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The Dwarf project : Eclipsing binaries - precise clocks to discover exoplanets (CROSBI ID 188211)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Pribulla , T. ; Vaňko, M. ; Ammler-von Eiff, M. ; Andreev, M. ; Aslantürk, A. ; Awadalla, N. ; Baluďanský, D. ; Bonanno, A. ; Božić, Hrvoje ; Catanzaro, G. et al. The Dwarf project : Eclipsing binaries - precise clocks to discover exoplanets // Astronomische Nachrichten, 333 (2012), 8; 754-766. doi: 10.1002/asna.201211722

Podaci o odgovornosti

Pribulla , T. ; Vaňko, M. ; Ammler-von Eiff, M. ; Andreev, M. ; Aslantürk, A. ; Awadalla, N. ; Baluďanský, D. ; Bonanno, A. ; Božić, Hrvoje ; Catanzaro, G. ; Çelik, L. ; Christopoulou, P. E. ; Covino, E. ; Cusano, F. ; Dimitrov, D. ; Dubovský, P. ; Eigmueller, P. ; Esmer, E. M. ; Frasca, A. ; Hambálek, Ľ. ; Hanna, M. ; Hanslmeier, A. ; Kalomeni, B. ; Kjurkchieva, D. P. ; Krushevska, V. ; Kudzej, I. ; Kundra, E. ; Kuznyetsova, Yu. ; Lee, J. W. ; Leitzinger, M. ; Maciejewski, G. ; Moldovan, D. ; Morais, M. H. M. ; Mugrauer, M. ; Neuhäuser, R. ; Niedzielski, A. ; Odert, P. ; Ohlert, J. ; Özavcı, İ. ; Papageorgiou, A. ; Parimucha, Š. ; Poddaný, S. ; Pop, A. ; Raetz, M. ; Raetz, S. ; Romanyuk, Ya. ; Ruždjak, Domagoj ; Schulz, J. ; Şenavcı, H. V. ; Srdoc, G. ; Szalai, T. ; Székely, P. ; Sudar, Davor ; Tezcan, C. T. ; Törün, M. E. ; Turcu, V. ; Vince, O. ; Zejda, M.

engleski

The Dwarf project : Eclipsing binaries - precise clocks to discover exoplanets

We present a new observational campaign, Dwarf, aimed at detection of circumbinary extrasolar planets using the timing of the minima of low-mass eclipsing binaries. The observations will be performed within an extensive network of relatively small to medium-size telescopes with apertures of ∼20-200 cm. The starting sample of the objects to be monitored contains (i) low-mass eclipsing binaries with M and K components, (ii) short-period binaries with a sdB or sdO component, and (iii) post-common-envelope systems containing a WD, which enable to determine minima with high precision. Since the amplitude of the timing signal increases with the orbital period of an invisible third component, the timescale of the project is long, at least 5-10 years. The paper gives simple formulas to estimate the suitability of individual eclipsing binaries for the circumbinary planet detection. Intrinsic variability of the binaries (photospheric spots, flares, pulsation etc.) limiting the accuracy of the minima timing is also discussed. The manuscript also describes the best observing strategy and methods to detect cyclic timing variability in the minima times indicating the presence of circumbinary planets. First test observations of the selected targets are presented.

binaries: eclipsing; extrasolar planets: photometry

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Podaci o izdanju

333 (8)

2012.

754-766

objavljeno

0004-6337

10.1002/asna.201211722

Povezanost rada

Fizika

Poveznice
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