J/A+A/400/533 New infrared star clusters in southern Milky Way (Dutra+, 2003)
New infrared star clusters in the southern Milky Way with 2MASS.
Dutra, C.M., Bica, E., Soares, J., Barbuy B.
<Astron. Astrophys. 400, 533 (2003)>
=2003A&A...400..533D 2003A&A...400..533D
ADC_Keywords: Clusters, open ; Infrared sources
Keywords: Galaxy: open clusters and associations: general - infrared: general
Description:
We carried out a 2MASS J, H and Ks survey of infrared star clusters in
the Milky Way sector 230°<l<350°. This zone was the least
studied in the literature, previously including only 12 infrared
clusters or stellar groups with |b|<10°, according to the recent
catalogue by Bica et al. (2003, Cat. J/A+A/397/177). We concentrated
efforts on embedded clusters, which are those expected in the areas of
known radio and optical nebulae. The present study provides 179 new
infrared clusters and stellar groups, which are interesting targets
for detailed future infrared studies. The sample of catalogued
infrared clusters and stellar groups in the Galaxy is now increased by
63%.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 140 123 New objects in the area of optical nebulae
table4.dat 135 56 New objects in the area of radio/infrared nebulae
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See also:
J/A+A/397/177 : IR star clusters and stellar groups catalog (Bica+, 2003)
J/MNRAS/338/253 : K extinction within 10° of Galactic Centre (Dutra+, 2003)
Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/179] Object sequential number
5- 10 F6.2 deg GLON Galactic longitude
12- 16 F5.2 deg GLAT Galactic latitude
18- 19 I2 h RAh Right ascension (J2000)
21- 22 I2 min RAm Right ascension (J2000)
24- 25 I2 s RAs Right ascension (J2000)
27 A1 --- DE- Declination sign
28- 29 I2 deg DEd Declination (J2000)
31- 32 I2 arcmin DEm Declination (J2000)
34- 35 I2 arcsec DEs Declination (J2000)
37- 39 F3.1 arcmin D Major axis
41- 43 F3.1 arcmin d Minor axis
45- 88 A44 --- Neb Related Nebulae
89 A1 --- n_Neb [fghi] Note on Related Nebulae (1)
91- 94 A4 --- Type Object class (2)
96-135 A40 --- Com Comments
137 A1 --- n_Com [abcde] Individual note (1)
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Note (1): Notes:
a: at Northeast edge of Ced 93, unrelated?
b: at East edge of Ced 93
c: not Bochum 6
d: in dk neb. 1.9' N of NGC 2626 = vdBH-RN 17a = BRC 54
e: at edge of G 289.8-1.1
f: in Gum 38a = RCW 57a
g: =G 291.858-0.675
h: in Bran 391
i: in Gum 55 = RCW 113
Note (2): Object classes:
IRC : Infrared cluster
IRCC: cluster candidate
IRGr: stellar group
IROC: open cluster
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Acknowledgements: Carlos Dutra
(End) Dutra [IAG-USP], Patricia Bauer [CDS] 14-Jan-2003