SIMBAD references

2013MNRAS.435.2494K - Mon. Not. R. Astron. Soc., 435, 2494-2500 (2013/November-1)

Spectroscopy of the variable K-dwarf UNSW-V-760: is it a pre-main-sequence pulsator ?

KOEN C., GRAY R.O., KAWALER S. and CRAWFORD S.M.

Abstract (from CDS):

The star UNSW-V-760 is a known variable, showing both flares and two non-sinusoidal periodicities. Availability of high signal-to-noise spectra reported in this paper has enabled a revision of the spectral type of this star to K3 IV-Vk. The star is a very rapid rotator (vsini ∼ 140km/s), and the abundance of lithium appears to be enhanced. 48 radial velocity measurements were obtained over the course of three successive nights. These may show the same two frequencies detected photometrically, but there is some uncertainty in the interpretation. Application of pulsation theory suggests that photometric frequencies could be explained as low ℓ pulsation modes, but an excitation mechanism remains to be found.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): stars: individual: UNSW-V-760 - stars: pre-main-sequence - stars: variables: T Tauri, Herbig Ae/Be

Status at CDS:  

Simbad objects: 5

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2020.06.03-02:59:55

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