Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Sajadian, S"'
Autor:
Jaimes, R. Figuera, Catelan, M., Horne, K., Skottfelt, J., Snodgrass, C., Dominik, M., Jørgensen, U. G., Southworth, J., Hundertmark, M., Longa-Peña, P., Sajadian, S., Tregolan-Reed, J., Hinse, T. C., Andersen, M. I., Bonavita, M., Bozza, V., Burgdorf, M. J., Haikala, L., Khalouei, E., Korhonen, H., Peixinho, N., Rabus, M., Rahvar, S.
Publikováno v:
A&A 689, A108 (2024)
Context. High frame-rate imaging was employed to mitigate the effects of atmospheric turbulence (seeing) in observations of globular cluster Terzan 5. Aims. High-precision time-series photometry has been obtained with the highest angular resolution s
Externí odkaz:
http://arxiv.org/abs/2406.18733
Autor:
Rota, P., Bozza, V., Hundertmark, M., Bachelet, E., Street, R., Tsapras, Y., Cassan, A., Dominik, M., Jaimes, R. Figuera, Rybicki, K. A., Wambsganss, J., Wyrzykowski, L., Zielinski, P., Bonavita, M., Hinse, T. C., Jorgensen, U. G., Khalouei, E., Korhonen, H., Longa-Pena, P., Peixinho, N., Rahvar, S., Sajadian, S., Skottfelt, J., Snodgrass, C., Tregolan-Reed, J.
Publikováno v:
A&A 686, A173 (2024)
Context. Gravitational microlensing is a method that is used to discover planet-hosting systems at distances of several kiloparsec in the Galactic disk and bulge. We present the analysis of a microlensing event reported by the Gaia photometric alert
Externí odkaz:
http://arxiv.org/abs/2404.05078
Autor:
Biagiotti, F., Mancini, L., Southworth, J., Tregloan-Reed, J., Naponiello, L., Jørgensen, U. G., Bach-Møller, N., Basilicata, M., Bonavita, M., Bozza, V., Burgdorf, M. J., Dominik, M., Jaimes, R. Figuera, Henning, Th., Hinse, T. C., Hundertmark, M., Khalouei, E., Longa-Peña, P., Peixinho, N., Rabus, M., Rahvar, S., Sajadian, S., Skottfelt, J., Snodgrass, C., Jongen, Y., Vignes, J. -P.
Our aim in this paper is to refine the orbital and physical parameters of the HATS-2 planetary system and study transit timing variations and atmospheric composition thanks to transit observations that span more than ten years and that were collected
Externí odkaz:
http://arxiv.org/abs/2403.04476
Autor:
Barkaoui, K., Timmermans, M., Soubkiou, A., Rackham, B. V., Burgasser, A. J., Chouqar, J., Pozuelos, F. J., Collins, K. A., Howell, S. B., Simcoe, R., Melis, C., Stassun, K. G., Tregloan-Reed, J., Cointepas, M., Gillon, M., Bonfils, X., Furlan, E., Gnilka, C. L., Almenara, J. M., Alonso, R., Benkhaldoun, Z., Bonavita, M., Bouchy, F., Burdanov, A., Chinchilla, P., Davoudi, F., Delrez, L., Demangeon, O., Dominik, M., Demory, B. -O., de Wit, J., Dransfield, G., Ducrot, E., Fukui, A., Hinse, T. C., Hooton, M. J., Jehin, E., Jenkins, J. M., Jørgensen, U. G., Latham, D. W., Garcia, L., Carrazco-Gaxiola, S., Ghachoui, M., Chew, Y. Gómez Maqueo, Günther, M. N., McCormac, J., Murgas, F., Murray, C. A., Narita, N., Niraula, P., Pedersen, P. P., Queloz, D., Rebolo-López, R., Ricker, G., Sabin, L., Sajadian, S., Schanche, N., Schwarz, R. P., Seager, S., Sebastian, D., Sefako, R., Sohy, S., Southworth, J., Srdoc, G., Thompson, S. J., Triaud, A. H. M. J., Vanderspek, R., Wells, R. D., Winn, J. N., Zúñiga-Fernández, S.
