On 23rd May, Astronomy & Astrophysics published Brajša et al. paper “First analysis of solar structures in 1.21 mm full-disc ALMA image of the Sun” on the cover page where the first results using the ALMA (Atacama Large Millimeter/submillimeter Array) for solar observations were presented. The aim of the paper was to identify different structures and their intensities in the solar atmosphere in full-disc solar ALMA images. ALMA is currently the largest radio telescope in the world and it is composed of 66 high-precision antennas, which operate on wavelengths of 0.32 to 3.6 mm.
From 8th to 11th May 2018, 2nd international doctoral seminar on geodesy, geoinformatics and geospace (IDS3GEO) was held in Dubrovnik, organized by the Faculty of Geodesy, University of Zagreb. IDS3GEO hosted numerous sessions related to astrophysics where our collaborators such as Prof. Arnold Hanslmeier (Graz University) and Prof. Bernd Heber (Kiel University) gave lectures. In different sessions, Bojan Vršnak ("Reflection of Cosmic Rays at Oblique MHD Shocks"), Jaša Čalogović ("Probabilistic model for heliospheric propagation of CMEs: DBEMv2 web application") and Mateja Dumbović ("Forbush decrease model for expanding CMEs - ForbMod") also presented their work.
On 24th April, dr. sc. Jaša Čalogović gave a lecture about the meteorology (“Meteorologija – kako prognozirati kakvo će vrijeme biti u Hvaru?”) in the Hvar elementary school. After the lecture the pupils were divided in several groups and a small quiz related to meteorology was organized. Beside the questions, pupils became the synoptic map of the Europe with aim to make alone the weather forecast for Hvar. The symbolic prizes (sweets and chocolate) were given to the best teams that obtained the highest number of points in quiz.
From April 8 to 13, 2018 Bojan Vršnak attended the International Team Meeting of the team Manuel Luna: "Large-Amplitude Oscillations as a Probe of Quiescent and Erupting Solar Prominences", held at the International Space Science Institute (ISSI) in Bern, Switzerland. Bojan Vršnak tasks were related to the oscillations of prominence-carrying magnetic flux ropes, implications for the stability and loss of equilibrium. He also gave a talk on physical background of prominence oscillations entitled "Coronal and Prominence Diagnostics based on Prominence Oscillations".
On March 22, 2018, Bojan Vršnak gave a public lecture on the physical background of eruptive processes on the Sun. The lecture held at the public library "Bogdan Ogrizović" was organized by Croatian Natural Society (Hrvatsko prirodoslovno društvo, HPD). In the lecture entitled "Solar Eruptive Activity" (Sunčeva eruptivna aktivnost), he presented basic mechanisms that cause various forms of solar eruptions, their space-weather consequences and effects in geospace. Pictures from lecture are available here.
On January 24, 2018, Bojan Vršnak gave a public lecture on the space weather, organized by Croatian Academy of Sciences and Arts and Croatian Science Foundation, on the occasion of receiving the international award Kristian Birkeland Medal for Space Weather and Space Climate. In the lecture entitled "Influence of Solar Activity on the Earth", he presented the history and basic objectives of space-weather, as well as the related research activity at the Hvar Observatory.
On Monday, November 27, 2017, during the 14th European Space Weather Week, held in the Belgian town Oostende, Dr. Bojan Vršnak was awarded with the eminent international award "Kristian Birkeland Medal" for outstanding scientific contributions to the space weather and space climate. This award is given every year since 2013 to the best scientists by the European Space Agency, the Belgian Solar-Terrestrial Center of Excellence and the Space Weather Working Team, in collaboration with the scientific magazine Journal of Space Weather and Space Climate.
From 25th to 27th April in the town Loggia, together with the Hvar Primary School, Split Institute of Oceanography and Fishery and Hvar High School the Festival of Science was organized for the third time in Hvar. The theme of 15th Science Festival was "time" in a chronological or meteorological sense.
Jaša Čalogović visited the Institute of Physics, University of Graz from 5 to 8 July 2016, where he held a seminar "Cosmic rays and clouds: an important climate factor?" in which he presented his previous work, that connects the solar activity and the Earth's climate. During a visit to Graz further collaboration was arranged in order to analyze the impact of coronal holes on the Sun on changes in cosmic ray flux and geomagnetic field of the Earth.
Bojan Vršnak participated in a workshop on the curriculum for the facultative secondary-school courses of Geoinformatics, Botany of aromatic and therapeutic flora, and Solar astronomy, which was held in hotel Amfora at Hvar, July 5-6 2016, in the frame of the educational project HvaR&D. In the scope of the Solar astronomy, a collaboration between Hvar secondary school and Hvar Observatory is foreseen.
Više članaka ...
- ISSI workshop - The scientific foundations of space weather
- CESRA 2016 meeting in Orléans
- Public lecture about Sun in Slovenia
- Mateja Dumbović received the national fellowship ”For Women in Science”
- Festival of science 2016 in Hvar
- ISSI 2016 workshop: "Nature of Coronal Bright Fronts"
- EGU 2016
- Space Climate 6 - school and symposium in Levi
- Workshop at Kanzelhohe Observatory
- Visit to Oslo University