2026
#01
Title: Transient high optical frequency oscillations and Starquakes on Flare Stars
Date: 03/2026
Authors: Contadakis, Michael E.
Publication: A journay in Earth’s gravity field investigation,Honorary volume for Prof EmeritusIlias Tziavos, Ziti Edition Thessaloniki Greece,ISBN 978-960-243-760-5, pp. 309-321 2026
2025
#01
Title: Transient high frequency optical oscillations and Starquakes on Flare Stars
Date: 06/2025
Authors: Contadakis, Michael E.
Publication: The 17th Hellenic Astronomical Conference, held 30 June -2 July, 2025 in Patras, Greece. Online at https://helas.gr/conf/2025/, id. 8
2023
#01
Title: Starquakes on Flare stars
Date: 06/2023
Authors: Contadakis, Michael ; Arabelos, Demeter ; Avgoloupis, Stavros, J. ; Seiradakis, John-Hugh ; Papantoniou, Christos
Publication: 16th Hellenic Astronomical Society Conferencew, held 26-28 July, 2023 in Athes, id. 4.12
2021
#01
Title: Starquakes on the red dwarf UV Ceti
Date: 07/2021
Authors: Contadakis, Michael ; Arabelos, Demeter ; Avgoloupis, Stavros, J. ; Seiradakis, John-Hugh ; Papantoniou, Christos
Publication: Book of Abstract of the 15 Conference of Hellenic Astronomical Society,p.87
2019
#01
Title: Detection of starquakes on the red dwarf YZ CMin
Date: 07/2019
Authors: Contadakis, Michael E. ; Avgoloupis, Stavros I. ; Seiradakis, John H. ; Papantoniou, Christos
Publication: The 14th Hellenic Astronomical Conference, held 8-11 July 2019, in Volos, Greece. Abstract Book. p. 51-51
2017
#01
Title: Starquakes on the red dwarf EV Lac
Date: 07/2017
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Papantoniou, Ch.
Publication: The 13th Hellenic Astronomical Conference General Assembly, held 3-8 July, 2017, session id. 4.1
2016
#01
Title: Detection of starquakes on the red dwarf AD Leo
Date: 07/2016
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Papantoniou, Ch.
Publication: 2016 EWASS, Symposium S17 ,Magnetic Helicity in Sun and Stars ,No63, 15 pages
2015
#01
Title: Detection of starquakes on magnetically active red dwarfs
Date: 07/2015
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Papantoniou, Ch.
Publication: 2015,12th Hel.A.S Conference Thessaloniki, 28 June-2 July, CONTRIBUTED POSTER,S4,5,1
2013
#03
Title: Transient high frequency optical oscillations on red dwarfs
Date: 09/2013
Authors: Contadakis, M. E.
Publication: The 11th Hellenic Astronomical Conference, held 8-12 September, 2013 in Athens, Greece. Online at http://www.helas.gr/conf/2013/, pp.43-43
#02
Title: Transient high frequency optical oscillations on two weak flares of the red dwarf V390 Auri
Date: 05/2013
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H.
Publication: Astronomical and Astrophysical Transactions, ISSN 1055-6796,2013, Vol. 28, Issue 1, 9-14
#01
Title: Magnetic activity in stars on the giant branches: Twenty years of observations
Date: 2013
Authors: Konstantinova-Antova, R. ; Auríere, M. ; Charbonnel, C. ; Wade, G. ; Kolev, D. ; Antov, A. ; Tsvetkova, S. ; Schröder, K.-P. ; Drake, N. A. ; Petit, P. ; de Medeiros, J.-R. ; Lébre, A. ; Zhilyaev, B. ; Verlyuk, I. ; Svyatogorov, O. ; Gershberg, R. E. ; Lovkaya, M. ; Bogdanovski, R. ; Stateva, I. ; Cabanac, R. ; Avgoloupis, S. ; Contadakis, M. E. ; Seiradakis, J.
Publication: Bulgarian Astronomical Journal, Vol. 19, p. 14
2012
#03
Title: Detection of transient high frequency optical oscillations of the flare star YZ CMin
Date: 08/2012
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H.
Publication: Astronomische Nachrichten, Vol.333, Issue 7, p.583
#02
Title: Synchronous network of distant telescopes
Date: 03/2012
Authors: Zhilyaev, B. ; Svyatogorov, O. ; Verlyuk, I. ; Andreev, M. ; Sergeev, A. ; Lovkaya, M. ; Antov, A. ; Konstantinova-Antova, R. ; Bogdanovski, R. ; Avgoloupis, S. ; Seiradakis, J. ; Contadakis, M. E.
