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

被引：20

作者：

Pablo, H. ^{[1
]}

Shultz, M. ^{[2
,3
]}

Fuller, J. ^{[4
,5
]}

Wade, G. A. ^{[6
]}

Paunzen, E. ^{[7
]}

Mathis, S. ^{[8
,9
,10
]}

Le Bouquin, J. -B. ^{[11
,12
]}

Pigulski, A. ^{[13
]}

Handler, G. ^{[14
]}

Alecian, E. ^{[11
]}

Kuschnig, R. ^{[15
]}

Moffat, A. F. J. ^{[16
,17
]}

Neiner, C. ^{[10
]}

Popowicz, A. ^{[18
]}

Rucinski, S. ^{[19
]}

Smolec, R. ^{[20
]}

Weiss, W. ^{[21
]}

Zwintz, K. ^{[22
]}

机构：

[1] Amer Assoc Variable Star Observers, 49 Bay State Rd, Cambridge, MA 02138 USA

[2] Univ Delaware, Dept Phys & Astron, 217 Sharp Lab, Newark, DE 19716 USA

[3] Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden

[4] CALTECH, TAPIR, Walter Burke Inst Theoret Phys, Mailcode 350-17, Pasadena, CA 91125 USA

[5] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Kohn Hall, Santa Barbara, CA 93106 USA

[6] Royal Mil Coll Canada, Dept Phys & Space Sci, Kingston, ON K7K 7B4, Canada

[7] Masaryk Univ, Dept Theoret Phys & Astrophys, Kotlarska 2, CZ-61137 Brno, Czech Republic

[8] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France

[9] Univ Paris Diderot, CEA, CNRS, AIM,Sorbonne Paris Cite, F-91191 Gif Sur Yvette, France

[10] Univ Paris, Observ Paris, PSL Univ, LESIA,CNRS,Sorbonne Univ, 5 Pl Jules Janssen, F-92195 Meudon, France

[11] Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France

[12] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[13] Uniwersytet Wroclawski, Inst Astron, Kopernika 11, PL-51622 Wroclaw, Poland

[14] Polish Acad Sci, Ctr Astron M Kopernika, Bartycka 18, PL-00716 Warsaw, Poland

[15] Graz Univ Technol, Inst Commun Networks & Satellite Commun, Inffeldgasse 12, A-8010 Graz, Austria

[16] Univ Montreal, Dept Phys, CP 6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada

[17] Univ Montreal, CRAQ, CP 6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada

[18] Silesian Tech Univ, Inst Automat Control, Akad 16, PL-44100 Gliwice, Poland

[19] Univ Toronto, Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

[20] Nicolaus Copernicus Astron Ctr, Bartycka 18, PL-00716 Warsaw, Poland

[21] Univ Wien, Inst Astron, Turkenschanzstr 17, A-1180 Vienna, Austria

[22] Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25-8, A-6020 Innsbruck, Austria

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 488卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

binaries: close; stars: magnetic field; stars: massive; stars: oscillations; SPECTROSCOPIC BINARY; MIMES SURVEY; STARS; FIELDS; VARIABILITY; ATMOSPHERES; DIFFUSION; ROTATION; ORIGIN; BRIGHT;

D O I：

10.1093/mnras/stz1661

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：64 / 77

页数：14

共 20 条

[1] Discovery of magnetospheric interactions in the doubly magnetic hot binary ε Lupi
Biswas, Ayan
Das, Barnali
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Wade, Gregg A.
Shultz, Matthew E.
Cavallaro, Francesco
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Woudt, Patrick A.
Alecian, Evelyne
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 523 (04) : 5155 - 5170
[2] Observing the Massive Binary η Carinae with BRITE
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Pablo, Herbert
Moffat, Anthony F. J.
Sterken, Christiaan
Pigulski, Andrzej
Koenigsberger, Gloria
Wade, Gregg A.
3RD BRITE SCIENCE CONFERENCE, 2018, 8 : 123 - 127
[3] BRITE-Constellation reveals evidence for pulsations in the enigmatic binary η Carinae
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Pablo, Herbert
Sterken, Christiaan
Pigulski, Andrzej
Koenigsberger, Gloria
Moffat, Anthony F. J.
Madura, Thomas I.
Hamaguchi, Kenji
Corcoran, Michael F.
Damineli, Augusto
Gull, Theodore R.
Hillier, D. John
Weigelt, Gerd
Handler, Gerald
Popowicz, Adam
Wade, Gregg A.
Weiss, Werner W.
Zwintz, Konstanze
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 475 (04) : 5417 - 5423
[4] Massive pulsating stars observed by BRITE-Constellation I. The triple system β Centauri (Agena)
Pigulski, A.
Cugier, H.
Popowicz, A.
Kuschnig, R.
Moffat, A. F. J.
Rucinski, S. M.
Schwarzenberg-Czerny, A.
Weiss, W. W.
Handler, G.
Wade, G. A.
Koudelka, O.
Matthews, J. M.
Mochnacki, St.
Orleanski, P.
Pablo, H.
Ramiaramanantsoa, T.
Whittaker, G.
Zoclonska, E.
Zwintz, K.
ASTRONOMY & ASTROPHYSICS, 2016, 588
[5] DOUBLY DIFFERENTIAL CROSS-SECTION FOR BINARY ENCOUNTER WITH MASSIVE PROJECTILE AND ISOTROPIC TARGET VELOCITIES
DRAPER, JE
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1982, 308 (04): : 289 - 299
[6] Physical Properties of the Massive Magnetic Binary θ1 OriC Components
Balega, Yu. Yu.
Chentsov, E. L.
Rzaev, A. Kh.
Weigelt, G.
PHYSICS AND EVOLUTION OF MAGNETIC AND RELATED STARS, 2015, 494 : 57 - 62
[7] On the Measuring Standardization Problems of Magnetic Qualities of Massive Steels.
Galas, Jiri
1600, (75):
[8] A Massive Magnetic Helium Atmosphere White Dwarf Binary in a Young Star Cluster
Richer, Harvey B.
Kerr, Ronan
Heyl, Jeremy
Caiazzo, Ilaria
Cummings, Jeffrey
Bergeron, Pierre
Dufour, Patrick
ASTROPHYSICAL JOURNAL, 2019, 880 (02):
[9] Magnetic field estimates for accreting neutron stars in massive binary systems and models of magnetic field decay
Chashkina, A.
Popov, S. B.
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[10] Measuring coalescing massive binary black holes with gravitational waves: The impact of spin-induced precession
Lang, Ryan N.
Hughes, Scott A.
PHYSICAL REVIEW D, 2006, 74 (12):

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