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Standard UBV photometry and improved physical properties of TW Dra (CROSBI ID 206787)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Božić, Hrvoje ; Nemravova, J. ; Harmanec, P. Standard UBV photometry and improved physical properties of TW Dra // Information bulletin on variable stars, 6086 (2013), 1; 1-8

Podaci o odgovornosti

Božić, Hrvoje ; Nemravova, J. ; Harmanec, P.

engleski

Standard UBV photometry and improved physical properties of TW Dra

During one night in 2005 and 21 nights in 2011 we secured a new complete light curve of the semi-detached eclipsing binary TW Dra, for first time reduced to the standard UBV system. We analysed these observations and combined them with recently published high-S/N spectroscopy to derive improved physical properties of the system. Our individual observations are provided in electronic form for more detailed analyses by interested investigators. We find that the primary of the eclipsing pair is either slightly evolved away from the main sequence or has a pseudophotosphere, which mimics a later spectral type. This speculation should be further investigated via dedicated spectroscopic studies.

photometry

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Podaci o izdanju

6086 (1)

2013.

1-8

objavljeno

0374-0676

1587-2440

Povezanost rada

Fizika

Indeksiranost