Star formation in translucent clouds

Details Star formation in translucent clouds Star formation in translucent clouds

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..393..461h&link_type=abstract

The seventh astrophysical conference: Star formation, near and far. AIP Conference Proceedings, Volume 393, pp. 461-464 (1997).

Astronomy and Astrophysics

Astrophysics

Molecular Clouds, H2 Clouds, Dense Clouds, And Dark Clouds, Origin, Formation, Evolution, Age, And Star Formation, Star Formation, Pre-Main Sequence Objects, Young Stellar Objects And Protostars, X-Ray, Visible

Scientific paper

The star-formation capability of three low-extinction translucent molecular clouds (TMCs) at high Galactic latitude is investigated. In an attempt to identify possible PMS stars in and around the clouds we have analyzed ROSAT All-Sky Survey and PSPC pointed observations of these TMCs. Follow-up optical spectroscopy (conducted with the 1.5-m Fred Lawrence Whipple Observatory telescope) of the stellar candidates with mV<15.5 was performed in order to identify standard signatures of pre-main-sequence (PMS) stars. We have found one dozen X-ray bright, lithium rich stars near clouds MBM7 and MBM55. However, all of these may be part of a slightly older stellar population that has retained its lithium. The X-ray sources projected onto cloud MBM40 show no signs of youth and are likely part of the X-ray field-star population.

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