Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...168..237w&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 168, no. 1-2, Nov. 1986, p. 237-247.
Astronomy and Astrophysics
Astronomy
154
Astronomical Spectroscopy, Infrared Spectra, Interstellar Masers, Molecular Clouds, Star Formation, Water Masers, Astronomical Catalogs, Color-Color Diagram, Infrared Astronomy Satellite, Interstellar Matter, Temperature Distribution
Scientific paper
The authors have used the 100-m Effelsberg telescope to search for H2O-maser emission from sources chosen from the IRAS point-source catalogue in the direction of molecular clouds. Eleven new sources towards Cepheus and two towards Orion were detected. From 6 cm H2CO measurements towards detected sources, it is confirmed that, in general, the new H2O masers are associated with the molecular clouds. It is found also that far infrared sources associated with H2O masers are located in a characteristic region of IRAS color-color diagrams. A by-product of this study is the result that the luminosity function of the IRAS sources seen towards the Orion and Cepheus clouds is close to what one expects on the basis of the locally observed initial mass function.
Walmsley Charles Malcolm
Wouterloot Jan G. A.
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