stelle massicce – OAPa INAF Osservatorio Astronomico

Wd1-9, a young Wolf-Rayet star hidden by a dusty cocoon. The study: “EWOCS-IV: 1Ms ACIS Chandra observation of the supergiant B[e] star Wd1-9” of K. Anastasopoulou (INAF – OAPA) recently appeared on A&A

Monday July 28th, 2025 Ricerca

The analysis of a long X-ray observation reveals the nature of the mysterious star Wd1-9: a binary system containing a star that has recently evolved into the Wolf-Rayet phase, after expelling the outer layers of its atmosphere, which were accreted onto the companion star. Among the at least one hundred billion stars hosted by our Galaxy, there are a

Completed the Chandra/ACIS-I observations of the starburst cluster Westerlund 1 as part of the EWOCS (Extended Westerlund One Chandra Survey) project.

Tuesday August 24th, 2021 Ricerca

The amount of gas that is converted into stars by the star formation process is described by the star formation rate. For instance, in the Milky Way today between 0.7 and 1.5 solar masses of gas are converted into stars each year. However, this a mean value across our Galaxy, since locally clouds can start forming stars at higher rates

"Giuseppe Salvatore Vaiana"

Tag: stelle massicce

Wd1-9, a young Wolf-Rayet star hidden by a dusty cocoon. The study: “EWOCS-IV: 1Ms ACIS Chandra observation of the supergiant B[e] star Wd1-9” of K. Anastasopoulou (INAF – OAPA) recently appeared on A&A

Completed the Chandra/ACIS-I observations of the starburst cluster Westerlund 1 as part of the EWOCS (Extended Westerlund One Chandra Survey) project.