Access to Astronomical Catalogues

← Click to display the menu
J/A+A/496/177       JHKs and GLIMPSE photometry of RCW 120   (Deharveng+, 2009)

Star formation around RCW 120, the perfect bubble. Deharveng, L., Zavagno A., Schuller F., Caplan J., Pomares M., De Breuck C. <Astron. Astrophys. 496, 177 (2009)> =2009A&A...496..177D
ADC_Keywords: H II regions ; Stars, early-type ; Photometry, infrared ; Keywords: stars: formation - stars: early-type - ISM: H II regions - ISM: individual objects: RCW 120 Abstract: This study deals with the star formation triggered by HII regions. We wish to take advantage of the very simple morphology of RCW 120 - a perfect bubble - to understand the mechanisms triggering star formation around an HII region and to establish what kind of stars are formed there. We present 870um observations of RCW 120, obtained with the APEX-LABOCA camera. These show the distribution of cold dust, and thus of neutral material. We use Spitzer-MIPS observations at 24um and 70um to detect the young stellar objects present in this region and to estimate their evolutionary stages. Description: Table 1 presents our measured 24um magnitudes along with these objects, 1.25um to 8.0um magnitudes taken from the 2MASS and Spitzer-GLIMPSE catalogues. Column 1 gives an identification number. Columns 2 and 3 are the coordinates according to the Spitzer-GLIMPSE catalogues. Columns 4 to 10 give the J, H, K, [3.6], [4.5], [5.8], and [8.0] magnitudes. These are extracted from the (highly reliable) GLIMPSE I Spring 07 Catalog. When necessary they have been supplemented with values from the (less reliable) GLIMPSE I Spring 07 Archive, and by the 2MASS All-Sky Point Source Catalog (a colon indicates an uncertain measurement). Columns 11 and 12 give our 24um and 70um measurements. Five bright sources which have [24]<1.38mag (as indicated by a colon) are clearly saturated at 24um. Column 13 gives our conclusions concerning the evolutionary stages of the sources (see Sect. 4). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 102 138 Photometry of the 24 µm sources
See also: II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) : GLIMPSE Home Page J/A+A/472/835 : JHKs and GLIMPSE photometry of RCW 120 (Zavagno+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Identification number 5- 15 F11.7 deg RAdeg Right ascension in decimal degrees (J2000) 17- 27 F11.7 deg DEdeg Declination in decimal degrees (J2000) 29- 34 F6.3 mag Jmag ? J magnitude 35 A1 --- u_Jmag Uncertainty flag on Jmag 37- 42 F6.3 mag Hmag ? H magnitude 43 A1 --- u_Hmag Uncertainty flag on Hmag 45- 50 F6.3 mag Kmag ? K magnitude 51 A1 --- u_Kmag Uncertainty flag on Kmag 53- 58 F6.3 mag [3.6] ? 3.6-micron magnitude 59 A1 --- u_[3.6] Uncertainty flag on [3.6] 61- 66 F6.3 mag [4.5] ? 4.5-micron magnitude 67 A1 --- u_[4.5] Uncertainty flag on [4.5] 69- 74 F6.3 mag [5.8] ? 5.8-micron magnitude 75 A1 --- u_[5.8] Uncertainty flag on [5.8] 77- 82 F6.3 mag [8.0] ? 8.0-micron magnitude 83 A1 --- u_[8.0] Uncertainty flag on [8.0] 85- 88 F4.2 mag [24] 24-micron magnitude 89 A1 --- u_[24] Uncertainty flag on [24] 91- 94 F4.1 Jy F(70) ? 70-micron flux 96-102 A7 --- Class Class of object (1)
Note (1): class "I-flat" is assigned to sources which are possibly flat spectrum sources mistaken for Class I because of a large external extinction
Acknowledgements: James Caplan, james.caplan(at)
(End) J. Caplan [Lab. d'Astrophysique Marseille], P. Vannier [CDS] 16-Mar-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

catalogue service