76 citations
- Universidad Complutense de MadridES13 papers
- Universidad Nacional Autónoma de MéxicoMX9 papers
- KTH Royal Institute of TechnologySE8 papers
- National Institute of Astrophysics, Optics and ElectronicsMX5 papers
- Centro Universitário InternacionalMX3 papers
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMX2 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE2 papers
- Instituto Politécnico NacionalMX2 papers
- Joint Institute for Nuclear ResearchRU2 papers
- Lakehead UniversityCA2 papers
- Max Planck Institute for the Science of LightDE2 papers
- Osservatorio astronomico di BolognaIT2 papers
6 papers · 1 filter
Spitzer--IRAC Imagery and Photometry of Ultracompact HII Regions With Extended Emission
E. de la Fuente, A. Porras, J. M. C. Grave +6
We present the results of a morphological study performed to a sample of Ultracompact (UC) HII regions with Extended Emission (EE) using Spitzer--IRAC imagery and 3.6 cm VLA conf.…
A spectroscopic study of the blue stragglers in M67
G. Q. Liu, L. Deng, M. Chavez +3
Based on spectrophotometric observations from the Guillermo Haro Observatory (Cananea, Mexico), a study of the spectral properties of the complete sample of 24 blue straggler stars…
The Unusual Distributions of Ionized Material and Molecular Hydrogen in NGC 6881: Signposts of Multiple Events of Bipolar Ejection in a Planetary Nebula
G. Ramos-Larios, M. A. Guerrero, L. F. Miranda
The planetary nebula NGC 6881 displays in the optical a quadrupolar morphology consisting of two pairs of highly collimated bipolar lobes aligned along different directions. An add…
New Model Atmospheres: Testing the Solar Spectrum in the UV
L. H. Rodriguez-Merino, O. Cardona, E. Bertone +2
We present preliminary results on the calculation of synthetic spectra obtained with the stellar model atmospheres developed by Cardona, Crivellari, and Simonneau. These new models…
U Geminorum: a test case for orbital parameters determination
J. Echevarria, E. de la Fuente, R. Costero
High-resolution spectroscopy of U Gem was obtained during quiescence. We did not find a hot spot or gas stream around the outer boundaries of the accretion disk. Instead, we detect…
Synthetic Mid-UV Spectroscopic Indices of Stars
M. Chavez, E. Bertone, A. Buzzoni +4
Using the UVBLUE library of synthetic stellar spectra we have computed a set of mid-UV line and continuum spectroscopic indices. We explore their behavior in terms of the leading s…