We present the discovery and validation of two TESS exoplanets orbiting nearby M dwarfs: TOI-2084b, and TOI-4184b. We characterized the host stars by combining spectra from Shane/Kast and Magellan/FIRE, SED (Spectral Energy Distribution) analysis, an
Externí odkaz:
http://arxiv.org/abs/2306.15095
Autor:
Southworth, John, Mancini, L., Dominik, M., Jørgensen, U. G., Bozza, V., Burgdorf, M. J., Jaimes, R. Figuera, Haikala, L. K., Henning, Th., Hinse, T. C., Hundertmark, M., Longa-Peña, P., Rabus, M., Rahvar, S., Sajadian, S., Skottfelt, J., Snodgrass, C.
TRAPPIST-1 is an ultra-cool dwarf that hosts seven known transiting planets. We present photometry of the system obtained using three telescopes at ESO La Silla (the Danish 1.54-m telescope and the 2.2-m MPI telescope) and Paranal (Unit Telescope 1 o
Externí odkaz:
http://arxiv.org/abs/2207.05874
Autor:
Southworth, John, Barker, A. J., Hinse, T. C., Jongen, Y., Dominik, M., Jørgensen, U. G., Longa-Peña, P., Sajadian, S., Snodgrass, C., Tregloan-Reed, J., Bach-Møller, N., Bonavita, M., Bozza, V., Burgdorf, M. J., Jaimes, R. Figuera, Helling, Ch., Hitchcock, J. A., Hundertmark, M., Khalouei, E., Korhonen, H., Mancini, L., Peixinho, N., Rahvar, S., Rabus, M., Skottfelt, J., Spyratos, P.
HATS-18b is a transiting planet with a large mass and a short orbital period, and is one of the best candidates for the detection of orbital decay induced by tidal effects. We present extensive photometry of HATS-18 from which we measure 27 times of
Externí odkaz:
http://arxiv.org/abs/2207.05873
Autor:
Herald, A., Udalski, A., Bozza, V., Rota, P., Bond, I. A., Yee, J. C., Sajadian, S., Mroz, P., Poleski, R., Skowron, J., Szymanski, M. K., Soszynski, I., Pietrukowicz, P., Kozlowski, S., Ulaczyk, K., Rybicki, K. A., Iwanek, P., Wrona, M., Gromadzki, M., Abe, F., Barry, R., Bennett, D. P., Bhattacharya, A., Fukui, A., Fujii, H., Hirao, Y., Itow, Y., Kirikawa, R., Kondo, I., Koshimoto, N., Matsubara, Y., Matsumoto, S., Miyazaki, S., Muraki, Y., Olmschenk, G., Ranc, C., Okamura, A., Rattenbury, N. J., Satoh, Y., Sumi, T., Suzuki, D., Silva, S. Ishitani, Toda, T., Tristram, P. J., Vandorou, A., Yama, H., Beichman, C. A., Bryden, G., Novati, S. Calchi, Carey, S., Gaudi, B. S., Gould, A., Henderson, C. B., Johnson, S., Shvartzvald, Y., Zhu, W., Dominik, M., Hundertmark, M., Jorgensen, U. G., Longa-Pena, P., Skottfelt, J., Tregloan-Reed, J., Bach-Moller, N., Burgdorf, M., D'Ago, G., Haikala, L., Hitchcock, J., Khalouei, E., Peixinho, N., Rahvar, S., Snodgrass, C., Southworth, J., Spyratos, P., Zang, W., Yang, H., Mao, S., Bachelet, E., Maoz, D., Street, R. A., Tsapras, Y., Christie, G. W., Cooper, T., de Almeida, L., Nascimento Jr, J. -D. do, Green, J., Han, C., Hennerley, S., Marmont, A., McCormick, J., Monard, L. A. G., Natusch, T., Pogge, R.
