The distance to the Lupus star formation region

Details The distance to the Lupus star formation region The distance to the Lupus star formation region

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105..571h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 2, p. 571-575.

Astronomy and Astrophysics

Astronomy

54

Astrometry, Astronomical Photometry, Astronomical Spectroscopy, H Alpha Line, Pre-Main Sequence Stars, Star Formation, Far Infrared Radiation, Massive Stars, Stellar Mass, T Tauri Stars

Scientific paper

We use photometric and spectroscopic observations of 31 field stars in Lupus to determine the distance to the dark clouds. A plot of extinction vs distance for the field stars indicates a distance of 140 +/- 20 pc to the Lupus clouds, which is at the lower end of the range defined by previous estimates. One of the 'field' stars has weak H-alpha emission and a far-infrared excess, indicating that it is a previously uncataloged premain-sequence star.

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