Five new H2O masers located near Herbig-Haro objects

Details Five new H2O masers located near Herbig-Haro objects Five new H2O masers located near Herbig-Haro objects

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...226..115r&link_type=abstract

Astrophysical Journal, Part 1, vol. 226, Nov. 15, 1978, p. 115-118.

Astronomy and Astrophysics

Astronomy

59

Herbig-Haro Objects, Interstellar Masers, Radio Astronomy, Water Masers, H Ii Regions, Infrared Astronomy, Luminosity, O Stars, Protostars, Stellar Evolution

Scientific paper

Five H2O masers were detected in a search of 36 new Herbig-Haro (H-H) objects. Three of the masers are displaced by more than 1 arcmin from the peak of the optical nebulosity. Two of the masers have velocity centroids substantially blueshifted (about 70 km/s) with respect to the velocity of the associated dark cloud. Finally, one of the masers may be related to the H II region NGC 6334, but its nature is unclear. Its large luminosity (about two orders of magnitude larger than other H-H-related H2O masers) and its proximity to an H II region suggest association with an OB star in formation. However, it is also close to a H-H object and possesses a large blueshift never observed in masers related to OB stars, but present in another of the masers reported.

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