J/other/NatAs/6.1085 Light curve for VFTS 243 (Shenar+, 2022)
An X-ray quiet black hole born with a negligible kick in a massive binary
within the LMC.
Shenar T., Sana H., Mahy L., El-Badry K., Marchant P., Langer N.,
Hawcroft C., Fabry M., Sen K., Almeida L.A., Abdul-Masih M.,
Bodensteiner J., Crowther P.A., Gieles M., Gromadzki M., Henault-Brunet V.,
Herrero A., de Koter A., Iwanek P., Kozlowski S., Lennon D.J.,
Maiz Apellaniz J., Mroz P., Moffat A.F.J., Picco A., Pietrukowicz P.,
Poleski R., Rybicki K., Schneider F.R.N., Skowron D.M., Skowron J.,
Soszynski I., Szymanski M.K., Toonen S., Udalski A., Ulaczyk K., Vink J.S.,
Wrona M.
<Nature Astronomy, 6, 1085-1092 (2022)>
=2022NatAs...6.1085S 2022NatAs...6.1085S (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Photometry ; Optical
Keywords: astrophysics - high energy astrophysical phenomena -
astrophysics of Galaxies - solar and stellar astrophysics
Abstract:
Stellar-mass black holes are the final remnants of stars born with
more than 15 solar masses. Billions are expected to reside in the
Local Group, yet only a few are known, mostly detected through X-rays
emitted as they accrete material from a companion star. Here, we
report on VFTS 243: a massive X-ray-faint binary in the Large
Magellanic Cloud. With an orbital period of 10.4d, it comprises an
O-type star of 25 solar masses and an unseen companion of at least
nine solar masses. Our spectral analysis excludes a non-degenerate
companion at a 5σ confidence level. The minimum companion mass
implies that it is a black hole. No other X-ray-quiet black hole is
unambiguously known outside our Galaxy. The (near-)circular orbit and
kinematics of VFTS 243 imply that the collapse of the progenitor into
a black hole was associated with little or no ejected material or
black-hole kick. Identifying such unique binaries substantially
impacts the predicted rates of gravitational-wave detections and
properties of core-collapse supernovae across the cosmos.
Description:
OGLE III and IV light curve for VFTS 24.
Objects:
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RA (2000) DE Designation(s)
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05 38 08.41 -69 09 19.0 VFTS 243 = TIC 277299822
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
vfts243.dat 65 1239 OGLE III and IV light curve for VFTS 243
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Byte-by-byte Description of file: vfts243.dat
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Bytes Format Units Label Explanations
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1- 20 F20.15 d JD Julian date (JD-2450000)
22- 41 F20.17 mag Imag OGLE I magnitude
43- 65 F23.21 mag e_Imag rms uncertainty on OGLE I magnitude
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Acknowledgements:
Tomer Shenar, T.Shenar(at)uva.nl
(End) Patricia Vannier [CDS] 26-May-2022