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2002MNRAS.332..441F - Mon. Not. R. Astron. Soc., 332, 441-455 (2002/May-2)
Hidden subluminous stars among the FAUST UV sources towards Ophiuchus.
FORMIGGINI L., BROSCH N., ALMOZNINO E., BOWYER S. and LAMPTON M.
Abstract (from CDS):
Synthetic photometry of spectral data is performed in order to predict the expected UV emission, on the basis of the photometric information. These results are used along with the Hipparcos/Tycho information, to search for subluminous stars. The comparison of the predicted emission with the FAUST measured magnitudes allows us to select 12 stars as highly probable evolved hot stars. High signal-to-noise spectra are obtained for nine of these stars, and Balmer line profiles are compared with the prediction of atmosphere models and with the spectrum of real stellar atmospheres. Among the nine candidates, six are classified as previously unrecognized sdB stars, and two as white dwarfs. Our result indicates that indeed more bright subluminous stars are still unrecognized in the existing samples.
Abstract Copyright: 2002 Blackwell Science Ltd
Journal keyword(s): subdwarfs - white dwarfs - Galaxy: stellar content - ultraviolet: stars
VizieR on-line data: <Available at CDS (J/MNRAS/332/441): table1.dat table2.dat table4.dat table5.dat>
Nomenclature: Tables 1, 2: [FBA2002] NNN (Nos 1-228).
CDS comments: Some errors in the tables. See http://cdsweb.u-strasbg.fr/viz-bin/Vizie Rfor corrections.
Simbad objects: 244
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