Publicación
Blue stragglers and the binary hypothesis
An observational test of the binary hypothesis for the origin of blue straggler stars is conducted by searching for radial velocity variables among 30 blue...
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PublicaciónBlue stragglers in open clusters - A test of the binary hypothesisA search for binaries among 17 blue stragglers in five galactic clusters, NGC 7789, 6633, 6819, 6939, and M 67, has been performed using measurements of radial...
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NoticiaCientíficos del IAC completan un estudio sin precedentes de la masa de más de 500 cúmulos de galaxiasUn equipo de investigadores del grupo de Cosmología del Instituto de Astrofísica de Canarias (IAC) ha obtenido una de las medidas más precisas de la masa que...
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PublicaciónClose Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude DiagramMany problems in contemporary astrophysics—from understanding the formation of black holes to untangling the chemical evolution of galaxies—rely on knowledge...
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PublicaciónConstraints to the masses of brown dwarf candidates form the lithium testWe present intermediate dispersion (0.7-2.2 A/pixel) optical spectroscopic observations aimed at applying the 'lithium test' to a sample of 10 brown dwarf...
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PublicaciónDESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest NeighborWe present Dark Energy Spectroscopic Instrument (DESI) observations of the inner halo of M31, which reveal the kinematics of a recent merger-a galactic...
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NoticiaDetectan una nueva supertierra alrededor de una estrella enana rojaEn los últimos años se ha llevado a cabo un seguimiento exhaustivo de estrellas enanas rojas con el objetivo de encontrar exoplanetas orbitando a su alrededor...
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PublicaciónDetection of Gravitational Redshift in Open Cluster Nondegenerate StarsA key observational prediction of Einstein's Equivalence Principle is that light undergoes redshift when it escapes from a gravitational field. Although...
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PublicaciónDiagnostics of chromospheric velocity fieldsThis paper examines the possibility of recovering quantitative information on chromospheric velocity fields from high resolution (lambda/Delta lambda of about...