Zobrazeno 1 - 10
of 1 040
pro vyhledávání: '"Valenzuela, E."'
Autor:
Kretlow, M., Ortiz, J. L., Desmars, J., Morales, N., Rommel, F. L., Santos-Sanz, P., Vara-Lubiano, M., Fernández-Valenzuela, E., Alvarez-Candal, A., Duffard, R., Braga-Ribas, F., Sicardy, B., Castro-Tirado, A., Fernández-García, E. J., Sánchez, M., Sota, A., Assafin, M., Benedetti-Rossi, G., Boufleur, R., Camargo, J. I. B., Cikota, S., Gomes-Junior, A., Gómez-Limón, J. M., Kilic, Y., Lecacheux, J., Leiva, R., Marques-Oliveira, J., Morales, R., Morgado, B., Rizos, J. L., Roques, F., Souami, D., Vieira-Martins, R., Alarcon, M. R., Boninsegna, R., Çakır, O., Casarramona, F., Castellani, J. J., de la Cueva, I., Fişek, S., Guijarro, A., Haymes, T., Jehin, E., Kidd, S., Licandro, J., Maestre, J. L., Murgas, F., Pallé, E., Popescu, M., Pratt, A., Serra-Ricart, M., Talbot, J. C.
Trans-Neptunian objects (TNOs) are considered to be among the most primitive objects in our Solar System. Knowledge of their primary physical properties is essential for understanding their origin and the evolution of the outer Solar System. We predi
Externí odkaz:
http://arxiv.org/abs/2410.00561
Autor:
Rizos, J. L., Fernández-Valenzuela, E., Ortiz, J. L., Rommel, F. L., Sicardy, B., Morales, N., Santos-Sanz, P., Leiva, R., Vara-Lubiano, M., Morales, R., Kretlow, M., Alvarez-Candal, A., Holler, B. J., Duffard, R., Gómez-Limón, J. M., Desmars, J., Souami, D., Assafin, M., Benedetti-Rossi, G., Braga-Ribas, F., Camargo, J. I. B., Colas, F., Lecacheux, J., Gomes-Júnior, A. R., Vieira-Martins, R., Pereira, C. L., Morgado, B., Kilic, Y., Redfield, S., Soloff, C., McGregor, K., Green, K., Midavaine, T., Schreurs, O., Lecossois, M., Boninsegna, R., Ida, M., Cam, P. Le, Isobe, K., Watanabe, Hayato, Yuasa, S., Watanabe, Hikaru, Kidd, S.
Publikováno v:
A&A 689, A82 (2024)
Centaurs, distinguished by their volatile-rich compositions, play a pivotal role in understanding the formation and evolution of the early solar system, as they represent remnants of the primordial material that populated the outer regions. Stellar o
Externí odkaz:
http://arxiv.org/abs/2405.17235
Autor:
Kiss, C., Müller, T. G., Marton, G., Szakáts, R., Pál, A., Molnár, L., Vilenius, E., Rengel, M., Ortiz, J. L., Fernández-Valenzuela, E.
Recent stellar occultations have allowed accurate instantaneous size and apparent shape determinations of the large Kuiper belt object (50000)~Quaoar and the detection of two rings with spatially variable optical depths. In this paper we present new
Externí odkaz:
http://arxiv.org/abs/2401.12679
Autor:
Bagge, R. S., Foster, C., Battisti, A., Bellstedt, S., Mun, M., Harborne, K., Barsanti, S., Mendel, T., Brough, S., Croom, S. M., Lagos, C. D. P., Mukherjee, T., Peng, Y., Remus, R-S., Santucci, G., Sharda, P., Thater, S., van de Sande, J., Zafar, L. M. Valenzuela E. Wisnioski T., Ziegler, B.
Galaxy gas kinematics are sensitive to the physical processes that contribute to a galaxy's evolution. It is expected that external processes will cause more significant kinematic disturbances in the outer regions, while internal processes will cause
Externí odkaz:
http://arxiv.org/abs/2311.10268
Autor:
Pereira, C. L., Braga-Ribas, F., Sicardy, B., Gomes-Júnior, A. R., Ortiz, J. L., Branco, H. C., Camargo, J. I. B., Morgado, B. E., Vieira-Martins, R., Assafin, M., Benedetti-Rossi, G., Desmars, J., Emilio, M., Morales, R., Rommel, F. L., Hayamizu, T., Gondou, T., Jehin, E., Artola, R. A., Asai, A., Colazo, C., Ducrot, E., Duffard, R., Fabrega, J., Fernandez-Valenzuela, E., Gillon, M., Horaguchi, T., Ida, M., Kitazaki, K., Mammana, L. A., Maury, A., Melita, M., Morales, N., Moya-Sierralta, C., Owada, M., Pollock, J., Sanchez, J. L., Santos-Sanz, P., Sasanuma, N., Sebastian, D., Triaud, A., Uchiyama, S., Vanzi, L., Watanabe, H., Yamamura, H.
