The first view of δ Scuti and γ Doradus stars with the TESS mission-Reference-Cited by-同舟云学术

The first view of δ Scuti and γ Doradus stars with the TESS mission

Published:2019-10-07 Issue:3 Volume:490 Page:4040-4059
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Antoci V¹^ORCID,Cunha M S²,Bowman D M³,Murphy S J¹⁴,Kurtz D W⁵,Bedding T R¹⁴^ORCID,Borre C C¹,Christophe S⁶,Daszyńska-Daszkiewicz J⁷,Fox-Machado L⁸,García Hernández A⁹¹⁰^ORCID,Ghasemi H¹¹^ORCID,Handberg R¹^ORCID,Hansen H¹,Hasanzadeh A¹²,Houdek G¹^ORCID,Johnston C³^ORCID,Justesen A B¹^ORCID,Kahraman Alicavus F¹³¹⁴^ORCID,Kotysz K⁷,Latham D¹⁵,Matthews J M¹⁶,Mønster J¹,Niemczura E⁷,Paunzen E¹⁷^ORCID,Sánchez Arias J P¹⁸,Pigulski A⁷,Pepper J¹⁹,Richey-Yowell T¹⁹²⁰,Safari H¹²^ORCID,Seager S²¹²²²³,Smalley B²⁴^ORCID,Shutt T²⁵,Sódor A²⁶²⁷,Suárez J-C⁹¹⁰^ORCID,Tkachenko A³,Wu T²⁸²⁹³⁰^ORCID,Zwintz K³¹,Barceló Forteza S³²,Brunsden E²⁵,Bognár Z²⁶²⁷,Buzasi D L³³,Chowdhury S¹³,De Cat P³⁴,Evans J A²⁴,Guo Z¹³³⁵,Guzik J A³⁶,Jevtic N³⁷,Lampens P³⁴,Lares Martiz M¹⁰,Lovekin C³⁸,Li G⁴,Mirouh G M³⁹,Mkrtichian D⁴⁰,Monteiro M J P F G²⁴¹,Nemec J M⁴²^ORCID,Ouazzani R-M⁶,Pascual-Granado J¹⁰^ORCID,Reese D R⁶^ORCID,Rieutord M⁴³,Rodon J R¹⁰,Skarka M⁴⁴⁴⁵^ORCID,Sowicka P¹³^ORCID,Stateva I⁴⁶,Szabó R²⁶²⁷^ORCID,Weiss W W⁴⁷

Affiliation:

1. Stellar Astrophysics Centre, Ny Munkegade 120, D-8000 Aarhus, Denmark

2. Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal

3. Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium

4. Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006, Australia

5. Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK

6. LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Jules Janssen, F-92195 Meudon, France

7. Instytut Astronomiczny, Uniwersytet Wrocławski, Kopernika 11, PL-51-622 Wrocław, Poland

8. Instituto de Astronomía, Universidad Nacional Autónoma de México, Ap. P. 877, Ensenada, BC 22860, Mexico

9. Departamento Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva s/n, E-18071 Granada, Spain

10. Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain

11. Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran

12. Department of Physics, Faculty of Science, University of Zanjan, P.O. Box 45195-313 Zanjan, Iran

13. Nicolaus Copernicus Astronomical Center, Bartycka 18, PL-00-716 Warsaw, Poland

14. Physics Department, Faculty of Sciences and Arts, Çanakkale Onsekiz Mart University, 17100 Çanakkale, Turkey

15. Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA

16. Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada

17. Department of Theoretical Physics and Astrophysics, Masaryk University, Kotlarska 2, CZ-611 37 Brno, Czech Republic

18. Instituto de Astrofísica La Plata, CONICET-UNLP, Paseo del Bosque s/n, 1900 La Plata, Argentina

19. Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, PA 18015, USA

20. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85281, USA

21. Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

22. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

23. Department of Aeronautics and Astronautics, MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA

24. Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK

25. Department of Physics, University of York, Heslington, York YO10 5DD, UK

26. Konkoly Observatory, CSFK, Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary

27. 22 MTA CSFK Lendület Near-Field Cosmology Research Group

28. Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, P.R. China

29. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, P.R. China

30. Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, P.R. China

31. Institut für Astro- und Teilchenphysik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria

32. Departamento de Astrofísica, Centro de Astrobiología (CSIC-INTA), ESAC, Camino Bajo del Castillo s/n, E-28692 Madrid, Spain

33. Department of Chemistry and Physics, Florida Gulf Coast University, 10501 FGCU Blvd., Fort Myers, FL 33965, USA

34. Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussel, Belgium

35. Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA

36. Los Alamos National Laboratory, MS T-082, Los Alamos, NM 87545, USA

37. Physics Department, Bloomsburg University, 200 E 2nd St, Bloomsburg, PA 17815, USA

38. Physics Department, Mount Allison University, Sackville, NB E4L 1E6, Canada

39. Astrophysics Research Group, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, UK

40. National Astronomical Research Institue of Thailand, 260 Moo 4, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand

41. Departamento de Física e Astronomia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal

42. Department of Physics & Astronomy, Camosun College, Victoria, BC, Canada

43. IRAP, Université de Toulouse, CNRS, UPS, CNES, 14 Avenue Edouard Belin, F-31400 Toulouse, France

44. Department of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic

45. Astronomical Institute, Czech Academy of Sciences, Fričova 298, CZ-25165 Ondřejov, Czech Republic

46. Institute of Astronomy and NAO, Bulgarian Academy of Sciences, Blvd.Tsarigradsko Chaussee 72, Sofia 1784, Bulgaria

47. Institute for Astrophysics, University of Vienna, Türkenschanzstrasse 17, A-1180 Vienna, Austria

Abstract

ABSTRACT We present the first asteroseismic results for δ Scuti and γ Doradus stars observed in Sectors 1 and 2 of the TESS mission. We utilize the 2-min cadence TESS data for a sample of 117 stars to classify their behaviour regarding variability and place them in the Hertzsprung–Russell diagram using Gaia DR2 data. Included within our sample are the eponymous members of two pulsator classes, γ Doradus and SX Phoenicis. Our sample of pulsating intermediate-mass stars observed by TESS also allows us to confront theoretical models of pulsation driving in the classical instability strip for the first time and show that mixing processes in the outer envelope play an important role. We derive an empirical estimate of 74 per cent for the relative amplitude suppression factor as a result of the redder TESS passband compared to the Kepler mission using a pulsating eclipsing binary system. Furthermore, our sample contains many high-frequency pulsators, allowing us to probe the frequency variability of hot young δ Scuti stars, which were lacking in the Kepler mission data set, and identify promising targets for future asteroseismic modelling. The TESS data also allow us to refine the stellar parameters of SX Phoenicis, which is believed to be a blue straggler.

Funder

Danish National Research Foundation

FCT

FEDER

Polish National Science Center

Spanish Ministry of Science and Education

Polish National Science Centre

NSF REU

Lendület Program

Hungarian Academy of Sciences

National Research, Development and Innovation Fund of Hungary

European Research Council