888 citations
- Instituto de Astrofísica de CanariasES155 papers
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26 papers · 1 filter
The discovery of high-amplitude 10.9-minute oscillations in the cool magnetic Ap star HD 115226
O. Kochukhov, T. Ryabchikova, S. Bagnulo +1
We present the discovery of pulsational variations in the cool magnetic Ap star HD 115226 -- the first high-amplitude rapidly oscillating Ap star discovered with time-series spectr…
Characterisation of the magnetic field of the Herbig Be star HD 200775
E. Alecian, C. Catala, G. A. Wade +9
After our recent discovery of four magnetic Herbig stars, we have decided to study in detail one of them, HD 200775, to determine if its magnetic topology is similar to that of the…
Magnetism in pre-MS intermediate-mass stars and the fossil field hypothesis
E. Alecian, G. A. Wade, C. Catala +11
Today, one of the greatest challenges concerning the Ap/Bp stars is to understand the origin of their slow rotation and their magnetic fields. The favoured hypothesis for the latte…
Discovery of pulsational line profile variations in the delta Scuti star HD21190 and in the Ap Sr star HD218994
J. F. Gonzalez, S. Hubrig, D. W. Kurtz +2
Asteroseismology has the potential to provide new insights into the physics of stellar interiors. We have obtained UVES high time resolution observations of the delta Scuti star HD…
Initial Data Release from the INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS)
E. A. Gonzalez-Solares, N. A. Walton, R. Greimel +47
The INT/WFC Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS) is an imaging survey being carried out in H-alpha, r' and i' filters, with the Wide Field Camera (WFC)…
Polarimetry of the dwarf planet (136199) Eris
I. Belskaya, S. Bagnulo, K. Muinonen +4
We investigate the surface characteristics of the large dwarf planet (136199) Eris. With the FORS1 instrument of the ESO VLT, we have obtained Bessell broadband R linear polarimetr…