Publication: Bulgarian Astronomical Journal, Vol. 18, No. 1, p. 62
#01
Title: Transient high frequency optical oscillations on a week flare of the red dwarf UV Cet
Date: 01/2012
Authors: Contadakis, M. E.
Publication: 10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Iossif Papadakis and Anastasios Anastasiadis., pp.27-28
2011
#01
Title: Transient high frequency optical oscillations on three flares of the red dwarf AD Leonis
Date: 07/2011
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H.
Publication: JENAM 2011, European Week of Astronomy and Space Science, Book of Abstracts, id.74-74
2010
#03
Title: Transient High Frequency Optical Oscillations of the Red Dwarf AD Leonis
Date: 07/2010
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H.
Publication: Proceedings of the 9th International Conference of the Hellenic Astronomical Society, proceedings of a conference held 20-24 September 2009 in Athens, Greece. Edited by Kanaris Tsinganos, Despina Hatzidimitriou, and Titos Matsakos. San Francisco: Astronomical Society of the Pacific, 2010., p.189
#02
Title: Transient high frequency optical oscillations of the Flare star AD Leonis
Date: 2010
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H.
Journal: The Apple of Knowledge – In honour of Professor Emeritus Demetrius N. Arabelos. Aristotle University of Thessaloniki, ISBN 978-960-243-674-5, p. 459-474.
#01
Title: The Apple of Knowledge
Date: 2010
Authors: Contadakis, M. E. ; Kaltsikis, Ch. ; Spatalas, S. ; Tokmakidis, C. ; Tziavos, I. N.
Publication: The Apple of Knowledge, Aristotle University of Thessaloniki,ISBN 978-960-243-674-5
2009
#01
Title: Terrestrial and Stellar Environment
Date: 2009
Authors: Arabelos, D. N. ; Contadakis, M. E. ; Kaltsikis, Ch. ; Spatalas, S. D.
Publication: Terrestrial and Stellar Environment, Aristotle University of Thessaloniki,ISBN 978-960-243-665-3
2007
#03
Title: A method to detect weak transient optical oscillations in stellar photometry
Date: 09/2007
Authors: Contadakis M.
Publication: 2007 8th International Conference of Hel.A.S.,Thassos Greece,Session 5, PS2
#02
Title: Transient high frequency optical oscillations of the red dwarf YZ CMin
Date: 09/2007
Authors: Contadakis, Michael E. ; Avgoloupis, Stavros J. ; Seiradakis, John. H.
Publication: 8th International Conference of Hel.A.S., Thassos Greece, Session,2,9
#01
Title: Fast colorimetry of the flare star EV Lacertae from UBVRI observations in 2004
Date: 04/2007
Authors: Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Svyatogorov, O. A. ; Verlyuk, I. A. ; Kaminsky, B. ; Andreev, M. ; Sergeev, A. V. ; Gershberg, R. E. ; Lovkaya, M. N. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Contadakis, M. E. ; Antov, A. P. ; Konstantinova-Antova, R. K. ; Bogdanovski, R.
Publication: Astronomy and Astrophysics, Volume 465, Issue 1, April I 2007, pp.235-240
2006
#03
Title: Further investigation of the high frequency optical oscillations during the flare phase of the red dwarf EV Lac
Date: 08/2006
Authors: Contadakis, M. ; Avgoloupis, S. ; Seiradakis, J.
Publication: RECENT ADVANCES IN ASTRONOMY AND ASTROPHYSICS: 7th International Conference of the Hellenic Astronomical Society. AIP Conference Proceedings, Volume 848, pp. 324-332 (2006).
#02
Title: High-frequency optical oscillation during the flare phase of the red dwarf EV Lac
Date: 01/2006
Authors: Contadakis, M. ; Avgoloupis, S. ; Seiradakis, J.
Publication: 2006, the Many Scales in the Universe, JENAM 2004 Astrophysics Reviews, ISBN.10 1-4020-4526-3(e-book),3p14
#01
Title: High-frequency optical oscillation during the flare phase of the red dwarf EV Lac
Date: 01/2006
Authors: Contadakis, M. ; Avgoloupis, S. ; Seiradakis, J.
Publication: 2006, Proceedings, Joint European and National Astronomical Meeting (JENAM), Granada 2004, 1-8, id.1
2005
#01
Title: The flare activity of V390 Aur: First results of an international collaboration
Date: 01/2005
Authors: Konstantinova-Antova, R. K. ; Antov, A. P. ; Zhilyaev, B. E. ; Verlyuk, I. A. ; Romaniuk, Ya. O. ; Svyatogorov, O. A. ; Avgoloupis, S. ; Seiradakis, J. H. ; Contadakis, M. E.
