Monthly Notices of the Royal Astronomical Society

Normal modes and discovery of high-order cross-frequencies in the DBV white dwarf GD 358

Corresponding Author

F. Vuille

Department of Astronomy, University of Cape Town, Rondebosch 7700, South Africa

^★ Present address: Eterpy 49, 1020 Renens, Switzerland.† E-mail: [email protected]‡ Guest observer at Assey-Turgen Observatory, Kazakhstan.§ Visiting astronomer at the Laboratorio Nacional de Astrofisica/CNPq, Brazil.¶ Guest observer at Siding Spring Observatory, Australia.Search for more papers by this author

D. O’Donoghue,

D. O’Donoghue

South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa

Search for more papers by this author

D. A. H. Buckley,

D. A. H. Buckley

South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa

Search for more papers by this author

C.-M. Massacand,

Corresponding Author

C.-M. Massacand

MR, Nordlysobservatoriet, Universitetet i Tromso, N-9037 Tromso, Norway

J. E. Solheim,

J. E. Solheim

MR, Nordlysobservatoriet, Universitetet i Tromso, N-9037 Tromso, Norway

Search for more papers by this author

S. Bard,

S. Bard

University of Oslo, Institute of Theoretical Astrophysics, PO Box 1029 – Blindern, N-0315 Oslo, Norway

Search for more papers by this author

G. Vauclair,

G. Vauclair

Observatoire Midi-Pyrenees, 14 Avenue E. Belin, 31400 Toulouse, France

Search for more papers by this author

O. Giovannini,

Corresponding Author

O. Giovannini

Instituto de Fisica, Universidade Federal do Rio Grande do Sul, 91500-970 Porto Alegre RS, Brazil

S. O. Kepler,

S. O. Kepler

Instituto de Fisica, Universidade Federal do Rio Grande do Sul, 91500-970 Porto Alegre RS, Brazil

Search for more papers by this author

A. Kanaan,

A. Kanaan

Dep. de Fisica – UFSC, Campus Universitario – Trindade, CEP 88040-900 – Florianopolis SC, Brazil

Search for more papers by this author

J. L. Provencal,

J. L. Provencal

Sharp Laboratory, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA

Search for more papers by this author

M. A. Wood,

M. A. Wood

Department of Physics and Space Sciences, Florida Institute of Technology, 150 W. University Blvd, Melbourne, FL 32901-6975, USA

Search for more papers by this author

J. C. Clemens,

J. C. Clemens

Campus Box 3255, 264 Phillips Hall, Chapel Hill, NC 27599, USA

Search for more papers by this author

S. J. Kleinman,

Corresponding Author

S. J. Kleinman

Iowa State University, Department of Physics and Astronomy, Ames, IA 50011, USA

M. S. O’Brien,

M. S. O’Brien

Department of Physics, Grinnell College, PO Box 805, Grinnell, IA 50112-0806, USA

Search for more papers by this author

R. E. Nather,

R. E. Nather

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

D. E. Winget,

D. E. Winget

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

A. Nitta,

A. Nitta

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

E. W. Klumpe,

E. W. Klumpe

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

M. H. Montgomery,

M. H. Montgomery

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Institute for Astronomy, Türkenschanzstraße 17, A-1180 Vienna, Austria

Search for more papers by this author

T. K. Watson,

T. K. Watson

Information Technology Services, Southwestern University, Georgetown, TX 78626, USA

Search for more papers by this author

P. A. Bradley,

P. A. Bradley

XTA, MS B220, Los Alamos National Laboratory, Los Alamos, NM 874545, USA

Search for more papers by this author

D. J. Sullivan,

D. J. Sullivan

Department of Physics, Victoria University of Wellington, PO Box 600, Wellington, New Zealand

Search for more papers by this author

K. Wu,

K. Wu

Research Centre for Theoretical Astrophysics, School of Physics, University of Sydney, NSW 2006, Australia

Search for more papers by this author

T. M. K. Marar,

T. M. K. Marar

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

S. Seetha,

S. Seetha

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

B. N. Ashoka,

B. N. Ashoka

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

H. S. Mahra,

H. S. Mahra

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

B. C. Bhat,

B. C. Bhat

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

V. C. Babu,

V. C. Babu

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

E. M. Leibowitz,

E. M. Leibowitz

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

S. Hemar,

S. Hemar

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

P. Ibbetson,

P. Ibbetson

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

E. Mashals,

E. Mashals

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

E. Meištas,

Corresponding Author

E. Meištas

Institute of Theoretical Physics and Astronomy, Goštauto 12, Vilnius 2600, Lithuania

P. Moskalik,

P. Moskalik

Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716 Warsaw, Poland

Search for more papers by this author

S. Zoła,

S. Zoła

Astronomical Observatory, Jagiellonian University, ul. Orla 171, 30-244 Cracow, Poland

Mt Suhora Observatory, Cracow Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland

Search for more papers by this author

J. Krzesiński,

J. Krzesiński

Mt Suhora Observatory, Cracow Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland

Search for more papers by this author

G. Pajdosz,

G. Pajdosz

Mt Suhora Observatory, Cracow Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland

