Results 71 to 80 of about 1,852 (121)

Deep learning exoplanets detection by combining real and synthetic data. [PDF]

PLoS One, 2022
Cuéllar S, Granados P, Fabregas E, Curé M, Vargas H, Dormido-Canto S, Farias G.   +6 more
europepmc   +1 more source

Planet Mass Function around M Stars at 1–10 au: A Plethora of Sub-Earth Mass Objects

The Astrophysical Journal
Small planets (≲1 M _⊕ ) at intermediate orbital distances (∼1 au) represent an uncharted territory in exoplanetary science. The upcoming microlensing survey by the Nancy Grace Roman Space Telescope will be sensitive to objects as light as Ganymede and ...
Yayaati Chachan, Eve J. Lee
doaj   +1 more source

Subaru Telescope -History, active/adaptive optics, instruments, and scientific achievements. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2021
Iye M.
europepmc   +1 more source

The Robo-AO-2 facility for rapid visible/near-infrared AO imaging and the demonstration of hybrid techniques [PDF]

, 2018
We are building a next-generation laser adaptive optics system, Robo-AO-2, for the UH 2.2-m telescope that will deliver robotic, diffraction-limited observations at visible and near-infrared wavelengths in unprecedented numbers.
Baranec, Christoph, Chun, Mark, Connelley, Michael, de Pater, Imke, Dekany, Richard, Griffiths, Richard, Guyon, Olivier, Hall, Donald, Hammel, Heidi, Hodapp, Klaus, Huber, Daniel, Kasliwal, Mansi, Kissler-Patig, Markus, Kuchner, Marc, Lau, Ryan, Law, Nicholas M., Liu, Michael, Magnier, Eugene, Meech, Karen, Moore, Anna, Ofek, Eran, Riddle, Reed, Simon, Amy, Takamiya, Marianne, van Dam, Marcos A., Wong, Mike   +25 more
core   +1 more source

Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. III. Detectability of Giant Exomoons of Wide-separation Giant Planets

The Astronomical Journal
The Nancy Grace Roman Space Telescope (Roman) will conduct a Galactic Exoplanet Survey to discover bound and free-floating exoplanets using gravitational microlensing. Roman should be sensitive to lenses with mass down to ∼0.02 M _⊕ , or roughly the mass
Matthew Lastovka, B. Scott Gaudi, Samson A. Johnson, Matthew T. Penny, Eamonn Kerins, Nicholas J. Rattenbury   +5 more
doaj   +1 more source

Simulating Gravitational Microlensing Events by TESS: Predictions on Statistics and Properties

The Astronomical Journal
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 TESS Candidate Target List
Sedighe Sajadian, Atousa Kalantari, Hossein Fatheddin, Somayeh Khakpash   +3 more
doaj   +1 more source

Exoplanets and brown dwarfs detections through gravitational microlensing. Study of interferometric observations

, 2015
L'effet de microlentille gravitationnelle est devenu un outil unique pour détecter des exoplanètes. Il se produit lorsqu'une étoile de premier plan (la microlentille) et une étoile d'arrière plan (la source) sont alignées avec la Terre. La lumière provenant de l'étoile la plus lointaine, souvent dans le bulbe galactique, est alors déviée par la ...
openaire   +1 more source

OGLE-2016-BLG-1195Lb: A Sub-Neptune Beyond the Snow Line of an M-dwarf Confirmed by Keck Adaptive Optics

The Astronomical Journal
We present the analysis of high-resolution follow-up observations of OGLE-2016-BLG-1195 using Laser Guide Star Adaptive Optics with Keck, seven years after the event’s peak.
Aikaterini Vandorou, Lisa Dang, David P. Bennett, Naoki Koshimoto, Sean K. Terry, Andrzej Udalski, Jean-Philippe Beaulieu, Christophe Alard, Aparna Bhattacharya, Joshua W. Blackman, Ian A. Bond, Tarik Bouchoutrouch-Ku, Andrew A. Cole, Nicolas B. Cowan, Jean-Baptiste Marquette, Clément Ranc, Natalia E. Rektsini, Sylvain Cetre, Jim Lyke, Eduardo Marin, Peter Wizinowich   +20 more
doaj   +1 more source

The Brown-dwarf Desert Persists as a Mass-ratio Desert around Low-mass Stars

The Astrophysical Journal Letters
Sun-like stars are known to host a paucity of brown-dwarf companions at close separations. Direct imaging surveys of intermediate-mass stars have suggested that the brown-dwarf desert may be fundamentally a feature in the mass ratio. Microlensing surveys
Keming Zhang
doaj   +1 more source

Wide-Field InfraRed Survey Telescope (WFIRST) Final Report

, 2012
In December 2010, NASA created a Science Definition Team (SDT) for WFIRST, the Wide Field Infra-Red Survey Telescope, recommended by the Astro 2010 Decadal Survey as the highest priority for a large space mission.
Anderson, J., Baltay, C., Barry, R. K., Bean, R., Bennett, D., Brown, R., Cheng, E., Conselice, C., Content, D., Cook, K., Cutri, R., Donahue, M., Fan, X., Garnavich, P., Gaudi, B. S., Gehrels, N., Goullioud, R., Grady, K., Green, J., Helou, G., Hillenbrand, L., Hirata, C., Ivezic, Z., Jackson, C., Kalirai, J., Kerins, E., Kruk, J., Lauer, T., Lunine, J., McDonald, P., Melton, M., Nichol, B., Padmanabhan, N., Peddie, C., Penny, M., Perlmutter, S., Phillips, M., Rauscher, B., Rhodes, J., Rieke, G., Riess, A., Rioux, N., Roellig, T., Sambruna, R., Schechter, P., Seiffert, M., Stern, D., Sumi, T., Tanner, A., Traub, W., van der Marel, R., Wang, Y., Weinberg, D., Wright, E.   +53 more
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