2012A&A...547A..60P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST00:06:47

2012A&A...547A..60P - Astronomy and Astrophysics, volume 547A, 60-60 (2012/11-1)

The molecular clump towards the eastern border of SNR G18.8+0.3.

PARON S., ORTEGA M.E., PETRIELLA A., RUBIO M., DUBNER G. and GIACANI E.

Abstract (from CDS):

The eastern border of the SNR G18.8+0.3, close to an HII regions complex, is a very interesting region for studying the molecular gas that it is probably in contact with the supernova remnant (SNR) shock front. We observed this region using the Atacama Submillimeter Telescope Experiment (ASTE) in the J=3-2, J=3-2, HCO+ J=4-3, and CS J=7-6 lines with an angular resolution of 22''. To complement these observations, we analyzed infrared, submillimeter, and radio continuum archival data. In this work, we clearly show that the radio continuum ``protrusion'' that was earlier thought to belong to the SNR is an HII region complex that is deeply embedded in a molecular clump. The new molecular observations reveal that this dense clump, belonging to an extended molecular cloud that surrounds the SNR's southeast border, is not physically in contact with SNR G18.8+0.3, suggesting that the SNR shock front has not yet reached it or that they may be located at different distances. We found some young stellar objects embedded in the molecular clump, suggesting that their formation should be approximately coeval with the SN explosion.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: supernova remnants - stars: formation

Nomenclature: [POP2012b] IRN=[POP2012b] RSN N=3

Simbad objects: 8

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Number of rows : 8

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 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11542 0
2 SNR G018.8+00.3 SNR 18 24.0 -12 23           ~ 93 0
3 WISE J182411.60-122726.0 IR 18 24 11.6 -12 27 26           ~ 1 0
4 MSX6C G018.7621+00.2634 Y*O 18 24 12.882 -12 27 41.42           ~ 5 1
5 [GBH2005] G018.76266+0.26345 HII 18 24 12.93 -12 27 36.2           ~ 1 0
6 MSX6C G018.7621+00.2673 IR 18 24 13.501 -12 27 30.24           ~ 1 0
7 HRDS G018.751+00.254 HII 18 24 13.7 -12 28 31           ~ 10 0
8 [WWS2012] G018.76+00.26 cor 18 24 13.7074 -12 27 37.092           ~ 9 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-00:06:47

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