165 citations · 1.2k across the 77 of their papers we have counts for
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H in low-ionization structures of planetary nebulae
Stavros Akras, Denise R. Gonçalves, Gerardo Ramos-Larios
We report the detection of near-IR H emission from the low-ionization structures (knots) in two planetary nebulae. The deepest ever, high-angular resolution H 1-0 S(1) at 2…
Dark matter inside early-type galaxies as function of mass and redshift
A. Nigoche-Netro, G. Ramos-Larios, P. Lagos +6
We study the behaviour of the dynamical and stellar mass inside the effective radius (re) of early-type galaxies (ETGs). We use several samples of ETGs -ranging from 19 000 to 98 0…
Proof of shock-excited H in low-ionization structures of PNe
Stavros Akras, Denise R. Gonçalves, Gerardo Ramos-Larios
We report the detection of near-IR H lines emission from low-ionization structures (LISs) in planetary nebulae. The deepest, high-angular resolution H 1-0 S(1) at 2.122 …
Spitzer mid-infrared spectroscopic observations of planetary nebulae
Héctor Mata, Gerardo Ramos-Larios, Martin A. Guerrero +7
We present Spitzer Space Telescope archival mid-infrared (mid-IR) spectroscopy of a sample of eleven planetary nebulae (PNe). The observations, acquired with the Spitzer Infrared S…