Browsing by Author "Angeloni, Rodolfo"
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- ItemA machine learned classifier for RR Lyrae in the VVV survey(2016) Elorrieta López, Felipe; Eyheramendy Duerr, Susana; Jordán Colzani, Andrés Cristóbal; Dekany, Istvan; Catelan, Márcio; Angeloni, Rodolfo; Alonso, J.; Contreras, R.; Gran, F.; Hajdu, G.; Espinoza, N.; Saito, R.; Minniti, D.
- ItemA misidentified RR Lyrae variable star in omega Centauri(2013) Navarrete Silva, Camila Andrea; Catelan, Márcio; Contreras Ramos, Rodrigo Andrés; Alonso Garcia, J.; Dekany, Istvan; Gran Merino, Felipe Eduardo; Hempel, Maren; Angeloni, Rodolfo
- ItemA near-infrared catalogue of the Galactic novae in the VVV survey area(2013) Kalbusch Saito, Roberto; Minniti, D.; Angeloni, Rodolfo; Catelan, Márcio; Beamin, J. C.; Borissova, J.; Dekany, Istvan; Kerins, E.; Kurtev, R.; Mennickent, R. E.
- ItemAbsolute parameters of AE For - a highly active detached binary of late K type(2013) Rozyczka, M.; Angeloni, Rodolfo
- ItemDiscovery of a Giant, Highly Collimated Jet from Sanduleak's Star in the Large Magellanic Cloud(2011) Angeloni, Rodolfo
- ItemDiscovery of fast, large-amplitude optical variability of V648 Car (=SS73-17)(2012) Angeloni, Rodolfo
- ItemFORMATION OF RAMAN SCATTERING WINGS AROUND Hα, Hβ, AND PAα IN ACTIVE GALACTIC NUCLEI(2015) Chang, Seok-Jun; Heo, Jeong-Eun; Di Mille, Francesco; Angeloni, Rodolfo; Palma, Tali; Lee, Hee-WonPowered by a supermassive black hole with an accretion disk, the spectra of active galactic nuclei (AGNs) are characterized by prominent emission lines including Balmer lines. The unification schemes of AGNs require the existence of a thick molecular torus that may hide the broad emission line region from the view of observers near the equatorial direction. In this configuration, one may expect that the far-UV radiation from the central engine can be Raman scattered by neutral hydrogen to reappear around Balmer and Paschen emission lines, which can be identified with broad wings. We produce H alpha, H beta, and Pa alpha wings using a Monte Carlo technique to investigate their properties. The neutral scattering region is assumed to be a cylindrical torus specified by the inner and outer radii and the height. While the covering factor of the scattering region affects the overall strengths of the wings, the wing widths are primarily dependent on the neutral hydrogen column density N-H (I) being roughly proportional to N-H I(1/2). In particular, with N-H (I) = 10(23) cm(-2) the H alpha wings typically show a width similar to 2 x 10(4) kms(-1). We also find that H alpha and Paa wing profiles are asymmetric with the red part stronger than the blue part and an opposite behavior is seen for H beta wings.
- ItemHelium enhanced stars and multiple populations along the horizontal branch of NGC 2808 : direct spectroscopic measurements(2014) Marino, F.; Milone, P.; Przybilla, N.; Bergemann, M.; Lind, K.; Asplund, M.; Cassisi, S.; Catelan, Márcio; Zoccali, Manuela; Angeloni, Rodolfo
- ItemSymbiotic stars in OGLE data - I. Large magellanic cloud systems(2014) Angeloni, Rodolfo; Ferreira Lopes, C.E.; Masetti, N.; Di Mille, F.; Pietrukowicz, Pawel; Udalski, A.; Navarrete Silva, Camila Andrea; Puzia, Thomas H.; Catelan, Márcio; Guzmán Carmine, Christian Dani; Schaefer, B. E.; Parisi, P.; Landi, R.
- ItemThe halo plus cluster system of the Galactic globular cluster NGC 1851(a similar to...)(2014) Marino, A.F.; Milone, A.P.; Yong, D.; Dotter, A.; Da Costa, G.; Asplund, M.; Jerjen, H.; Cassisi, S.; Sbordone, L.; Angeloni, Rodolfo
- ItemThe new carbon symbiotic star IPHAS J205836.43+503307.2⋆(2011) Corradi, R. L. M.; Angeloni, Rodolfo
- ItemThe symbiotic system AG Draconis: Soft X-ray bremsstrahlung from the nebulae(2011) Contini, M.; Angeloni, Rodolfo
- ItemThe VVV Templates Project Towards an automated classification of VVV light-curves I. Building a database of stellar variability in the near-infrared(2014) Angeloni, Rodolfo; Contreras, R.; Catelan, Márcio; Dekany, Istvan; Gran Merino, Felipe Eduardo; Alonso García, J.; Hempel, Maren; Navarrete Silva, Camila Andrea; Andrews, H.; Beamin, J.; Berger Silva, Christian; Espinoza, N.; Eyheramendy Duerr, Susana; Hajdu, G.; Hempel, A.; Ita, Y.; Jordán Colzani, Andrés Cristóbal; Minniti, D.; Townsend, B.
- ItemUpdated census of RR Lyrae stars in the globular cluster omega Centauri (NGC 5139)(2015) Navarrete, C.; Contreras, R.; Catelan, Márcio; Clement, C.; Gran, F.; Alonso, J.; Angeloni, Rodolfo; Hempel, M.; Dekany, I.; Minniti, D.