Everything that glitters is not gold: V1315 Cas is not a
dormant black hole

J 2023

Everything that glitters is not gold: V1315 Cas is not a dormant black hole

ZAK, J., D. JONES, H. M. J. BOFFIN, P. G. BECK, J. KLENCKI et. al.

Základní údaje

Originální název

Everything that glitters is not gold: V1315 Cas is not a dormant black hole

Autoři

ZAK, J. (garant), D. JONES, H. M. J. BOFFIN, P. G. BECK, J. KLENCKI, J. BODENSTEINER, T. SHENAR, H. VAN WINCKEL, Marek SKARKA (203 Česká republika, domácí), K. ARELLANO-CÓRDOVA, J. VIUHO, P. SOWICKA, E. W. GUENTHER a A. HATZES

Vydání

Monthly Notices of the Royal Astronomical Society, Oxford University Press, 2023, 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: 4.800 v roce 2022

Kód RIV

RIV/00216224:14310/23:00133043

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1093/mnras/stad2137

UT WoS

001045132300004

Klíčová slova anglicky

techniques: radial velocities; techniques: spectroscopic; binaries: general; binaries: spectroscopic; stars: variables: general

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 16. 1. 2024 12:23, Mgr. Marie Šípková, DiS.

Anotace

V originále

The quest for quiet or dormant black holes has been ongoing since several decades. Ellipsoidal variables possibly indicate the existence of a very high-mass invisible companion and are thought to be one of the best ways to find such dormant black holes. This, however, is not a panacea as we show here with one example. We indeed report the discovery of a new semidetached interacting binary, V1315 Cas, discovered as an ellipsoidal variable. Using data from photometric surveys (ASAS-SN, TESS) and high-resolution spectroscopy, we derived a nearly circular orbit with an orbital period of P-orb = 34.54 d. The binary system consists of an evolved F-type star primary that is likely still filling its Roche lobe and a B-type star secondary. Using PHOEBE2, we derived the following masses and radii: for the primary, M-p = 0.84 +/- 0.03 M-circle dot and R-p = 18.51(-0.07)(+0.12) R-circle dot; for the secondary, M-s = 7.3 +/- 0.3 M-circle dot and R-s = 4.02(-2.0)(+2.3) R-circle dot. Modelling the evolution of the system with MESA, we found an age of similar to 7.7 x 10(7) yr. The system is at the end of a period of rapid non-conservative mass transfer that reversed its mass ratio, while significantly widening its orbit. The primary shows carbon depletion and nitrogen overabundance, indicative of CNO-processed material being exposed due to mass transfer. An infrared excess and stationary H aemission suggest the presence of a circumstellar or circumbinary disc. V1315 Cas will likely become a detached stripped star binary.

Citovat

ZAK, J., D. JONES, H. M. J. BOFFIN, P. G. BECK, J. KLENCKI, J. BODENSTEINER, T. SHENAR, H. VAN WINCKEL, Marek SKARKA, K. ARELLANO-CÓRDOVA, J. VIUHO, P. SOWICKA, E. W. GUENTHER a A. HATZES. Everything that glitters is not gold: V1315 Cas is not a dormant black hole. Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2023, roč. 524, č. 4, s. 5749-5761. ISSN 0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stad2137.

@article{2361577,
   author = {Zak, J. and Jones, D. and Boffin, H. M. J. and Beck, P. G. and Klencki, J. and Bodensteiner, J. and Shenar, T. and Van Winckel, H. and Skarka, Marek and ArellanoandCórdova, K. and Viuho, J. and Sowicka, P. and Guenther, E. W. and Hatzes, A.},
   article_number = {4},
   doi = {http://dx.doi.org/10.1093/mnras/stad2137},
   keywords = {techniques: radial velocities; techniques: spectroscopic; binaries: general; binaries: spectroscopic; stars: variables: general},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {Everything that glitters is not gold: V1315 Cas is not a dormant black hole},
   url = {https://doi.org/10.1093/mnras/stad2137},
   volume = {524},
   year = {2023}
}

TY  - JOUR
ID  - 2361577
AU  - Zak, J. - Jones, D. - Boffin, H. M. J. - Beck, P. G. - Klencki, J. - Bodensteiner, J. - Shenar, T. - Van Winckel, H. - Skarka, Marek - Arellano-Córdova, K. - Viuho, J. - Sowicka, P. - Guenther, E. W. - Hatzes, A.
PY  - 2023
TI  - Everything that glitters is not gold: V1315 Cas is not a dormant black hole
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 524
IS  - 4
SP  - 5749-5761
EP  - 5749-5761
PB  - Oxford University Press
SN  - 00358711
KW  - techniques: radial velocities
KW  - techniques: spectroscopic
KW  - binaries: general
KW  - binaries: spectroscopic
KW  - stars: variables: general
UR  - https://doi.org/10.1093/mnras/stad2137
N2  - The quest for quiet or dormant black holes has been ongoing since several decades. Ellipsoidal variables possibly indicate the existence of a very high-mass invisible companion and are thought to be one of the best ways to find such dormant black holes. This, however, is not a panacea as we show here with one example. We indeed report the discovery of a new semidetached interacting binary, V1315 Cas, discovered as an ellipsoidal variable. Using data from photometric surveys (ASAS-SN, TESS) and high-resolution spectroscopy, we derived a nearly circular orbit with an orbital period of P-orb = 34.54 d. The binary system consists of an evolved F-type star primary that is likely still filling its Roche lobe and a B-type star secondary. Using PHOEBE2, we derived the following masses and radii: for the primary, M-p = 0.84 +/- 0.03 M-circle dot and R-p = 18.51(-0.07)(+0.12) R-circle dot; for the secondary, M-s = 7.3 +/- 0.3 M-circle dot and R-s = 4.02(-2.0)(+2.3) R-circle dot. Modelling the evolution of the system with MESA, we found an age of similar to 7.7 x 10(7) yr. The system is at the end of a period of rapid non-conservative mass transfer that reversed its mass ratio, while significantly widening its orbit. The primary shows carbon depletion and nitrogen overabundance, indicative of CNO-processed material being exposed due to mass transfer. An infrared excess and stationary H aemission suggest the presence of a circumstellar or circumbinary disc. V1315 Cas will likely become a detached stripped star binary.
ER  -

ZAK, J., D. JONES, H. M. J. BOFFIN, P. G. BECK, J. KLENCKI, J. BODENSTEINER, T. SHENAR, H. VAN WINCKEL, Marek SKARKA, K. ARELLANO-CÓRDOVA, J. VIUHO, P. SOWICKA, E. W. GUENTHER a A. HATZES. Everything that glitters is not gold: V1315 Cas is not a dormant black hole. \textit{Monthly Notices of the Royal Astronomical Society}. Oxford University Press, 2023, roč.~524, č.~4, s.~5749-5761. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stad2137.

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