99 citations · 638 across the 22 of their papers we have counts for
15 papers · 1 filter
Compact planetary nebulae: Improved IR diagnostic criteria based on classification tree modelling
Stavros Akras, Lizette Guzman-Ramirez, Denise R. Gonçalves
Planetary nebulae (PNe) are strong H line-emitters and a lot of new PNe discoveries have been made by the SuperCOSMOS AAO/UKST H Survey (SHS) and the Isaac Newton Telescope P…
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…
Resolved imaging of the AR Puppis circumbinary disk
S. Ertel, D. Kamath, M. Hillen +14
Circumbinary disks are common around post-asymptotic giant branch (post-AGB) stars with a stellar companion on orbital time scales of a few 100 to few 1000 days. The presence of a…
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…
Opening PANDORA's box: APEX observations of CO in PNe
L. Guzman-Ramirez, A. I. Gomez-Ruiz, H. M. J. Boffin +5
Context. Observations of molecular gas have played a key role in developing the current understanding of the late stages of stellar evolution. Aims. The survey Planetary nebulae AN…
Gas and dust from solar metallicity AGB stars
P. Ventura, A. Karakas, F. Dell'Agli +2
We study the asymptotic giant branch (AGB) evolution of stars with masses between . We focus on stars with a solar chemical composition, which allows u…