24 citations · 73 across the 8 of their papers we have counts for
4 papers · 1 filter
On the ages of the stellar populations of galaxies at -7
Eric E. Martínez-García
Recent studies have reported a non evolution of galaxy ages at redshifts higher than 2.5, as well as galaxies older than the Universe. In this work, a sample of galaxies fr…
Colour jumps across the spiral arms of Hubble Ultra Deep Field galaxies
Eric E. Martínez-García, Rosa A. González-Lópezlira, Ivânio Puerari
We have measured, at various wavelengths, the spiral arm pitch angles of a sample of distant spiral galaxies from the Hubble Space Telescope eXtreme Deep Field (XDF). According to…
Mass content of UGC 6446 and UGC 7524 through HI rotation curves: deriving the stellar discs from stellar population synthesis models
P. Repetto, Eric E. Martinez-Garcia, M. Rosado +1
In this work we study the mass distribution of two irregular galaxies, UGC 6446 and UGC 7524, by means of HI rotation curves derived from high resolution HI velocity fields obtaine…
The inclination of the dwarf irregular galaxy Holmberg II
F. J. Sanchez-Salcedo, A. M. Hidalgo-Gamez, E. E. Martinez-Garcia
We provide constraints on the inclination angle of the H\,{\sc i} disk of the dwarf irregular galaxy Holmberg II (Ho II) from stability analysis of the outer gaseous disk. We point…