This year’s European Astronomical Society meeting was held at Cork, Ireland, between 23 and 27 of June (2025). One of the plenary talks was given by Alceste (Bonanos) on June 24th. Entitled “Episodic Mass Loss in Evolved Massive Stars”, she summarized what we have managed to discover and understand during …
Alceste Z. Bonanos Identifications of red supergiants (RSGs) in the Milky Way and nearby galaxies have experienced an exponential increase in recent years, driven by advancements in selection techniques, the continued expansion of archival datasets, and a steady increase in spectroscopic data. This review describes the advances in methodologies and …
G. Muñoz-Sanchez, M. Kalitsounaki, S. de Wit, K. Antoniadis, A.Z. Bonanos, E. Zapartas, K. Boutsia, E. Christodoulou, G. Maravelias, I. Soszynski, and A. Udalski Red Supergiants (RSGs) are cool, evolved massive stars in the last evolutionary stage before exploding as a supernova. However, the most luminous RSGs may evolve blueward …
G. Munoz-Sanchez, S. de Wit , A. Z. Bonanos, K. Antoniadis, K. Boutsia, P. Boumis, E. Christodoulou, M. Kalitsounaki, and A. Udalski Context. Despite mounting evidence that extreme red supergiants (RSGs) undergo episodic mass-loss events, their role in RSG evolution remains uncertain. Critical questions remain unanswered, such as whether or …
This year VFTS (VLT-FLAMES TaranTula Survey) 2024 meeting took place on Sep 16-18, in Madrid (Spain). That was another great opportunity for our PhD students to communicate their results and receive valuable feedback from some of the world experts in the field. In particular Gonzalo (Munoz-Sanchez) presented “Episodic mass loss …
Evolved Massive Stars at Low-metallicity V. Mass-Loss Rate of Red Supergiant Stars in the Small Magellanic Cloud Ming Yang (杨明), Alceste Z. Bonanos, Biwei Jiang (姜碧沩), Emmanouil Zapartas, Jian Gao (高健), Yi Ren(任逸), Man I Lam (林敏仪), Tianding Wang (王天丁), Grigoris Maravelias, Panagiotis Gavras, Shu Wang (王舒), Xiaodian Chen (陈孝钿), …
For three days in June (20-23, 2022) a – broader – meeting of the VFTS project took place in Heidelberg. Stephan de Wit represented the ASSESS project by contributing with the talk: ” ASSESSing Red Supergiants, in the Local Group … and beyond!”. After a short presentation of the whole …
Evolved Massive Stars at Low-metallicity IV.Using 1.6μm “H-bump” to identify red supergiant stars:a case study of NGC 6822 Ming Yang, Alceste Z. Bonanos, Biwei Jiang, Man I Lam, Jian Gao, Panagiotis Gavras, Grigoris Maravelias, Shu Wang, Xiao-Dian Chen, Frank Tramper, Yi Ren, Zoi T. Spetsieri Abstract We present a case …
Evolved Massive Stars at Low-metallicity III. A Source Catalog for the Large Magellanic Cloud Ming Yang, Alceste Z. Bonanos, Biwei Jiang, Jian Gao, Panagiotis Gavras, Grigoris Maravelias, Shu Wang, Xiao-Dian Chen, Man I Lam, Yi Ren, Frank Tramper, Zoi T. Spetsieri Abstract We present a clean, magnitude-limited (IRAC1 or WISE1≤15.0 …
Evolved Massive Stars at Low-metallicity II. Red Supergiant Stars in the Small Magellanic Cloud Ming Yang, Alceste Z. Bonanos, Bi-Wei Jiang, Jian Gao, Panagiotis Gavras, Grigoris Maravelias, Shu Wang, Xiao-Dian Chen, Frank Tramper, Yi Ren, Zoi T. Spetsieri, Meng-Yao Xue Abstract We present the most comprehensive RSG sample for the …
![Munoz-Sanchez et al. 2024: Episodic mass loss in the very luminous red supergiant [W60] B90 in the Large Magellanic Cloud](http://assess.astro.noa.gr/wp-content/uploads/2024/12/2024-Munoz-Sanchez-Fig4sm-216x200.png)
