R Aquarii is a pair of a) a white dwarf star that steadily burns at a relatively cool temperature and b) a highly variable red giant. As they orbit each other, the white dwarf pulls material from the red giant Read More …
🚀 Antonis Georgakakis is staff researcher at the National Observatory of Athens and interested in understanding the formation of supermassive black holes at the centres of galaxies. Within AHEAD2020 he contributes to the development of an X-ray source detection code Read More …
The massive galaxies and a fraction of lower mass galaxies in the Local Universe host a super massive black hole (SMBH) in their center. They have masses between millions to 10 billions times the mass of the Sun. When matter Read More …
Modelling complex AGN media in full-3D with a new X-ray radiativetransfer code Van der Meulen, Univ. Ghent, Belgium (Clemson aUniv. — USA) Talk (NOA, X-ray group) March 17th, 2022 11h00 AM CET IAASARS NOA is inviting you to a scheduled Read More …
A supernova is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star (at least five times the mass of our sun) or when a white dwarf is triggered into Read More …
The Observed Compton-thick fraction in the local Universe by Dr. Nuria Torres-Alba (Clemson aUniv. — USA) Talk (NOA, X-ray group) March 10th, 2022 15h00 AM CET IAASARS NOA is inviting you to a scheduled Zoom meeting. Topic: Extragalactic (X-ray+) talk. Read More …
The Mass Metallicity relation in the LEGA-C survey Talk (NOA, X-ray group) March 3rd, 2022 11h00 AM CET IAASARS NOA is inviting you to a scheduled Zoom meeting. Topic: Extragalactic (X-ray+) talk. A. Nersesian (U. Ghent)Time: Mar 3, 2022 12:00 Read More …
End-to-end simulations with SIXTE: An online workshop===================================================== 29-31 March 2022, 13-16 UT / 15-18 CEST / 9-12am EDT==================================================== The SIXTE team for the end-to-end simulator for Athena and other X-rayastronomical missions is happy to announce its next hands-on workshop,following the Read More …
The X-ray team of IAASARS at National Observatory of Athens organises weekly seminars dedicated to high-energy Astrophysics. The programme is shown below. Stay tuned for the zoom credentials a few days before each meeting. They will be given in a Read More …
Today was the last day of the winter school of #Astrophysics for children of 5th & 6th grade, organized by the visitor center (Κέντρα Επισκεπτών Εθνικού Αστεροσκοπείου Αθηνών ) of the National Observatory of Athens (Εθνικόν Αστεροσκοπείον Αθηνών ) and Read More …
