A noninteracting low-mass black hole–giant star binary system

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A noninteracting low-mass black hole–giant star binary system. / Thompson, Todd A.; Kochanek, Christopher S.; Stanek, Krzysztof Z.; Badenes, Carles; Post, Richard S.; Jayasinghe, Tharindu; Latham, David W.; Bieryla, Allyson; Esquerdo, Gilbert A.; Berlind, Perry; Calkins, Michael L.; Tayar, Jamie; Lindegren, Lennart; Johnson, Jennifer A.; Holoien, Thomas W.S.; Auchettl, Katie; Covey, Kevin.

I: Science, Vol. 366, Nr. 6465, 2019, s. 637-640.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Thompson, TA, Kochanek, CS, Stanek, KZ, Badenes, C, Post, RS, Jayasinghe, T, Latham, DW, Bieryla, A, Esquerdo, GA, Berlind, P, Calkins, ML, Tayar, J, Lindegren, L, Johnson, JA, Holoien, TWS, Auchettl, K & Covey, K 2019, 'A noninteracting low-mass black hole–giant star binary system', Science, vol. 366, nr. 6465, s. 637-640. https://doi.org/10.1126/science.aau4005

APA

Thompson, T. A., Kochanek, C. S., Stanek, K. Z., Badenes, C., Post, R. S., Jayasinghe, T., ... Covey, K. (2019). A noninteracting low-mass black hole–giant star binary system. Science, 366(6465), 637-640. https://doi.org/10.1126/science.aau4005

CBE

Thompson TA, Kochanek CS, Stanek KZ, Badenes C, Post RS, Jayasinghe T, Latham DW, Bieryla A, Esquerdo GA, Berlind P, Calkins ML, Tayar J, Lindegren L, Johnson JA, Holoien TWS, Auchettl K, Covey K. 2019. A noninteracting low-mass black hole–giant star binary system. Science. 366(6465):637-640. https://doi.org/10.1126/science.aau4005

MLA

Vancouver

Thompson TA, Kochanek CS, Stanek KZ, Badenes C, Post RS, Jayasinghe T et al. A noninteracting low-mass black hole–giant star binary system. Science. 2019;366(6465):637-640. https://doi.org/10.1126/science.aau4005

Author

Thompson, Todd A. ; Kochanek, Christopher S. ; Stanek, Krzysztof Z. ; Badenes, Carles ; Post, Richard S. ; Jayasinghe, Tharindu ; Latham, David W. ; Bieryla, Allyson ; Esquerdo, Gilbert A. ; Berlind, Perry ; Calkins, Michael L. ; Tayar, Jamie ; Lindegren, Lennart ; Johnson, Jennifer A. ; Holoien, Thomas W.S. ; Auchettl, Katie ; Covey, Kevin. / A noninteracting low-mass black hole–giant star binary system. I: Science. 2019 ; Vol. 366, Nr. 6465. s. 637-640.

RIS

TY - JOUR

T1 - A noninteracting low-mass black hole–giant star binary system

AU - Thompson, Todd A.

AU - Kochanek, Christopher S.

AU - Stanek, Krzysztof Z.

AU - Badenes, Carles

AU - Post, Richard S.

AU - Jayasinghe, Tharindu

AU - Latham, David W.

AU - Bieryla, Allyson

AU - Esquerdo, Gilbert A.

AU - Berlind, Perry

AU - Calkins, Michael L.

AU - Tayar, Jamie

AU - Lindegren, Lennart

AU - Johnson, Jennifer A.

AU - Holoien, Thomas W.S.

AU - Auchettl, Katie

AU - Covey, Kevin

PY - 2019

Y1 - 2019

N2 - Black hole binary systems with companion stars are typically found via their x-ray emission, generated by interaction and accretion. Noninteracting binaries are expected to be plentiful in the Galaxy but must be observed using other methods. We combine radial velocity and photometric variability data to show that the bright, rapidly rotating giant star 2MASS J05215658+4359220 is in a binary system with a massive unseen companion. The system has an orbital period of ~83 days and near-zero eccentricity. The photometric variability period of the giant is consistent with the orbital period, indicating star spots and tidal synchronization. Constraints on the giant’s mass and radius imply that the unseen companion is 3:3þ - 2 0 : : 8 7 solar masses, indicating that it is a noninteracting low-mass black hole or an unexpectedly massive neutron star.

AB - Black hole binary systems with companion stars are typically found via their x-ray emission, generated by interaction and accretion. Noninteracting binaries are expected to be plentiful in the Galaxy but must be observed using other methods. We combine radial velocity and photometric variability data to show that the bright, rapidly rotating giant star 2MASS J05215658+4359220 is in a binary system with a massive unseen companion. The system has an orbital period of ~83 days and near-zero eccentricity. The photometric variability period of the giant is consistent with the orbital period, indicating star spots and tidal synchronization. Constraints on the giant’s mass and radius imply that the unseen companion is 3:3þ - 2 0 : : 8 7 solar masses, indicating that it is a noninteracting low-mass black hole or an unexpectedly massive neutron star.

U2 - 10.1126/science.aau4005

DO - 10.1126/science.aau4005

M3 - Article

VL - 366

SP - 637

EP - 640

JO - Science (New York, N.Y.)

JF - Science (New York, N.Y.)

SN - 1095-9203

IS - 6465

ER -