6 papers · 1 filter
Eclipse mapping of the stream and disk flickering components in V2051 Oph
R. Baptista, A. Bortoletto
We report on the investigation of the spatial distribution of the flickering sources in the dwarf nova V2051 Oph with eclipse mapping techniques. Low-frequency flickering originate…
HST spectral mapping of V2051 Ophiuchi in a low state
R. K. Saito, R. Baptista
V2051 Oph is an eclipsing dwarf novae with an orbital period of 90 min. This system belongs to a small group of ultrashort period eclipsing dwarf nova together with Z Cha, OY Car a…
Time-resolved flickering mapping of V2051 Ophiuchi
Raymundo Baptista, A. Bortoletto
Although flickering is one of the fundamental signatures of accretion, it is also the most poorly understood aspect of the accretion processes. A promising step towards a better un…
Eclipse mapping of accretion discs
Raymundo Baptista
The eclipse mapping method is an inversion technique that makes use of the information contained in eclipse light curves to probe the structure, the spectrum and the time evolution…
Spectral mapping of the accretion flow of UU Aquarii
R. Baptista, C. Silveira, J. E. Steiner +1
Time-resolved spectroscopy of the novalike variable UU Aquarii is analyzed with eclipse mapping techniques to produce spatially resolved spectra of its accretion disc and gas strea…
Changes in the structure of the accretion disc of HS1804+67 through the outburst cycle
Raymundo Baptista, M. S. Catalan
We report on the analysis of high-speed photometry of the dwarf-nova HS1804+67 through its outburst cycle with eclipse mapping techniques. Eclipse maps show evidences of the format…