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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The Dwarf project: Eclipsing binaries - precise clocks to discover exoplanets
Astronomische Nachrichten, Volume 333, No. 8, Year 2012
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Description
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. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Authors & Co-Authors
Pribulla, Theodor
Slovakia, Tatranska Lomnica
Astronomical Institute Slovak Academy of Sciences
Vaňko, Martin
Slovakia, Tatranska Lomnica
Astronomical Institute Slovak Academy of Sciences
Ammler-von Eiff, M.
Germany, Camburg
Thüringer Landessternwarte Tautenburg
Andreev, Maksim V.
Russian Federation
Terskol Branch of Institute of Astronomy of the Russian as
Ukraine, Kyiv
National Academy of Sciences of Ukraine
Aslantürk, A.
Turkey, Samsun
Ondokuz Mayis Üniversitesi
Awadalla, Nabil S.
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
Baluďansky, D.
Unknown Affiliation
Bonanno, Alfio M.
Italy, Catania
Osservatorio Astrofisico Di Catania
Božić, H.
Croatia, Zagreb
Sveučilište u Zagrebu, Geodetski Fakultet
Catanzaro, Giovanni
Italy, Catania
Osservatorio Astrofisico Di Catania
Çelik, L.
Turkey, Ankara
Ankara Üniversitesi
Turkey, Mugla
Institute of Theoretical and Applied Physics (itap)
Christopoulou, P. E.
Greece, Rio
University of Patras
Covino, E.
Italy, Naples
Osservatorio Astronomico Di Capodimonte
Cusano, F.
Italy, Bologna
Osservatorio Astronomico Di Bologna
Dimitrov, Dinko P.
Bulgaria, Stara Zagora
Institute of Astronomy Bulgarian Academy of Sciences
Dubovský, Pavol A.
Bulgaria
Vihorlat Observatory
Eigmueller, P.
Germany, Camburg
Thüringer Landessternwarte Tautenburg
Esmer, E. M.
Turkey, Ankara
Ankara Üniversitesi
Turkey, Mugla
Institute of Theoretical and Applied Physics (itap)
Frasca, Antonio
Italy, Catania
Osservatorio Astrofisico Di Catania
Hambálek, Ľ
Slovakia, Tatranska Lomnica
Astronomical Institute Slovak Academy of Sciences
Hanna, Magdy A.
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
Hanslmeier, A.
Austria, Graz
Universität Graz
Kalomeni, Belinda
Turkey, Izmir
Ege Üniversitesi
Kjurkchieva, D. P.
Bulgaria, Shumen
Konstantin Preslavsky University of Shumen
Krushevska, V.
Ukraine, Kyiv
Main Astronomical Observatory Nasu
Kudzej, Igor
Bulgaria
Vihorlat Observatory
Kundra, E.
Slovakia, Tatranska Lomnica
Astronomical Institute Slovak Academy of Sciences
Kuznyetsova, Yu G.
Ukraine, Kyiv
Main Astronomical Observatory Nasu
Lee, J. W.
South Korea, Daejeon
Korea Astronomy and Space Science Institute
Leitzinger, M.
Austria, Graz
Universität Graz
Maciejewski, G.
Poland, Torun
Uniwersytet Mikołaja Kopernika w Toruniu
Moldovan, Dan
Romania, Cluj Napoca
Astronomical Institute of the Romanian Academy
Morais, M. H.M.
Portugal, Aveiro
Universidade de Aveiro
Mugrauer, M.
Germany, Jena
Astrophysikalisches Institut Und Universitäts-sternwarte Jena
Neuhäuser, R.
Germany, Jena
Astrophysikalisches Institut Und Universitäts-sternwarte Jena
Niedzielski, A.
Poland, Torun
Uniwersytet Mikołaja Kopernika w Toruniu
Odert, P.
Austria, Graz
Universität Graz
Ohlert, Johannes M.
Germany, Steinfurt
Fachhochschule Münster - Abteilung Steinfurt
Germany
Michael Adrian Observatory
Özavci, I.
Turkey, Ankara
Ankara Üniversitesi
Turkey, Mugla
Institute of Theoretical and Applied Physics (itap)
Papageorgiou, A.
Greece, Rio
University of Patras
Parimucha, Š
Slovakia, Kosice
Pavol Jozef Šafárik University in Košice
Poddaný, S.
Czech Republic, Prague
Charles University
Czech Republic, Prague
Štefánik Observatory
Pop, A.
Romania, Cluj Napoca
Astronomical Institute of the Romanian Academy
Raetz, M.
Unknown Affiliation
Raetz, S.
Germany, Jena
Astrophysikalisches Institut Und Universitäts-sternwarte Jena
Romanyuk, Ya
Ukraine, Kyiv
National Academy of Sciences of Ukraine
Ruždjak, Domagoj
Croatia, Zagreb
Sveučilište u Zagrebu, Geodetski Fakultet
Schulz, J.
Germany, Kirchheim Unter Teck
Volkssternwarte Kirchheim Arnstädter Straße 49
Şenavci, H. V.
Turkey, Ankara
Ankara Üniversitesi
Turkey, Mugla
Institute of Theoretical and Applied Physics (itap)
Srdoč, Gregor
Croatia
Private Observatory
Szalai, T.
Hungary, Szeged
Szegedi Tudományegyetem Szte
Székely, P.
Hungary, Szeged
Szegedi Tudományegyetem Szte
Sudar, D.
Croatia, Zagreb
Sveučilište u Zagrebu, Geodetski Fakultet
Tezcan, C. T.
Turkey, Ankara
Ankara Üniversitesi
Turkey, Mugla
Institute of Theoretical and Applied Physics (itap)
Törün, M. E.
Turkey, Ankara
Ankara Üniversitesi
Turkey, Mugla
Institute of Theoretical and Applied Physics (itap)
Turcu, V.
Romania, Cluj Napoca
Astronomical Institute of the Romanian Academy
Vince, Oliver
Serbia, Belgrade
Astronomical Observatory
Zejda, Miloslav
Czech Republic, Brno
Masaryk University
Statistics
Citations: 58
Authors: 58
Affiliations: 34
Identifiers
Doi:
10.1002/asna.201211722
ISSN:
00046337
e-ISSN:
15213994