Szoros kettőscsillagok vizsgálata  Page description

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Details of project

  
Identifier
34551
Type K
Principal investigator Patkós, László
Title in Hungarian Szoros kettőscsillagok vizsgálata
Panel Physics 1
Department or equivalent Konkoly Thege Miklós Astronomical Institute (Research Centre for Astronomy and Earth Sciences)
Starting date 2001-01-01
Closing date 2005-12-31
Funding (in million HUF) 1.954
FTE (full time equivalent) 0.00
state closed project





 

Final report

  
Results in Hungarian
Az OTKA T034551 kutatas fo eredmenyei. Szoros kettoscsillagok fotometriai vizsgalatat vegeztuk. Fotoelektromos minimum idopontokat kozoltunk (5 publikacio). Uj periodust hataroztunk meg az AQ Comae-ra (1 publikacio). Uj modszert javasoltunk a W UMa tip. csillagokon alpulo tavolsagmeghatarozasra (3 publikacio). Vizsgaltuk a V842 Her, es a V861 Her periodus, es fenygorbevaltozasait (1, illetve 4 publikacio). Vizsgaltuk a GSC 3822-1056 overcontact kettoscsillagot. Tanulmanyoztuk a periodusvaltozasokat. es meghataroztuk a rendszerparametereket.(1 publikacio). Vizsgaltuk az IM Aur kettos rendszer periodusvaltozasait.Kimutattuk egy harmadik komponens jelenletet (2 publikacio). Foltmodellezest vegeztunk az SV Cam aktiv kettoscsillagra (2 publikacio). Vizsgaltuk az SV Cam periodusvaltozasait is (1 publ.) Vizsgaltuk a TT Arietis kataklizmikus valtozocsillagot. Tobbszor meghataroztuk a szuperhump periodusokat. QPO-kat mertunk, illetve hataroztunk meg (2 publikacio). Legujabb mereseink szerint a TT Ari 1997-2004 pozitiv szuperhump allapota befejezodott. Kitorest figyeltunk meg. Igen kis amplitudoval mar latszik a negativ szuprhump jellegu fenyvaltozas. (1 publikacio). Csillagaszattorteneti munkakat kozoltunk (2 publikacio). W UMa tipusu csillagok eseteben vizsgaltuk a komponensek kozotti energiaaramlast, illetve cseret.(1 publikacio). Kulonfele nemzetkozi tudomanyos konferenciakon tartottunk eloadasokat, illetve allitottunk ki posztert.(6 eloadas, 6 poszter)
Results in English
Main results of OTKA T 034551 We ivestgated close binary stars. We measured photoelectric times of minima (5 publications). We determined new period for AQ Comae (1 publ.). We proposed a new ditance determination method for W UMa stars (3 publ.). We investigated the system V842 her and V 861 Her for period and lightcurve variations. (1 and 4 publications). We studied the overcontact system GSC 3822-1056. We studied the period changes, and determined the system parameters (1 publ.). We investigated the period changes in the system IM Aur. We established the presence of a third body in the system (2 publ.). We did spot model determinations for the system SV Camelopardalis (2 publ.). We investigated period changes in the system SV Cam (1 publ.). We measured the cataclysmic variable TT Arietis. We determined different superhump periods. We measured QPOs (2 publ.). According to our newest observations the positive superhump status of TT Ari Has ended. We obseved an outburst in the system. We observed (with small amplitude) the new negative superhump variations (1 publ.). We presented papers in the field of history of astronomy (2 publ.). We investigated energy transfer processes in W UMa systems (1 publ.). We took part at different international astronomical conferences. We presented 6 oral lectures and 6 posters.
Full text http://real.mtak.hu/43/
Decision
Yes





 

