Bibcode
Ramsay, G.; Marsh, T. R.; Kupfer, T.; Dhillon, V. S.; Steeghs, D.; Woudt, P.; Groot, P.
Referencia bibliográfica
Astronomy and Astrophysics, Volume 617, id.A88, 6 pp.
Fecha de publicación:
9
2018
Revista
Número de citas
3
Número de citas referidas
2
Descripción
We present high speed optical photometric observations made using the
NTT and ULTRACAM of the optical counterpart of 3XMMJ051034.6-670353,
which was recently identified as an X-ray source showing a modulation on
a period of 23.6 min. Although the optical counterpart is faint (g =
21.4), we find that the u'g'r' light curves show a periodic modulation
on a period which is consistent with the X-ray period. We also obtained
three low resolution spectra of 3XMMJ051034.6-670353 using the Gemini
South Telescope and GMOS. There is no evidence for strong emission lines
in the optical spectrum of 3XMMJ051034.6-670353. We compare and contrast
the optical and X-ray observations of 3XMMJ051034.6-670353 with the
ultra compact binaries HM Cnc and V407 Vul. We find we can identify a
distribution of binary masses in which stable direct impact accretion
can occur.
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