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J/AJ/125/1940     JHKs photometry in LMC HII region N11B          (Barba+, 2003)

Active star formation in the N11B nebula in the Large Magellanic Cloud: a sequential star formation scenario confirmed. Barba R.H., Rubio M., Roth M.R., Garcia J. <Astron. J. 125, 1940 (2003)> =2003AJ....125.1940B
ADC_Keywords: Magellanic Clouds ; H II regions ; Photometry, infrared Keywords: HII regions - infrared radiation - ISM: individual (N11) - ISM: molecules - Magellanic Clouds - Stars: formation Abstract: The second largest H II region in the Large Magellanic Cloud, N11B (LHA 120-N 11B) has been surveyed in the near-IR. We present JHKs images of the N11B nebula. These images are combined with CO (1->0) emission-line data and with archival New Technology Telescope and Hubble Space Telescope WFPC2 optical images to address the star formation activity of the region. IR photometry of all the IR sources detected is given. We confirm that a second generation of stars is currently forming in the N11B region. Our IR images show the presence of several bright IR sources that appear to be located toward the molecular cloud as seen from the CO emission in the area. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 98 184 IR Sources in a Field of N11B table4.dat 60 18 Candidates Herbig Ae/Be stars in a field of N11B
See also: J/AJ/103/1205 : Stellar Content of LH 9 and 10 in the LMC (Parker+ 1992) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- BRRG The BRRG number (this paper) 5 I1 h RAh Hour of right ascension (J2000) 7- 8 I2 min RAm Minute of right ascension (J2000) 10- 14 F5.2 s RAs Second of right ascension (J2000) 16 A1 --- DE- Sign of the declination (J2000) 17- 18 I2 deg DEd Degree of declination (J2000) 20- 21 I2 arcmin DEm Arcminute of declination (J2000) 23- 26 F4.1 arcsec DEs Arcsecond of declination (J2000) 28- 32 F5.2 mag Jmag ?=99.99 The J-band magnitude (1) 34- 37 F4.2 mag e_Jmag ?=9.99 The error in Jmag (1) 39- 43 F5.2 mag Hmag ?=99.99 The H-band magnitude (1) 45- 48 F4.2 mag e_Hmag ?=9.99 The error in Hmag (1) 50- 54 F5.2 mag Ksmag ?=99.99 The K_s_ band magnitude (1) 56- 59 F4.2 mag e_Ksmag ?=9.99 The error in Ksmag (1) 61- 65 F5.2 mag J-H ?=99.99 The (J-H) color (1) 67- 71 F5.2 mag H-Ks ?=99.99 The (H-K_s_) color (1) 73- 98 A26 --- Opt Optical counterpart identification and comments (2)
Note (1): A value of 99.99 (or 9.99 in an error column) indicates a null observation. Note (2): Numbered from Parker et al., 1992, Cat. J/AJ/103/1205.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 3 I3 --- BRRG The BRRG number 5 I1 h RAh Hour of right ascension (J2000) 7- 8 I2 min RAm Minute of right ascension (J2000) 10- 14 F5.2 s RAs Second of right ascension (J2000) 16 A1 --- DE- Sign of the declination (J2000) 17- 18 I2 deg DEd Degree of declination (J2000) 20- 21 I2 arcmin DEm Arcminute of declination (J2000) 23- 26 F4.1 arcsec DEs Arcsecond of declination (J2000) 28 A1 --- l_Jmag Limit flag on Jmag 29- 33 F5.2 mag Jmag The J-band magnitude 35- 38 F4.2 mag e_Jmag ? The error in Jmag 40 A1 --- l_J-H Limit flag on Hmag 41- 44 F4.2 mag J-H The (J-H) color 46- 49 F4.2 mag e_J-H ? The error in (J-H) color 52- 55 F4.2 mag H-Ks The (H-Ks) color 57- 60 F4.2 mag e_H-Ks The error on (H-Ks) color
History: From electronic version of the journal * 07-Jul-2004: table 1, BRRG = 113: J-H replaced by 99.99 (was 81.38)
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 22-May-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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