Publication: Astronomische Nachrichten, Vol.326, Issue 1, p.38-42
2004
#04
Title: Detection of high-frequency optical oscillation during the flare phase of EV Lac in 1999
Date: 06/2004
Authors: Contadakis, M. E. ; Avgoloupis, S. ; Seiradakis, J. ; Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Verlyuk, I. A. ; Svyatogorov, O. A. ; Khalack, V. R. ; Sergeev, A. V. ; Konstantinova-Antova, R. K. ; Antov, A. P. ; Bachev, R. S. ; Alekseev, I. Y. ; Chalenko, V. E. ; Shakhovskoy, D. N.
Publication: Astronomische Nachrichten, Vol.325, Issue 5, p.427-432
#03
Title: Intensity Oscillations During a flare on II Peg
Date:01/2004
Authors: Avgoloupis, S. ; Seiradakis, J. H. ; Mathioudakis, M. ; Bloomfield, D. Shaun ; McAteer, J.
Publication: Hellenic Astronomical Society: Proceedings of the Sixth Astronomical Conference, held at Penteli, Athens, 15-17 September, 2003. Edited by Paul Laskarides. Published by the Editing Office of the University of Athens, Athens, Greece, 2004, p.120
#02
Title: Detection of High-Frequency Optical Oscillation during the flare phase of EV Lac in 1999
Date: 01/2004
Authors: Contadakis, M. E. ; Avgoloupis, S. ; Seiradakis, J. ; Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Verlyuk, I. A. ; Svyatogorov, O. A. ; Khalack, V. R. ; Sergeev, A. V. ; Konstantinova-Antova, R. K. ; Antov, A. P. ; Bachev, R. S. ; Alekseev, I. Y. ; Chalenko, V. E. ; Shakhovskoy, D. N.
Publication: Hellenic Astronomical Society: Proceedings of the Sixth Astronomical Conference, held at Penteli, Athens, 15-17 September, 2003. Edited by Paul Laskarides. Published by the Editing Office of the University of Athens, Athens, Greece, 2004, p.119
#01
Title: HST, EUVE and Ground-Based Observations of Flares on AD Leo
Date: 01/2004
Authors: Allred, J. C. ; Hawley, S. L. ; Johns-Krull, C. M. ; Fisher, G. H. ; Abbett, W. P. search by orcid ; Avgoloupis, S. I. ; Seiradakis, J. H.
Publication: Stars as suns : activity, evolution and planets, Proceedings of the 219th symposium of the International Astronomical Union held during the IAU General Assembly XXV, Sydney, Australia, 21-25 July 2003. Edited by A.K. Dupree and A.O. Benz. San Francisco, CA: Astronomical Society of the Pacific (ASP), 2004. Available on companion CD-ROM., p.829
2003
#05
Title: Multiwavelength Observations of Flares on AD Leonis
Date: 11/2003
Authors: Hawley, Suzanne L. ; Allred, Joel C. ; Johns-Krull, Christopher M. ; Fisher, George H. ; Abbett, William P. ; Alekseev, Ilya ; Avgoloupis, Stavros I. ; Deustua, Susana E. ; Gunn, Alastair ; Seiradakis, John H. ; Sirk, Martin M. ; Valenti, Jeff A.
Publication: The Astrophysical Journal, Volume 597, Issue 1, pp. 535-554.
#04
Title: The March 2000 AD Leo Flare Campaign
Date: 10/2003
Authors: Hawley, S. L. ; Johns-Krull, C. M. ; Fisher, G. H. ; Abbett, W. P. search by orcid ; Seiradakis, J. H. ; Avgoloupis, S. I.
Publication: The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 – August 3), eds. A. Brown, G.M. Harper, and T.R. Ayres, (University of Colorado), 2003, p. 975-980.
#03
Title: White-light oscillations during a flare on II Peg.
Date: 06/2003
Authors: Mathioudakis, M. ; Seiradakis, J. H. ; Williams, D. R. ; Avgoloupis, S. ; Bloomfield, D. S. ; McAteer, R. T. J.
Publication: Astronomy and Astrophysics, v.403, p.1101-1104 (2003)
#02
Title: Fast UBVRI colorimetry of stellar flares on EV Lacertae
Date: 04/2003
Authors: Zhilyaev, B. ; Romanyuk, Ya. ; Svyatogorov, O. ; Verlyuk, I. ; Alekseev, I. ; Lovkaya, M. ; Avgoloupis, S. ; Contadakis, M. ; Seiradakis, J. ; Antov, A. ; Konstantinova-Antova, R.
