Exploring the core of the nearest massive star-forming region: A study of Cygnus OB2
Abstract
The Cygnus-X complex represents the most powerful star-forming region at less than 2 kpc from us. Its core, Cygnus OB2, contains nearly 100 O-stars and can be used as a laboratory for massive star evolution and a proxy for massive clusters. Its distance allows observations at all wavelengths and accurate Gaia measurements. Thus it has been selected for a detailed research that we present in four independent but related studies. In this contribution we present four studies in which we have: (I) updated the Cygnus OB2 massive OB-star census, (II) looked for self-enrichment processes and studied the implications of its abundance gradient, (III) performed the first study of its spatial substructure using Gaia DR2 data, and (IV) combined the DR2 data with our spectroscopic analyses to explore the recent star formation history.
- Publication:
-
XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society
- Pub Date:
- July 2020
- Bibcode:
- 2020sea..confE.122B