18 citations · 59 across the 5 of their papers we have counts for
5 papers
V Sge: Supersoft Source or Exotic Hot Binary? I. An X-Shooter campaign in the high state
Pasi Hakala, Phil Charles, Pablo Rodríguez-Gil
V Sge is a peculiar, highly luminous long-period (12.34h) binary star that can display a super-soft X-ray emitting component when in the faint phase of its V~ 10-13mag variability…
A 2 hour periodic variation in the low mass X-ray binary Ser X-1
R. Cornelisse, J. Casares, P. A. Charles +1
Spectroscopy of the low mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ~2 hr periodic variability that is present in the three strongest emission line…
An Overview of the Bowen Survey; detecting donor star signatures in Low Mass X-ray Binaries
Remon Cornelisse, Jorge Casares, Teo Munoz-Darias +4
In this paper we give a review of the Bowen fluorescence survey, showing that narrow emission lines (mainly NIII and CIII lines between 4630 and 4660 A) appear to be universally pr…
On the Stability of the 421-day Periodicity in A0538-66
Katherine E. McGowan, Phil A. Charles
In this paper we analyse 70 years of archival Harvard and Schmidt plate data of the 16.6 d Be X-ray binary A0538-66 in order to search for the presence of the long-term period of 4…
MACHO Photometry of Two LMC Be X-ray Transients, EXO 0531-66 and H 0544-665
K. E. McGowan, P. A. Charles
Long-term variations are well-known in Be X-ray binaries, and are attributed to non-orbital changes in the structure of the Be circumstellar (equatorial) disc. However, the timesca…