List of publications

  
Csizmadia, Sz., Patk\\\'os, L., Mo/\'or, A., K\\\''onyves, V.: Photometric study of the contact binary star V861 Herculis, Astronomy and Astrophysics, v.417, p.745-750, 2004
Csizmadia Sz Borkovits T.: Improved Ephemeris for AQ Com, Inf. Bull. Var. Stars 5095, p:1-3, 2001
Borkovits T, Biro I.B, Hegedus T, Csizmadia Sz, Kovacs T, Kospal A, Pal A, Konyves V, Moor A: New Times of Minima of Eclipsing Variables, Inf. Bull. Var Stars 5313, 2002
Csizmadia Sz, Zhou A.Y, Konyves V, Varga Z, Sandor Zs: Times of Minima of Eclipsing Binaries, Inf. Bull. Var. Stars 5230 p:1-4, 2002
Csizmadia Sz, Patkos L: A New Distance Determination with W UMa Star, Publ. of Astr. Dept. Eotvos Un. Vol. 12. p 111, 2002
Csizmadia Sz, Patkos L: The W UMa Star V 861 Her, Proc. Intern. Conf on Variable Star Research (ed.: M. Zejda) p18-21, 2002
I.L. Andronov, K.A. Antoniuk, T. Apeltauer, L.L. Chinarova, R. Galis, L.Hric, S.V. Kolesnikov, P.G. Niarchos, L. Patkos,D.N. Shakhovskoy, N.M. Shakhovskoy:: TT Arietis : Unprecedented Switching from Negative to Positive Superhumps, Odessa Astr. Publ. Vol. 12. P: 157-159, 2002
Csizmadia Sz, Biro I.B, Borkovits T: Photometric Study of the over-contact binary star GSC 3822-1056, Astronomy and Astrophysics V 403, p:637-643,, 2003
I.L.Andronov, K.A.Antoniuk, P.Augusto, A.V.Baklanov, L.L.Chinarova, D.Chochol, Y.S.Efimov, K.Gazeas, A.V.Halevin, Y.Kim, S.V.Kolesnikov, L.S.Kudashkina, V.I.Marsakova, P.A.Mason, P.G.Niarchos, D.Nogami, N.I.Ostrova, L.Patkos, E.P.Pavlenko, N.M. Shakovskoy, J. Tremko, A.V. Yuschenko and S.Zola: Inter-longitude Astronomy Project: Some Results and Perspectives, Astronomical and Astrophysical Transactions Vol. {\\bf 22}, pp.793-798, 2002
Borkovits, Tamas; Biro, Imre Barna; Hegedus, Tibor; Csizmadia, Szilard; Szabados, Laszlo; Pal, Andras; Posztobanyi, Kalman; Konyves, Vera; Kospal, Agnes; Csak, Balazs; Meszaros, Szabolcs: New Times of Minima of Eclipsing Binary Systems, Inf. Bull. Var. Stars 5434, 2003
Sz. Csizmadia et al.: Spot activity in V 861 Her, Jenam 2003 New Deal in Eur. Astr. (poszter), 2003
Borkovits T et al.: Analysis of the dynamically active close triple system IU Aurigae, JENAM 2003 New Deal in European Astronomy (poszter), 2003
Klagyvik P. Csizmadia Sz.: Distance to W UMa Stars, pectroscopically and Spatially Res. Comp. of Close Bin. Stars (poszter), 2003
Patk\\\'os, L., Csizmadia, Sz.: The eclipsing active star SV Camelopardalis, Astronomische Nachrichten, Vol. 325, Issue 5, p.:424-426, 2004
Borkovits T Biro I. B. Csizmadia Sz. Patkos L. Hegedus T. Pal A. Kospal A. Klagyvik P.: New Times of Minima of Eclipsing Binary Systems, Inf. Bull. Var. Stars 5579, 2004
Borkovits T. Patkos L. Csizmadia Sz.: Improved Period Analysis of SV Cam, Astron. Soc. of the Pacific Conf. Ser. Vol. 318 , p245-, 2004
Klagyvik P. Csizmadia Sz.: Distance to W UMa stars, Astron. Soc. of the Pacific Conf. Ser. Vol. 318 p: 195- 197, 2004
Klagyvik P. Csizmadia Sz.: Contact binary stars as standard candles, Publ. of the Astr. Dept. of the Eotvos Univ. Vol. 14. p.: 303-308, 2004
