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J/A+A/404/223       2MASS IR star clusters in the Galaxy           (Bica+, 2003)

New infrared star clusters in the Northern and Equatorial Milky Way with 2MASS. Bica E., Dutra C.M., Soares J., Barbuy B. <Astron. Astrophys. 404, 223 (2003)> =2003A&A...404..223B
ADC_Keywords: Infrared sources ; Associations, stellar Keywords: Galaxy: open clusters and associations: general - infrared: general Abstract: We carried out a survey of infrared star clusters and stellar groups on the 2MASS J, H and Ks all-sky release Atlas in the Northern and Equatorial Milky Way (350°,l<360°, 0°<l<230°). The search in this zone complements that in the Southern Milky Way (Dutra et al., 2003, Cat. J/A+A/400/533). The method concentrates efforts on the directions of known optical and radio nebulae. The present study provides 167 new infrared clusters, stellar groups and candidates. Combining the two studies for the whole Milky Way, 346 infrared clusters, stellar groups and candidates were discovered, whereas 315 objects were previously known. They constitute an important new sample for future detailed studies. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 140 103 New objects in the area of optical nebulae table2.dat 140 64 New objects in the area of radio/infrared nebulae
See also: J/A+A/400/533 : New infrared star clusters in southern Milky Way (Dutra+, 2003) Byte-by-byte Description of file: table1.dat table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [BDS2003] [1/167] Object sequential number 4 A1 --- n_[BDS2003] [a-g] Individual notes (1) 6- 11 F6.2 deg GLON Galactic longitude 13- 18 F6.2 deg GLAT Galactic latitude 20- 21 I2 h RAh Right ascension (J2000) 23- 24 I2 min RAm Right ascension (J2000) 26- 27 I2 s RAs Right ascension (J2000) 29 A1 --- DE- Declination sign (J2000) 30- 31 I2 deg DEd Declination (J2000) 33- 34 I2 arcmin DEm Declination (J2000) 36- 37 I2 arcsec DEs Declination (J2000) 39- 42 F4.2 arcmin Dmaj Major angular dimension 44- 47 F4.2 arcmin Dmin Minor angular dimension 49-101 A53 --- Neb Related Nebulae (2) 102 A1 --- n_Neb [a-j] Note on Neb (3) 104-107 A4 --- Class Classification (4) 109-140 A32 --- Rem Remarks (5)
Note (1): Notes are coded as follows: a: triplet with the NGC 6857 and K3-50B clusters (Bica et al., 2003, Cat. J/A+A/397/177) b: the present Objects 54, 55 and 56 form a quadruplet with the W3-IRS5 Cluster (Bica et al., 2003, Cat. J/A+A/397/177), c: the present Objects 71, 72 and 73 together with the Sh2-235B Cluster form a quadruplet, d: in Object NGC 6334V (Bica et al., 2003, Cat. J/A+A/397/177) e: quadruplet with W49A, W49A-east and W49A-southwest clusters (Bica et al., 2003, Cat. J/A+A/397/177) f: the 2MASS images indicate stellar sources which suggest a small stellar group g: NGC 7538 IR Cluster in Bica et al. (2003, Cat. J/A+A/397/177) can be divided into a large loose NW and a compact SE (NGC 7538-IRS1 Cluster) components. These two clusters together with the present object form a triplet, Note (2): In Simbad, GM1-45 = GM 3-45, Gy82-13 = [G82a] 13, Gy 3-4 = [G84c] 4 Note (3): Notes on nebulae as follows: a: in Hourglass Nebula (Woodward et al., 1990ApJ...365..252W), in Ced152a = IRAS 18009-2427 = G5.956-1.265, b: = Gy82-2 = IRAS 02534+6029, c: in Sh2-206, d: in Ced61 = DG86, e: in NGC 6334=RCW127 = CTB39. f: in W51d = W51-IRS2 (Goldader & Wynn-Wiliams, 1994ApJ...433..164G) g: in W51e = W51-IRS1-North (Goldader & Wynn-Wiliams, 1994ApJ...433..164G) h: in W51-IRS1-South (Goldader & Wynn-Wiliams, 1994ApJ...433..164G) i: Tapia et al. (1985MNRAS.213..833T), j: the 2MASS images indicate several stellar sources which suggest a small cluster or stellar group around the massive YSO (Marengo et al., 2000ApJ...541L..63M), Note (4): Object classes: IRC: infrared cluster IRCC: cluster candidate IRGr: stellar group IROC: open cluster Note (5): Remarks including distance (in case of kinematical ambiguity the near and far distances are shown), multiplicity and linear dimension.
History: From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 22-Sep-2003
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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