The Second APOKASC Catalog: The Empirical Approach
- 주제(키워드) stars abundances , stars: fundamental parameters , stars: oscillations (including pulsations)
- 주제(기타) Astronomy & Astrophysics
- 설명문(일반) [Pinsonneault, Marc H.; Tayar, Jamie; Zinn, Joel; Johnson, Jennifer A.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA; [Elsworth, Yvonne P.; Chaplin, William J.] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England; [Elsworth, Yvonne P.; Hekker, Saskia; Aguirre, Victor Silva; Chaplin, William J.] Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, Ny Munkegade 120, DK-8000 Aarhus C, Denmark; [Serenelli, Aldo] CSIC, Inst Space Sci, IEEC, Campus UAB, E-08193 Barcelona, Spain; [Stello, Dennis] Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia; [Mathur, Savita; Garcia-Hernandez, D. A.; Zamora, Olga] IAC, C Va Lactea S-N, E-38200 San Cristobal la Laguna, Spain; [Mathur, Savita; Garcia-Hernandez, D. A.; Zamora, Olga] ULL, Dept Astrofis, Tenerife, Spain; [Mathur, Savita] Space Sci Inst, 4750 Walnut St,Suite 205, Boulder, CO 80301 USA; [Garcia, Rafael A.] Univ Paris Diderot, AIM, Sorbonne Paris Cite, CEA,CNRS, F-91191 Gif Sur Yvette, France; [Johnson, Jennifer A.] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France; [Johnson, Jennifer A.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA; [Hekker, Saskia] Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany; [Huber, Daniel] Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA; [Kallinger, Thomas] Univ Vienna, Inst Astron, Turkenschanzstr 17, A-1180 Vienna, Austria; [Meszaros, Szabolcs] Eotvos Lorand Univ, Gothard Astrophys Observ, Szombathely, Hungary; [Mosser, Benoit] Univ Paris Diderot, Univ Pierre & Marie Curie, PSL Res Univ, LESIA,Observ Paris,CNRS, F-92195 Meudon, France; [Stassun, Keivan] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA; [Girardi, Leo; Rodrigues, Thaise S.] INAF, Osservatorio Astron Padova, Vicolo dell Osservatorio 5, I-35122 Padua, Italy; Ewha Womans Univ, Dept Sci Educ, 52 Ewhayeodae Gil, Seoul 03760, South Korea; [Basu, Sarbani] Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA; [Corsaro, Enrico] INAF, Osservatorio Astrofis Catania, Via S Sofia 78, I-95123 Catania, Italy; [Cunha, Katia] Univ Arizona, Tucson, AZ 85719 USA; [Cunha, Katia] Observa Nacl, Sao Cristovao, RJ, Brazil; [Holtzman, Jon] New Mexico State Univ, Dept Astron, MSC 4500,POB 30001, Las Cruces, NM 88003 USA; [Jonsson, Henrik] Lund Univ, Dept Astron & Theoret Phys, Lund Observ, Box 43, SE-22100 Lund, Sweden; [Shetrone, Matthew] Univ Texas Austin, McDonald Observ, 32 Fowlkes Rd, Austin, TX 79734 USA; [Smith, Verne V.] Natl Opt Astron Observ, Tucson, AZ 85719 USA; [Sobeck, Jennifer S.] Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA; [Stringfellow, Guy S.] Univ Colorado, Dept Astrophys & Planetary Sci, Ctr Astrophys & Space Astron, 389 UCB, Boulder, CO 80309 USA; [Beers, Timothy C.] Univ Notre Dame, Deptartment Phys, Notre Dame, IN 46556 USA; [Beers, Timothy C.] Univ Notre Dame, JINA Ctr Evolut Elements, Notre Dame, IN 46556 USA; [Fernandez-Trincado, J. G.] Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile; [Fernandez-Trincado, J. G.] Univ Atacama, Inst Astron & Ciencias Planetarias, Copayapu 485, Copiapo, Chile; [Fernandez-Trincado, J. G.] Univ Bourgogne Franche Comte, CNRS, OSU THETA Franche Comte, Inst Utinam,Observ Besancon,UMR6213, F-25010 Besancon, France; [Frinchaboy, Peter M.] Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA; [Hearty, Fred R.] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA; [Nitschelm, Christian] Univ Antofagasta, Fac Ciencias Basicas, Unidad Astron, Antofagasta, Chile; [Meszaros, Szabolcs] Hungarian Acad Sci, Budapest, Hungary
- 등재 SCIE, SCOPUS
- 발행기관 IOP PUBLISHING LTD
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000156474
- 본문언어 영어
- Published As http://dx.doi.org/10.3847/1538-4365/aaebfd
초록/요약
We present a catalog of stellar properties for a large sample of 6676 evolved stars with Apache Point Observatory Galactic Evolution Experiment spectroscopic parameters and Kepler asteroseismic data analyzed using five independent techniques. Our data include evolutionary state, surface gravity, mean density, mass, radius, age, and the spectroscopic and asteroseismic measurements used to derive them. We employ a new empirical approach for combining asteroseismic measurements from different methods, calibrating the inferred stellar parameters, and estimating uncertainties. With high statistical significance, we find that asteroseismic parameters inferred from the different pipelines have systematic offsets that are not removed by accounting for differences in their solar reference values. We include theoretically motivated corrections to the large frequency spacing (Av) scaling relation, and we calibrate the zero-point of the frequency of the maximum power (vmax) relation to be consistent with masses and radii for members of star clusters. For most targets, the parameters returned by different pipelines are in much better agreement than would be expected from the pipeline-predicted random errors, but 22% of them had at least one method not return a result and a much larger measurement dispersion. This supports the usage of multiple analysis techniques for asteroseismic stellar population studies. The measured dispersion in mass estimates for fundamental calibrators is consistent with our error model, which yields median random and systematic mass uncertainties for RGB stars of order 4%. Median random and systematic mass uncertainties are at the 9% and 8% level, respectively, for red clump stars.
more