85 citations · 359 across the 12 of their papers we have counts for
8 papers · 1 filter
Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer I. Accretion and multiplicity
R. Mignon-Risse, M. González, B. Commerçon +1
(Abridged) Context. Massive stars form in magnetized and turbulent environments, and are often located in stellar clusters. Their accretion mechanism, as well as the origin of thei…
Empirical determination of atomic line parameters of the 1.5 m spectral region
J. C. Trelles Arjona, B. Ruiz Cobo, M. J. Martínez González
Both the quality and amount of astrophysical data are steadily increasing over time owing to the improvement of telescopes and their instruments. This requires corresponding evolut…
Photospheric magnetic topology of a north polar region
A. Pastor Yabar, M. J. Martínez González, M. Collados
Aims. We aim to characterise the magnetism of a large fraction of the north polar region close to a maximum of activity, when the polar regions are reversing their dominant polarit…
Inference of magnetic fields in the very quiet Sun
M. J. Mart\' inez González, A. Pastor Yabar, A. Lagg +29
We present high-precision spectro-polarimetric data with high spatial resolution (0.4) of the very quiet Sun at 1.56m obtained with the GREGOR telescope to shed some light o…
Magnetic topology of the north solar pole
A. Pastor Yabar, M. J. Martínez González, M. Collados
We study the polar magnetism near an activity maximum when these regions change their polarity, from which it is expected that its magnetism should be less affected by the global f…
Probing deep photospheric layers of the quiet Sun with high magnetic sensitivity
A. Lagg, S. K. Solanki, H. -P. Doerr +31
Context. Investigations of the magnetism of the quiet Sun are hindered by extremely weak polarization signals in Fraunhofer spectral lines. Photon noise, straylight, and the system…
Active region filaments might harbor weak magnetic fields
C. J. Díaz Baso, M. J. Martínez González, A. Asensio Ramos
Recent spectropolarimetric observations of active region filaments have revealed polarization profiles with signatures typical of the strong field Zeeman regime. The conspicuous ab…
YSO accretion shocks: magnetic, chromospheric or stochastic flow effects can suppress fluctuations of X-ray emission
T. Matsakos, J. -P. Chièze, C. Stehlé +9
Context. Theoretical arguments and numerical simulations of radiative shocks produced by the impact of the accreting gas onto young stars predict quasi-periodic oscillations in the…