Publikováno v:
A&A 663, A100 (2022)
Context. Brown dwarfs are poorly understood transition objects between stars and planets, with several competing mechanisms having been proposed for their formation. Mass measurements are generally difficult for isolated objects but also for brown dw
Externí odkaz:
http://arxiv.org/abs/2203.04034
Autor:
Kelley, Michael S. P., Farnham, Tony L., Li, Jian-Yang, Bodewits, Dennis, Snodgrass, Colin, Allen, Johannes, Bellm, Eric C., Coughlin, Michael W., Drake, Andrew J., Duev, Dmitry A., Graham, Matthew J., Kupfer, Thomas, Masci, Frank J., Reiley, Dan, Walters, Richard, Dominik, M., Jørgensen, U. G., Andrews, A., Bach-Møller, N., Bozza, V., Burgdorf, M. J., Campbell-White, J., Dib, S., Fujii, Y. I., Hinse, T. C., Hundertmark, M., Khalouei, E., Longa-Peña, P., Rabus, M., Rahvar, S., Sajadian, S., Skottfelt, J., Southworth, J., Tregloan-Reed, J., Unda-Sanzana, E.
Cometary activity is a manifestation of sublimation-driven processes at the surface of nuclei. However, cometary outbursts may arise from other processes that are not necessarily driven by volatiles. In order to fully understand nuclear surfaces and
Externí odkaz:
http://arxiv.org/abs/2105.05826
Autor:
Kondo, Iona, Yee, Jennifer C., Bennett, David P., Sumi, Takahiro, Koshimoto, Naoki, Bond, Ian A., Gould, Andrew, Udalski, Andrzej, Shvartzvald, Yossi, Jung, Youn Kil, Zang, Weicheng, Bozza, Valerio, Bachelet, Etienne, Hundertmark, Markus P. G., Rattenbury, Nicholas J., Abe, F., Barry, R., Bhattacharya, A., Donachie, M., Fukui, A., Fujii, H., Hirao, Y., Silva, S. Ishitani, Itow, Y., Kirikawa, R., Li, M. C. A., Matsubara, Y., Miyazaki, S., Muraki, Y., Olmschenk, G., Ranc, C., Satoh, Y., Shoji, H., Suzuki, D., Tanaka, Y., Tristram, P. J., Yamawaki, T., Yonehara, A., Mróz, P., Poleski, R., Skowron, J., Szymański, M. K., Soszyński, I., Kozłowski, S., Ulaczyk, P. Pietrukowicz K., Rybicki, K. A., Iwanek, P., Wrona, M., Albrow, M. D., Chung, S. -J., Han, C., Hwang, K. -H., Kim, H. -W., Shin, I. -G., Cha, S. -M., Kim, D. -J., Kim, S. -L., Lee, C. -U., Lee, D. -J., Lee, Y., Park, B. -G., Pogge, R. W., Ryu, Y. -H., Beichman, C. A., Bryden, G., Novati, S. Calchi, Carey, S., Gaudi, B. S., Henderson, C. B., Zhu, W., Maoz, D., Penny, M. T., Dominik, M., Jørgensen, U. G., n}}a, P. Longa-Pe{\~{, Peixinho, N., Sajadian, S., Skottfelt, J., Snodgrass, C., Tregloan-Reed, J., Burgdorf, M. J., Campbell-White, J., Dib, S., Fujii, Y. I., Hinse, T. C., Khalouei, E., Rahvar, S., Rabus, M., Southworth, J., Tsapras, Y., Street, R. A., Bramich, D. M., Cassan, A., Horne, K., Wambsganss, J., Mao, S., Saha, A.
We report the analysis of planetary microlensing event OGLE-2018-BLG-1185, which was observed by a large number of ground-based telescopes and by the $Spitzer$ Space Telescope. The ground-based light curve indicates a low planet-host star mass ratio
Externí odkaz:
http://arxiv.org/abs/2104.02157
Autor:
Hitchcock, J. A., Helling, Ch., Scholz, A., Hodosan, G., Dominik, M., Hundertmark, M., Jørgensen, U. G., Longa-Peña, P., Sajadian, S., Skottfelt, J., Snodgrass, C., Bozza, V., Burgdorf, M. J., Campbell-White, J., Jaimes, Roberto Figuera, Fujii, Y. I., Haikala, L. K., Henning, T., Hinse, T. C., Lowry, S., Mancini, L., Rahvar, S., Rabus, M., Southworth, J., von Essen, C.
We present the results of 14 nights of \textit{I}-band photometric monitoring of the nearby brown dwarf binary, $\epsilon$ Indi Ba,Bb. Observations were acquired over 2 months, and total close to 42 hours of coverage at a typically high cadence of 1.
Externí odkaz:
http://arxiv.org/abs/2005.06906