2018MNRAS.474L..66G

Query : 2018MNRAS.474L..66G

2018MNRAS.474L..66G - Mon. Not. R. Astron. Soc., 474, L66-L70 (2018/February-2)

Massive stars in the Sagittarius Dwarf Irregular Galaxy.

GARCIA M.

Abstract (from CDS):

Low metallicity massive stars hold the key to interpret numerous processes in the past Universe including re-ionization, starburst galaxies, high-redshift supernovae, and γ-ray bursts. The Sagittarius Dwarf Irregular Galaxy [SagDIG, 12+log(O/H) = 7.37] represents an important landmark in the quest for analogues accessible with 10-m class telescopes. This Letter presents low-resolution spectroscopy executed with the Gran Telescopio Canarias that confirms that SagDIG hosts massive stars. The observations unveiled three OBA-type stars and one red supergiant candidate. Pending confirmation from high-resolution follow-up studies, these could be the most metal-poor massive stars of the Local Group.

Abstract Copyright: © 2017 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: early-type - stars: massive - galaxies: individual: SagDIG - galaxies: stellar content

Simbad objects: 22

goto Full paper

goto View the references in ADS

Number of rows : 22
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 NGC 55 rG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 828 2
3 [CHG2008] C1-31 Cl* 00 15 00.010 -39 12 41.39     18.523   19.239 WN+O 4 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
7 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
8 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
9 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
10 GD 190 WD* 15 44 19.4543884752 +18 06 43.775072424 13.537 14.556 14.677 14.767 14.849 DB2 94 0
11 [BBF2014] 7783 * 19 29 52.9770852360 -17 41 05.096849856     18.875   17.912 G5V 1 0
12 [BBF2014] 8017 * 19 29 54.9130204680 -17 41 01.092467832     19.124   17.819 K4V 1 0
13 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 323 1
14 [MCB2014] 3019 * 19 30 01.91640 -17 40 34.3309     25.476   24.818 G4III 1 0
15 [MCB2014] 30025 * 19 30 02.0067942840 -17 40 48.571714272     20.360   19.143 ~ 1 0
16 [MCB2014] 30481 s*y 19 30 02.1293967672 -17 40 47.657314596     20.731   19.473 G0-2I 1 0
17 [MCB2014] 31570 * 19 30 02.4331867517 -17 40 46.798455295     20.597   19.288 ~ 1 0
18 [MCB2014] 31722 sg* 19 30 02.47635 -17 40 46.8072     20.278   20.120 B/AI 1 0
19 [MCB2014] 32939 * 19 30 02.91173 -17 40 47.1795     21.442   21.585 O/BV 1 0
20 [BBF2014] 8909 * 19 30 03.036 -17 40 45.72     21.774   20.530 ~ 1 0
21 [MCB2014] 33466 s*b 19 30 03.1215310776 -17 40 45.952461012     20.190   20.154 OI 1 0
22 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2018MNRAS.474L..66G and select 'bookmark this link' or equivalent in the popup menu