2018MNRAS.478.3386E

Query : 2018MNRAS.478.3386E

2018MNRAS.478.3386E - Mon. Not. R. Astron. Soc., 478, 3386-3409 (2018/August-2)

Star formation complexes in the 'galaxy-sized' supergiant shell of the galaxy HolmbergI.

EGOROV O.V., LOZINSKAYA T.A., MOISEEV A.V. and SMIRNOV-PINCHUKOV G.V.

Abstract (from CDS):

We present the results of observations of the galaxy Holmberg I carried out at the Russian 6-m telescope in the narrow-band imaging, long-slit spectroscopy, and scanning Fabry-Perot interferometer modes. A detailed analysis of gas kinematics, ionization conditions, and metallicity of star-forming regions in the galaxy is presented. The aim of the paper is to analyse the propagation of star formation in the galaxy and to understand the role of the ongoing star formation in the evolution of the central 'galaxy-sized' supergiant H I shell (SGS), where all regions of star formation are observed. We show that star formation in the galaxy occurs in large unified complexes rather than in individual giant H II regions. Evidence of the triggered star formation is observed both on scales of individual complexes and of the whole galaxy. We identified two supernova-remnant candidates and one late-type WN star and analysed their spectrum and surrounding-gas kinematics. We provide arguments indicating that the SGS in Holmberg I is destructing by the influence of star formation occurring on its rims.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): ISM: bubbles - ISM: kinematics and dynamics - ISM: supernova remnants - galaxies: individual: Holmberg I - galaxies: irregular - galaxies: star formation

Simbad objects: 45

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Number of rows : 45
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 Mahtessian 4 GrG 00 21.1 +22 08           ~ 3 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 Mahtessian 25 GrG 01 46.4 +10 20           ~ 4 0
4 [TSK2008] 330 GrG 01 47 42.0 +27 22 58           ~ 5 0
5 NAME NGC 691 Group GrG 01 50.4 +21 55   11.2       ~ 13 0
6 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1153 0
7 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 812 2
8 NAME M 81 Dwarf A G 08 23 55.1 +71 01 56   16.5       ~ 209 1
9 AG+81 266 HS* 09 21 19.1766306264 +81 43 27.630508800 10.392 11.59 11.95 12.09 12.281 sdO 75 0
10 [MH94a] Ho I 1 HII 09 40 13.8 +71 12 02           ~ 2 0
11 [MH94a] Ho I 2 HII 09 40 16.1 +71 11 05           ~ 2 0
12 [MH94a] Ho I 3 HII 09 40 17.5 +71 11 39           ~ 2 0
13 [MH94a] Ho I 4 HII 09 40 18.1 +71 11 11           ~ 2 0
14 [MH94a] Ho I 5 HII 09 40 19.6 +71 11 48           ~ 2 0
15 [MH94a] Ho I 6 HII 09 40 20.5 +71 11 28           ~ 2 0
16 [MH94a] Ho I 7 HII 09 40 23.5 +71 10 35           ~ 2 0
17 [MH94a] Ho I 8 HII 09 40 24.1 +71 10 42           ~ 2 0
18 [MH94a] Ho I 10 HII 09 40 24.6 +71 12 15           ~ 2 0
19 [MH94a] Ho I 11 HII 09 40 24.9 +71 10 24           ~ 2 0
20 [MH94a] Ho I 12 HII 09 40 25.1 +71 10 08           ~ 2 0
21 [MH94a] Ho I 13 HII 09 40 25.9 +71 11 18           ~ 3 0
22 [MH94a] Ho I 14 HII 09 40 32.2 +71 10 02           ~ 2 0
23 Z 332-57 LSB 09 40 32.33 +71 10 56.0 14.53 14.00 13.66 13.41   ~ 372 1
24 [MH94a] Ho I 15 HII 09 40 33.0 +71 10 41           ~ 2 0
25 [MH94a] Ho I 16 HII 09 40 33.4 +71 09 57           ~ 2 0
26 [MH94a] Ho I 17 HII 09 40 34.8 +71 10 05           ~ 2 0
27 [MH94a] Ho I 18 HII 09 40 35.2 +71 09 54           ~ 2 0
28 [MH94a] Ho I 19 HII 09 40 35.4 +71 10 11           ~ 2 0
29 [MH94a] Ho I 20 HII 09 40 35.7 +71 10 40           ~ 2 0
30 [MH94a] Ho I 21 HII 09 40 36.5 +71 09 48           ~ 2 0
31 [MH94a] Ho I 22 HII 09 40 36.71 +71 09 55.6           ~ 4 0
32 [MH94a] Ho I 23 HII 09 40 37.4 +71 10 15           ~ 2 0
33 [MH94a] Ho I 24 HII 09 40 38.0 +71 10 51           ~ 2 0
34 [MH94a] Ho I 25 HII 09 40 39.6 +71 10 14           ~ 4 0
35 [MH94a] Ho I 27 HII 09 40 39.9 +71 10 11           ~ 2 0
36 [MH94a] Ho I 26 HII 09 40 39.9 +71 11 16           ~ 2 0
37 [MH94a] Ho I 28 HII 09 40 41.3 +71 10 41           ~ 2 0
38 [MH94a] Ho I 29 HII 09 40 44.31 +71 10 54.5           ~ 4 0
39 [MH94a] Ho I 30 HII 09 40 45.2 +71 11 02           ~ 2 0
40 [MH94a] Ho I 31 HII 09 40 46.2 +71 10 54           ~ 2 0
41 [MH94a] Ho I 32 HII 09 40 46.8 +71 11 03           ~ 2 0
42 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
43 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
44 IC 2574 AG? 10 28 23.6148831408 +68 24 43.440012756 11.70 11.07 10.87 10.74   ~ 703 1
45 NGC 3377A GiP 10 47 22.4012897592 +14 04 16.697296020 14.17 14.31 13.61 13.51   ~ 150 1

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