6 citations · 6 across the 7 of their papers we have counts for
7 papers
Depolarization and Polarization-Transfer Rates for Solar He I Lines due to Collisions with Neutral Hydrogen
Moncef Derouich, Saleh Qutub
Context. Neutral helium (He I) produces several spectral lines that are widely used for solar diagnostics. The role of collisions between He I atoms and neutral hydrogen (H I) in t…
Collisional and magnetic effects on the polarization of the solar oxygen infrared triplet
Moncef Derouich, Saleh Qutub
Context: The scattering polarization of the infrared (IR) triplet of neutral oxygen (O\,\textsc{i}) near 777\,nm provides a powerful diagnostic of solar atmospheric conditions. How…
Depolarization and polarization transfer rates for the C + H collisions in the solar photosphere
S. Qutub, Y. N. Kalugina, M. Derouich
This paper is a continuation of a series of studies investigating collisional depolarization of solar molecular lines like those of MgH, CN and C. It is focused on the case of…
On the collisional sensitivity of polarized Mg II solar lines
M. Derouich, S. Qutub
Neutral and singly ionized states of the Magnesium (Mg) are the origin of several spectral lines that are useful for solar diagnostic purposes. An important element in modeling suc…
Depolarization of MgH Solar Lines by Collisions with Hydrogen Atoms
Saleh Qutub, Yulia Kalugina, Moncef Derouich
Interpretations of the very rich second solar spectrum of the MgH molecule face serious problems owing to the complete lack of any information about rates of collisions between the…
Effect of Anisotropic Collisions on Solar Scattering Polarization
Saleh Qutub, Moncef Derouich, Badruddin Zaheer Ahmad
Scattering of anisotropic radiation by atoms, ions or molecules is sufficient to generate linear polarization observable in stars and planets atmospheres, circumstellar environment…
Effect of the isotropic collisions with neutral hydrogen on the polarization of the CN solar molecule
S. Qutub, M. Derouich, Y. N. Kalugina +2
Our work is concerned with the case of the solar molecule CN which presents conspicuous profiles of scattering polarization. We start by calculating accurate PES for the singlet an…