Zobrazeno 1 - 10
of 942
pro vyhledávání: '"Angeloni, R."'
Autor:
Monsalves, N., Arancibia, M. Jaque, Bayo, A., Sánchez-Sáez, P., Angeloni, R., Damke, G, Van de Perre, J. Segura
Publikováno v:
A&A 691, A106 (2024)
In recent years the amount of publicly available astronomical data has increased exponentially, with a remarkable example being large scale multiepoch photometric surveys. This wealth of data poses challenges to the classical methodologies commonly e
Externí odkaz:
http://arxiv.org/abs/2408.11960
Autor:
Saito, R. K., Hempel, M., Alonso-García, J., Lucas, P. W., Minniti, D., Alonso, S., Baravalle, L., Borissova, J., Caceres, C., Chené, A. N., Cross, N. J. G., Duplancic, F., Garro, E. R., Gómez, M., Ivanov, V. D., Kurtev, R., Luna, A., Majaess, D., Navarro, M. G., Pullen, J. B., Rejkuba, M., Sanders, J. L., Smith, L. C., Albino, P. H. C., Alonso, M. V., Amôres, E. B., Angeloni, R., Arias, J. I., Arnaboldi, M., Barbuy, B., Bayo, A., Beamin, J. C., Bedin, L. R., Bellini, A., Benjamin, R. A., Bica, E., Bonatto, C. J., Botan, E., Braga, V. F., Brown, D. A., Cabral, J. B., Camargo, D., Garatti, A. Caratti o, Carballo-Bello, J. A., Catelan, M., Chavero, C., Chijani, M. A., Clariá, J. J., Coldwell, G. V., Peña, C. Contreras, Ramos, R. Contreras, Corral-Santana, J. M., Cortés, C. C., Cortés-Contreras, M., Cruz, P., Daza-Perilla, I. V., Debattista, V. P., Dias, B., Donoso, L., D'Souza, R., Emerson, J. P., Federle, S., Fermiano, V., Fernandez, J., Fernández-Trincado, J. G., Ferreira, T., Lopes, C. E. Ferreira, Firpo, V., Flores-Quintana, C., Fraga, L., Froebrich, D., Galdeano, D., Gavignaud, I., Geisler, D., Gerhard, O. E., Gieren, W., Gonzalez, O. A., Gramajo, L. V., Gran, F., Granitto, P. M., Griggio, M., Guo, Z., Gurovich, S., Hilker, M., Jones, H. R. A., Kammers, R., Kuhn, M. A., Kumar, M. S . N., Kundu, R., Lares, M., Libralato, M., Lima, E., Maccarone, T. J., Cortés, P. Marchant, Martin, E. L., Masetti, N., Matsunaga, N., Mauro, F., McDonald, I., Mejías, A., Mesa, V., Milla-Castro, F. P., Minniti, J. H., Bidin, C. Moni, Montenegro, K., Morris, C., Motta, V., Navarete, F., Molina, C. Navarro, Nikzat, F., Castellón, J. L. Nilo, Obasi, C., Ortigoza-Urdaneta, M., Palma, T., Parisi, C., Ramírez, K. Pena, Pereyra, L., Perez, N., Petralia, I., Pichel, A., Pignata, G., Alegría, S. Ramírez, Rojas, A. F., Rojas, D., Roman-Lopes, A., Rovero, A. C., Saroon, S., Schmidt, E. O., Schröder, A. C., Schultheis, M., Sgró, M. A., Solano, E., Soto, M., Stecklum, B., Steeghs, D., Tamura, M., Tissera, P., Valcarce, A. A. R., Valotto, C. A., Vasquez, S., Villalon, C., Villanova, S., Cádiz, F. Vivanco, Bacigalupo, R. Zelada, Zijlstra, A., Zoccali, M.
Publikováno v:
A&A 689, A148 (2024)
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded both the temp
Externí odkaz:
http://arxiv.org/abs/2406.16646
Autor:
Pietrukowicz, P., Latour, M., Soszynski, I., Di Mille, F., King, P. Soto, Angeloni, R., Poleski, R., Udalski, A., Szymanski, M. K., Ulaczyk, K., Kozlowski, S., Skowron, J., Skowron, D. M., Mroz, P., Rybicki, K., Iwanek, P., Wrona, M., Gromadzki, M.
