3 papers
astro-ph.SR2024
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…
astro-ph.SR2021
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…
astro-ph.SR2020
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…