2018MNRAS.473....2B


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.20CEST19:55:14

2018MNRAS.473....2B - Mon. Not. R. Astron. Soc., 473, 2-13 (2018/January-1)

Water masers and ammonia (1, 1) and (2, 2) towards six regions in the Carina Nebula.

BREEN S.L., GREEN C.-E., CUNNINGHAM M.R., VORONKOV M.A., HORIUCHI S. and GREEN J.A.

Abstract (from CDS):

We present water maser and ammonia (1, 1) and (2, 2) observations, towards six regions in the Carina Nebula, conducted with the Australia Telescope Compact Array. In total five water masers were detected within two of the target fields, and we provide their accurate positions and characteristics. These five water masers constitute all of the known masers detected towards star formation regions in the Carina Nebula and we argue, that given the evidence for active star formation, and the presence of many high-mass stars, the Carina Nebula is uncharacteristically devoid of masers. Our results are consistent with the Carina Nebula having a lack of young high-mass stars, despite the presence of older high-mass stars. Ammonia (1, 1) and (2, 2) emission was detected towards all but one of the target fields and we find that their linewidths and derived temperatures are consistent with the presence of young star formation regions.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): masers - stars: formation - ISM: molecules - radio lines: ISM - radio lines: ISM

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14325 1
2 [W94d] Car I-W Rad 10 43 21.4 -59 34 27           ~ 9 0
3 [W94d] Car I-E Rad 10 43 31.9 -59 35 28           ~ 8 0
4 NAME Carina I HII Region HII 10 43 32 -59 35.0           ~ 50 0
5 GAL 287.4-00.6 MoC 10 43 35 -59 35.5           ~ 5 0
6 HH 666 HH 10 43 51.3 -59 55 21           ~ 20 0
7 Cl Trumpler 14 OpC 10 43 56 -59 33.0   5.70 5.5     ~ 412 0
8 NGC 3372 HII 10 44 19.0 -59 53 21           ~ 865 2
9 * eta Car Em* 10 45 03.5455050 -59 41 03.951060 6.37 7.034 6.21 4.90 4.41 OBepec 2148 0
10 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2634 2
11 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 917 1

    Equat.    Gal    SGal    Ecl

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2019.10.20-19:55:14

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