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330 papers · 1 filter
Subaru and Swift observations of V652 Herculis: resolving the photospheric pulsation
C. S. Jeffery, D. Kurtz, H. Shibahashi +4
High resolution spectroscopy with the Subaru High Dispersion Spectrograph, and Swift ultraviolet photometry are presented for the pulsating extreme helium star V652\,Her. Swift pro…
Morphology and dynamics of solar prominences from 3D MHD simulations
J. Terradas, R. Soler, M. Luna +2
In this paper we present a numerical study of the time evolution of solar prominences embedded in sheared magnetic arcades. The prominence is represented by a density enhancement i…
The HU Aqr planetary system hypothesis revisited
K. Gozdziewski, A. Slowikowska, D. Dimitrov +11
We study the mid-egress eclipse timing data gathered for the cataclysmic binary HU Aquarii during the years 1993-2014. The (O-C) residuals were previously attributed to a single ~7…
Chromospheric diagnosis with Ca II lines: forward modeling in forward scattering (I)
E. S. Carlin, A Asensio Ramos
This paper shows the first synthetic tomography of the quiet solar chromosphere formed by spatial maps of scattering polarization. It has been calculated for the CaII 8498, 8542 an…
3-D Kinematics of the near-IR HH 223 outflow in L723
R. López, J. A. Acosta-Pulido, R. Estalella +2
In this work we derive the full 3-D kinematics of the near-infrared outflow HH 223, located in the dark cloud Lynds 723 (L723), where a well-defined quadrupolar CO outflow is found…
Li abundances in F stars: planets, rotation and galactic evolution
E. Delgado Mena, S. Bertrán de Lis, V. Zh. Adibekyan +7
We find that hot jupiter host stars within the T range 5900-6300K show lower Li abundances, by 0.14 dex, than stars without detected planets. This offset has a signi…