J/A+A/565/A30 NGC 3503 YSO candidates (Duronea+, 2014)
Molecules, dust, and protostars in NGC 3503.
Duronea N.U., Vasquez J., Romero G.A., Cappa C.E., Barba R., Bronfman L.
<Astron. Astrophys. 565, A30 (2014)>
=2014A&A...565A..30D 2014A&A...565A..30D
ADC_Keywords: H II regions ; YSOs ; Photometry, infrared
Keywords: stars: formation - HII regions - ISM: molecules -
ISM: individual objects: NGC 3503
Abstract:
We present here a follow-up study of the molecular gas and dust in the
environs of the star forming region NGC 3503. This study aims at
dealing with the interaction of the HII region NGC 3503 with its
parental molecular cloud, and also with the star formation in the
region, that was possibly triggered by the expansion of the ionization
front against the parental cloud.
To analyze the molecular gas we use CO(J=2-->1), 13CO(J=2-->1),
C18O(J=2-->1), and HCN(J=3-->2) line data obtained with the
on-the-fly technique from the APEX telescope. To study the
distribution of the dust, we make use of unpublished images at 870um
from the ATLASGAL survey and IRAC-GLIMPSE archival images. We use
public 2MASS and WISE data to search for infrared candidate young
stellar objects (YSOs) in the region.
Description:
The molecular observations presented in this paper were made during
October 2011, with APEX at Llano de Chajnantor (Chilean Andes).
In this work we use unpublished images of ATLASGAL at 870um (345GHz)
(Schuller et al. 2009A&A...504..415S 2009A&A...504..415S).
Objects:
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RA (2000) DE Designation(s)
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11 01 15.9 -59 50 39 NGC 3503 = VdBH 46
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 95 64 Candidate YSOs obtained from the 2MASS (II/246)
and MSX (V/114) point source catalogs
table6.dat 86 36 Candidate YSOs obtained from the WISE point source
source (II/311)
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See also:
V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
II/311 : WISE All-Sky Data Release (Cutri+ 2012)
Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq [1/64] Sequential number
4- 5 I2 h RAh Right ascension (J2000)
7- 8 I2 min RAm Right ascension (J2000)
10- 14 F5.2 s RAs Right ascension (J2000)
16 A1 --- DE- Declination sign (J2000)
17- 18 I2 deg DEd Declination (J2000)
20- 21 I2 arcmin DEm Declination (J2000)
23- 26 F4.1 arcsec DEs Declination (J2000)
28- 44 A17 --- Source 2MASS (HHMMSSss+DDMMSSs) or MSX
(GLLL.llll+BB.bbbb) source name
46 A1 --- n_Source [M] M if MSX source name
48- 53 F6.3 mag Jmag ? 2MASS J magnitude for 2MASS source
55- 60 F6.3 mag Hmag ? 2MASS H magnitude for 2MASS source
62- 67 F6.3 mag Kmag ? 2MASS Ks magnitude for 2MASS source
68- 74 F7.5 Jy F8 ? MSX A (8um) flux for MSX source
76- 81 F6.4 Jy F12 ? MSX C (12um) flux for MSX source
83- 88 F6.4 Jy F14 ? MSX D (14um) flux for MSX source
90- 95 F6.4 Jy F21 ? MSX E (21um) flux for MSX source
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [65/100] Sequential number
5- 6 A2 --- Class [I II] YSO class (I or II)
8- 9 I2 h RAh Right ascension (J2000)
11- 12 I2 min RAm Right ascension (J2000)
14- 18 F5.2 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 30 F4.1 arcsec DEs Declination (J2000)
32- 50 A19 --- Source WISE (JHHMMSS.ss+DDMMSS.s) source name
52- 57 F6.3 mag [3.4] ? WISE 3.4um magnitude
59- 64 F6.3 mag [4.6] ? WISE 4.6um magnitude
66- 71 F6.3 mag [12] ? WISE 12um magnitude
73- 77 F5.3 mag [22] ? WISE 22um magnitude
79- 86 A8 --- Match Matching number(s) with sources of table5
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Jul-2014