[Todos] Ciclo de coloquios del IAR: Lunes 27 de noviembre, 13.30 h.

[Sector Científico IAR]

Colegas,

Los invitamos a participar del Ciclo de Coloquios del IAR el próximo lunes
27 de noviembre a las 13.30 h. En esta oportunidad, la estudiante de
doctorado
Mar Carretero Castrillo, del Departamento de Física Quàntica y Astrofísica
de la Universidad de Barcelona (UB), nos hablará sobre la búsqueda de
binarias de rayos gamma con Gaia DR3 y CTA.

¡Esperamos contar con la participación de todos!

Saludos cordiales,

Florencia

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Fecha y hora: Lunes 27 noviembre, 13.30 h, auditorio del IAR / transmisión
por el canal de YouTube del IAR
<https://www.youtube.com/channel/UCHhrp5UcGpqKivaKu2dKXzA/featured>

Expositora:  Mar Carretero-Castrillo, UB

Title: Search for gamma-ray binaries using Gaia DR3 and CTA.

Abstract:

High-energy gamma-ray astrophysics focuses on the study of the most extreme
accelerators in the Universe. An example of these accelerators are
gamma-ray binaries. These systems are composed of a massive O or Be-type
star and a compact object, emitting gamma rays up to multi-TeV energies.
Because only a handful of them are known and some of their properties are
not fully understood, the discovery of new gamma-ray binaries may help to
answer many open questions through population studies, though it may
eventually open new ones. Given that the known gamma-ray binaries
containing O-type stars are runaways, we search for runaway stars within
catalogs of massive stars using Gaia DR3 astrometric data. We present here
the current status of our project, with tens of new runaway O and Be stars
identified, together with multi-wavelength information. The search for
non-thermal emission using multi-wavelength data, together with radial
velocity studies to confirm their binary nature, will help us build a list
of potential gamma-ray binaries. The future Cherenkov Telescope Array (CTA)
will play a crucial role in unveiling their nature as gamma-ray sources,
thus allowing to enlarge the population for future studies.
-- 

Dra. Florencia L. Vieyro
Responsable Científica
Instituto Argentino de Radioastronomía (IAR-CONICET-CIC-UNLP)
Cno. Gral. Belgrano Km 40, Berazategui
CC N°5 (1894), Villa Elisa
sc-iar en iar.unlp.edu.ar
fvieyro en iar.unlp.edu.a <fvieyro en iar.unlp.edu.ar>r <fvieyro en iar.unlp.edu.ar>
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