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J/A+A/538/A142      OB stars in NGC 6334 and NGC 6357        (Russeil+, 2012)

Statistical study of OB stars in NGC 6334 and NGC 6357. Russeil D., Zavagno A., Adami C., Anderson L.D., Bontemps S., Motte F., Rodon J.A., Schneider N., Ilmane A., Murphy K.J. <Astron. Astrophys. 538, A142 (2012)> =2012A&A...538A.142R
ADC_Keywords: Stars, early-type ; Stars, OB ; Photometry, UBVRI Keywords: HII regions - dust, extinction Abstract: Star-forming complexes are large structures exhibiting massive star-formation at different stages of evolution, from dense cores to well-developed HII regions. They are very interesting for the study of the formation and evolution of stars. NGC 6334 and NGC 6357 are two active and relatively nearby star-forming complexes. From the extinction map and the sub-mm cold dust emission, and because they have similar velocities, these regions are most likely connected. However, located in the direction of the Galactic center their radial velocity is not representative of their distance. An alternative is then to determine the distance of NGC 6334 and NGC 6357 from their stellar content. Our aim is to perform a census of O-B3 ionising stars in NGC 6334 and NGC 6357, to determine the extinction coefficient, and the distance of both regions. A census of O-B3 stars is an essential basis for estimating the statistical lifetime of the earliest massive star-forming phases. Description: We performed a U, B, V, and R photometric survey of a large area covering NGC 6334 and NGC 6357 with the VIMOS (ESO-VLT) and the MOSAIC (CTIO) instruments. The tables present the magnitudes of stars in the field of NGC6334 and NGC6357. The UBV data is from VIMOS (ESO-VLT) while R data is from (Blanco-CTIO). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 99 30388 Stars with U, B, and V magnitudes tablea2.dat 66 53415 Catalogue of stars: R magnitudes
See also: J/ApJS/69/99 : NGC 6334 centers of star formation JHK phot. (Straw+ 1989) J/A+A/316/102 : JHK Photometry in NGC 6334 (Tapia+, 1996) J/A+A/357/1020 : JHK photometry in NGC 6334 IV (Persi+, 2000) J/ApJ/668/906 : Massive clumps in NGC 6334 (Munoz+, 2007) J/ApJS/168/100 : X-ray study of star-forming region NGC 6357 (Wang+, 2007) J/AJ/136/2083 : Clumps in NGC 6334 from 450/850um obs. (Matthews+, 2008) J/A+A/515/A55 : NGC 6334-NGC 6357 complex (Russeil+, 2010) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
3- 4 I2 h RAh Right ascension (J2000) 6- 7 I2 min RAm Right ascension (J2000) 9- 13 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- 28 F5.2 arcsec DEs Declination (J2000) 30- 36 F7.3 deg RAdeg Right ascension in decimal degrees (J2000) 38- 44 F7.3 deg DEdeg Declination in decimal degrees (J2000) 46- 52 F7.4 mag Vmag V magnitude 55- 61 F7.4 mag e_Vmag V magnitude uncertainty 65- 71 F7.4 mag Bmag B magnitude 74- 80 F7.4 mag e_Bmag B magnitude uncertainty 84- 90 F7.4 mag Umag U magnitude 93- 99 F7.4 mag e_Umag U magnitude uncertainty
Byte-by-byte Description of file: tablea2.dat
Bytes Format Units Label Explanations
3- 4 I2 h RAh Right ascension (J2000) 6- 7 I2 min RAm Right ascension (J2000) 9- 12 F4.1 s RAs Right ascension (J2000) 16 A1 --- DE- Declination sign (J2000) 17- 18 I2 deg DEd Declination (J2000) 20- 21 I2 arcmin DEm Declination (J2000) 23- 26 F4.1 arcsec DEs Declination (J2000) 30- 36 F7.3 deg RAdeg Right ascension in decimal degrees (J2000) 40- 47 F8.4 deg DEdeg Declination in decimal degrees (J2000) 51- 57 F7.4 mag Rmag R magnitude 61- 66 F6.4 mag e_Rmag R magnitude uncertainty
Acknowledgements: Delphine Russeil, delphine.russeil(at)oamp.fr
(End) Patricia Vannier [CDS] 27-Dec-2011
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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