297 citations · 3k across the 80 of their papers we have counts for
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First evidence of enhanced recombination in astrophysical environments and the implications for plasma diagnostics
A. Nemer, N. C. Sterling, J. Raymond +6
We report the first unambiguous observational evidence of Rydberg Enhanced Recombination (RER), a potentially important recombination mechanism that has hitherto been unexplored in…
Carbon, nitrogen and oxygen abundance gradients in M101 and M31
C. Esteban, F. Bresolin, J. García-Rojas +1
We present deep spectrophotometry of 18 HII regions in the nearby massive spiral galaxies M101 and M31. We have obtained direct determinations of electron temperature in all the ne…
Accretion and Outflow in V404 Cyg
J. Casares, T. Muñoz-Darias, D. Mata Sanchez +5
We study the optical evolution of the 2015 outburst in V404 Cyg, with emphasis on the peculiar nebular phase and subsequent decay to quiescence. From the decay timescale of the Bal…
Galactic abundance gradients from deep spectra of HII regions
C. Esteban, J. García-Rojas, K. Z. Arellano-Córdova +1
We present some results of an ongoing project devoted to reassess the radial abundance gradients in the disc of the MilkyWay based on deep spectroscopy of Hii regions. The data hav…
The radial abundance gradients of O, Ne, S and Cl of the Milky Way
K. Z. Arellano-Córdova, C. Esteban, J. García-Rojas
We present preliminary results of the O, Ne, S and Cl abundance gradients of the Milky Way. We analyze in a homogenous way the physical conditions and chemical abundances of a samp…