Testing the Asteroseismic Mass Scale Using Metal-Poor Stars Characterized With APOGEE and Kepler
dc.contributor.utaustinauthor | Shetrone, Matthew | en_US |
dc.creator | Epstein, Courtney R. | en_US |
dc.creator | Elsworth, Yvonne P. | en_US |
dc.creator | Johnson, Jennifer A. | en_US |
dc.creator | Shetrone, Matthew | en_US |
dc.creator | Mosser, Benoit | en_US |
dc.creator | Hekker, Saskia | en_US |
dc.creator | Tayar, Jamie | en_US |
dc.creator | Harding, Paul | en_US |
dc.creator | Pinsonneault, Marc | en_US |
dc.creator | Aguirre, Victor Silva | en_US |
dc.creator | Basu, Sarbani | en_US |
dc.creator | Beers, Timothy C. | en_US |
dc.creator | Bizyaev, Dmitry | en_US |
dc.creator | Bedding, Timothy R. | en_US |
dc.creator | Chaplin, William J. | en_US |
dc.creator | Frinchaboy, Peter M. | en_US |
dc.creator | Garcia, Rafael A. | en_US |
dc.creator | Perez, Ana E. Garcia | en_US |
dc.creator | Hearty, Fred R. | en_US |
dc.creator | Huber, Daniel | en_US |
dc.creator | Ivans, Inese I. | en_US |
dc.creator | Majewski, Steven R. | en_US |
dc.creator | Mathur, Savita | en_US |
dc.creator | Nidever, David | en_US |
dc.creator | Serenelli, Aldo | en_US |
dc.creator | Schiavon, Ricardo P. | en_US |
dc.creator | Schneider, Donald P. | en_US |
dc.creator | Schoenrichi, Ralph | en_US |
dc.creator | Sobeck, Jennifer S. | en_US |
dc.creator | Stassun, Keivan G. | en_US |
dc.creator | Stello, Dennis | en_US |
dc.creator | Zasowski, Gail | en_US |
dc.date.accessioned | 2016-10-28T19:36:44Z | |
dc.date.available | 2016-10-28T19:36:44Z | |
dc.date.issued | 2014-04 | en_US |
dc.description.abstract | Fundamental stellar properties, such as mass, radius, and age, can be inferred using asteroseismology. Cool stars with convective envelopes have turbulent motions that can stochastically drive and damp pulsations. The properties of the oscillation frequency power spectrum can be tied to mass and radius through solar-scaled asteroseismic relations. Stellar properties derived using these scaling relations need verification over a range of metallicities. Because the age and mass of halo stars are well-constrained by astrophysical priors, they provide an independent, empirical check on asteroseismic mass estimates in the low-metallicity regime. We identify nine metal-poor red giants (including six stars that are kinematically associated with the halo) from a sample observed by both the Kepler space telescope and the Sloan Digital Sky Survey-III APOGEE spectroscopic survey. We compare masses inferred using asteroseismology to those expected for halo and thick-disk stars. Although our sample is small, standard scaling relations, combined with asteroseismic parameters from the APOKASC Catalog, produce masses that are systematically higher ((Delta M) = 0.17 +/- 0.05 M-circle dot) than astrophysical expectations. The magnitude of the mass discrepancy is reduced by known theoretical corrections to the measured large frequency separation scaling relationship. Using alternative methods for measuring asteroseismic parameters induces systematic shifts at the 0.04 M-circle dot level. We also compare published asteroseismic analyses with scaling relationship masses to examine the impact of using the frequency of maximum power as a constraint. Upcoming APOKASC observations will provide a larger sample of similar to 100 metal-poor stars, important for detailed asteroseismic characterization of Galactic stellar populations. | en_US |
dc.description.department | McDonald Observatory | en_US |
dc.description.sponsorship | Alfred P. Sloan Foundation | en_US |
dc.description.sponsorship | National Science Foundation | en_US |
dc.description.sponsorship | U.S. Department of Energy Office of Science | en_US |
dc.description.sponsorship | University of Arizona | en_US |
dc.description.sponsorship | Brazilian Participation Group | en_US |
