23 citations · 36 across the 3 of their papers we have counts for
3 papers
HS 2231+2441: an HW Vir system composed by a low-mass white dwarf and a brown dwarf
Leonardo A. Almeida, Augusto Damineli, Cláudia V. Rodrigues +2
HW Vir systems are rare evolved eclipsing binaries composed by a hot compact star and a low-mass main-sequence star in a close orbit. These systems provide a direct way to measure…
Evidence for a 304-day Orbital Period for GX 1+4
Joao Braga, Marildo G. Pereira, Francisco J. Jablonski
In this paper we report strong evidence for a ~304-day periodicity in the spin history of the accretion-powered pulsar GX 1+4 that is very likely to be a signature of the orbital p…
Discovery of optical pulsations in V2116 Ophiuchi/GX 1+4
Francisco J. Jablonski, Marildo G. Pereira, Joao Braga +1
We report the detection of pulsations with s period in V2116 Oph, the optical counterpart of the low-mass X-ray binary GX 1+4. The pulsations are sinusoidal with modulat…