Space Research at Hvar Observatory
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1 Space Research at Hvar Observatory Roman Brajša Hvar Observatory Faculty of Geodesy, University of Zagreb SCERIN-6 Capacity Building Workshop on Earth System Observations Zagreb, June 2018
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4 History of Hvar Observatory in 1967 agreement on scientific and technical cooperation between Czechoslovakia and Yugoslavia was signed; in 1972 Hvar Observatory was founded Astronomical Institute of the Czechoslovak Adacemy of Sciences, Ondrejov: B. Valníček, V. Bumba, L. Perek, V. Rajský, F. Šorm, K. Havliček Yugoslav representatives: P. Djurković, F. Dominko, L. Randić, P. Terzić Faculty of Geodesy, University of Zagreb: L. Randić, V. Petković and later V. Ruždjak
5 Some milestones in the history of Hvar Observatory 1812: the fortress Napoljun built 1903: Zagreb Observatory founded 1969: initial meeting held at Faculty of Geodesy, Zagreb 1972: Hvar Observatory founded 1977: Hvar Observatory Bulletin founded 1982: First Hvar Astrophysical Colloquium (HAC) held 1989: IAU Coll. 117 Dynamics of Quiescent Prominences held in Hvar 1989: 65-cm telescope moved into new dome outside of the fortress 1991: contract between ministries of science, Croatia and Austria signed : observations stopped because of the war; resumed in : Croatian Astronomical Society (CAS) founded 1997: 1-m ACT official inauguration 2006: Hvar Observatory Bulletin (HOB) Central European Astrophysical Bulletin (CEAB) 2012: 40 years of Hvar Observatory, solar and stellar conferences held 2017: Hvar Observatory (45 y), HOB (40 y), XV HAC (35 y), CAS (25 y), ACT (20 y)
6 Construction of Hvar Observatory Napoleon fortress, 1812 h = 230m
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8 Hvar 65 cm stellar telesope installed in 1972 mirror of 650 mm, Cassegrain telesope focal ratio f/11.2 photometry of Be and eclipsing variable stars
9 Hvar 65 cm stellar telesope relocated in the new dome in 1989 because of light pollution from Hvar
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11 Eclipsing variable stars Algol (Beta Perseus) stellar photometry is performed in close cooperation with colleagues from AICAS, Ondrejov, Czech Republic
12 1 m Austrian-Croatian Telescope (ACT) installed in 1997 primary mirror 1060 mm u Ritchey- Chretien telescope two secondary mirror 400 mm (f/6.8) and 260 mm (f/15) English mounting, computer controlled telescope guiding equipped with CCD camera
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14 Double solar telescope at Hvar installed in 1972 in 1997 photography video system in 2004 video system 1Mpix CCD cameras
15 Double solar telescope at Hvar modernization: in th imaging system was installed: 4MPix Pulnix TM-4200GE 12- bit CCD cameras high resolution images of active regions and prominences on the Sun close cooperation with University of Graz, Austria and its Kanzelhöhe Solar Observatory new imaging system from 2010 rich data archive at Faculty of Geodesy in digital form control room
16 Solar photosphere: sunspot group AR :52 UT :40 UT :03 UT :44 UT :19 UT :39 UT
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18 Solar chromosphere (Ha) 22 Sept. 2011, sunspot group 11302, X1.4 flare 07:45:45 UT 07:57:32 UT 08:52:25 UT
19 Solar chromosphere, active region, 4 July 2012, 11:55 UTC, AR 11515
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27 Solar prominences and solar flares Prominences (filaments): clouds of colder and denser ionized gas in the solar atmosphere held by megnetic field Solar flares sudden eruptions of hot gas in the solar atmosphere Coronal Mass Ejections Prominence 30 March 2010 SDO (NASA)
28 Influence on the Earth Space Weather prediction tools Effects on astronauts, pilots, space missions, communication satellites, power suply lines, electronic devices and climate on Earth
29 SOlar-TERrestrial Investigations and Archives, EU FP7 GOALS: link between solar physics and geophysics, creation of data base, comparison between modeling and observations 1 November October 2011 Partners from 11 countries: Austria, Belgium, Croatia, Czech Republic, Denmark, Finland, France, Germany, Hungary, Poland, Russia
30 COronal Mass Ejections and Solar Energetic Particles EU FP7 GOALS: investigation of the CME and solar flare influence on interplanetary space and development of an automatic alarming system 1 February January 2014 Partners from 8 countries: Austria, Belgium, Croatia, Denmark, Greece, India, UK, USA
31 Environment for Human Exploration and RObotic Experimentation in Space, EU FP7 GOALS: investigation of interplanetary space and solar influence on manned and unmanned space missions 1 March February 2015 Partners from 14 countries: Austria, Belgium, Canada, Croatia, Finland, France, Germany, Hungary, Italy, Poland, Russia, Switzerland, UK, USA
32 Croatia is joining ESA
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34 Summary and Conclusion - stellar physics: photometry of variable stars, various types (e.g., Be stars, eclipsing binary stars,...); Hvar-Ondrejov photometric archive, search for extrasolar planets - solar physics: solar rotation and activity, solar chromosphere, flares, prominences, CME, solar-terrestrial physics, space weather - strong international cooperation: observatories, satellites - projects: domestic and international, e.g., partners in 4 EU FP7 projects, 1 EU Horizon 2020 project, and 1 ESO project - fellowships: 1 Alexander von Humboldt, 1 Marie Curie - awards: 1 Kristian Birkeland Medal for Space Weather and Space Climate - supervising diploma works, master theses, PhD theses - scientific output: NASA/ADS: > 670 papers; > 8300 citations (up to end 2017)
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