Blue Large-Amplitude Pulsators (BLAPs) are a recently discovered class of short-period pulsating variable stars. In this work, we present new information on these stars based on photometric and spectroscopic data obtained for known and new objects de
Externí odkaz:
http://arxiv.org/abs/2404.16089
Autor:
Saffe, C., Miquelarena, P., Alacoria, J., Martioli, E., Flores, M., Arancibia, M. Jaque, Angeloni, R., Jofre, E., Galarza, J. Yana, Gonzalez, E., Collado, A.
Aims. We explore different scenarios to explain the chemical difference found in the remarkable giant-giant binary system HD 138202 + CD-30 12303. For the first time, we suggest how to distinguish these scenarios by taking advantage of the extensive
Externí odkaz:
http://arxiv.org/abs/2402.09278
Autor:
Pujol, A., Luna, G. J. M., Mukai, K., Sokoloski, J. L., Kuin, N. P. M., Walter, F. M., Angeloni, R., Nikolov, Y., de Oliveira, R. Lopes, Nuñez, N. E., Arancibia, M. Jaque, Palma, T., Gramajo, L.
Publikováno v:
A&A 670, A32 (2023)
Symbiotic binaries sometimes hide their symbiotic nature for significant periods of time. There is mounting observational evidence that in those symbiotics that are powered solely by accretion of red-giant's wind material onto a white dwarf, without
Externí odkaz:
http://arxiv.org/abs/2211.13193
Autor:
Saffe, C., Alacoria, J., Miquelarena, P., Petrucci, R., Arancibia, M. Jaque, Angeloni, R., Martioli, E., Flores, M., Jofre, E., Collado, A., Gunella, F.
Publikováno v:
A&A 668, A157 (2022)
Am stars are often components of short-period binary systems, where tidal interactions would result in low rotational velocities and help to develop the chemical peculiarities observed. However, the origin of single Am stars and Am stars that belong
Externí odkaz:
http://arxiv.org/abs/2209.14257
Autor:
Alacoria, J., Saffe, C., Arancibia, M. Jaque, Angeloni, R., Miquelarena, P., Flores, M., Veramendi, M. E., Collado, A.
Publikováno v:
A&A 660, A98 (2022)
Our aim is to test the accretion scenario of lambda Boo stars. This model predicts that a binary system with two early-type stars passing through a diffuse cloud should both display the same superficial peculiarity. We carried out a detailed abundanc
Externí odkaz:
http://arxiv.org/abs/2202.05066
Autor:
Lopes, C. E. Ferreira, Cross, N. J. G., Catelan, M., Minniti, D., Hempel, M., Lucas, P. W., Angeloni, R., Jablonsky, F., Braga, V. F., Leao, I. C., Herpich, F. R., Alonso-Garcia, J., Papageorgiou, A., Pichara, K., Saito, R. K., Bradley, A., Beamin, J. C., Cortes, C., De Medeiros, J. R., Russell, Christopher. M. P.
Thanks to the VISTA Variables in the Via Lactea (VVV) ESO Public Survey it is now possible to explore a large number of objects in those regions. This paper addresses the variability analysis of all VVV point sources having more than 10 observations
Externí odkaz:
http://arxiv.org/abs/2005.05404
Autor:
Kuin, N. P. M., Page, K. L., Mróz, P., Darnley, M. J., Shore, S. N., Osborne, J. P., Walter, F., Di Mille, F., Morrell, N., Munari, U., Bohlsen, T., Evans, A., Gehrz, R. D., Starrfield, S., Henze, M., Williams, S. C., Schwarz, G. J., Udalski, A., Szymański, M. K., Poleski, R., Soszyński, I., Ribeiro, V. A. R. M., Angeloni, R., Breeveld, A. A., Beardmore, A. P., Skowron, J.
We present a comprehensive review of all observations of the eclipsing recurrent Nova LMC 1968 in the Large Magellanic Cloud which was previously observed in eruption in 1968, 1990, 2002, 2010, and most recently in 2016. We derive a probable recurren
Externí odkaz:
http://arxiv.org/abs/1909.03281
Autor:
Angeloni, R., Gonçalves, D. R., Akras, S., Gimeno, G., Diaz, R., Scharwächter, J., Nuñez, N. E., Luna, G. J. M., Lee, H. W., Heo, J. E., Lucy, A. B., Arancibia, M. Jaque, Moreno, C., Chirre, E., Goodsell, S. J., King, P. Soto, Sokoloski, J. L., Choi, B. E., Ribeiro, M. Dias
Symbiotic stars (SySts) are long-period interacting binaries composed of a hot compact star, an evolved giant star, and a tangled network of gas and dust nebulae. They represent unique laboratories for studying a variety of important astrophysical pr
Externí odkaz:
http://arxiv.org/abs/1903.03225