Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Méndez, Rene A."'
Results of the speckle-interferometry observations at the 4.1 m Southern Astrophysical Research Telescope (SOAR) obtained during 2023 are presented: 1913 measurements of 1533 resolved pairs or subsystems (median separation 0.16") and non-resolutions
Externí odkaz:
http://arxiv.org/abs/2405.10071
Autor:
Rojas, Felipe Gutiérrez, Bouquillon, Sébastien, Mendez, Rene A., Pulgar, Hernan, Pinto, Marcelo Tala, Vieira, Katherine, Picón, Millarca Valenzuela, Jordán, Andrés, Nitschelm, Christian H. R., Hadjara, Massinissa, Castellón, José Luis Nilo, Vuckovic, Maja, Cremades, Hebe, Yang, Bin, Malgoyre, Adrien, Francois, Colas, Vernazza, Pierre, Bourget, Pierre, Jehin, Emmanuel, Klotz, Alain
FRIPON is an efficient ground-based network for the detection and characterization of fireballs, which was initiated in France in 2016 with over one hundred cameras and which has been very successfully extended to Europe and Canada with one hundred m
Externí odkaz:
http://arxiv.org/abs/2312.13576
Autor:
Vicuña, Mario L., Silva, Jorge F., Mendez, Rene A., Orchard, Marcos E., Espinosa, Sebastian, Tregloan-Reed, Jeremy
In this paper we study the joint determination of source and background flux for point sources as observed by digital array detectors. We explicitly compute the two-dimensional Cram\'er-Rao absolute lower bound (CRLB) as well as the performance bound
Externí odkaz:
http://arxiv.org/abs/2311.12142
Autor:
Anguita-Aguero, Jennifer, Mendez, Rene A., Videla, Miguel, Costa, Edgardo, Vanzi, Leonardo, Castro-Morales, Nicolas, Caballero-Valdes, Camila
We present orbital elements for twenty-two single-line binaries, nine of them studied for the first time, determined from a joint spectroscopic and astrometric solution. The astrometry is based on interferometric measurements obtained with the HRCam
Externí odkaz:
http://arxiv.org/abs/2309.06394
Autor:
Nagy, Zsófia, Park, Sunkyung, Ábrahám, Péter, Kóspál, Ágnes, de Miera, Fernando Cruz-Sáenz, Kun, Mária, Siwak, Michał, Szabó, Zsófia Marianna, Szilágyi, Máté, Fiorellino, Eleonora, Giannini, Teresa, Lee, Jae-Joon, Lee, Jeong-Eun, Marton, Gábor, Szabados, László, Vitali, Fabrizio, Andrzejewski, Jan, Gromadzki, Mariusz, Hodgkin, Simon, Jabłońska, Maja, Mendez, Rene A., Merc, Jaroslav, Michniewicz, Olga, Mikołajczyk, Przemysław J., Pylypenko, Uliana, Ratajczak, Milena, Wyrzykowski, Łukasz, Zejmo, Michal, Zieliński, Paweł
FU Orionis objects (FUors) are eruptive young stars, which exhibit outbursts that last from decades to a century. Due to the duration of their outbursts, and to the fact that only about two dozens of such sources are known, information on the end of
Externí odkaz:
http://arxiv.org/abs/2307.01629
The optimal instant of observation of astrophysical phenomena for objects that vary on human time-sales is an important problem, as it bears on the cost-effective use of usually scarce observational facilities. In this paper we address this problem f
Externí odkaz:
http://arxiv.org/abs/2301.04162
The speckle interferometry program at the the 4.1 m Southern Astrophysical Research Telescope (SOAR), started in 2008, now accumulated over 30,300 individual observations of 12,700 distinct targets. Its main goal is to monitor orbital motion of close
Externí odkaz:
http://arxiv.org/abs/2207.02925
We present a Bayesian inference methodology for the estimation of orbital parameters on single-line spectroscopic binaries with astrometric data, based on the No-U-Turn sampler Markov chain Monte Carlo algorithm. Our approach is designed to provide a
Externí odkaz:
http://arxiv.org/abs/2203.07438
We present orbital elements, orbital parallaxes and individual component masses, for fourteen spatially resolved double-line spectroscopic binaries derived doing a simultaneous fit of their visual orbit and radial velocity curve. This was done by mea
Externí odkaz:
http://arxiv.org/abs/2201.04134
Autor:
Flores-Díaz, Amairani, Alatriste-Mondragón, Felipe, Rittmann, Bruce, Rangel-Mendez, Rene, Ontiveros-Valencia, Aura
Publikováno v:
In Journal of Hazardous Materials 5 December 2024 480
