First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models

M. Chadid, A. Baglin, J. Benkő, G. Bono, E. Chapellier, E. Guggenberger, K. Kolenberg, M. Paparó, E. Poretti, R. Szabó, H. Trinquet, W. W. Weiss

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)

Abstract

In this paper we report on new RR Lyrae stars discovered in the first long run fields (LRc01 and LRa01) of the CoRoT mission. CoRoT frequency analysis of the high quality light curve with an unprecedented photometric accuracy and uninterrupted coverage over long period (∼150 days) are shown. The CoRoT results reveal four of the seven stars affected with the Blazhko effect and showing a very high fraction of the Blazhko stars ever obtained. The CoRoT RRLyrae stars show pulsation periods strongly nonlinear and complex multiplet structures, such as the triplet, quintuplet, septuplet, nonuplet, undecaplet, tredecaplet, quindecaplet and sepdecaplet frequency structures. Additional frequencies are detected as well with a linear combination with the fundamental radial mode, showing a strong evidence for direct detections of nonradial pulsations. We put into evidence new classes of RR Lyrae stars showing the Blazhko double mode RR Lyrae stars (fundamental and second overtone), nonradial and radial (multimodes) pulsations and new behaviour of the Blazhko effect, such as the Blazhko modulation in both mixing modes (second Blazhko effect), the CoRoT Blazhko results are consistent with Stothers'explanation of the Blazhko effect with period and amplitude changes. However, we stress for developing it in further theoretical investigation, with the aim of finding the physical mechanism behind the Blazhko enigma.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages235-239
Number of pages5
Volume1170
DOIs
Publication statusPublished - 2009
EventInternational Conference on Stellar Pulsation: Challenges for Theory and Observation - Santa Fe, NM, United States
Duration: May 31 2009Jun 5 2009

Other

OtherInternational Conference on Stellar Pulsation: Challenges for Theory and Observation
CountryUnited States
CitySanta Fe, NM
Period5/31/096/5/09

Fingerprint

light curve
stars
fine structure
harmonics
modulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Chadid, M., Baglin, A., Benkő, J., Bono, G., Chapellier, E., Guggenberger, E., ... Weiss, W. W. (2009). First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models. In AIP Conference Proceedings (Vol. 1170, pp. 235-239) https://doi.org/10.1063/1.3246451

First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models. / Chadid, M.; Baglin, A.; Benkő, J.; Bono, G.; Chapellier, E.; Guggenberger, E.; Kolenberg, K.; Paparó, M.; Poretti, E.; Szabó, R.; Trinquet, H.; Weiss, W. W.

AIP Conference Proceedings. Vol. 1170 2009. p. 235-239.

Research output: Chapter in Book/Report/Conference proceedingChapter

Chadid, M, Baglin, A, Benkő, J, Bono, G, Chapellier, E, Guggenberger, E, Kolenberg, K, Paparó, M, Poretti, E, Szabó, R, Trinquet, H & Weiss, WW 2009, First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models. in AIP Conference Proceedings. vol. 1170, pp. 235-239, International Conference on Stellar Pulsation: Challenges for Theory and Observation, Santa Fe, NM, United States, 5/31/09. https://doi.org/10.1063/1.3246451
Chadid M, Baglin A, Benkő J, Bono G, Chapellier E, Guggenberger E et al. First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models. In AIP Conference Proceedings. Vol. 1170. 2009. p. 235-239 https://doi.org/10.1063/1.3246451
Chadid, M. ; Baglin, A. ; Benkő, J. ; Bono, G. ; Chapellier, E. ; Guggenberger, E. ; Kolenberg, K. ; Paparó, M. ; Poretti, E. ; Szabó, R. ; Trinquet, H. ; Weiss, W. W. / First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models. AIP Conference Proceedings. Vol. 1170 2009. pp. 235-239
@inbook{66e2e1a5eb994f0599da59850d7d9288,
title = "First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models",
abstract = "In this paper we report on new RR Lyrae stars discovered in the first long run fields (LRc01 and LRa01) of the CoRoT mission. CoRoT frequency analysis of the high quality light curve with an unprecedented photometric accuracy and uninterrupted coverage over long period (∼150 days) are shown. The CoRoT results reveal four of the seven stars affected with the Blazhko effect and showing a very high fraction of the Blazhko stars ever obtained. The CoRoT RRLyrae stars show pulsation periods strongly nonlinear and complex multiplet structures, such as the triplet, quintuplet, septuplet, nonuplet, undecaplet, tredecaplet, quindecaplet and sepdecaplet frequency structures. Additional frequencies are detected as well with a linear combination with the fundamental radial mode, showing a strong evidence for direct detections of nonradial pulsations. We put into evidence new classes of RR Lyrae stars showing the Blazhko double mode RR Lyrae stars (fundamental and second overtone), nonradial and radial (multimodes) pulsations and new behaviour of the Blazhko effect, such as the Blazhko modulation in both mixing modes (second Blazhko effect), the CoRoT Blazhko results are consistent with Stothers'explanation of the Blazhko effect with period and amplitude changes. However, we stress for developing it in further theoretical investigation, with the aim of finding the physical mechanism behind the Blazhko enigma.",
author = "M. Chadid and A. Baglin and J. Benkő and G. Bono and E. Chapellier and E. Guggenberger and K. Kolenberg and M. Papar{\'o} and E. Poretti and R. Szab{\'o} and H. Trinquet and Weiss, {W. W.}",
year = "2009",
doi = "10.1063/1.3246451",
language = "English",
isbn = "9780735407077",
volume = "1170",
pages = "235--239",
booktitle = "AIP Conference Proceedings",

}

TY - CHAP

T1 - First RR Lyrae light curve from CoRoT big challenge and constraint to the theoretical models

AU - Chadid, M.

AU - Baglin, A.

AU - Benkő, J.

AU - Bono, G.

AU - Chapellier, E.

AU - Guggenberger, E.

AU - Kolenberg, K.

AU - Paparó, M.

AU - Poretti, E.

AU - Szabó, R.

AU - Trinquet, H.

AU - Weiss, W. W.

PY - 2009

Y1 - 2009

N2 - In this paper we report on new RR Lyrae stars discovered in the first long run fields (LRc01 and LRa01) of the CoRoT mission. CoRoT frequency analysis of the high quality light curve with an unprecedented photometric accuracy and uninterrupted coverage over long period (∼150 days) are shown. The CoRoT results reveal four of the seven stars affected with the Blazhko effect and showing a very high fraction of the Blazhko stars ever obtained. The CoRoT RRLyrae stars show pulsation periods strongly nonlinear and complex multiplet structures, such as the triplet, quintuplet, septuplet, nonuplet, undecaplet, tredecaplet, quindecaplet and sepdecaplet frequency structures. Additional frequencies are detected as well with a linear combination with the fundamental radial mode, showing a strong evidence for direct detections of nonradial pulsations. We put into evidence new classes of RR Lyrae stars showing the Blazhko double mode RR Lyrae stars (fundamental and second overtone), nonradial and radial (multimodes) pulsations and new behaviour of the Blazhko effect, such as the Blazhko modulation in both mixing modes (second Blazhko effect), the CoRoT Blazhko results are consistent with Stothers'explanation of the Blazhko effect with period and amplitude changes. However, we stress for developing it in further theoretical investigation, with the aim of finding the physical mechanism behind the Blazhko enigma.

AB - In this paper we report on new RR Lyrae stars discovered in the first long run fields (LRc01 and LRa01) of the CoRoT mission. CoRoT frequency analysis of the high quality light curve with an unprecedented photometric accuracy and uninterrupted coverage over long period (∼150 days) are shown. The CoRoT results reveal four of the seven stars affected with the Blazhko effect and showing a very high fraction of the Blazhko stars ever obtained. The CoRoT RRLyrae stars show pulsation periods strongly nonlinear and complex multiplet structures, such as the triplet, quintuplet, septuplet, nonuplet, undecaplet, tredecaplet, quindecaplet and sepdecaplet frequency structures. Additional frequencies are detected as well with a linear combination with the fundamental radial mode, showing a strong evidence for direct detections of nonradial pulsations. We put into evidence new classes of RR Lyrae stars showing the Blazhko double mode RR Lyrae stars (fundamental and second overtone), nonradial and radial (multimodes) pulsations and new behaviour of the Blazhko effect, such as the Blazhko modulation in both mixing modes (second Blazhko effect), the CoRoT Blazhko results are consistent with Stothers'explanation of the Blazhko effect with period and amplitude changes. However, we stress for developing it in further theoretical investigation, with the aim of finding the physical mechanism behind the Blazhko enigma.

UR - http://www.scopus.com/inward/record.url?scp=74049132274&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=74049132274&partnerID=8YFLogxK

U2 - 10.1063/1.3246451

DO - 10.1063/1.3246451

M3 - Chapter

AN - SCOPUS:74049132274

SN - 9780735407077

VL - 1170

SP - 235

EP - 239

BT - AIP Conference Proceedings

ER -