33 citations · 89 across the 4 of their papers we have counts for
6 papers
New Complexities in the Low-State line profiles of AM Herculis
S. Kafka, T. Ribeiro, R. Baptista +2
When accretion temporarily ceases in the polar AM Her, the emission line profiles are known to develop several distinct components, whose origin remains poorly understood. The new…
Cyclical period changes in HT Cas: a clear difference between systems above and below the period gap
B. W. Borges, R. Baptista, C. Papadimitriou +1
We report the identification of cyclical changes in the orbital period of the eclipsing cataclysmic variable HT Cas. We measured new white dwarf mid-eclipse timings and combined wi…
A multicolor near-infrared study of the dwarf nova IP Peg
T. Ribeiro, R. Baptista, E. T. Harlaftis +2
We report the analysis of light curves of the eclipsing dwarf nova IP Peg in quiescence. The light curves are dominated by the ellipsoidal variation of the mass-donor sta…
A study of the evolution of the accretion disk of V2051 Oph through two outburst cycles
R. Baptista, R. F. Santos, M. Faundez-Abans +1
We follow the changes in the structure of the accretion disk of the dwarf nova V2051 Oph along two separate outbursts in order to investigate the causes of its recurrent outbursts.…
HST/FOS Time-resolved spectral mapping of IP Pegasi at the end of an outburst
R. K. Saito, R. Baptista, K. Horne
We report an eclipse mapping analysis of time-resolved ultraviolet spectroscopy covering three eclipses of the dwarf nova IP Pegasi on the late decline of the 1993 May outburst. Th…
Spiral shock detection on eclipse maps: Simulations and Observations
E. T. Harlaftis, R. Baptista, L. Morales-Rueda +2
We perform simulations in order to reveal the effect of observational and physical parameters on the reconstruction of a spiral structure in an accretion disk, using eclipse mappin…