37 citations · 96 across the 4 of their papers we have counts for
4 papers
Space Velocity and Time Span of Jets in Planetary Nebulae
Martin A Guerrero, Jackeline S Rechy-Garcia, Roberto Ortiz
Fast highly-collimated outflows including bipolar knots, jet-like features, and point-symmetric filaments or string of knots are common in planetary nebulae (PNe). These features,…
Ultraviolet emission from main-sequence companions of AGB stars
Roberto Ortiz, Martin A. Guerrero
Although the majority of known binary Asymptotic Giant Branch (AGB) stars are symbiotic systems (i.e. with a WD as a secondary star), main-sequence companions of AGB stars can be m…
The young stellar cluster [DBS2003] 157 associated with the H II region GAL 331.31-00.34
Marcio C. Pinheiro, Zulema Abraham, Marcus V. F. Copetti +3
We report a study of the stellar content of the Near-infrared cluster [DBS2003]\,157 embedded in the extended H\,{\sc ii} region GAL\,331.31-00.34, which is associated with the IRA…
GEMINI near-infrared spectroscopic observations of young massive stars embedded in molecular clouds
A. Roman-Lopes, Z. Abraham, R. Ortiz +1
K-band spectra of young stellar candidates in four southern hemisphere clusters have been obtained with the near-infrared spectrograph GNIRS in Gemini South. The clusters are assoc…