The exciting star of HH 57

Details The exciting star of HH 57 The exciting star of HH 57

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...302l..55c&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 302, March 15, 1986, p. L55-L58.

Astronomy and Astrophysics

Astrophysics

11

Pre-Main Sequence Stars, Stellar Envelopes, Stellar Spectra, Brightness Temperature, Cosmic Dust, Planetary Nebulae

Scientific paper

The authors provide the first spectral classification for the exciting star of HH 57. The star is an F8 III and suffers about 5 mag of visual extinction, far greater than that toward the HH 57A knot, only a few arc seconds away. This difference supports the previous identification of a flattened geometry for the circumstellar dust around this star. Using IRAS photometry the authors determine a distance of 940 pc to HH 57 by bolometrically matching the observed luminosity of the star to those of FU Ori and V1057 Cyg.

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