Zobrazeno 1 - 10
of 982
pro vyhledávání: '"Sajadian SO"'
Autor:
Sajadian, Sedighe, Fatheddin, Hossein
In an edge-on and detached binary system, including a white dwarf (WD) and a main-sequence star (WDMS), when the source star is passing behind the compact companion its light is bent and magnified. Meanwhile, some part of its images' area is obscured
Externí odkaz:
http://arxiv.org/abs/2410.04550
Autor:
Sajadian, Sedighe, Afshordi, Niayesh
A fraction of Galactic stars have compact companions which could be white dwarfs (WDs), neutron stars (NSs) or stellar-mass black holes (SBHs). In a detached and edge-on binary system including a main-sequence star and a compact object (denoted by WD
Externí odkaz:
http://arxiv.org/abs/2409.12441
We study the statistics and properties of microlensing events that can be detected by the Transiting Exoplanet Survey Satellite(TESS) based on Monte Carlo simulations. We simulate potential microlensing events from a sample of the TESS Candidate Targ
Externí odkaz:
http://arxiv.org/abs/2408.14231
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:
Fatheddin, Hossein, Sajadian, Sedighe
Transit photometry is currently the most efficient and sensitive method for detecting extrasolar planets (exoplanets) and a large majority of confirmed exoplanets have been detected with this method. The substantial success of space-based missions su
Externí odkaz:
http://arxiv.org/abs/2404.05323
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:
Sangtarash, Parisa, Sajadian, Sedighe
One of most important applications of microlensing observations is detecting free-floating planets(FFPs). The time scale of microlensing due to FFPs ($t_{\rm E}$) is short (a few days). Discerning the annual parallax effect in observations from these
Externí odkaz:
http://arxiv.org/abs/2403.16089
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:
Rożek, Agata, Snodgrass, Colin, Jørgensen, Uffe G., Pravec, Petr, Bonavita, Mariangela, Rabus, Markus, Khalouei, Elahe, Longa-Peña, Penélope, Burgdorf, Martin J., Donaldson, Abbie, Gardener, Daniel, Crake, Dennis, Sajadian, Sedighe, Bozza, Valerio, Skottfelt, Jesper, Dominik, Martin, Fynbo, J., Hinse, Tobias C., Hundertmark, Markus, Rahvar, Sohrab, Southworth, John, Tregloan-Reed, Jeremy, Kretlow, Mike, Rota, Paolo, Peixinho, Nuno, Andersen, Michael, Amadio, Flavia, Barrios-López, Daniela, Baeza, Nora Soledad Castillo
The NASA's Double-Asteroid Redirection Test (DART) was a unique planetary defence and technology test mission, the first of its kind. The main spacecraft of the DART mission impacted the target asteroid Dimorphos, a small moon orbiting asteroid (6580
Externí odkaz:
http://arxiv.org/abs/2311.01982
Autor:
Kareta, Theodore, Thomas, Cristina, Li, Jian-Yang, Knight, Matthew M., Moskovitz, Nicholas, Rozek, Agata, Bannister, Michele T., Ieva, Simone, Snodgrass, Colin, Pravec, Petr, Ryan, Eileen V., Ryan, William H., Fahnestock, Eugene G., Rivkin, Andrew S., Chabot, Nancy, Fitzsimmons, Alan, Osip, David, Lister, Tim, Sarid, Gal, Hirabayashi, Masatoshi, Farnham, Tony, Tancredi, Gonzalo, Michel, Patrick, Wainscoat, Richard, Weryk, Rob, Burrati, Bonnie, Pittichova, Jana, Ridden-Harper, Ryan, Tan, Nicole J., Tristram, Paul, Brown, Tyler, Bonavita, Mariangela, Burgdorf, Martin, Khalouei, Elahe, Longa, Penelope, Rabus, Markus, Sajadian, Sedighe, Jorgensen, Uffe Graae, Dominik, Martin, Kikwaya, Jean-Baptiste, Epifani, Elena Mazzotta, Dotto, Elisabetta, Deshapriya, J. D. Prasanna, Hasselmann, Pedro H., Dall'Ora, Massimo, Abe, Lyu, Guillot, Tristan, Mekarnia, Djamel, Agabi, Abdelkrim, Bendjoya, Philippe, Suarez, Olga, Triaud, Amaury, Gasparetto, Thomas, Gunther, Maximillian N., Kueppers, Michael, Merin, Bruno, Chatelain, Joseph, Gomez, Edward, Usher, Helen, Stoddard-Jones, Cai, Bartnik, Matthew, Bellaver, Michael, Chetan, Brenna, Dugan, Emma, Fallon, Tori, Fedewa, Jeremy, Gerhard, Caitlyn, Jacobson, Seth A., Painter, Shane, Peterson, David-Michael, Rodriguez, Joseph E., Smith, Cody, Sokolovsky, Kirill V., Sullivan, Hannah, Townley, Kate, Watson, Sarah, Webb, Levi, Trigo-Rodrıguez, Josep M., Llenas, Josep M., Perez-Garcıa, Ignacio, Castro-Tirado, A. J., Vincent, Jean-Baptiste, Migliorini, Alessandra, Lazzarin, Monica, La Forgia, Fiorangela, Ferrari, Fabio, Polakis, Tom, Skiff, Brian
The impact of the DART spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos' orbit substantially, largely from the ejection of material. We present results from twelve Earth-based facilities involved in a world-wide campaign to
Externí odkaz:
http://arxiv.org/abs/2310.12089