News - Events

  1. "European Research Council (ERC) Information Day"

    On Wednesday, October 30th, NOA held a European Research Council (ERC) Information Day on the occasion of the visit to NOA of Dr. Nicolas Sifakis, Scientific Officer at the European Research Council Executive Agency. Presentations of the research activities at NOA were given by Prof. Manolis Plionis, Director of NOA and Dr. Spiros Basilakos, Director of IAASARS. Subsequently, Dr. Nicolas Sifakis and Dr. Christina Pasqual, a representative for the National Center for Documentation and Electronic Content (ESF), presented ERC early-career funding opportunities and the role of the ESF as a national contact point for H2020 and the ERC. Finally, the principal investigators of D-TECT and ASSESS, Dr. Vassilis Amiridis and Dr. Alceste Bonanos, shared their experience with applying for an ERC grant and provided practical advice. The event was prefaced by the Secretary General for Research and Technology, Prof. Athanasios Kyriazis, and was attended by about 70 scientists. The presentations are available here.

    | 30/10/2019 |
  2. "ESA/Hubble Releases the Hubble Catalog of Variables"

    ESA/Hubble is pleased to announce the release of the Hubble Catalog of Variables (HCV), the first full, homogeneous catalogue of variable sources based on archival HST data. The HCV was developed over four years by a team of astronomers at the National Observatory of Athens, led by Alceste Bonanos and sponsored by ESA in collaboration with STScI. The HCV is the deepest catalogue of variables available. In total, the HCV includes 84 428 candidate variable sources (out of 3.7 million HSC sources that were searched for variability) with V ≤ 27 mag; for 11 115 of them the variability is detected in more than one filter. The data points in a light curve range from 5 to 120, the time baseline ranges from under a day to over 15 years, and ~8% of variables have amplitudes in excess of 1 mag. The HCV is expected to become a key resource for the community, as it includes variable stars in the Milky Way and nearby galaxies, as well as transients and variable AGN, including low-luminosity AGN. The HCV contains many interesting high-amplitude variables, which require further study.

    | 24/09/2019 |
  3. "Dr. Elias Koulouridis joins IAASARS as an Associate Researcher"

    We are pleased to welcome Dr. Elias Koulouridis as an Associate Researcher of IAASARS starting in May 2019. Dr. Koulouridis obtained his PhD in 2009 from the University of Patras, in collaboration with the National Observatory of Athens. He worked as a postdoctoral researcher and then as a fellow at NOA until 2015. From 2015-2019 he worked as a senior postdoctoral researcher at the Dpartement d'Astrophysique of CEA / Saclay in France.

    | 04/09/2019 |
  4. "Inaba prize awarded to IAASARS postdoctoral researcher Alexandra Tsekeri"

    Dr. Alexandra Tsekeri was awarded the Inaba Prize by the International Coordination Group for Laser Atmospheric Studies during the 29th International Laser Radar Conference (ILRC), which took place in China at the end of June 2019. This prize is awarded during each ILRC to an individual under the age of 40 who is judged to have presented the best paper at the ILRC. The paper of Dr. Tsekeri was titled "Polarization lidar for detecting dust orientation and presents a proposal by NOA to develop an original polarization lidar for surveying the atmosphere, in collaboration with the greek company Raymetrics.

    | 12/07/2019 |
  5. "Hubble Catalog of Variables to be released in September"

    In a few months, the results of four years of intense effort by astronomers from the National Observatory of Athens, sponsored by ESA and led by Alceste Bonanos, will be unveiled. The Hubble Catalog of Variables (HCV) is the first full, homogeneous, catalogue of variable sources found in the Hubble Source Catalog (HSC), which is built out of publicly available images obtained with the WFPC2, ACS and WFC3 instruments. Hubble has been observing the sky for over 29 years and has visited some regions of the sky several times over its lifetime. This offers the opportunity to search for variable objects over a range of magnitudes that is difficult to reach with ground-based telescopes.

    | 15/05/2019 |
  6. "Honorable mention for the Director of IAASARS"

    The Director of IAASARS Spyros Basilakos has gained for the fourth time, an honorable mention in the international essay contest 2019 of the Gravity Research Foundation. Dr. Basilakos has been awarded an honorable mention in four occasions, in the years 2013, 2014, 2017 and 2019. His essay Do we come from a Quantum Anomaly? was written with collaborators Joan Sola (Un. of Barcelona) and Nick Mavromatos (Kings College of London). The awarded essays will be published in a special issue of the International Journal of Modern Physics D (IJMPD). This essay contest is the most important of the gravity and cosmology field, which counts with the participation of relevant researchers from several worldwide institutions and universities, including awarded Nobel prizes. The Gravity Research Foundation was founded by Roger W. Babson (1875- 1967) and the first awards for the best essays submitted on Gravity were made on December 1st, 1949. Click here to read the 2019 Essay in pdf format.

    | 14/05/2019 |
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National Observatory of Athens
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