Browsing by Author "Rubio, M."

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    A SUBMILLIMETER STUDY OF THE IR DUST BUBBLE S 21 AND ITS ENVIRONS
    (UNIV NACIONAL AUTONOMA MEXICO, INST DE ASTRONOMIA, 2017) Cappa, C. E.; Duronea, N. U.; Vasquez, J.; Rubio, M.; Firpo, V.; Lopez Caraballo, C. H.; Borissova, J.
    Based on the molecular emission in the (CO)-C-12(2-1) and (CO)-C-13(2-1) lines, and on the continuum emission in the MIR and FIR towards the S 21 IR dust bubble, we analyze the physical characteristics of the gas and dust linked to the nebula and the presence of young stellar objects (YSOs) in its environs. The line emission reveals a clumpy molecular shell, 1.4 pc in radius, encircling S 21. The total molecular mass in the shell amounts to 2900 M-circle dot and the original ambient density, 2.1 x10(3) cm(-3), indicating that the bubble is evolving in a high density interstellar medium. The image at 24 mu m shows warm dust inside the bubble, while the emission in the range 250 to 870 mu m reveals cold dust in its outskirts, coincident with the molecular gas. The detection of radio continuum emission indicates that the bubble is a compact Hii region. A search for YSOs using photometric criteria allowed to identify many candidates projected onto the molecular clumps. We analize if the collect and collapse process has triggered a new generation of stars.
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    Kinetics of the Anaerobic Reaction of para-Substituted Phenols with Nitrogen Dioxide
    (2017) Reyes, J.; Lissi, E.; López Alarcón, Camilo Ignacio; Rubio, M.
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    Kinetics of the Reaction of Pyrogallol Red a Polyphenolic, Dye with Nitrous Acid : Role of center dot NO and center dot NO2
    (2015) Hugo, Estefanía; Reyes García, Jael Lucila; Montupil, E.; Bridi, Raquel; Lissi, E.; Denicola, A.; Rubio, M.; López Alarcón, Camilo Ignacio
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    The molecular gas content of blue dwarf galaxies A collapsing detached molecular system in He 2-10?
    (EDP SCIENCES S A, 2009) Vanzi, L.; Combes, F.; Rubio, M.; Kunth, D.
    We present new observations of a sample of blue dwarf galaxies in the lines of CO(3-2) and HCN(4-3). The observations were obtained with the 12 m APEX telescope located at an altitude of 5100 m in Chajnantor (ALMA site). We detected CO(3-2) emission in seven of nine observed galaxies in our sample. In two galaxies, NGC 5253 and He 2-10, we mapped the central 20 '' x 20 '' in the CO(3-2) emission line. In He 2-10, we detected an extended component of molecular gas to the north-east of the main body of the galaxy. Comparing our data with previous HI and CO observations, we speculate that the presence of this detached cloud of molecular gas is produced by the merger already known in He 2-10, and could lead to the formation of a small tidal dwarf galaxy. The HCN(4-3) line was observed in NGC 5253 and He 2-10 only, but not detected.