Stellar evolution along the HR diagram with Gaia

Session

Overview on Gaia data/products and their use

Sep 20, 2022, 4:40 PM

INAF-Osservatorio Astronomico di Capodimonte

47. Star clusters as laboratories for stellar evolution (Invited)

T. Cantat-Gaudin

9/20/22, 4:40 PM

As groups of co-eval stars sharing the same initial chemical composition, star clusters are ideal laboratories to test stellar evolution models. The Gaia data has been especially useful in showing the limits and inconsistencies of pre-main-sequence star models and the resulting uncertainty in isochronal ages of young clusters. In this talk I will review results obtained with Gaia and...

48. OB stars and associations with Gaia (Invited)

J. Maiz Apellaniz

9/20/22, 5:10 PM

OB stars are the luminaries of the Milky Way but their lives are brief. As such, they provide unique problems and opportunities for their analysis with Gaia, as their luminosities, intrinsic colors, and spatial distribution are quite different from the dominant cooler populations. In particular, most OB stars are born in (unbound) OB associations and Gaia can be used to address two issues: [a]...

88. A Gaia 4D panoramic of the clustered star formation in the solar neighborhood.

E. Alfaro

9/20/22, 5:40 PM

Gaia data has tailored a very complete sample of open clusters, within 3.5 kpc around the Sun, with homogeneous data. The clusters with ages less than 50 Ma (YOCs) provide a taster of how clustered star formation takes place in the extended solar neighborhood. From the Gaia-YOC sample we analyze the hierarchy of star formation in this Galactic region and the 4D (X,Y,Z,Vz) structure in the...

87. Very young low mass stars in the Milky Way unveiled by DBSCAN and Gaia EDR3. Mapping the young clusters within 1.5 Kpc

L. Prisinzano

With an unprecedented astrometric and photometric data precision, Gaia EDR3 gives us the opportunity to systematically and homogeneously detect and map the low mass populations of the star forming regions (SFRs)/very young clusters in the Milky Way in the optical bands.
We present a catalogue of the young stellar objects (YSOs) identified with Gaia EDR3 data in the solar neighbourhood (within...

49. Very young low mass stars in the Milky Way unveiled by DBSCAN and Gaia EDR3. Mapping the young clusters within 1.5 Kpc

L. Prisinzano

With an unprecedented astrometric and photometric data precision, Gaia EDR3 gives us the opportunity to systematically and homogeneously detect and map the low mass populations of the star forming regions (SFRs)/very young clusters in the Milky Way in the optical bands.
We present a catalogue of the young stellar objects (YSOs) identified with Gaia EDR3 data in the solar neighbourhood (within...