Detection of Thermal Water Vapor Emission from W Hydrae

David A. Neufeld,Wesley Chen,Gary J. Melnick,Thijs de Graauw,H. Feuchtgruber,L. Haser,D. Lutz,Martin Harwit

Detection of Thermal Water Vapor Emission from W Hydrae

1997

David A. Neufeld
Wesley Chen
Gary J. Melnick
Thijs de Graauw
H. Feuchtgruber
L. Haser
D. Lutz
Martin Harwit

We have detected four far-infrared emission lines of water vapor toward the evolved star W Hydrae, using the Short Wavelength Spectrometer (SWS) of the Infrared Space Observatory (ISO). This is the first detection of thermal water vapor emission from a circumstellar outflow.

Keywords:

Thermal
O-type star
Water vapor
Wolf–Rayet star
Spectral line
Far infrared
Astronomy
Physics
Astrophysics
Emission spectrum
Wavelength
Spectrometer
Infrared

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