Proceeedings of the Vii Bulgarian-Serbian Astronomical Conference
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ПУБЛИКАЦИЈЕ АСТРОНОМСКОГ ДРУШТВА “РУЂЕР БОШКОВИЋ” Св. 11 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY “RUDJER BOŠKOVIĆ” No. 11 PROCEEEDINGS OF THE VII BULGARIAN-SERBIAN ASTRONOMICAL CONFERENCE Chepelare, 1-4 June 2010 Eds. Milcho K. Tsvetkov, Milan S. Dimitrijević, Katya Tsvetkova, Ognyan Kounchev and Žarko Mijajlović BELGRADE, 2012 UDC 520/524:007(082) ISBN 978-86-89035-01-8 ____________________________________________________________ Св. 11 No. 11 PROCEEDINGS OF THE VII BULGARIAN-SERBIAN ASTRONOMICAL CONFERENCE Chepelare, Bulgaria, June 1-4, 2010 Eds. M. K. Tsvetkov, M. S. Dimitrijević, K. Tsvetkova, O. Kounchev, Ž. Mijajlović Б Е О Г Р А Д 2012 _________________________________________________________________________ _________________________________________________________________________ SCIENTIFIC COMMITTEE LOCAL ORGANIZING COMMITTEE Milcho K. Tsvetkov (Co-chairman) Milcho K. Tsvetkov (Chairman) Milan S. Dimitrijević (Co-chairman) Alexander Antov Tanyu Bonev Katya Tsvetkova Lachezar G. Filipov Ana Borisova Valeri K. Golev Vasil Popov Darko Jevremović Momchil Dechev Ognyan Kounchev Atanas Shtinkov Žarko Mijajlović Nikola Petrov Nadežda Pejović Assia Tsvetkova Luka Č. Popović Daniela Boneva Zoran Simić Krasimira Dimitrova Katya P. Tsvetkova Valeri Golev Orlin Stanchev Ognyan Kounchev Damyan Kalaglarski Cover: Zoran Simić On the back cover: Zoran Simić: Cosmic Dance Text arrangement by computer: Tatjana Milovanov Published and copyright © by Astronomical Society "Rudjer Bošković", Kalemegdan, Gornji Grad 16, 11000 Belgrade and Serbian Astronomical Society, Volgina 7, 11060 Belgrade, Serbia President of the Astronomical Society "Rudjer Bošković": Dr Miodrag Dačić Financially supported by the Ministry for Education and Science of Serbia Internet address: http://www.adrb.org __________________________________________________________________ Production: MONEY SAVER, Rogača - Sopot, Kosmajska 155, in 100 copies CONTENTS PREFACE 7 ПРИВЕТСТВИЕ 9 WELCOME WORDS 10 INVITED PAPERS: Milan S Dimitrijević, Sylvie Sahal-Bréchot, Andjelka Kovačević, Darko Jevremović, Luka Č. Popović and VAMDC consortium (P.I. Marie-Lise Dubernet) VIRTUAL ATOMIC AND MOLECULAR DATA CENTER (VAMDC) AND STARK-B DATABASE 13 Milcho Tsvetkov WIDE-FIELD PLATE DATABASE: DEVELOPMENT AND ACCESS VIA INTERNET IN THE PERIOD JANUARY 2009 - JUNE 2010 25 Valeri Hambaryan BAYESIAN PROBABILITY THEORY IN ASTRONOMY: TIMING ANALYSIS OF THE GIANT FLARE OF SGR 1806-20 41 Darko Jevremović, Milan S. Dimitrijević, Luka Č. Popović, Miodrag Dačić, Vojislava Protić Benišek, Edi Bon, Nataša Gavrilović, Jelena Kovačević, Vladimir Benišek, Andjelka Kovačević, Dragana Ilić, Sylvie Sahal-Bréchot, Katya Tsvetkova, Zoran Simić, Miodrag Malović SERBIAN VIRTUAL OBSERVATORY AND VIRTUAL ATOMIC AND MOLECULAR DATA CENTER (VAMDC) 55 J. Vondrák, C. Ron, V. Štefka, Ya. Chapanov NEW SOLUTION OF EARTH ORIENTATION PARAMETERS 1900-1992 FROM OPTICAL ASTROMETRY, AND ITS LINKING TO ICRF AND ITRF 63 Žarko Mijajlovic, Nadežda Pejović NATIONAL SERBIAN DIGITIZATION PROJECT: ITS ACHIEVEMENTS AND ACTIVITIES 75 Momchil Dechev, Georgi