Zobrazeno 1 - 10
of 503
pro vyhledávání: '"Ivanov, V D"'
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.
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:
Sholukhova, O. N., Tikhonov, N. A., Solovyeva, Y. N., Sarkisian, A. N., Vinokurov, A. S., Valcheva, A. T., Nedialkov, P. L., Bizyaev, D. V., Williams, B. F., Ivanov, V. D.
We have selected candidate massive stars in the galaxy IC 342 based on archival images from the Hubble Space Telescope and images from the 2 m telescope at the Natioal Astronomical Observatory Rozhen, Bulgaria. Spectral observations of 24 out of 27 s
Externí odkaz:
http://arxiv.org/abs/2406.15270
Autor:
Zak, J., Boffin, H. M. J., Sedaghati, E., Bocchieri, A., Changeat, Q., Fukui, A., Hatzes, A., Hillwig, T., Hornoch, K., Itrich, D., Ivanov, V. D., Jones, D., Kabath, P., Kawai, Y., Mugnai, L. V., Murgas, F., Narita, N., Palle, E., Pascale, E., Pravec, P., Redfield, S., Roccetti, G., Roth, M., Srba, J., Tian, Q., Tsiaras, A., Turrini, D., Vignes, J. P.
Planetary systems in mean motion resonances hold a special place among the planetary population. They allow us to study planet formation in great detail as dissipative processes are thought to have played an important role in their existence. Additio
Externí odkaz:
http://arxiv.org/abs/2405.12409
Autor:
Zak, J., Bocchieri, A., Sedaghati, E., Boffin, H. M. J., Prudil, Z., Skarka, M., Changeat, Q., Pascale, E., Itrich, D., Ivanov, V. D., Vitkova, M., Kabath, P., Roth, M., Hatzes, A.
One can infer the orbital alignment of exoplanets with respect to the spin of their host stars using the Rossiter-McLaughlin effect, thereby giving us the chance to test planet formation and migration theories and improve our understanding of the cur
Externí odkaz:
http://arxiv.org/abs/2403.15631
Autor:
Lucas, P. W., Smith, L. C., Guo, Z., Peña, C. Contreras, Minniti, D., Miller, N., Alonso-García, J., Catelan, M., Borissova, J., Saito, R. K., Kurtev, R., Navarro, M. G., Morris, C., Muthu, H., Froebrich, D., Ivanov, V. D., Bayo, A., Garatti, A. Caratti o, Sanders, J. L.
We have performed a comprehensive search of a VISTA Variables in the Via Lactea (VVV) database of 9.5 yr light curves for variable sources with $\Delta K_s \ge 4$ mag, aiming to provide a large sample of high amplitude eruptive young stellar objects
Externí odkaz:
http://arxiv.org/abs/2401.14471
We report photometry of the intranight variability of the dwarf nova RX And in two bands (B and V). The observations are carried out during three nights in November-December 2022 at the 50/70~cm Schmidt telescope of the Rozhen National Astronomical O
Externí odkaz:
http://arxiv.org/abs/2303.08616
Autor:
Niederhofer, F., Cioni, M. -R. L., Schmidt, T., Bekki, K., de Grijs, R., Ivanov, V. D., Oliveira, J. M., Ripepi, V., Subramanian, S., van Loon, J. Th.
We present proper motion (PM) measurements within the central region of the Large Magellanic Cloud (LMC) using near-infrared data from the VISTA survey of the Magellanic Cloud system (VMC). This work encompasses 18 VMC tiles covering a total sky area
Externí odkaz:
http://arxiv.org/abs/2203.14369
Autor:
Minev, M., Ivanov, V. D., Trifonov, T., Ovcharov, E., Fabrika, S., Sholukhova, O., Vinokurov, A., Valcheva, A., Nedialkov, P.
We report here the first results from a 15-yr long variability monitoring of the z=2.0 quasar QSO B1312+7837. It shows luminosity changes with a period P~6.13 yr (P~2.04 yr at rest frame) and an amplitude of ~0.2mag, superimposed on a gradual dimming
Externí odkaz:
http://arxiv.org/abs/2109.13817
Autor:
Gasparri, D., Morelli, L., Ivanov, V. D., François, P., Pizzella, A., Coccato, L., Corsini, E. M., Bontà, E. Dalla, Costantin, L., Cesetti, M.
We measured the equivalent width of a large set of near-infrared (NIR, 0.8--2.4$ \ \mu$m) line-strength indices in the XShooter medium-resolution spectra of the central regions of 14 galaxies. We found that two aluminum indices Al at 1.31 $\mu$m and
Externí odkaz:
http://arxiv.org/abs/2109.03131
Autor:
Pathak, P., de la Roche, D. J. M. Petit dit, Kasper, M., Sterzik, M., Absil, O., Boehle, A., Feng, F., Ivanov, V. D., Janson, M., Jones, H. R. A., Kaufer, A., Käufl, H. -U., Maire, A. -L., Meyer, M., Pantin, E., Siebenmorgen, R., Ancker, M. E. van den, Viswanath, G.
Publikováno v:
A&A 652, A121 (2021)
The direct imaging of rocky exoplanets is one of the major science goals for upcoming large telescopes. The contrast requirement for imaging such planets is challenging. However, the mid-IR (InfraRed) regime provides the optimum contrast to directly
Externí odkaz:
http://arxiv.org/abs/2104.13032