THE VVV SURVEY REVEALS CLASSICAL CEPHEIDS TRACING A YOUNG and THIN STELLAR DISK ACROSS the GALAXY'S BULGE
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Fecha
2015-10
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
Institute of Physics Publishing
Nombre de Curso
Licencia CC
Atribución 4.0 Internacional (CC BY 4.0)
Licencia CC
https://creativecommons.org/licenses/by/4.0/deed.es
Resumen
Solid insight into the physics of the inner Milky Way is key to understanding our Galaxy's evolution, but extreme dust obscuration has historically hindered efforts to map the area along the Galactic mid-plane. New comprehensive near-infrared time-series photometry from the VVV Survey has revealed 35 classical Cepheids, tracing a previously unobserved component of the inner Galaxy, namely a ubiquitous inner thin disk of young stars along the Galactic mid-plane, traversing across the bulge. The discovered period (age) spread of these classical Cepheids implies a continuous supply of newly formed stars in the central region of the Galaxy over the last 100 million years. © 2015. The American Astronomical Society. All rights reserved.
Notas
Indexación: Scopus
Palabras clave
Galaxy, bulge, disk, Galaxy: stellar content, stars, variables, Cepheids Supporting material, data behind figure
Citación
DOI
10.1088/2041-8205/812/2/L29