========================================================================== J/A+A/392/971 Catalogue of bright YSO candidates in ISOGAL (Felli+, 2002) The following files can be converted to FITS (extension .fit .fgz or .fiZ) table3.dat ========================================================================== Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/392/971 ==========================================================================
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Beginning of ReadMe : J/A+A/392/971 Catalogue of bright YSO candidates in ISOGAL (Felli+, 2002) ================================================================================ Young massive stars in the ISOGAL survey. II. The catalogue of bright YSO candidates. Felli M., Testi L., Schuller F., Omont A. <Astron. Astrophys. 392, 971 (2002)> =2002A&A...392..971F ================================================================================ ADC_Keywords: YSOs - Photometry, infrared Keywords: stars: formation - HII regions - Galaxy: structure - infrared: star Abstract: The 7 and 15mum observations of selected fields in the Galactic Plane obtained with ISOCAM during the ISOGAL program offer an unique possibility to search for previously unknown YSOs, undetected by IRAS because of lower sensitivity or confusion problems. In a previous paper (Felli et al., 2000, Cat. J/A+A/362/199) we established criteria of general validity to select YSOs from the much larger population of Post Main Sequence (Post-MS) stars present in the ISOGAL fields by comparing radio and IR observations of five fields located at l 45deg. The selection was based primarily on the position of the point sources in the [15]-([7]-[15]) diagram, which involves only ISOGAL data and allows to find possible YSOs using the survey data alone. In the present work we revise the adopted criteria by comparing radio-identified ultra-compact HII regions and ISOGAL observations over a much larger region. The main indications of the previous analysis are confirmed, but the criteria for selecting YSO candidates had to be revised to select only bright objects, in order to limit the contamination of the sample by Post-MS stars. The revised criteria ([15]<=4.5, [7]-[15]>=1.8) are then used to extract YSO candidates from the ISOGAL Point Source Catalogue in preparation. We select a total of 715 YSO candidates, corresponding to 2 of the sources with good detections at 7 and 15mum. The results are presented in a table form that provides an unique input list of small diameter, <=6", Galactic YSO candidates. The global properties of the sample of YSO candidates are briefly discussed. Description: Table of candidate YSOs extracted from the ISOGAL survey database. For each source we report the ISOGAL name, the galactic coordinates and the mid- and near-infrared photometry, based on the ISOGAL and DENIS surveys. When found in the Becker et al. (1994, Cat. J/ApJS/91/347), the name of the radio continuum counterpart is also reported.
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