Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...575..950o&link_type=abstract
The Astrophysical Journal, Volume 575, Issue 2, pp. 950-973.
Astronomy and Astrophysics
Astronomy
101
Ism: Clouds, Ism: Individual: Name: Taurus Cloud Complex, Ism: Molecules, Radio Lines: Ism, Stars: Formation
Scientific paper
We present the results of an H13CO+ J=1-0 survey for dense molecular condensations in Taurus. The observations were carried out with the 45 m telescope at Nobeyama on the basis of an extensive C18O survey made with the 4 m telescope at Nagoya University. The present survey is based purely on molecular line observations and thus provides the most extensive and uniform sample of high-density condensations. We detected 55 H13CO+ condensations, of which 44 are starless. These starless condensations are compact (R<~0.1 pc) and of high density (>~105 cm-3) and thus are highly probable candidates for protostellar condensations just before star formation. The striking feature of these starless compact condensations is the steep slope of the mass spectrum (dN/dM~M-2.5 for 3.5Msolar
Fukui Yasuo
Kawamura Akiko
Mizuno Akira
Onishi Toshikazu
Tachihara Kengo
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