Search Publications

A departure from the mass-metallicity relation in merging galaxies due to an infall of metal-poor gas

Pérez-Díaz, Borja; Pérez-Montero, Enrique; Fernández-Ontiveros, Juan A. +2 more

Heavy element accumulation and stellar mass assembly are fundamental processes in the formation and evolution of galaxies. However, the key elements that govern them, such as gas accretion and outflow, are not fully understood. This is especially true for luminous and massive galaxies, which usually suffer strong feedback as massive outflows and l…

A magnetized Galactic halo from inner Galaxy outflows

Morris, Mark R.; Zhang, Yi; Carretti, Ettore +12 more

Magnetic halos of galaxies are crucial for understanding galaxy evolution, galactic-scale outflows and feedback from star formation activity. Identifying the magnetized halo of the Milky Way is challenging because of the potential contamination from foreground emission arising in local spiral arms. In addition, it is unclear how our magnetic halo …

Effects of density and temperature variations on the metallicity of Mrk 71

Kreckel, Kathryn; Esteban, César; García-Rojas, Jorge +2 more

In a very recent work, [1] claim that the scenario of temperature inhomogeneities proposed by [2] ($t2$ > 0) is not able to explain the O$^{2+}$/H$^{+}$ abundance discrepancy observed between the calculations based on the optical [OIII] collisional excited lines (CELs) and the OII recombination lines (RLs) in the star forming galaxy Mrk71. In t…