Listar por autor "Araya, I. [Univ Mayor, Fac Ciencias, Nucleo Matemat Fis & Estadist, Santiago, Chile]"
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Co-existence and switching between fast and Omega-slow wind solutions in rapidly rotating massive stars
Araya, I. [Univ Mayor, Fac Ciencias, Nucleo Matemat Fis & Estadist, Santiago, Chile]; Cure, M.; ud-Doula, A.; Santillan, A.; Cidale, L. (OXFORD UNIV PRESS, 2018)Most radiation-driven winds of massive stars can be modelled with m-CAK theory, resulting in the so-called fast solution. However, the most rapidly rotating stars among them, especially when the rotational speed is higher ... -
Galactic or extragalactic chemical tagging for NGC3201? Discovery of an anomalous CN-CH relation
Araya, I. [Univ Mayor, Fac Ciencias, Nucleo Matemat Fis & Estadist, Santiago, Chile]; Dias, B.; Nogueira-Cavalcante, J. P.; Saker, L.; Shokry, A. (EDP SCIENCES S A, 2018)Context. The origin of the globular cluster (GC) NGC 3201 is under debate. Its retrograde orbit points to an extragalactic origin, but no further chemical evidence supports this idea. Light-element chemical abundances are ... -
Spectroscopic and photometric study of the eclipsing interacting binary V495 Centauri
Araya, I. [Univ Mayor, Fac Ciencias, Nucleo Matemat Fis & Estadist, Santiago, Chile]; Mennickent, R. E.; Djurasevic, G.; Guzmán, J. A. Rosales; Cure, M. (OXFORD UNIV PRESS, 2018)Double Periodic Variables (DPV) are among the new enigmas of semidetached eclipsing binaries. These are intermediate-mass binaries characterized by a long photometric period lasting on average 33 times the orbital period. ...