We are happy to announce the conference

"The Wolf-Rayet phenomenon in the Universe"

that will be held in Morelia, Mexico, at the Centro Cultural Universitario

on June 19-23, 2023

POSTPONED FROM 16-20 NOVEMBER 2020 UNTIL FURTHER NOTICE DUE TO COVID-19



Our understanding of the Wolf-Rayet phenomenon has undergone significant observational and theoretical progress in recent years. Sophisticated radiative transfer models are now routinely used to interpret the spectral signatures of Wolf-Rayet and related emission line stars, helping to deepen our understanding of their structure and, at the same time, their impact on the ISM. Photometric and spectroscopic surveys have substantially increased the observational sample of Galactic and Magellanic Cloud Wolf-Rayet stars. The recent detection of gravitational waves and the recognition of Wolf-Rayet stars as the potential progenitors of some merging black holes has reaffirmed the dominant role of massive star evolutionary processes in defining final products that are at the center of multi-messenger phenomena.



It is an opportune moment to bring together the experts in the field to discuss its recent progress, open issues, and future perspectives and to encourage more scientists to join the research efforts on Wolf-Rayet stars within the broader astrophysical context. The conference will be held in Morelia, the capital of the state of Michoacán in Mexico.

Granada, Spain



Topics:

1. Nebular Architecture: Morphologies and dynamics across stellar mass and wavelength.



2. Nebular Sequences: Time-evolving morphologies and structures.



3. The Engine of Nebular Shaping: Mass-loss mechanisms and their effects on wind symmetry.

Focus Meeting 4 to be held during the XXXIst General Assembly of the International Astronomical Union: Busan, Republic of Korea, August 16 – 27, 2021

 

This Focus Meeting will bring together astronomers who study resolved massive stars, the integrated light of stellar clusters, and their effects on their host galaxies, combining state-of-the-art rest-frame UV spectra and photometric observations with models. This meeting will have a significant interdisciplinary component, focusing on the interplay between massive stars and their host galaxies (e.g. the consequences of environment on the formation and evolution of massive stars and clusters, and their subsequent feedback in terms of ionizing photon production, mass-loss due to winds, and properties of the ISM). The topics and the timing of the meeting are largely driven by the data release of the HST ULLYSES and CLASSY surveys. The former is a complete spectroscopic UV survey of individual massive, metal-poor stars in the Local Group, and the latter provides integrated high-resolution UV spectra of young massive star clusters in the nearby universe.

POSTPONED FROM JULY 19-24 2020 to JUNE 20-25 2021 DUE TO COVID-19



We will organize an international conference with the main focus on hot stars showing effects of the presence of circumstellar material such as spectral line emission, excess radiation in the visual and infrared regions, stellar spectrum veiling, nebulocities, brightness and spectrum variations. The classes of object include pre-main-sequence Herbig Ae/Be stars, Be stars, objects with the B[e] phenomenon, hot supergiants, Wolf-Rayet stars, Luminous Blue Variables, and planetary nebulae.



The conference will take place on July 19-24, 2020 in the city of Almaty, Kazakhstan, on campus of the Al-Farabi Kazakh National University. Almaty is located in foothills of the Tien-Shan mountains, which reach heights up to 5000 meters in the vicinity of the city. It is an astronomical site featuring the Fesenkov Astrophysical Institute and three nearby observatories located at elevations from 1500 to 2800 meters above the sea level.

POSTPONED FROM 18-22 MAY 2020 TO 3-7 MAY 2021 DUE TO COVID-19



The 361st International Astronomical Union (IAU) Symposium will be held in Ballyconnell, Ireland in May 2020. This international conference will bring together observational and theoretical astrophysicists to discuss all aspects of massive stars, their formation, evolution and ultimately their demise as supernovae. The special focus for this conference is on massive stars in the early Universe, how they lived and died, and how they compare with massive stars in our Galaxy.

FULLY ON-LINE VIRTUAL WORKSHOP OCTOBER 12-16 2020. NO REGISTRATION FEE



In this workshop we aim to bring together the experts in the field to review the science highlights from ESO's thermal IR instruments TIMMI, TIMMI2, VISIR, MIDI and MATISSE as well as those at other observatories, such as COMICS, Michelle and T-ReCS. We will review some future facilities, and we will compare techniques and approaches for observations and calibrations, with the aim to reach the theoretical limit, the background-limited performance.