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MULTILINE DOPPLER IMAGING OF MR SER IN HIGH STATE
(IOP PUBLISHING LTD, 2009)
Doppler images in Balmer, He I, He II and C II lines, and simultaneous I-band photometry of the polar MR Ser are presented and analyzed. The Balmer and Helium Doppler tomograms, of this bright polar at high mass transfer ...
Accretion Kinematics Through The Warped Transition Disk in HD 142527 From Resolved CO(6–5) Observations
(The American Astronomical Society, 2015-10-01)
The finding of residual gas in the large central cavity of the HD 142527 disk motivates questions regarding the
origin of its non-Keplerian kinematics and possible connections with planet formation. We aim to understand ...
Accretion kinematics through the warped transition disk in hd142527 from resolved CO(6-5) observations
(IOP Publishing, 2015)
The finding of residual gas in the large central cavity of the HD 142527 disk motivates questions regarding the origin of its non-Keplerian kinematics and possible connections with planet formation. We aim to understand ...
A Time-Series Analysis of the H alpha Emission Line in V3885 Sagitarii
(ASTRONOMICAL SOC JAPAN, 2009)
Flickering is a phenomenon related to mass accretion observed among many classes of astrophysical objects. In this paper we present a study of flickering emission lines and the continuum of the cataclysmic variable V3885 ...
PKS 1622-253 : a weakly accreting, powerful gamma ray source
(IOP Publishing, 2005-12)
We discuss new deep radio observations of PKS 1622-253 and their implications for the energetics of the central engine that powers this strong high-energy gamma-ray source. Combining archival infrared and optical ...
Magnetised accretion discs in Kerr spacetimes
(EDP Sciences, 2015-02)
Context. Observational data from X-ray binary systems provide strong evidence of astronomical objects that are too massive and compact to be explained as neutron or hybrid stars. When these systems are in the thermal ...
MAGNETIC FIELD EFFECTS NEAR THE LAUNCHING REGION OF ASTROPHYSICAL JETS
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2010)
One of the fundamental properties of astrophysical magnetic fields is their ability to change topology through reconnection and in doing so, to release magnetic energy, sometimes violently. In this work, we review recent ...
Stochastic Ion Acceleration by the Ion-cyclotron Instability in a Growing Magnetic Field
(Institute of Physics Publishing, 2019)
© 2019 Institute of Physics Publishing. All rights reserved.Using 1D and 2D particle-in-cell simulations of a plasma with a growing magnetic field B, we show that ions can be stochastically accelerated by the ion-cyclotron ...
Giant planet formation at the pressure maxima of protoplanetary disks
(EDP Sciences, 2017-04)
Context. In the classical core-accretion planet-formation scenario, rapid inward migration and accretion timescales of kilometer sizeplanetesimals may not favor the formation of massive cores of giant planets before the ...
Importance of fingering convection for accreting white dwarfs in the framework of full evolutionary calculations: the case of the hydrogen-rich white dwarfs GD133 and G29-38
(EDP Sciences, 2017)
Context. A large fraction of white dwarfs show photospheric chemical composition that is polluted by heavy elements accreted from a debris disk. Such debris disks result from the tidal disruption of rocky planetesimals ...