H2CO and H110α survey toward UCHII regions

Details H2CO and H110α survey toward UCHII regions H2CO and H110α survey toward UCHII regions

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011raa....11..156h&link_type=abstract

Research in Astronomy and Astrophysics, Volume 11, Issue 2, pp. 156-162 (2011).

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

We report results of the H2CO and H110α survey toward 281 UCHII regions using the Urumqi 25m radio telescope. We obtained 37 new H2CO detections, and H110α was simultaneously detected in eight of them. Only H110α was detected in another UCHII region. We calculated kinematic distances of nine UCHII regions with the detected H110α and resolved the kinematic distance ambiguity for six of them. The detection rate of H2CO of our observation was 13.2%, which is low compared with one of the other authors. The possible reason is that the sensitivity of our telescope is relatively low.

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