Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Ramírez, K. Pena"'
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:
Almendros-Abad, V., Mužić, K., Bouy, H., Bayo, A., Scholz, A., Ramírez, K. Peña, Moitinho, A., Kubiak, K., Schöedel, R., Barač, R., Brčić, P., Ascenso, J., Jayawardhana, R.
Publikováno v:
A&A 677, A26 (2023)
We aim at characterizing the low-mass (sub)stellar population of the central portion (2.4 pc$^2$) of the $\sim$2 Myr old cluster NGC 2244 using near infrared spectroscopy. By studying this cluster, characterized by a low stellar density and numerous
Externí odkaz:
http://arxiv.org/abs/2305.07158
Autor:
Ramírez, K. Peña, Smith, L. C., Alegría, S. Ramírez, Chené, A. -N., González-Fernández, C., Lucas, P. W., Minniti, D.
Open clusters are key coeval structures that help us understand star formation, stellar evolution and trace the physical properties of our Galaxy. In the past years, the isolation of open clusters from the field has been heavily alleviated by the acc
Externí odkaz:
http://arxiv.org/abs/2205.02735
Autor:
Chené, A. -N., Benjamin, R. A., Alegría, S. Ramírez, Borissova, J., Kurtev, R., Bidin, C. Moni, Mauro, F., Lucas, P., Guo, Z., Smith, L. C., Gonzalez-Fernandez, C., Ivanov, V. D., Minniti, D., Anderson, L. D., Armentrout, W. P., Gonzalez, D., Herrero, A., Ramírez, K. Peña
We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE HII region GAL 007.47+0.06). It is associated to a water maser, whose parallax distance is d=20.4^{+2.8} {-2.2} kpc, supported by ind
Externí odkaz:
http://arxiv.org/abs/2103.05849
Open clusters are central elements of our understanding of the Galactic disk evolution, as an accurate determination of their parameters leads to an unbiased picture of our Galaxy's structure. Extending the analysis towards fainter magnitudes in clus
Externí odkaz:
http://arxiv.org/abs/2102.04303
We present the results of photometric and spectroscopic follow-ups of the lowest mass member candidates in the nearest OB association, Upper Scorpius (5-10 Myr; 145+/-17 pc), with the Gran Telescopio de Canarias (GTC) and European Southern Observator
Externí odkaz:
http://arxiv.org/abs/1709.02139
We have obtained low-resolution optical (0.7-0.98 micron) and near-infrared (1.11-1.34 micron and 0.8-2.5 micron) spectra of twelve isolated planetary-mass candidates (J = 18.2-19.9 mag) of the 3-Myr sigma Orionis star cluster with a view to determin
Externí odkaz:
http://arxiv.org/abs/1705.01336
We aim to study the optical and near-infrared linear polarimetric properties of a sample of young M7-L7 dwarfs ($\approx$1-500 Myr) with spectroscopic signatures of low- and intermediate-gravity atmospheres. We collected optical ($RIZ$) and near-infr
Externí odkaz:
http://arxiv.org/abs/1612.08054
Autor:
Bayo, A., Barrado, D., Allard, F., Henning, T., Comeron, F., Morales-Calderon, M., Rajpurohit, A. S., Ramırez, K. Pena, Beamın, J. C.
Although mid-to-late type M dwarfs are the most common stars in our stellar neighborhood, our knowledge of these objects is still limited. Open questions include the evolution of their angular momentum, internal structures, dust settling in their atm
Externí odkaz:
http://arxiv.org/abs/1610.06951
Autor:
Kurtev, R., Gromadzki, M., Beamin, J. C., Folkes, S. L., Ramirez, K. Pena, Ivanov, V. D., Borissova, J., Villanueva, V., Minniti, D., Mendez, R., Lucas, P. W., Smith, L. C., Pinfield, D. J., Kuhn, M. A., Jones, H. R. A., Antonova, A., Yip, A. K. P.
Knowledge of the stellar content near the Sun is important for a broad range of topics ranging from the search for planets to the study of Milky Way structure. The most powerful method for identifying potentially nearby stars is proper motion (PM) su
Externí odkaz:
http://arxiv.org/abs/1609.03520