Ultra High Resolution Spectroscopy of K I and CA II in B5

Details Ultra High Resolution Spectroscopy of K I and CA II in B5 Ultra High Resolution Spectroscopy of K I and CA II in B5

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.6508a&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #65.08; Bulletin of the American Astronomical Society, Vol. 30, p.1341

Astronomy and Astrophysics

Astronomy

Scientific paper

We present ultrahigh resolution spectroscopic observations of K I (R=350,000) and Ca II (R=130,000) towards stars in the molecular cloud B5. Even though this is a kinematically simple sightline, intersecting only one molecular cloud, the lineshapes are still complex. Further, the relative velocity structure between tracers, such as mm-wave CO, 21cm HI and optical absorption lines show significant offsets. We show decompositions of the optical lines and discuss the variation in the column density ratios K I/Ca II for the resolved velocity components.

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