Observations of recently recognized candidate Herbig Ae/Be stars

Details Observations of recently recognized candidate Herbig Ae/Be stars Observations of recently recognized candidate Herbig Ae/Be stars

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...347..137m&link_type=abstract

Astronomy and Astrophysics, v.347, p.137-150 (1999)

Astronomy and Astrophysics

Astrophysics

8

Techniques: Photometric, Techniques: Spectroscopic, Stars: Emission-Line, Be, Stars: Planetary Systems, Stars: Pre-Main Sequence

Scientific paper

The results of multicolor photometric and low-resolution spectroscopic observations of 9 Herbig Ae/Be candidate stars are reported. This sample includes two newly recognized objects, MQ Cas and BD+11degr829 , which were found by means of cross-correlation of the IRAS Point Source Catalogue and the catalogue of the galactic early-type emission-line stars (Wackerling \cite{wack}). Near-IR excesses were detected in two stars (AS 116 and BD+11degr829 ) for the first time. Algol-type variability, which is not common in Herbig Ae/Be stars, was detected in MQ Cas and V1012 Ori. Spectral types are determined for MQ Cas, GSC 1811-0767, HDE 244604, BD+11degr829 , V1012 Ori, AS116, AS117, and HDE 290380 from low-resolution spectroscopy. Analysis of our and previously published data suggests that 8 of the 9 objects are pre-main-sequence stars, while the last one, Hen 938, is more likely a B[e] supergiant. Based on observations collected at the Astrophysical National Laboratory (LNA -- Brazil), the South--African Astronomical Observatory, the Dark Sky Observatory (USA), and the Tien--Shan Observatory (Kazakhstan)

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