Csizmadia Sz. Molnar A.: The WUMa Star V861 Herculis, Astronomy and Astrophysics, 2002
Csizmadia, Sz.,: V842 Herculis: A WUMa star with constant period, Information Bulletin on Variable Stars No 5191, 2001
Csizmadia Sz, Molnár A.:: The WUMa Star V861 Herculis, Publ. Astr. Dept. of EOTVOS Uni. 11, p11., 2001
Csizmadia, Sz., Patkós, L., MoÓr, A., Könyves, V.: Photometric study of the contact binary star V861 Herculis, Astronomy and Astrophysics, v.417, p.745-750, 2004
Csizmadia Sz: The WUMa Star V861 Herculis, Proc. Int. Conf. on Variable Star Research (ed: M. Zejda) p.:18-21., 2002
Csizmadia Sz., Patkós László: The WUMa Star V861 Herculis, Proc. Int. Conf. on Variable Star Research (ed: M. Zejda) p.:18-21., 2002
Patkós L. Csizmadia Sz.:: SV Cam V B differential photometry, VizieR On-line Data Catalog: J other AN 325.424., 2004
Patkós, L.:: The Pasquich affair, Acta Historica Astronomiae Vol. 24 p.: 182-187,, 2004
Csiymadia, Sz.,: Physical processes in contact binary stars: mass and luminosity transfer, Astrophysics and Space Science Library 296, 185, 2005
Borkovits, T.,Patkós L., Csizmadia Sz.:: Improved period Analysis of SV Camelopardalis, Spectroscopically and Spatially Resolving the components of Close Binaries: (poszter), 2003
Csizmadia Sz, Klagyivik P.: Distance to W UMa Stars, Spectroscopically and Spatially Resolving the components of close binary Stars (poszter), 2002
Borkovits, T., Csizmadia Sz, Patkós, L.: A Library of the lightücurve solutions of eclipsing Binary Stars, Close Binaries in the 21th century (poszter), 2005
Csizmadia Sz, Kovari Zs, Klagyivik P.: H alpha photometry of two contact binary stars, Close Binaries in the 21th century (poszter), 2005
Biro I.B., Borkovits T Csizmadia Sz. Hegedus T. Klagyivik P. Kiss Z.T. Kovacs T. Lampens P. Patkós L. Pal A. Regály Zs. van Couteren P.: New Times of Minima of Eclipsing Binary Systems and maxima of SX Phe stars, Inf. Bull. Var. Stars 5684, 2006
Borkovits T Csizmadia Sz. Hegedus T. Biro I.B., Sándor Zs., Opitz A.:: Complex period variations in the Binary System IM Aurigae, Astronomy and Astrophys, 392, p: 895-907, 2002
Borkovits T Csizmadia Sz.:: Period variations in IM Aurigae, PADEU Vol 12, 105-110, 2002
Csizmadia Sz. Patkós L. Moor A. Konyves V.:: V(RI)C differential photometry of V861 Her, VizieR On-line Data CatalogJA A417 745., 2004
Andronov, I.L., Burwitz V., Chinarova L.L., Gazeas K., Kim, Z., Niarchos P.G. Ostrova, N.I., Patkós, L., Yoon, J.N.:: TT Ari : Out fom the Positive Superhump phase, Information Bulletin on Variable Stars 5664, 2005
Patkós, L.:: Possibilities for Middle -European Astronomy: One hundred years later, 100 Years of Observational Astronomy and Astrophysics(ed. C. Sterken), 2005




 

Events of the project

  
2012-01-04 13:06:24
Kutatóhely váltás
A kutatás helye megváltozott. Korábbi kutatóhely: (MTA Csillagászati és Földtudományi Kutatóközpont), Új kutatóhely: Konkoly Thege Miklós Csillagászati Intézet (MTA Csillagászati és Földtudományi Kutatóközpont).



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