Petrov, Emanuil Atanassov GRID COMPUTING: INFRASTRUCTURE, DEVELOPMENT AND USAGE IN BULGARIA 83 1 Nadežda Pejović TEACHING OF ASTROINFORMATICS AT THE UNIVERSITY OF BELGRADE 89 Saša Simić, Luka Č. Popović GAMMA RAY BURSTS AND ACTUAL DATABASES 97 Ana Borisova, Valeri Hambaryan, Lasko Laskov BAYESIAN PROBABILITY THEORY IN ASTRONOMY: LOOKING FOR STELLAR ACTIVITY CYCLES IN PHOTOMETRIC DATA-SERIES 107 CONTRIBUTED PAPERS Katya Tsvetkova ASTROINFORMATICS FOR THE FLARE STARS IN STELLAR CLUSTERS AND ASSOCIATIONS 127 Jelena Kovačević, Luka Č. Popović and Milan S. Dimitrijević THE Fe II LINES IN AGN SPECTRA 141 N. Kirov, M. Tsvetkov, K. Tsvetkova, D. Kalaglarsky BRASHEAR PLATE CATALOGUES IN THE WIDE-FIELD PLATE DATABASE 147 Andjelka Kovačević, Luka Č. Popović SEARCHING FOR PERIODICITIES IN AGN 153 Yavor Chapanov, Katya Tsvetkova, Milcho Tsvetkov, Jan Vondrák, Cyril Ron, Vojtěch Štefka WIDE-FIELD PLATES OBSERVATIONS OF STARS FROM EARTH ORIENTATION CATALOGS (EOC) 157 Yavor Chapanov, Jan Vondrák, Cyril Ron, Vojtěch Štefka PROPER MOTION ACCURACY OF WFPDB STARS 169 Zoran Simić and Milan S. Dimitrijević STARK-B DATABASE VIRTUAL ATOMIC AND MOLECULAR DATA CENTER (VAMDC) AND DATA FOR WHITE DWARF ATMOSPHERES ANALYSIS 177 Georgi Petrov, Momchil Dechev BG GRID FOR SCIENTIFIC APPLICATIONS. INSTITUTE OF ASTRONOMY APPLICATIONS 181 2 Vasil Kolev, Katya Tsvetkova and Milcho Tsvetkov SINGULAR VALUE DECOMPOSITION OF IMAGES FROM SCANNED PHOTOGRAPHIC PLATES 187 H. Markov, M. Tsvetkov, A. Borisova, N. Petrov WFPDB DEVELOPMENT: RESTORING CHARACTERISTIC CURVE FROM DIGITIZED IMAGES OF SCANNED PHOTOGRAPHIC PLATES 201 Sergei V. Vereshchagin, Natalia V. Chupina, Valery P. Osipenko, Olga B. Dluzhnevskaya and Milcho K. Tsvetkov THE ZVENIGOROD ASTRONOMICAL PLATE COLLECTION PRESENTED IN THE WIDE-FIELD PLATE DATABASE 209 A. Kolev, D. Kalaglarsky, D. Dimov, M. Tsvetkov A DISTRIBUTED COMPUTER SYSTEM CONCEPT OF THE ASTROINFORMATICS PROJECT 219 Momchil Dechev and Milcho Tsvetkov LOCAL NETWORK OF THE PLATE DIGITIZATION LABORATORY OF THE INSTITUTE OF ASTRONOMY WITH NATIONAL ASTRONOMICAL OBSERVATORY 229 POSTER PAPERS Milan S. Dimitrijević, Andjelka Kovačević, Zoran Simć, Sylvie Sahal-Bréchot ON THE STARK BROADENING OF Ar XV SPECTRAL LINES 243 Dušan Marčeta SOME ASPECTS OF CIRCULAR RESTRICTED THREE- BODY PROBLEM FROM DIFFERENTIAL GEOMETRY POINT OF VIEW 247 Galin Borisov and Orlin Stanchev ASSIGNING WCS STANDARDS TO ROZHEN FITS ARCHIVE. PRELIMINARY TESTS 253 Valeri Hambaryan, Milcho Tsvetkov, Katya Tsvetkova, Amalya Poghosyan ON A POSSIBLE CYCLIC ACTIVITY OF THE PLEAIDES FLARE STAR II TAU 259 3 Milan S. Dimitrijević INVESTIGATIONS OF THE INFLUENCE OF COLLISIONAL PROCESSES ON THE ASTROPHYSICAL PLASMA SPECTRA AT ASTRONOMICAL OBSERVATORY (PERIOD 2008-2009) 265 Luka Č. Popović and Dragana Ilić SPECTROSCOPIC INVESTIGATIONS OF EXTRAGALACTIC OBJECTS AT THE ASTRONOMICAL OBSERVATORY IN BELGRADE (2008 – 2009) 285 Žarko Mijajlović, Nadežda Pejović, Stevo Šegan, Goran Damljanović REGULARLY VARYING SOLUTIONS OF FRIEDMAN EQUATION 305 Nadežda Pejović, Žarko Mijajlović, Aleksandar Valjarević, Goran Damljanović SERBIAN ASTRONOMICAL WORKS IN THE VIRTUAL LIBRARY OF THE FACULTY OF MATHEMATICS IN BELGRADE 311 Petya Pavlova, Elena Duncheva, Kostadinka