165 citations · 1.2k across the 77 of their papers we have counts for
4 papers · 1 filter
The quantity of dark matter in early-type galaxies and its relation to the environment
A. Nigoche-Netro, G. Ramos-Larios, P. Lagos +5
We study the behavior of the dynamical and stellar mass inside the effective radius of early-type galaxies (ETGs) as a function of environment considering Newtonian dynamics, diffe…
Hidden IR structures in NGC 40: signpost of an ancient born-again event
J. A. Toalá, G. Ramos-Larios, M. A. Guerrero +1
We present the analysis of infrared (IR) observations of the planetary nebula NGC 40 together with spectral analysis of its [WC]-type central star HD 826. Spitzer IRS observations…
A census of symbiotic stars in the 2MASS, WISE and Gaia surveys
Stavros Akras, Lizette Guzman-Ramirez, Marcelo L. Leal-Ferreira +1
We present a new census of Galactic and extragalactic symbiotic stars (SySts). This compilation contains 323 known and 87 candidate SySts. Of the confirmed SySts, 257 are Galactic…
A machine learning approach for identification and classification of symbiotic stars using 2MASS and WISE
Stavros Akras, Marcelo L. Leal-Ferreira, Lizette Guzman-Ramirez +1
In this second paper in a series of papers based on the most-up-to-date catalogue of symbiotic stars (SySts), we present a new approach for identifying and distinguishing SySts fro…