dc.description.sponsorship | Brookhaven National Laboratory | en_US |
dc.description.sponsorship | Carnegie Mellon University | en_US |
dc.description.sponsorship | University of Florida | en_US |
dc.description.sponsorship | French Participation Group | en_US |
dc.description.sponsorship | German Participation Group | en_US |
dc.description.sponsorship | Harvard University | en_US |
dc.description.sponsorship | Instituto de Astrofisica de Canarias | en_US |
dc.description.sponsorship | Michigan State/Notre Dame/JINA Participation Group | en_US |
dc.description.sponsorship | Johns Hopkins University | en_US |
dc.description.sponsorship | Lawrence Berkeley National Laboratory | en_US |
dc.description.sponsorship | Max Planck Institute for Astrophysics | en_US |
dc.description.sponsorship | Max Planck Institute for Extraterrestrial Physics | en_US |
dc.description.sponsorship | New Mexico State University | en_US |
dc.description.sponsorship | New York University | en_US |
dc.description.sponsorship | Ohio State University | en_US |
dc.description.sponsorship | Pennsylvania State University | en_US |
dc.description.sponsorship | University of Portsmouth | en_US |
dc.description.sponsorship | Princeton University | en_US |
dc.description.sponsorship | Spanish Participation Group | en_US |
dc.description.sponsorship | University of Tokyo | en_US |
dc.description.sponsorship | University of Utah | en_US |
dc.description.sponsorship | Vanderbilt University | en_US |
dc.description.sponsorship | University of Virginia | en_US |
dc.description.sponsorship | University of Washington | en_US |
dc.description.sponsorship | Yale University | en_US |
dc.description.sponsorship | Physics Frontier Center/Joint Institute for Nuclear Astrophysics (JINA) PHY 08-22648 | en_US |
dc.description.sponsorship | NASA NNX12AE17G | en_US |
dc.description.sponsorship | Netherlands Organization for Scientific Research | en_US |
dc.description.sponsorship | ERC 338251 | en_US |
dc.description.sponsorship | MICINN AYA2011-24704 | en_US |
dc.description.sponsorship | Danish National Research Foundation DNRF106 | en_US |
dc.description.sponsorship | ASTERISK project (AS-TERoseismic Investigations with SONG and Kepler) | en_US |
dc.description.sponsorship | European Research Council | en_US |
dc.description.sponsorship | 267864 AST-1211673 | en_US |
dc.identifier | doi:10.15781/T2MS3K430 | |
dc.identifier.citation | Epstein, Courtney R., Yvonne P. Elsworth, Jennifer A. Johnson, Matthew Shetrone, Benoît Mosser, Saskia Hekker, Jamie Tayar et al. "Testing the Asteroseismic Mass Scale Using Metal-poor Stars Characterized with APOGEE and Kepler." The Astrophysical Journal Letters, Vol. 785, No. 2 (Apr., 2014): L28. | en_US |
dc.identifier.doi | 10.1088/2041-8205/785/2/l28 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/2152/43032 | |
dc.language.iso | English | en_US |
dc.relation.ispartof | en_US | |
dc.relation.ispartofserial | Astrophysical Journal Letters | en_US |
dc.rights | Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. | en_US |
dc.rights.restriction | Open | en_US |
dc.subject | asteroseismology | en_US |
dc.subject | galaxy: halo | en_US |
dc.subject | stars: fundamental parameters | en_US |
dc.subject | solar-like oscillations | en_US |
dc.subject | digital sky survey | en_US |
dc.subject | milky-way | en_US |
dc.subject | ngc 6791 | en_US |
dc.subject | globular-clusters | en_US |
dc.subject | red giants | en_US |
dc.subject | hipparcos parallaxes | en_US |
dc.subject | stellar | en_US |
dc.subject | populations | en_US |
dc.subject | branch stars | en_US |
dc.subject | age | en_US |
dc.subject | astronomy & astrophysics | en_US |
dc.title | Testing the Asteroseismic Mass Scale Using Metal-Poor Stars Characterized With APOGEE and Kepler | en_US |
dc.type | Article | en_US |