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J/ApJ/658/358    Ae/Be stars of Magellanic Bridge in JHKs    (Nishiyama+, 2007)

Herbig Ae/Be stars in the Magellanic Bridge. Nishiyama S., Haba Y., Kato D., Baba D., Hatano H., Tamura M., Nakajima Y., Ishihara A., Nagata T., Sugitani K., Matsunaga N., Fukushi H., Kusakabe N., Sato S. <Astrophys. J., 658, 358-366 (2007)> =2007ApJ...658..358N
ADC_Keywords: Magellanic Clouds ; Stars, pre-main sequence ; Photometry, infrared Keywords: infrared: stars - Magellanic Clouds - stars: formation - stars: pre-main sequence Abstract: We have found Herbig Ae/Be star candidates in the western region of the Magellanic Bridge. Using the near-infrared camera SIRIUS and the 1.4m telescope IRSF, we surveyed ∼3.0°x1.3° (24°≲RA≲36°, -75.0°≲DE≲-73.7°) in the J, H, and Ks bands. On the basis of colors and magnitudes, about 200 Herbig Ae/Be star candidates are selected. Considering the contaminations by miscellaneous sources, such as foreground stars and early-type dwarfs in the Magellanic Bridge, we estimate that about 80 (#40%) of the candidates are likely to be Herbig Ae/Be stars. We also found one concentration of the candidates at the young star cluster NGC 796, strongly suggesting the existence of pre-main-sequence (PMS) stars in the Magellanic Bridge. This is the first detection of PMS star candidates in the Magellanic Bridge, and if they are genuine PMS stars, this could be direct evidence of recent star formation. However, the estimate of the number of Herbig Ae/Be stars depends on the fraction of classical Be stars, and thus a more precise determination of the Be star fraction or observations to differentiate between the Herbig Ae/Be stars and classical Be stars are required. Description: Our observations were conducted in 2004 August and 2005 March, July, and August using the near-infrared camera SIRIUS (Simultaneous Infrared Imager for Unbiased Survey) on the IRSF (Infrared Survey Facility) telescope. IRSF is a 1.4m telescope constructed and operated by Nagoya University and SAAO (South African Astronomical Observatory) at Sutherland, South Africa. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 60 203 Catalog of Herbig Ae/Be star candidates in the Magellanic Bridge
See also: J/other/PASAu/6.471 : Magellanic Clouds bridge region HI profiles (McGee+ 1986) J/ApJS/101/41 : SMC and Bridge extended catalog (Bica+ 1995) J/MNRAS/339/105 : Western Magellanic Bridge HI observations (Muller+, 2003) J/ApJ/658/345 : CRIc photometry of Magellanic Bridge Fields (Harris 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [NHK2007] Sequential number 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 15 F5.2 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 29- 33 F5.2 mag Jmag Johnson J magnitude 35- 38 F4.2 mag e_Jmag rms uncertainty on Jmag 40- 44 F5.2 mag Hmag Johnson H magnitude 46- 49 F4.2 mag e_Hmag rms uncertainty on Hmag 51- 55 F5.2 mag Ksmag Johnson Ks magnitude 57- 60 F4.2 mag e_Ksmag rms uncertainty on Ksmag
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 21-Jan-2009
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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