Towards a comprehensive view of the Carina Nebula through the spectroscopic study of its O-star population
Year: 2024
Type: article
Abstract: The Carina Nebula is one of the major and more massive regions of our Galaxy that contains a large number of massive O-type stars that can be analyzed. Benefiting from astrometry by Gaia DR3 and high-quality spectra from different surveys and stellar libraries, a detailed spectroscopic characterization of its O-type stellar content can be performed. To this aim, a high-degree of completeness in the census of its early-type population is mandatory. In this contribution I present the most complete census of OB stars ever done in Carina, including an updated estimate of the binary fraction of O stars and potential OB runaway candidates. Using Gaia-ESO Survey (GES) spectra and the library of libraries of massive star high-resolution spectra (LiLiMaRlin), we derive accurate rotational and stellar parameters for the O population in the region, obtaining a reliable distribution of rotational velocities and the Hertzsprung-Russell Diagram, from which we inspect the main physical properties of cluster members and test theoretical evolutionary models.
Authors: R. Berlanas, Sara, Maíz Apellániz, Jesús, HERRERO, ARTEMIO
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6930259756
FWCI:
Cites:
Cited by:
Related to: