129 citations · 685 across the 25 of their papers we have counts for
8 papers · 1 filter
Multiline Zeeman signatures as demonstrated through the Pseudo-line
M. Semel, J. C. Ramirez Velez, M. J. Stift +3
In order to get a significant Zeeman signature in the polarised spectra of a magnetic star, we usually 'add' the contributions of numerous spectral lines; the ultimate goal is to r…
Strength distribution of solar magnetic fields in photospheric quiet Sun regions
J. C. Ramirez Velez, A. Lopez Ariste, M. Semel
The magnetic topology of the solar photosphere in its quietest regions is hidden by the difficulties to disentangle magnetic flux through the resolution element from the field stre…
Near-IR internetwork spectro-polarimetry at different heliocentric angles
M. Jesus Martinez Gonzalez, A. Asensio Ramos, A. Lopez Ariste +1
The analysis of near infrared spectropolarimetric data at the internetwork at different regions on the solar surface could offer constraints to reject current modeling of these qui…
The intrinsic dimensionality of spectro-polarimetric data
A. Asensio Ramos, H. Socas-Navarro, A. Lopez Ariste +1
The amount of information available in spectro-polarimetric data is estimated. To this end, the intrinsic dimensionality of the data is inferred with the aid of a recently derived…
A near-IR line of Mn I as a diagnostic tool of the average magnetic energy in the solar photosphere
A. Asensio Ramos, M. J. Martinez Gonzalez, A. Lopez Ariste +2
We report on spectropolarimetric observations of a near-IR line of Mn I located at 15262.702 A whose intensity and polarization profiles are very sensitive to the presence of hyper…
Spectral Line Selection for HMI: A Comparison of Fe I 6173 and Ni I 6768
A. A. Norton, J. Pietarila Graham, R. K. Ulrich +8
We present a study of two spectral lines, Fe I 6173 Angstroms and Ni I 6768 Angstroms, that were candidates to be used in the Helioseismic and Magnetic Imager (HMI) for observing D…