J/A+A/510/A1 Near infrared imaging of cometary globule CG12 (Haikala+, 2010)
Near infrared imaging of the cometary globule CG12.
Haikala L.K., Reipurth B.
<Astron. Astrophys. 510, A1 (2010)>
=2010A&A...510A...1H 2010A&A...510A...1H
ADC_Keywords: Globules ; Stars, pre-main sequence ; Photometry, infrared
Keywords: stars: formation - stars: pre-main-sequence -
ISM: individual objects: CG 12 - ISM: individual objects: NGC 5367 -
infrared: stars
Abstract:
Cometary globule 12 is a relatively little investigated medium- and
low mass star forming region 210pc above the Galactic plane.
This study sets out to discover the possibly embedded members of the
CG 12 stellar cluster, to refine the NIR photometry of the known
member stars and to study the star formation activity in CG 12 and its
relation to the distribution of molecular gas, dust and mid- to
far-infrared emission in the cloud.
NIR J, H, and Ks imaging and stellar photometry is used to analyse the
stellar content and the structure of CG 12.
Description:
We present J, H, Ks photometry of stars in an approx. 5' by 5' area in
the cometary globule 12 head centered at 13:57:40, -39:58, J2000.
The magnitudes are in the 2MASS photometric system and positional
accuracy is better than 0.5".
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 101 227 Stellar J,H,Ks photometry in CG12 head
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See also:
J/MNRAS/355/1272 : BVIJHKs photometry around CG 12 (Maheswar+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Star sequential number
5- 23 A19 --- Name Stellar identification, JHHMMSS.ss+DDMMSS.s
25- 26 I2 h RAh Right ascension (J2000)
28- 29 I2 min RAm Right ascension (J2000)
31- 35 F5.2 s RAs Right ascension (J2000)
37 A1 --- DE- Declination sign
38- 39 I2 deg DEd Declination (J2000)
41- 42 I2 arcmin DEm Declination (J2000)
44- 47 F4.1 arcsec DEs Declination (J2000)
49- 53 F5.2 mag Jmag ?=99.99 J magnitude
55- 58 F4.2 mag e_Jmag ?=9.99 Formal error on Jmag
60- 64 F5.2 mag Hmag H magnitude
66- 69 F4.2 mag e_Hmag Formal error on Hmag
71- 75 F5.2 mag Ksmag Ks magnitude
77- 80 F4.2 mag e_Ksmag Formal error on Ksmag
82- 86 F5.2 mag J-H ?=99.99 J-H colour index
88- 92 F5.2 mag H-Ks H-Ks colour index
94 I1 --- Mm [1/2]? Membership flag [1=member] (1)
96-101 A6 --- Comment Comments (2)
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Note (1): Membership flag as follows:
1 = CG12 cluster member
2 = possible CG12 cluster member
Note (2): Comments as follows:
IN = identification in Getman et al. (2008ApJ.673..331S),
[GFL2008] R NN in Simbad
W77-6 = Williams et al. (1977MNRAS.180..709W 1977MNRAS.180..709W) star #6,
NGC 5367 6 in Simbad
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Acknowledgements:
Lauri K. Haikala, lauri.haikala(at)helsinki.fi
(End) Lauri Haikala [Univ. of Helsinki Obs.], Patricia Vannier [CDS] 12-Jan-2010