Stellar evolution along the HR diagram with Gaia

Session

Overview on Gaia data/products and their use

20 Sept 2022, 14:30

INAF-Osservatorio Astronomico di Capodimonte

44. Multiple stellar systems in Gaia DR3 (Invited)

M. Barstow

20/09/2022, 14:30

The Gaia DR3 catalogue is the first release from the mission to contain the detailed solutions for multiple star systems. These have been identified by Gaia’s unique range of observational techniques providing orbital elements or trend parameters for astrometric, spectroscopic and photometric (eclipsing) binaries and combinations of them.

This is a hugely important data resource containing...

45. White dwarfs and the Gaia revolution (Invited)

N. Gentile Fusillo

20/09/2022, 15:00

Over 95% of all the stars in the Galaxy will, one day, evolve into white dwarfs: small stellar remnants slowly cooling and fading over billions of years. The unique properties of these objects make them powerful tools with applications in diverse areas of astrophysics, from cosmochronology to exo-planetary science.

However, because of their sparse sky density and intrinsic low luminosity,...

46. Gaia : An efficient black-hole hunter

C. Chawla

20/09/2022, 15:30

Understanding the connection between the properties of BHs and their progenitors is interesting in many branches of astrophysics. Traditional methods such as detection through X-ray, radio, or gravitational-wave emission are sensitive towards a small subset of all BH binaries expected to form in nature. In my talk I will explore the exciting possibilities for detecting BHs in detached binary...

86. The white dwarf population within 100pc as seen by Gaia-DR3 and the VO

F. Jiménez-Esteban

20/09/2022, 15:50

The recent Gaia data release 3 has provided BP/RP spectra for most of the white dwarfs (WD) located closer than 100 pc from the Sun. This volume-limited sample of WDs within 100pc is the most complete sample of WDs defined so far (Jiménez-Esteban et al. 2018). We have used the Gaia-DR3 spectra, the Virtual Observatory (VO), and a new collection of emission model spectra, to classify the WDs...