Publication: Kinematika i Fizika Nebesnykh Tel, Suppl, no. 4, p. 30-35
#01
Title: Detection of high-frequency optical oscillations during the flare phase of EV Lac
Date: 01/2003
Authors: Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Verlyuk, A. ; Svyatoagorov, O. A. ; Gershberg, I. R. E. ; Alekseev, I. Yu. ; Shakhovskoy, D. N. ; Lovkaya, M. N. ; Konstantinova-Antova, R. K. ; Antov, A. P.
Publication: From Stars to Earth and Culture. In honour of the memory of Prof. Alexander Tsioumis, ISBN: 960-431-880-2, p.273-279
2001
#04
Title: Colour characteristics of flares on EV Lacertae
Date: 09/2001
Authors: Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Verlyuk, I. A. ; Svyatogorov, O. A. ; Karpov, N. V. ; Sergeev, A. V. ; Gershberg, R. E. ; Alekseev, I. Yu. ; Shakhovskoy, D. N. ; Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Antov, A. P. ; Konstantinova-Antova, R. K.
Publication: 5th Hellenic Astronomical Conference, held 20-22 September, 2001 in Crete, Greece. Online at http://www.astro.auth.gr/elaset/helasmtg/2001/proceedings.htm, id.144.1
#03
Title: Coordinated observations of the red dwarf flare star EV Lac in 1998
Date: 04/2001
Authors: Alekseev, I. Yu ; Antov, A. P. ; Avgoloupis, S. J. ; Beskin, G. M. ; Borisov, N. V. ; Chalenko, V. E. ; Contadakis, M. E. ; Gershberg, R. E. ; Khalak, V. R. ; Konstantinova-Antova, R. K. ; Larionov, V. M. search by orcid ; Panferova, I. P. ; Plokhotnichenko, V. L. ; Pustil’nik, L. A. ; Romanyuk, Ya. O. ; Seiradakis, J. H. ; Sergeev, S. G. ; Svyatogorov, O. A. ; Verlyuk, I. A. ; Zhilyaev, B. E.
Publication: Kinematika i Fizika Nebesnykh Tel, vol. 17, no. 2, p. 147-156
#02
Title: Thirty years photometry of flare stars at the Stephanion Observatory
Date: 2001
Authors: Contadakis, M. E.
Publication: Balkan Meeting of Young Astronomers, 25 – 29 September 2000, Belogradchik, Bulgaria, edited by Alexander Antov, Renada Konstantinova-Antova, Rumen Bogdanovski and Milcho Tsvetkov, Belogradchik: Belogradchik Astronomical Observatory, ISBN 954-90133-2-4, 2001, p. 34 – 42
#01
Title: Detection of fast small scale variability of the flare star EV Lac using a synchronous network of telescopes
Date: 01/2001
Authors: Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Svyatoagorov, O. A. ; Verlyuk, I. A. ; Khalack, V. R. ; Alekseev, I. Yu. ; Shakhovskoy, D. N. ; Contadakis, M. E. ; Avgoloupis, S. J. ; Seiradakis, J. H. ; Konstantinova-Antova, R. K. ; Antov, A. P. ; Bachev, R. S.
Publication: Proceedings of the 4th HEL.A.S Conference 1999, ISBN:960-91647-0-6, p.87-90
2000
#03
Title: Detection of high-frequency optical oscillations on the flare star EV Lacertae
Date: 12/2000
Authors: Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Verlyuk, I. A. ; Svyatogorov, O. A. ; Khalack, V. R. ; Sergeev, A. V. ; Konstantinova-Antova, R. K. ; Antov, A. P. ; Bachev, R. S. ; Alekseev, I. Yu. ; Chalenko, V. E. ; Shakhovskoy, D. N. ; Contadakis, M. E. ; Avgoloupis, S. J.
Publication: Astronomy and Astrophysics, v.364, p.641-645 (2000)
#02
Title: High-frequency optical oscillations on the flare star EV Lacertae
Date: 09/2000
Authors: Zhilyaev, B. E. ; Romanyuk, Ya. O. ; Verlyuk, I. A. ; Svyatogorov, O. A. ; Khalack, V. R. ; Sergeev, A. V. ; Konstantinova-Antova, R. K. ; Antov, A. P. ; Bachev, R. S. ; Alekseev, I. Yu. ; Chalenko, V. E. ; Shakhovskoy, D. N. ; Contadakis, M. E. ; Avgoloupis, S. J.
Publication: Kinematika i Fizika Nebesnykh Tel, Suppl, no. 3, p. 339-340
#01
Title: Stephanion Observatory. Greek-Ukranian astrolink
Date: 09/2000
Authors: Contadakis, M. E. ; Avgoloupis, S. ; Mavridis, L. N.
Publication: Kinematika i Fizika Nebesnykh Tel, Suppl, no. 3, p. 322-326