The IAU Symposium 361: “Massive Stars Near and Far” was held in Ballyconnell, Ireland in the week of 8-13 May 2022. That was our first in-person meeting since the start of the pandemic, and the ASSESS team took advantage of the opportunity to travel to Ireland to present our work. …
Stathis Athanasiou joined the ASSESS team recently. He is mainly working on target cross-matching with Hubble Space Telescope images, so that we can retrieve more information for our sources.
The ASSESS team has weekly meetings since its assembly, without losing the momentum due to the pandemic. And it is becoming more vital as the group has expanded!
A machine-learning photometric classifier for massive stars in nearby galaxies I. The method Grigoris Maravelias, Alceste Z. Bonanos, Frank Tramper, Stephan de Wit, Ming Yang, Paolo Bonfini Context. Mass loss is a key parameter in the evolution of massive stars. Despite the recent progress in the theoretical understanding of how …
We welcome onboard the ASSESS team Manos Zapartas, who specializes in stellar evolution and will contribute to the theoretical interpretation.
Evangelia Christodoulou and Konstantinos Antoniadis are the two new PhD students that joined our group on February. Both of them will work on the analysis of the data collected over the previous successful runs in order to understand better the episodic mass loss.
Around Christmas of 2021 Santa brought us two gifts, one just before the holidays and another … just after! We are definitely not disappointed! Two of our proposals have been granted observing time (while another one at ESO didn’t make it this time). We got 4.2 h with FORS2 multislit …
Bouncing against the Yellow Void — exploring the outbursts of ρ Cas from visual observations Grigoris Maravelias and Michaela Kraus Massive stars are rare but of paramount importance for their immediate environment and their host galaxies. They lose mass from their birth through strong stellar winds up to their spectacular …
Recently we had a few changes in our group: Frank moved to the Institute of Astronomy, KU Leuven, while Gonzalo Muñoz Sanchez joined the team as a new PhD student.
A new automated tool for the spectral classification of OB stars E. Kyritsis, G. Maravelias, A. Zezas, P. Bonfini, K. Kovlakas, P. Reig (abridged) We develop a tool for the automated spectral classification of OB stars according to their sub-types. We use the regular Random Forest (RF) algorithm, the Probabilistic …
