Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 812, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/812/2/L29
Keywords
Galaxy: bulge; Galaxy: disk; Galaxy: general; Galaxy: stellar content; stars: variables: Cepheids
Categories
Funding
- ESO Public Survey program [179.B-2002]
- BASAL CATA [PFB-06]
- Chilean Ministry of Economy's ICM grant [IC120009]
- FIC-R Fund [30321072]
- CONICYT-PCHA (Doctorado Nacional) [2014-63140099]
- CONICYT Anillo [ACT 1101]
- FONDECYT [1141141, 1130196, 3130552, 1120601, 1150345]
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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.
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