The Centaur (60558) Echeclus was discovered on March 03, 2000, orbiting between the orbits of Jupiter and Uranus. After exhibiting frequent outbursts, it also received a comet designation, 174P. If the ejected material can be a source of debris to fo
Externí odkaz:
http://arxiv.org/abs/2310.18084
Autor:
Emery, J. P., Wong, I., Brunetto, R., Cook, J. C., Pinilla-Alonso, N., Stansberry, J. A., Holler, B. J., Grundy, W. M., Protopapa, S., Souza-Feliciano, A. C., Fernández-Valenzuela, E., Lunine, J. I., Hines, D. C.
We observed Sedna, Gonggong, and Quaoar with the NIRSpec instrument on the James Webb Space Telescope (JWST). All three bodies were observed in the low-resolution prism mode at wavelengths spanning 0.7 to 5.2 $\mu$m. Quaoar was also observed at 10x h
Externí odkaz:
http://arxiv.org/abs/2309.15230
Autor:
Ortiz, J. L., Kretlow, M., Schnabel, C., Morales, N., Flores-Martín, J., González, M. Sánchez, Casarramona, F., Selva, A., Perelló, C., Román-Reche, A., Alonso, S., Rizos, J. L., Gonçalves, R., Castillo, A., Madiedo, J. M., Sánchez, P. Martínez, andújar, J. M. Fernández, Maestre, J. L., Smith, E., Gil, M., Pelenjow, V., Soriano, S. Moral, Martí, J., Luque-Escamilla, P. L., Casas, R., Casal, J. Delgado, Rovira, J., Aceituno, F. J., Dekert, V., Guimerá, V. de Ory, Estepa, J. Serrano, Kilic, Y., Leiva, R., Santos-Sanz, P., Duffard, R., Fernández-Valenzuela, E., Vara-Lubiano, M., Alvarez-Candal, A., Rommel, F. L.
On 12 December 2023, the star $\alpha$ Orionis (Betelgeuse) will be occulted by the asteroid (319) Leona. This represents an extraordinary and unique opportunity to analyze the diameter and brightness distribution of Betelgeuse's photosphere with ext
Externí odkaz:
http://arxiv.org/abs/2309.12272
Autor:
Rommel, F. L., Braga-Ribas, F., Ortiz, J. L., Sicardy, B., Santos-Sanz, P., Desmars, J., Camargo, J. I. B., Vieira-Martins, R., Assafin, M., Morgado, B. E., Boufleur, R. C., Benedetti-Rossi, G., Gomes-Júnior, A. R., Fernández-Valenzuela, E., Holler, B. J., Souami, D., Duffard, R., Margoti, G., Vara-Lubiano, M., Lecacheux, J., Plouvier, J. L., Morales, N., Maury, A., Fabrega, J., Ceravolo, P., Jehin, E., Albanese, D., Mariey, H., Cikota, S., Ruždjak, D., Cikota, A., Szakáts, R., Aissa, D. Baba, Gringahcene, Z., Kashuba, V., Koshkin, N., Zhukov, V., Fişek, S., Çakır, O., Özer, S., Schnabel, C., Schnabel, M., Signoret, F., Morrone, L., Santana-Ros, T., Pereira, C. L., Emilio, M., Burdanov, A. Y., de Wit, J., Barkaoui, K., Gillon, M., Leto, G., Frasca, A., Catanzaro, G., Sanchez, R. Zanmar, Tagliaferri, U., Di Sora, M., Isopi, G., Krugly, Y., Slyusarev, I., Chiorny, V., Mikuž, H., Bacci, P., Maestripieri, M., Grazia, M. D., de la Cueva, I., Yuste-Moreno, M., Ciabattari, F., Kozhukhov, O. M., Serra-Ricart, M., Alarcon, M. R., Licandro, J., Masi, G., Bacci, R., Bosch, J. M., Behem, R., Prost, J. -P., Renner, S., Conjat, M., Bachini, M., Succi, G., Stoian, L., Juravle, A., Carosati, D., Gowe, B., Carrillo, J., Zheleznyak, A. P., Montigiani, N., Foster, C. R., Mannucci, M., Ruocco, N., Cuevas, F., Di