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J/A+A/472/835       JHKs and GLIMPSE photometry of RCW 120      (Zavagno+, 2007)

Triggered star formation on the borders of the Galactic HII region RCW 120. Zavagno A., Pomares M., Deharveng L., Hosokawa T., Russeil D., Caplan J. <Astron. Astrophys., 472, 835-846 (2007)> =2007A&A...472..835Z
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: To investigate the process of star formation triggered by the expansion of an HII region, we present a multi-wavelength analysis of the Galactic HII region RCW 120 and its surroundings. The collect and collapse model predicts that the layer of gas and dust accumulated between the ionization and shock fronts during the expansion of the HII region collapses and forms dense fragments, giving rise to potential sites of massive-star formation. The aim of our study is to look for such massive fragments and massive young stars on the borders of RCW 120. We mapped the RCW 120 region in the cold dust continuum emission at 1.2 mm to search for these fragments. We supplemented this study with the available near- (2MASS) and mid-IR (GLIMPSE) data to locate the IR sources observed towards this region and to analyse their properties. We then compared the observational results with the predictions of Hosokawa & Inutsuka's model (2005ApJ...623..917H; 2006ApJ...646..240H). Description: Of the two sets of observations, the SEST-SIMBA contains continuum maps at 1.2-mm (250GHz) of a 20'x20' field centred on RCW 120 were obtained using the 37-channel SIMBA bolometer array (SEST Imaging Bolometer Array) on May 7-8, 2003. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 128 135 Magnitudes of IR sources observed towards RCW 120
See also: II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) http://www.astro.wisc.edu/glimpse/ : GLIMPSE Home Page Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 A3 --- Field Field (1) 5- 17 A13 --- Object Object designation 18 A1 --- n_Object [*] Note for Object name corrected (2) 20- 29 F10.6 deg RAdeg Right ascension in decimal degrees (J2000) 31- 40 F10.6 deg DEdeg Declination in decimal degrees (J2000) 42- 47 F6.3 mag Jmag ? 2MASS PSC J magnitude 48 A1 --- u_Jmag Uncertainty flag on Jmag 50- 55 F6.3 mag Hmag ? 2MASS PSC H magnitude 56 A1 --- u_Hmag Uncertainty flag on Hmag 58- 63 F6.3 mag Ksmag ? 2MASS PSC Ks magnitude 64 A1 --- u_Ksmag Uncertainty flag on Ksmag 66- 71 F6.3 mag 3.6um ? GLIMPSE PSC 3.6um magnitude 72 A1 --- n_3.6um [*] when magnitude not from GLIMPSE PSC (3) 74- 79 F6.3 mag 4.5um ? GLIMPSE PSC 4.5um magnitude 80 A1 --- n_4.5um [*] when magnitude not from GLIMPSE PSC (3) 82- 87 F6.3 mag 5.8um ? GLIMPSE PSC 5.8um magnitude 88 A1 --- n_5.8um [*] when magnitude not from GLIMPSE PSC (3) 90- 95 F6.3 mag 8.0um ? GLIMPSE PSC 8.0um magnitude 96 A1 --- n_8.0um [*] when magnitude not from GLIMPSE PSC (3) 98-128 A31 --- Com Comments about the nature of each source (Class I, Class II, giant)
Note (1): Fields designations as follows: CN = Condensation N TIR = Towards the ionized region OUT = Outside Note (2): These two objects were identified as 25out in the first version of the table (until 18-Jul-2008). - 25out (258.047760 -38.266209) is renamed 46out - 25out (258.225098 -38.365845) is renamed 47out Note (3): When magnitudes where not available from the GLIMPSE PSC, we measured the magnitudes (aperture photometry) using the Basic Calibrated Data frames.
Acknowledgements: Annie Zavagno, History: * 29-Feb-2008: First version of the table * 18-Jul-2008: Two names corrected (from author)
(End) Patricia Vannier [CDS] 28-Feb-2008
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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