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6 papers · 1 filter
A Parametric Study of Erupting Flux Rope Rotation. Modeling the "Cartwheel CME" on 9 April 2008
B. Kliem, T. Török, W. T. Thompson
The rotation of erupting filaments in the solar corona is addressed through a parametric simulation study of unstable, rotating flux ropes in bipolar force-free initial equilibrium…
Precise absolute astrometry from the VLBA imaging and polarimetry survey at 5 GHz
Leonid Petrov, Gregory Taylor
We present in this paper accurate positions of 857 sources derived from the astrometric analysis of 16 eleven-hour experiments from the Very Long Baseline Array imaging and polarim…
The EVN Galactic Plane Survey - EGaPS
Leonid Petrov
I present a catalogue of positions and correlated flux densities of 109 compact extragalactic radio sources in the Galactic plane determined from analysis of a 48 hour VLBI experim…
Collisional Excavation of Asteroid (596) Scheila
D. Bodewits, M. S. Kelley, J. -Y. Li +3
We observed asteroid (596) Scheila and its ejecta cloud using the Swift UV-optical telescope. We obtained photometry of the nucleus and the ejecta, and for the first time measured…
The catalogue of positions of optically bright extragalactic radio sources OBRS-1
Leonid Petrov
It is expected that the European Space Agency mission Gaia will make possible to determine coordinates in the optical domain of more than 500000 quasars. In 2006, a radio astrometr…
Upper limits for undetected trace species in the stratosphere of Titan
Conor A. Nixon, Richard K. Achterberg, Nicholas A. Teanby +15
In this paper we describe a first quantitative search for several molecules in Titan's stratosphere in Cassini CIRS infrared spectra. These are: ammonia (NH3), methanol (CH3OH), fo…