Koleva METHOD FOR TRACKING AND MAPPING A MOTION BASED ON IMAGES OF THE SOLAR CORONA 325 Vladimir A. Srećković, Ljubinko M. Ignjatović, Anatolij A. Mihajlov, Milan S. Dimitrijević ELECTRICAL CONDUCTIVITY OF PLASMAS OF DB WHITE DWARFS ATMOSPHERES 331 Alexander Kolev SOFTWARE APPROACH FOR PARAMETRIZATION OF FITS DATA 337 Sonja Vidojević, Arnaud Zaslavsky, Milan Maksimović, Olga Atanacković, Sang Hoang, Milan Dražić STATISTICAL ANALYSIS OF LANGMUIR WAVES ASSOCIATED WITH TYPE III RADIO BURSTS 343 Yavor Chapanov and Tzvetan Darakchiev SECULAR PLATE DRIFT IN NORTH DIRECTION DETERMINED BY ASTROMETRICAL LATITUDE OBSERVATIONS AT OBSERVATORY PLANA 351 4 Olga B. Dluzhnevskaya, Sergei V. Vereshchagin, Natalia V. Chupina, Valery P. Osipenko THE INASAN ZVENIGOROD OBSERVATORY PLATE COLLECTION 359 Sergei Pirogov COMPUTER MODELS FOR SKY IMAGE ANALYSIS OF THE INASAN ZVENIGOROD OBSERVATORY 363 Svetlana Boeva, Rumen Bachev, Aleksander Antov, Svetla Tsvetkova, Kiril A. Stoyanov LOW STATE OF KR AURIGAE (2008 – 2010) 369 Krasimira Dimitrova Yankova STRUCTURE OF ACCRETION DISK IN THE PRESENCE OF MAGNETIC FIELD 375 Authors’ index 385 Conference photo 386 5 PREFACE The Seventh Bulgarian-Serbian Astronomical Conference was organized by Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences and took place in Grand Hotel Chepelare, situated near to the Rozhen Observatory in the period June 1 - 4, 2010. The conference was dedicated to the topic Astroinformatics and was supported as coorganizers by: Institute of Mathematics and Informatics and Space Research Institute - both of the Bulgarian Academy of Sciences, Department of Astronomy - Faculty of Physics of Sofia University ''St. Kliment Ohridski”, Astronomical Observatory, Faculty of Mathematics and Department of Astronomy of University of Belgrade, Serbian Astronomical Society and Astronomical Society "Rudjer Boškovic". Co-chairmen of the Scientific Organizing Committee were Milcho Tsvetkov and Milan S. Dimitrijević with members - Tanyu Bonev, Lachezar Filipov, Valeri Golev, Darko Jevremović, Ognyan Kounchev, Žarko Mijajlović, Nadežda Pejović, Luka Č. Popović, Katya Tsvetkova and Zoran Simić. In the Local Organizing Committee were Milcho Tsvetkov (Chairman), Nikola Petrov, Katya Tsvetkova, Ana Borisova, Vasil Popov, Momchil Dechev, Atanas Shtinkov, Assia Tsvetkova, Daniela Boneva, Krasimira Dimitrova, Valeri Golev, Orlin Stanchev, Ognyan Kounchev and Damyan Kalaglarsky. Fifty-nine participants attended the conference. From Bulgaria were 30 participants: from the following institutes of the Bulgarian Academy of Sciences - Institute of Astronomy and National Astronomical Observatory, Institute of Mathematics and Informatics, Institute of Information and Communication Technologies, Central Laboratory for Geodesy, as well as from Faculty of Physics, Department of Astronomy of the Sofia University; Defense Advanced Research Institute and Technical University Sofia, branch of Plovdiv. From Serbia were 21 participants: Milan S. Dimitrijević, Luka Ch. Popović, Darko Jevremović, Vladimir Benišek, Aleksandar Valjarević, Dejan Urošević, Bojan Arbutina, Jelena Kovačević, Vojislava Protić-Benišek, Zoran Simić, Milica Andjelić, Marko Stalevski, Saša Simić, Dragana