RT info:eu-repo/semantics/masterThesis
T1 Una revisión de la clasificación de fuentes de rayos X de la galaxia empleando datos de Gaia y TESS
A1 Yanes Rizo, Idaira Vanessa
A2 Máster Universitario en Astrofísica
AB X-ray astronomy has grown very fast in the last decades thanks to the development of severalspace-missions that have detected more than half a million high-energy sources. Among these,X-ray binaries stand out as the brightest objects in this electromagnetic range in our Galaxy. Suchsystems are composed of a stellar remnant (white dwarf, neutron star or a black hole) and acompanion star with the emission in X-rays due to the accretion of matter onto the compact object.The classification of these accreting X-ray binaries is based on the compact object nature, spectraltype of the donor star and the mode of mass transfer. In this way, accreting systems are classifiedinto cataclysmic variables, and high-mass and low-mass X-ray binaries. Another type of X-raybinaries are the chromospherically active systems. They are characterized by strongchromosphere and coronal activity where the X-ray emission is powered by the rapid rotation ofthe stellar components. In this class, depending on the stars evolutionary state and whether theyfill their Roche lobes, we can distinguish between the RS CVn and contact binaries. Differentobservational techniques allow us to classify, or at least put a constraint on the binary type via,for instance, the identification of certain emission and absorption lines in their spectra, thedetection of the rotational period of the compact object at X-rays, or the light curve morphologyat optical wavelengths.
YR 2021
FD 2021
LK http://riull.ull.es/xmlui/handle/915/22384
UL http://riull.ull.es/xmlui/handle/915/22384
LA es
DS Repositorio institucional de la Universidad de La Laguna
RD 08-ene-2025