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J/AJ/128/2364       JHK photometry of RCW 95 HII region     (Roman-lopes+, 2004)

A rich star-forming region in the direction of RCW 95. Roman-lopes A., Abraham Z. <Astron. J., 128, 2364-2373 (2004)> =2004AJ....128.2364R
ADC_Keywords: H II regions ; Stars, pre-main sequence ; Photometry, infrared Keywords: dust, extinction - H II regions - infrared: stars - stars: formation - stars: pre-main-sequence Abstract: Near-IR imaging in the direction of the IRAS 15408-5356 point source, which is associated with the RCW 95 HII region, revealed a young and massive stellar cluster. We detected 136 member candidates up to our completeness limit, embedded in an infrared nebula and concentrated in an area of about 3pc2. About 60% of the candidates detected in all three of the J, H, and K bands present infrared excess at 2.2µm. he UV photons provided by the most massive stars are enough to explain the observed free-free emission at radio wavelengths and the integrated infrared luminosity produced by the heated dust. The near-IR counterpart of the IRAS point source was identified using a more accurate position from the Midcourse Space Experiment (MSX) catalog; it coincides with the peak of emission in the MSX mid-IR bands. The measured integrated flux density of the infrared nebula at the K band is compatible with the expected free-free emission derived from the radio data, but an excess at the J and H bands was detected and may be due to either nonhomogeneous absorption across the nebula or to the presence of scattered stellar light, more prominent at smaller wavelengths. Description: The imaging observations were performed in two epochs, 2000 May and 2003 May, with the Near Infrared Camera (CamIV) of the Laboratorio Nacional de Astrofisica (LNA), Brazil. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 86 136 List of the Selected Near-Infrared Sources
See also: II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- IRS The IRS name, [RA2004b] IRS NNN in Simbad 5- 6 I2 h RAh Hour of right ascension (J2000) 8- 9 I2 min RAm Minute of right ascension (J2000) 11- 15 F5.2 s RAs Second of right ascension (J2000) 17 A1 --- DE- Sign of the declination (J2000) 18- 19 I2 deg DEd Degree of declination (J2000) 21 I1 arcmin DEm Arcminute of declination (J2000) 23- 26 F4.1 arcsec DEs Arcsecond of declination (J2000) 28- 32 F5.2 mag J2mag ? 2MASS J-band magnitude 34- 35 I2 cmag e_J2mag ? The uncertainty in J2mag 37- 41 F5.2 mag Jmag ? Near Infrared Camera J-band magnitude 43- 44 I2 cmag e_Jmag ? The uncertainty in Jmag 46- 50 F5.2 mag H2mag ? 2MASS H-band magnitude 52- 53 I2 cmag e_H2mag ? The uncertainty in H2mag 55- 59 F5.2 mag Hmag Near Infrared Camera H-band magnitude 61- 62 I2 cmag e_Hmag The uncertainty in Hmag 64- 68 F5.2 mag Ksmag ? 2MASS K-band magnitude 70- 71 I2 cmag e_Ksmag ? The uncertainty in K2mag 73- 77 F5.2 mag Kmag ? Near Infrared Camera K-band magnitude 79- 80 I2 cmag e_Kmag ? The uncertainty in Kmag 82- 85 A4 --- SpType MK Spectral type
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 23-Aug-2005
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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