A 6.5-day periodicity in the recurrent nova V404 Cygni implying the presence of a black hole

Bibcode
1992Natur.355..614C
DOI
10.1038/355614a0
Casares, J.; Charles, P. A.; Naylor, T.
Referencia bibliográfica

Nature (ISSN 0028-0836), vol. 355, Feb. 13, 1992, p. 614-617.

Fecha de publicación:
2
1992
Número de autores
3
Número de autores del IAC
1
Número de citas
250
Número de citas referidas
220
Descripción
Two years after its outburst in 1989, the William Herschel Telescope has been used to find absorption features in V404 Cyg characteristic of a late G or early K star with a radial velocity curve of amplitude 211 +/- 4 km/s and period 6.473 +/- 0.001 days. The deduced mass function of 6.26 +/- 0.31 solar masses is a firm lower limit to the mass of the compact object, which for reasonable assumptions of orbital inclination and companion star mass must be a black hole with probable mass in the range 8-15.5 solar masses.
Tipo
Con árbitro
Novae
Efemérides

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