302 2
26 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 461 2
27 QSO B0451-281 Bla 04 53 14.64679973 -28 07 37.3269982   18.23 18.2 17.83   ~ 223 1
28 NGC 1705 Sy2 04 54 13.4661493464 -53 21 39.471592428 12.32 12.96 12.56 12.58 12.9 ~ 692 1
29 NGC 1744 LSB 04 59 57.7383643080 -26 01 19.840639764 12.43 11.90 11.41 11.20 11.7 ~ 159 0
30 MCG-06-12-012 AG? 05 16 38.800 -37 06 09.07   13.05   11.78 12.5 ~ 91 0
31 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
32 NGC 2101 AG? 05 46 24.17 -52 05 18.7   13.68   12.70 14.0 ~ 67 0
33 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 812 2
34 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 434 0
35 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
36 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
37 NGC 3511 EmG 11 03 23.8201544712 -23 05 12.133861188   11.66   10.53 11.1 ~ 182 0
38 NGC 3513 EmG 11 03 46.080 -23 14 43.73   12.16   11.11   ~ 131 0
39 LEDA 3097702 AG? 11 06 11.6526 -14 24 21.213   15.8       ~ 19 0
40 MCG-05-28-015 EmG 11 53 24.064 -28 33 11.39   13.19   12.11 12.5 ~ 74 0
41 MCG-02-33-047 GiG 12 53 56.5587 -12 06 19.455   14.0   14.2 14.1 ~ 59 0
42 NGC 4781 Sy2 12 54 23.7751070304 -10 32 13.803431280   11.8   11.28 11.7 ~ 167 1
43 MCG-03-33-030 GiP 13 03 16.736 -17 25 22.91 13.98 13.42 13.09 12.96 13.3 ~ 135 0
44 NGC 5068 AG? 13 18 54.807 -21 02 20.76 11.24 10.53 10.01 9.78 10.1 ~ 354 0
45 LEDA 166163 G 13 21 08.5 -31 31 50   17.4       ~ 59 0
46 ESO 444-84 GiC 13 37 19.99 -28 02 42.0 16.04 15.34 15.05 15.05 14.9 ~ 133 1
47 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2
48 IC 4951 EmG 20 09 31.77 -61 51 01.7 14.74 14.23 13.84 13.68 14.0 ~ 73 0
49 NGC 7424 EmG 22 57 18.3924511080 -41 04 14.124670032   10.88 10.38 10.02 10.9 ~ 236 0
50 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2
51 NAME Local Group GrG ~ ~           ~ 9325 0

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