ICATE 21876
INSTITUTO DE CIENCIAS ASTRONOMICAS, DE LA TIERRA Y DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Symbiotic stars in X-rays II: Faint sources detected with XMM- Newton and Chandra
Autor/es:
N.E. NUÑEZ; G.J.M LUNA; I. PILLITERI; K. MUKAI
Revista:
ASTRONOMY AND ASTROPHYSICS
Editorial:
EDP SCIENCES S A
Referencias:
Lugar: Paris; Año: 2014 vol. 565 p. 82 - 86
ISSN:
0004-6361
Resumen:
We report the detection from four symbiotics stars that were not known to be X-ray sources. These four object show a beta-type X-ray spectrum, that is, their spectra can be modeled with an absorbed optically thin thermal emission with temperatures of a few million degrees. Photometric series obtained with the Optical Monitor on board XMM- Newton from V2416 Sgr and NSV 25735 support the proposed scenario where the X-ray emission is produced in a shock-heated region inside the symbiotic nebulae.
