Skip navigation
Skip navigation

Measuring the vertical age structure of the Galactic disc using asteroseismology and SAGA

Casagrande, Luca; Aguirre, V Silva; Schlesinger, Katharine; Stello, Dennis; Huber, D; Serenelli, A. M.; Schonrich, Ralph; Cassisi, S; Pietrinferni, A; Hodgkin, S.; Milone, Antonino; Feltzing, Sofia; Asplund, Martin

Description

The existence of a vertical age gradient in the Milky Way disc has been indirectly known for long. Here, we measure it directly for the first time with seismic ages, using red giants observed by Kepler. We use Strömgren photometry to gauge the selection function of asteroseismic targets, and derive colour and magnitude limits where giants with measured oscillations are representative of the underlying population in the field. Limits in the 2MASS system are also derived. We lay out a method to...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
URI: http://hdl.handle.net/1885/102868
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stv2320

Download

File Description SizeFormat Image
01_Casagrande_Measuring_the_vertical_age_2016.pdf5.94 MBAdobe PDF


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator