epsilon Lupi: measuring the heartbeat of a doubly magnetic
massive binary with BRITE Constellation

J 2019

epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation

PABLO, Herbert; Matt SHULTZ; Jim FULLER; Gregg WADE; Ernst PAUNZEN et. al.

Základní údaje

Originální název

epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation

Autoři

Vydání

Monthly Notices of the Royal Astronomical Society, OXFORD, OXFORD UNIV PRESS, 2019, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.357

Kód RIV

RIV/00216224:14310/19:00111174

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1093/mnras/stz1661

UT WoS

000482319700005

EID Scopus

2-s2.0-85078501619

Klíčová slova anglicky

binaries: close; stars: magnetic field; stars: massive; stars: oscillations

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 25. 3. 2020 19:15, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

epsilon Lupi A is a binary system consisting of two main-sequence early B-type stars Aa and Ab in a short period, moderately eccentric orbit. The close binary pair is the only doubly magnetic massive binary currently known. Using photometric data from the BRITE Constellation we identify a modest heartbeat variation. Combining the photometry with radial velocities of both components we determine a full orbital solution including empirical masses and radii. These results are compared with stellar evolution models as well as interferometry and the differences discussed. We also find additional photometric variability at several frequencies, finding it unlikely these frequencies can be caused by tidally excited oscillations. We do, however, determine that these signals are consistent with gravity mode pulsations typical for slowly pulsating B stars. Finally we discuss how the evolution of this system will be affected by magnetism, determining that tidal interactions will still be dominant.

Citovat

PABLO, Herbert; Matt SHULTZ; Jim FULLER; Gregg WADE; Ernst PAUNZEN; Stephane MATHIS; Jean-Baptiste LE BOUQUIN; Andrzej PIGULSKI; Gerald HANDLER; Evelyne ALECIAN; Rainer KUSCHNIG; Anthony MOFFAT; Coralie NEINER; Adam POPOWICZ; Slavek RUCINSKI; Radoslaw SMOLEC; Werner WEISS a Konstanze ZWINTZ. epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation. Monthly Notices of the Royal Astronomical Society. OXFORD: OXFORD UNIV PRESS, 2019, roč. 488, č. 1, s. 64-77. ISSN 0035-8711. Dostupné z: https://doi.org/10.1093/mnras/stz1661.

@article{1576479,
   author = {Pablo, Herbert and Shultz, Matt and Fuller, Jim and Wade, Gregg and Paunzen, Ernst and Mathis, Stephane and Le Bouquin, JeanandBaptiste and Pigulski, Andrzej and Handler, Gerald and Alecian, Evelyne and Kuschnig, Rainer and Moffat, Anthony and Neiner, Coralie and Popowicz, Adam and Rucinski, Slavek and Smolec, Radoslaw and Weiss, Werner and Zwintz, Konstanze},
   article_location = {OXFORD},
   article_number = {1},
   doi = {https://doi.org/10.1093/mnras/stz1661},
   keywords = {binaries: close; stars: magnetic field; stars: massive; stars: oscillations},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation},
   url = {https://academic.oup.com/mnras/article-abstract/488/1/64/5521912?redirectedFrom=fulltext},
   volume = {488},
   year = {2019}
}

TY  - JOUR
ID  - 1576479
AU  - Pablo, Herbert - Shultz, Matt - Fuller, Jim - Wade, Gregg - Paunzen, Ernst - Mathis, Stephane - Le Bouquin, Jean-Baptiste - Pigulski, Andrzej - Handler, Gerald - Alecian, Evelyne - Kuschnig, Rainer - Moffat, Anthony - Neiner, Coralie - Popowicz, Adam - Rucinski, Slavek - Smolec, Radoslaw - Weiss, Werner - Zwintz, Konstanze
PY  - 2019
TI  - epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 488
IS  - 1
SP  - 64-77
EP  - 64-77
PB  - OXFORD UNIV PRESS
SN  - 00358711
KW  - binaries: close
KW  - stars: magnetic field
KW  - stars: massive
KW  - stars: oscillations
UR  - https://academic.oup.com/mnras/article-abstract/488/1/64/5521912?redirectedFrom=fulltext
L2  - https://academic.oup.com/mnras/article-abstract/488/1/64/5521912?redirectedFrom=fulltext
N2  - epsilon Lupi A is a binary system consisting of two main-sequence early B-type stars Aa and Ab in a short period, moderately eccentric orbit. The close binary pair is the only doubly magnetic massive binary currently known. Using photometric data from the BRITE Constellation we identify a modest heartbeat variation. Combining the photometry with radial velocities of both components we determine a full orbital solution including empirical masses and radii. These results are compared with stellar evolution models as well as interferometry and the differences discussed. We also find additional photometric variability at several frequencies, finding it unlikely these frequencies can be caused by tidally excited oscillations. We do, however, determine that these signals are consistent with gravity mode pulsations typical for slowly pulsating B stars. Finally we discuss how the evolution of this system will be affected by magnetism, determining that tidal interactions will still be dominant.
ER  -

PABLO, Herbert; Matt SHULTZ; Jim FULLER; Gregg WADE; Ernst PAUNZEN; Stephane MATHIS; Jean-Baptiste LE BOUQUIN; Andrzej PIGULSKI; Gerald HANDLER; Evelyne ALECIAN; Rainer KUSCHNIG; Anthony MOFFAT; Coralie NEINER; Adam POPOWICZ; Slavek RUCINSKI; Radoslaw SMOLEC; Werner WEISS a Konstanze ZWINTZ. epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation. \textit{Monthly Notices of the Royal Astronomical Society}. OXFORD: OXFORD UNIV PRESS, 2019, roč.~488, č.~1, s.~64-77. ISSN~0035-8711. Dostupné z: https://doi.org/10.1093/mnras/stz1661.

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