Search for more papers by this author

F. Vuille,

Corresponding Author

F. Vuille

Department of Astronomy, University of Cape Town, Rondebosch 7700, South Africa

D. O’Donoghue,

D. O’Donoghue

South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa

Search for more papers by this author

D. A. H. Buckley,

D. A. H. Buckley

South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa

Search for more papers by this author

C.-M. Massacand,

Corresponding Author

C.-M. Massacand

MR, Nordlysobservatoriet, Universitetet i Tromso, N-9037 Tromso, Norway

J. E. Solheim,

J. E. Solheim

MR, Nordlysobservatoriet, Universitetet i Tromso, N-9037 Tromso, Norway

Search for more papers by this author

S. Bard,

S. Bard

University of Oslo, Institute of Theoretical Astrophysics, PO Box 1029 – Blindern, N-0315 Oslo, Norway

Search for more papers by this author

G. Vauclair,

G. Vauclair

Observatoire Midi-Pyrenees, 14 Avenue E. Belin, 31400 Toulouse, France

Search for more papers by this author

O. Giovannini,

Corresponding Author

O. Giovannini

Instituto de Fisica, Universidade Federal do Rio Grande do Sul, 91500-970 Porto Alegre RS, Brazil

S. O. Kepler,

S. O. Kepler

Instituto de Fisica, Universidade Federal do Rio Grande do Sul, 91500-970 Porto Alegre RS, Brazil

Search for more papers by this author

A. Kanaan,

A. Kanaan

Dep. de Fisica – UFSC, Campus Universitario – Trindade, CEP 88040-900 – Florianopolis SC, Brazil

Search for more papers by this author

J. L. Provencal,

J. L. Provencal

Sharp Laboratory, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA

Search for more papers by this author

M. A. Wood,

M. A. Wood

Department of Physics and Space Sciences, Florida Institute of Technology, 150 W. University Blvd, Melbourne, FL 32901-6975, USA

Search for more papers by this author

J. C. Clemens,

J. C. Clemens

Campus Box 3255, 264 Phillips Hall, Chapel Hill, NC 27599, USA

Search for more papers by this author

S. J. Kleinman,

Corresponding Author

S. J. Kleinman

Iowa State University, Department of Physics and Astronomy, Ames, IA 50011, USA

M. S. O’Brien,

M. S. O’Brien

Department of Physics, Grinnell College, PO Box 805, Grinnell, IA 50112-0806, USA

Search for more papers by this author

R. E. Nather,

R. E. Nather

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

D. E. Winget,

D. E. Winget

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

A. Nitta,

A. Nitta

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

E. W. Klumpe,

E. W. Klumpe

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Search for more papers by this author

M. H. Montgomery,

M. H. Montgomery

Astronomy Department, University of Texas at Austin, Austin, TX 78712, USA

Institute for Astronomy, Türkenschanzstraße 17, A-1180 Vienna, Austria

Search for more papers by this author

T. K. Watson,

T. K. Watson

Information Technology Services, Southwestern University, Georgetown, TX 78626, USA

Search for more papers by this author

P. A. Bradley,

P. A. Bradley

XTA, MS B220, Los Alamos National Laboratory, Los Alamos, NM 874545, USA

Search for more papers by this author

D. J. Sullivan,

D. J. Sullivan

Department of Physics, Victoria University of Wellington, PO Box 600, Wellington, New Zealand

Search for more papers by this author

K. Wu,

K. Wu

Research Centre for Theoretical Astrophysics, School of Physics, University of Sydney, NSW 2006, Australia

Search for more papers by this author

T. M. K. Marar,

T. M. K. Marar

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

S. Seetha,

S. Seetha

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

B. N. Ashoka,

B. N. Ashoka

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

H. S. Mahra,

H. S. Mahra

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

B. C. Bhat,

B. C. Bhat

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

V. C. Babu,

V. C. Babu

Technical Physics Divison, ISRO Satellite Centre, Airport Road, Bangalore 560 017, India

Search for more papers by this author

E. M. Leibowitz,

E. M. Leibowitz

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

S. Hemar,

S. Hemar

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

P. Ibbetson,

P. Ibbetson

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

E. Mashals,

E. Mashals

University of Tel Aviv, Department of Physics and Astronomy, Ramat Aviv, Tel Aviv 69978, Israel

Search for more papers by this author

E. Meištas,

Corresponding Author

E. Meištas

Institute of Theoretical Physics and Astronomy, Goštauto 12, Vilnius 2600, Lithuania

P. Moskalik,

P. Moskalik

Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716 Warsaw, Poland

Search for more papers by this author

S. Zoła,

S. Zoła

Astronomical Observatory, Jagiellonian University, ul. Orla 171, 30-244 Cracow, Poland

Mt Suhora Observatory, Cracow Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland

Search for more papers by this author

J. Krzesiński,

J. Krzesiński

Mt Suhora Observatory, Cracow Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland

Search for more papers by this author

G. Pajdosz,

G. Pajdosz

Mt Suhora Observatory, Cracow Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland

Search for more papers by this author

First published: 07 May 2002

https://doi.org/10.1046/j.1365-8711.2000.03369.x

Citations: 6

Share a link

Email
Wechat
Bluesky

Abstract

We present a detailed mode identification performed on the 1994 Whole Earth Telescope (WET) run on GD 358. The results are compared with that obtained for the same star from the 1990 WET data. The two temporal spectra show very few qualitative differences, although amplitude changes are seen in most modes, including the disappearance of the mode identified as k=14 in the 1990 data. The excellent coverage and signal-to-noise ratio obtained during the 1994 run lead to the secure identification of combination frequencies up to fourth order, i.e. peaks that are sums or differences of up to four parent frequencies, including a virtually complete set of second-order frequencies, as expected from harmonic distortion. We show how the third-order frequencies are expected to affect the triplet structure of the normal modes by back-interacting with them. Finally, a search for ℓ=2 modes was unsuccessful, not verifying the suspicion that such modes had been uncovered in the 1990 data set.

References

1 Bradley P. A., Winget D. E., 1994, ApJ, 314, 850
10.1086/174456
Web of Science® Google Scholar
2 Brassard P. Fontaine G., Wesemael F., Tassoul M., 1992, ApJS, 314, 747
10.1086/191704
Web of Science® Google Scholar
3 Brassard P., Fontaine G, Wesemael F., 1995, ApJS, 314, 545
10.1086/192128
Web of Science® Google Scholar
4 Brickhill A. J., 1992, MNRAS, 314, 529
10.1093/mnras/259.3.529
Google Scholar
5 Buchler J. R., Goupil M.-J., Serre TH., 1995, A&A, 314, 405
Google Scholar
6 Dolez N., Vauclair G., 1981, A&A, 314, 375
Google Scholar
7 Dziembowski W., 1977, Acta Aston., 314, 203
Google Scholar
8 Jones P. W., Hansen C. J., Pesnell W. D., Kawaler S. D., 1989, ApJ, 314, 403
10.1086/167019
Web of Science® Google Scholar
9 Kawaler S. D., Hansen C. J., 1989, in G. Wegner, ed., White Dwarfs. Springer-Verlag, Berlin, p. 97
Google Scholar
10 Kawaler S. D., Hansen C. J., Winget D. E., 1986, ApJ, 314, 547
Google Scholar
11 Kepler S. O., 1984, ApJ, 314, 314
10.1086/162601
Web of Science® Google Scholar
12 Nather R. E., 1995, Baltic Astron., 314, 321
Google Scholar
13 Nather R. E., Winget D. E., Clemens J. C., Hansen C. J., Hine B. P., 1990, ApJ, 314, 309
10.1086/169196
Web of Science® Google Scholar
14 O’Donoghue D., 1994, MNRAS, 314, 222
10.1093/mnras/270.2.222
Google Scholar
15 Scargle J. D., 1981, ApJS, 314, 1
10.1086/190706
Web of Science® Google Scholar
16 Scargle J. D., 1982, ApJ, 314, 835
Google Scholar
17 Tassoul M., 1980, ApJS, 314, 469
10.1086/190678
Web of Science® Google Scholar
18 Unno W., Osaki Y., Ando H., 1989, Nonradial Oscillations of Stars, 2nd edn. Univ. Tokyo Press, Tokyo
Google Scholar
19 Vuille F., Brassard P., 2000a, MNRAS, in press 314
10.1046/j.1365-8711.2000.03369.x
Web of Science® Google Scholar
20 Vuille F., Brassard P., 2000b, MNRAS, submitted 314
10.1046/j.1365-8711.2000.03369.x
Web of Science® Google Scholar
21 Warner B., Robinson E. L., 1972, Nature Phys. Sci., 314, 2
10.1038/physci239002a0
Google Scholar
22 Winget D. E., 1988, in J. Christensen-Dalsgaard, S. Frandsen, eds, Advances in Helio- and Asteroseismology. Reidel, Dordrecht, p. 305
Google Scholar
23 Winget D. E., Fontaine G., 1982, in J. P. Cox, C. J. Hansen, eds, Pulsations in Classical and Cataclysmic Variable Stars. Boulder Joint Institute for Laboratory Astrophysics, Boulder, p. 45
Google Scholar
24 Winget D. E., Robinson E. L., Nather R. D., Fontaine G., 1982, ApJ, 314, L11
10.1086/183902
Web of Science® Google Scholar
25 Winget D. E. et al., 1994, ApJ, 314, 839
10.1086/174455
Web of Science® Google Scholar
26 Wu Y., 1998, PhD thesis, California Inst. Tech., Pasadena
Google Scholar

Citing Literature

Volume314, Issue4

June 2000

Pages 689-701

Normal modes and discovery of high-order cross-frequencies in the DBV white dwarf GD 358

Abstract

References

Citing Literature

References

Information

About Wiley Online Library

Help & Support

Opportunities

Connect with Wiley

Normal modes and discovery of high-order cross-frequencies in the DBV white dwarf GD 358

Abstract

References

Citing Literature

References

Related

Information