Marcantonio, P., Coretti, I., Iafrate, G., Baldini, V., Collins, M., Pál, A., Csák, B., Fernández-Garcia, E., Castro-Tirado, A. J., Hudin, L., Madiedo, J. M., Anghel, R. M., Calvo-Fernández, J. F., Valvasori, A., Guido, E., Gherase, R. M., Kamoun, S., Fafet, R., Sánchez-González, M., Curelaru, L., Vîntdevară, C. D., Danescu, C. A., Gout, J. -F., Schmitz, C. J., Sota, A., Belskaya, I., Rodríguez-Marco, M., Kilic, Y., Frappa, E., Klotz, A., Lavayssière, M., Oliveira, J. Marques, Popescu, M., Mammana, L. A., Fernández-Lajús, E., Schmidt, M., Hopp, U., Komžík, R., Pribulla, T., Tomko, D., Husárik, M., Erece, O., Eryilmaz, S., Buzzi, L., Gährken, B., Nardiello, D., Hornoch, K., Sonbas, E., Er, H., Burwitz, V., Sybilski, P. Waldemar, Bykowski, W., Müller, T. G., Ogloza, W., Gonçalves, R., Ferreira, J. F., Ferreira, M., Bento, M., Meister, S., Bagiran, M. N., Tekeş, M., Marciniak, A., Moravec, Z., Delinčák, P., Gianni, G., Casalnuovo, G. B., Boutet, M., Sanchez, J., Klemt, B., Wuensche, N., Burzynski, W., Borkowski, M., Serrau, M., Dangl, G., Klös, O., Weber, C., Urbaník, M., Rousselot, L., Kubánek, J., André, P., Colazo, C., Spagnotto, J., Sickafoose, A. A., Hueso, R., Sánchez-Lavega, A., Fisher, R. S., Rengstorf, A. W., Perelló, C., Dascalu, M., Altan, M., Gazeas, K., de Santana, T., Sfair, R., Winter, O. C., Kalkan, S., Canales-Moreno, O., Trigo-Rodríguez, J. M., Tsamis, V., Tigani, K., Sioulas, N., Lekkas, G., Bertesteanu, D. N., Dumitrescu, V., Wilberger, A. J., Barnes, J. W., Fieber-Beyer, S. K., Swaney, R. L., Fuentes, C., Mendez, R. A., Dumitru, B. D., Flynn, R. L., Wake, D. A.
Publikováno v:
A&A 678, A167 (2023)
This work aims at constraining the size, shape, and geometric albedo of the dwarf planet candidate 2002 MS4 through the analysis of nine stellar occultation events. Using multichord detection, we also studied the object's topography by analyzing the
Externí odkaz:
http://arxiv.org/abs/2308.08062
Autor:
Ortiz, J. L., Pereira, C. L., Sicardy, B., Braga-Ribas, F., Takey, A., Fouad, A. M., Shaker, A. A., Kaspi, S., Brosch, N., Kretlow, M., Leiva, R., Desmars, J., Morgado, B. E., Morales, N., Vara-Lubiano, M., Santos-Sanz, P., Fernández-Valenzuela, E., Souami, D., Duffard, R., Rommel, F. L., Kilic, Y., Erece, O., Koseoglu, D., Ege, E., Morales, R., Alvarez-Candal, A., Rizos, J. L., Gómez-Limón, J. M., Assafin, M., Vieira-Martins, R., Gomes-Júnior, A. R., Camargo, J. I. B., Lecacheux, J.
Publikováno v:
A&A 676, L12 (2023)
We could accurately predict the shadow path and successfully observe an occultation of a bright star by Chiron on 2022 December 15. The Kottamia Astronomical Observatory in Egypt did not detect the occultation by the solid body, but we detected three
Externí odkaz:
http://arxiv.org/abs/2308.03458
Autor:
Pereira, C. L., Sicardy, B., Morgado, B. E., Braga-Ribas, F., Fernández-Valenzuela, E., Souami, D., Holler, B. J., Boufleur, R. C., Margoti, G., Assafin, M., Ortiz, J. L., Santos-Sanz, P., Epinat, B., Kervella, P., Desmars, J., Vieira-Martins, R., Kilic, Y., Gomes-Júnior, A. R., Camargo, J. I. B., Emilio, M., Vara-Lubiano, M., Kretlow, M., Albert, L., Alcock, C., Ball, J. G., Bender, K., Buie, M. W., Butterfield, K., Camarca, M., Castro-Chacón, J. H., Dunford, R., Fisher, R. S., Gamble, D., Geary, J. C., Gnilka, C. L., Green, K. D., Hartman, Z. D., Huang, C-K., Januszewski, H., Johnston, J., Kagitani, M., Kamin, R., Kavelaars, J. J., Keller, J. M., de Kleer, K. R., Lehner, M. J., Luken, A., Marchis, F., Marlin, T., McGregor, K., Nikitin, V., Nolthenius, R., Patrick, C., Redfield, S., Rengstorf, A. W., Reyes-Ruiz, M., Seccull, T., Skrutskie, M. F., Smith, A. B., Sproul, M., Stephens, A. W., Szentgyorgyi, A., Sánchez-Sanjuán, S., Tatsumi, E., Verbiscer, A., Wang, S-Y., Yoshida, F., Young, R., Zhang, Z-W.
Publikováno v:
A&A 673, L4 (2023)
Quaoar is a classical Trans-Neptunian Object (TNO) with an area equivalent diameter of 1,100 km and an orbital semi-major axis of 43.3 astronomical units. Based on stellar occultations observed between 2018 and 2021, an inhomogeneous ring (Q1R, Quaoa
Externí odkaz:
http://arxiv.org/abs/2304.09237