Naslov
A second stellar colour locus: a bridge from white dwarfs to M stars

Autori
Smolčić, V. ; Ivezić, Z. ; Knapp, G.R. ; Lupton, R.H. ; Pavlovski, K. ; Ilijić, S. ; Schlegel, D. ; Gunn, J.E. ; Strauss, M.A.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Workshop 'Spectroscopically and Spatially Resolving the Components of the Close Binary Stars', Abstract Book / - , 2003, 35-35

Skup
International Workshop 'Spectroscopically and Spatially Resolving the Components of the Close Binary Stars'

Mjesto i datum
Dubrovnik, Hrvatska, 20.10.2003. - 24.10.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
white dwarfs; M stars; color indices; SDSS survey

Sažetak
We report the discovery of a locus of stars in the SDSS g-r vs. u-g color-color diagram that connects the colors of white dwarfs and M dwarfs. While its contrast with respect to the main stellar locus is only about 1:2300, this previously unrecognized feature includes 863 stars from SDSS Data Release 1. the position and shape of the feature is in good agreement with predicitions of a simple binary star model that consists of a white dwarf and an M dwarf, with the components' luminosity ratio controlling the position along this binary system locus. SDSS DR1 spectra for 47 of these objects strongly support this model.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA