Pulsating B-type Stars in the Open Cluster NGC 884: Frequencies, Mode Identification, and Asteroseismology

[en] Recent progress in the seismic interpretation of field β Cep stars has resulted in improvements of the physical description in the stellar structure and evolution model computations of massive stars. Further asteroseismic constraints can be obtained from studying ensembles of stars in a young open cluster, which all have similar age, distance, and chemical composition. We present an observational asteroseismology study based on the discovery of numerous multi-periodic and mono-periodic B stars in the open cluster NGC 884. We describe a thorough investigation of the pulsational properties of all B-type stars in the cluster. Overall, our detailed frequency analysis resulted in 115 detected frequencies in 65 stars. We found 36 mono-periodic, 16 bi-periodic, 10 tri-periodic, and 2 quadru-periodic stars and one star with nine independent frequencies. We also derived the amplitudes and phases of all detected frequencies in the U, B, V, and I filter, if available. We achieved unambiguous identifications of the mode degree for 12 of the detected frequencies in nine of the pulsators. Imposing the identified degrees and measured frequencies of the radial, dipole, and quadrupole modes of five pulsators led to a seismic cluster age estimate of log (age/yr) = 7.12-7.28 from a comparison with stellar models. Our study is a proof-of-concept for and illustrates the current status of ensemble asteroseismology of a young open cluster.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Saesen, S.; Observatoire de Genève, Université de Genève, Chemin des Maillettes 51, 1290 Sauverny, Switzerland ; Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium

Briquet, Maryline ; Université de Liège - ULiège

Aerts, C.; Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium ; Department of Astrophysics, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands

Miglio, A.; School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK

Carrier, F.; Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium)

Language :

English

Title :

Pulsating B-type Stars in the Open Cluster NGC 884: Frequencies, Mode Identification, and Asteroseismology

Publication date :

01 October 2013

Journal title :

Astronomical Journal

ISSN :

0004-6256

eISSN :

1538-3881

Publisher :

American Astronomical Society, United States

Volume :

146

Pages :

102

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://adsabs.harvard.edu/abs/2013AJ....146..102S
http://de.arxiv.org/abs/1307.4256

Available on ORBi :

since 09 October 2013

Statistics

Number of views

29 (2 by ULiège)

Number of downloads

128 (2 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

Bibliography

Aerts, C. 2000, A&A, 361, 245
Aerts, C., Briquet, M., Degroote, P., Thoul, A., & van Hoolst, T. 2011, A&A, 534, A98
Aerts, C., Christensen-Dalsgaard, J., & Kurtz, D. W. 2010, Asteroseismology (Heidelberg: Springer)
Aerts, C., De Cat, P., & Cuypers, J. et al. 1998, A&A, 329, 137
Aerts, C., Lamers, H. J. G. L. M., & Molenberghs, G. 2004, A&A, 418, 639
Arenou, F., Grenon, M., & Gomez, A. 1992, A&A, 258, 104
Asplund, M., Grevesse, N., & Sauval, A. J. 2005, Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis (ASP Conf. Ser. 336), ed. T. G. Barnes III & F. N. Bash (San Francisco, CA: ASP), 25
Ausseloos, M., Aerts, C., Lefever, K., Davis, J., & Harmanec, P. 2006, A&A, 455, 259 (Pubitemid 44258607)
Balona, L. A., Dziembowski, W. A., & Pamyatnykh, A. 1997, MNRAS, 289, 25
Balona, L. A., Pigulski, A., & Cat, P. D. et al. 2011, MNRAS, 413, 2403
Breger, M., Stich, J., & Garrido, R. et al. 1993, A&A, 271, 482
Briquet, M., Aerts, C., & Baglin, A. et al. 2011, A&A, 527, A112
Briquet, M., Morel, T., & Thoul, A. et al. 2007, MNRAS, 381, 1482
Briquet, M., Uytterhoeven, K., & Morel, T. et al. 2009, A&A, 506, 269
Currie, T., Hernandez, J., & Irwin, J. et al. 2010, ApJS, 186, 191
Daszyńska-Daszkiewicz, J., Dziembowski, W. A., Pamyatnykh, A. A., & Goupil, M.-J. 2002, A&A, 392, 151
De Cat, P., Briquet, M., & Aerts, C. et al. 2007, A&A, 463, 243
De Cat, P., Briquet, M., & Daszyńska-Daszkiewicz, J. et al. 2005, A&A, 432, 1013 (Pubitemid 40402080)
De Ridder, J., Telting, J. H., & Balona, L. A. et al. 2004, MNRAS, 351, 324 (Pubitemid 38830347)
Degroote, P., Aerts, C., & Baglin, A. et al. 2010, Natur, 464, 259
Degroote, P., Briquet, M., & Catala, C. et al. 2009, A&A, 506, 111
Desmet, M., Briquet, M., & Thoul, A. et al. 2009, MNRAS, 396, 1460
Dupret, M.-A. 2002, PhD thesis, Univ. de Liège
Dupret, M.-A., De Ridder, J., & De Cat, P. et al. 2003, A&A, 398, 677
Dupret, M.-A., De Ridder, J., Neuforge, C., Aerts, C., & Scuflaire, R. 2002, A&A, 385, 563
Dziembowski, W. A. & Pamyatnykh, A. A. 2008, MNRAS, 385, 2061
Flower, P. J. 1996, ApJ, 469, 355 (Pubitemid 126125100)
Handler, G., Jerzykiewicz, M., & Rodríguez, E. et al. 2006, MNRAS, 365, 327 (Pubitemid 43423509)
Handler, G., Matthews, J. M., & Eaton, J. A. et al. 2009, ApJL, 698, L56
Handler, G. & Meingast, S. 2011, A&A, 533, A70
Handler, G., Shobbrook, R. R., & Jerzykiewicz, M. et al. 2004, MNRAS, 347, 454 (Pubitemid 38069154)
Handler, G., Shobbrook, R. R., & Mokgwetsi, T. 2005, MNRAS, 362, 612 (Pubitemid 41322891)
Handler, G., Shobbrook, R. R., & Uytterhoeven, K. et al. 2012, MNRAS, 424, 2380
Handler, G., Shobbrook, R. R., & Vuthela, F. F. et al. 2003, MNRAS, 341, 1005 (Pubitemid 37268822)
Handler, G., Tuvikene, T., & Lorenz, D. et al. 2008, CoAst, 157, 315
Hekker, S., Basu, S., & Stello, D. et al. 2011, A&A, 530, A100
Heynderickx, D., Waelkens, C., & Smeyers, P. 1994, A&AS, 105, 447
Huang, W. & Gies, D. R. 2006, ApJ, 648, 591 (Pubitemid 44414237)
Jerzykiewicz, M., Kopacki, G., Pigulski, A., Kołaczkowski, Z., & Kim, S.-L. 2011, AcA, 61, 247
Krzesiński, J. 1998, A Half Century of Stellar Pulsation Interpretation (ASP Conf. Ser. 135), ed. P. A. Bradley & J. A. Guzik (San Francisco, CA: ASP), 157
Krzesiński, J. & Pigulski, A. 1997, A&A, 325, 987
Kunzli, M., North, P., Kurucz, R. L., & Nicolet, B. 1997, A&AS, 122, 51
Lenz, P. & Breger, M. 2005, CoAst, 146, 53
Maeder, A. 2009, Physics, Formation and Evolution of Rotating Stars (Heidelberg: Springer)
Majewska, A., Pigulski, A., & Rucinski, S. M. 2008, CoAst, 157, 338
Malchenko, S. L. 2007, 14th Young Scientists Conference on Astronomy and Space Physics, ed. G. Ivashchenko & A. Golovin (Kyiv: Kyivskyi Universytet), 59
Marsh Boyer, A. N., McSwain, M. V., Aragona, C., & Ou-Yang, B. 2012, AJ, 144, 158
Meylan, G. & Hauck, B. 1981, A&AS, 46, 281
Michalska, G., Pigulski, A., Stȩlicki, M., & Narwid, A. 2009, AcA, 59, 349
Miglio, A., Brogaard, K., & Stello, D. et al. 2012, MNRAS, 419, 2077
Miglio, A., Montalbán, J., Eggenberger, P., & Noels, A. 2008, AN, 329, 529
Montalbán, J., Miglio, A., Eggenberger, P., & Noels, A. 2008, AN, 329, 535
Montgomery, M. H. & O'Donoghue, D. 1999, DSSN, 13, 28
Morel, T., Butler, K., Aerts, C., Neiner, C., & Briquet, M. 2006, A&A, 457, 651 (Pubitemid 44546141)
Percy, J. R. 1972, PASP, 84, 420
Pigulski, A., Handler, G., & Michalska, G. et al. 2007, CoAst, 150, 191
Poretti, E. & Zerbi, F. 1993, A&A, 268, 369
Rufener, F. 1964, PGenA, 66, 413
Rufener, F. 1985, Calibration of Fundamental Stellar Quantities (IAU Symp. 111), ed. D. S. Hayes, L. E. Pasinetti, & A. G. D. Philip (Cambridge: Cambridge Univ. Press), 253
Saesen, S., Carrier, F., & Pigulski, A. et al. 2009, CoAst, 158, 179
Saesen, S., Carrier, F., & Pigulski, A. et al. 2010, A&A, 515, A16
Saesen, S., Pigulski, A., & Carrier, F. et al. 2008, JPhCS, 118, 012071
Schwarzenberg-Czerny, A. 1991, MNRAS, 253, 198
Scuflaire, R., Montalbán, J., & Théado, S. et al. 2008a, Ap&SS, 316, 149
Scuflaire, R., Théado, S., & Montalbán, J. et al. 2008b, Ap&SS, 316, 83
Seaton, M. J. 2005, MNRAS, 362, L1
Slesnick, C. L., Hillenbrand, L. A., & Massey, P. 2002, ApJ, 576, 880 (Pubitemid 37094969)
Southworth, J., Maxted, P. F. L., & Smalley, B. 2004a, MNRAS, 349, 547 (Pubitemid 38482820)
Southworth, J., Zucker, S., Maxted, P. F. L., & Smalley, B. 2004b, MNRAS, 355, 986
Stankov, A. & Handler, G. 2005, ApJS, 158, 193 (Pubitemid 41020928)
Stello, D., Huber, D., & Kallinger, T. et al. 2011, ApJL, 737, L10
Strom, S. E., Wolff, S. C., & Dror, D. H. A. 2005, AJ, 129, 809 (Pubitemid 40390558)
Telting, J. H., Abbott, J. B., & Schrijvers, C. 2001, A&A, 377, 104
Telting, J. H. & Schrijvers, C. 1998, A&A, 339, 150
Torres, G. 2010, AJ, 140, 1158
Uribe, A., García-Varela, J.-A., Sabogal-Martínez, B.-E., Higuera, G., M. A., & Brieva, E. 2002, PASP, 114, 233 (Pubitemid 36937910)
Waelkens, C., Lampens, P., & Heynderickx, D. et al. 1990, A&AS, 83, 11