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J/A+A/327/755       OH maser emission from IRAS sources (Palla+ 1997)

Search for H2O maser emission from high-latitude IRAS sources Palla F., Codella C., Valdettaro R., Baffa C. <Astron. Astrophys. 327, 755 (1997)> =1997A&A...327..755P (SIMBAD/NED BibCode)
ADC_Keywords: Infrared sources ; Masers ; Radio lines Keywords: masers - stars: formation - ISM: clouds - galaxies: starburst Abstract: A high-sensitivity search for water maser emission at 22.2 GHz has been performed on a sample of 91 IRAS point sources at high-latitudes. The aim of the survey is to verify if these clouds are capable of star formation as indicated by the presence of water masers. The sample is based on the recent work of Magnani et al. (1995ApJS...96..159M) who have identified 192 infrared objects from the IRAS Faint Source Survey possibly associated with translucent clouds at galactic latitudes |b|≥30°. These IRAS sources have far-infrared colours typical of young stellar objects and pre-main-sequence stars and thus provide a starting list for further studies about their actual nature. H2O maser emission is a good diagnostic of the presence of dense gas and of recent star formation. We did not find water maser emission at a level of 0.2-0.5Jy (3σ) in any of the 91 objects. The negative result indicates that these high-latitude sources do not represent potential sites of star formation, consistent with the fact that most high-latitude molecular clouds do not appear gravitationally bound. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1 73 56 Sources with IRAS emission at all four bands (Sample A) table2 57 35 Sources with IRAS emission in the 12, 25, 60µm (Sample B)
See also: J/A+A/277/453 : OH maser survey of cool IRAS sources (David+ 1993) Byte-by-byte Description of file: table1 table2
Bytes Format Units Label Explanations
1- 7 A7 --- Name Source Name 10- 20 A11 --- IRAS IRAS Source Name 24- 25 I2 h RAh Right Ascension (1950) 27- 28 I2 min RAm Right Ascension (1950) 30- 33 F4.1 s RAs Right Ascension (1950) 37 A1 --- DE- Declination sign 38- 39 I2 deg DEd Declination (1950) 41- 42 I2 arcmin DEm Declination (1950) 44- 45 I2 arcsec DEs Declination (1950) 49- 52 F4.2 Jy rms Noise of the spectrum
Acknowledgements: Claudio Codella
(End) Patricia Bauer [CDS] 09-Jul-1997
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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