Observations of Interstellar Water Vapor in Outflow Regions

Details Observations of Interstellar Water Vapor in Outflow Regions Observations of Interstellar Water Vapor in Outflow Regions

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...539l.107n&link_type=abstract

The Astrophysical Journal, Volume 539, Issue 2, pp. L107-L110.

Astronomy and Astrophysics

Astronomy

25

Ism: Abundances, Ism: Clouds, Ism: Molecules

Scientific paper

We have observed the 110-101 transition of interstellar water vapor near 557 GHz toward the three outflow sources NGC 2071, L1157, and NGC 1333 IRAS 4 using the Submillimeter Wave Astronomy Satellite. In each case, the observations reveal broad emission from water in the outflow accompanied by a narrow absorption feature at the velocity of the quiescent gas. Our estimates of the average ortho-water abundance within the outflowing gas lie in the range (0.5-1.6)×10-6 relative to H2.

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