Results 41 to 50 of about 2,663 (150)

GravityCam: higher resolution visible wide-field imaging [PDF]

, 2018
The limits to the angular resolution has, during the latest 70 years, been obtainable from the ground only through extremely expensive adaptive optics facilities at large telescopes, and covering extremely small spatial areas per exposure.
Downing, Downing, Einstein, Ivezic, Jorden, Reid, Segovia, Stefanov   +7 more
core   +1 more source

Analysis of Planet Searching Scenarios: Radial Velocity, Gravitational Microlensing and Transit

Highlights in Science Engineering and Technology
As a matter of fact, since extrasolar planets are crucial celestial bodies for understanding stellar evolution and the starting point for investigating the origin of life, they have long been a focus of astronomical frontier research.
Ziqian Liu
semanticscholar   +1 more source

Terrestrial- and Neptune-mass Free-Floating Planet Candidates from the MOA-II 9 yr Galactic Bulge Survey

The Astronomical Journal, 2023
We report the discoveries of low-mass free-floating planet (FFP) candidates from the analysis of 2006–2014 MOA-II Galactic bulge survey data. In this data set, we found 6111 microlensing candidates and identified a statistical sample consisting of 3535 ...
Naoki Koshimoto, Takahiro Sumi, David P. Bennett, Valerio Bozza, Przemek Mróz, Andrzej Udalski, Nicholas J. Rattenbury, Fumio Abe, Richard Barry, Aparna Bhattacharya, Ian A. Bond, Hirosane Fujii, Akihiko Fukui, Ryusei Hamada, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Yuki Satoh, Daisuke Suzuki, Mio Tomoyoshi, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, Kansuke Yamashita, MOA Collaboration   +31 more
doaj   +1 more source

Toward Measuring the Microlensing Event Rate in the Galactic Center. I. Event Detection from the UKIRT Microlensing Survey Data

The Astrophysical Journal Supplement Series, 2023
To overcome the high optical extinction, near-infrared (NIR) observations are needed for probing the microlensing events toward the Galactic center. The 2015–2019 UKIRT microlensing survey toward the Galactic center is the first dedicated precursor NIR ...
Yongxin Wen, Weicheng Zang, Bo Ma
doaj   +1 more source

Analysis of Planet Searching and Detection: Radial Velocity, Gravitation Microlensing and Transiting

Highlights in Science Engineering and Technology
As a matter of fact, planet searching plays a critical role in astrophysics and cosmology. This paper focuses on three main methods of planetary search and detection: radial velocity, gravitational microlensing, and transit.
Yuanjing Li
semanticscholar   +1 more source

Prediction of Planet Yields by the PRime-focus Infrared Microlensing Experiment Microlensing Survey

The Astronomical Journal, 2023
The PRime-focus Infrared Microlensing Experiment (PRIME) will be the first to conduct a dedicated near-infrared microlensing survey by using a 1.8 m telescope with a wide field of view of 1.45 deg ^2 at the South African Astronomical Observatory.
Iona Kondo, Takahiro Sumi, Naoki Koshimoto, Nicholas J. Rattenbury, Daisuke Suzuki, David P. Bennett   +5 more
doaj   +1 more source

Ongoing astrometric microlensing events from VVV and Gaia [PDF]

, 2019
6 pages, 2 figures, accepted MNRAS LettersWe extend predictive microlensing event searches using the Vista Variables in the Via Lactea survey and the second Gaia data release.
Belokurov, Vasily, Evans, N. Wyn, Lucas, Philip W., McGill, Peter, Smith, Leigh C.   +4 more
core   +3 more sources

The Microlensing Planet Finder: Completing the Census of Extrasolar Planets in the Milky Way

, 2004
The Microlensing Planet Finder (MPF) is a proposed Discovery mission that will complete the first census of extrasolar planets with sensitivity to planets like those in our own solar system.
, Andrew Gould, Andrzej Udalski, B. Scott Gaudi, Bernard J. Rauscher, Bohdan Paczynski, Dante Minniti, David P. Bennett, Domenick Tenerelli, Edward Cheng, Ian Bond, John C. Mather, Jonathan I. Lunine, Kailash Sahu, Kim Griest, Malcolm Niedner, Matthew A. Greenhouse, Neville Woolf, Peter Garnavich, Phil Yock, R. M. Rich, Randy A. Kimble, Ronald Gilliland, Scott Friedman, Stanton Peale   +24 more
core   +1 more source

Binary-lens Microlensing Degeneracy: Impact on Planetary Sensitivity and Mass-ratio Function

The Astronomical Journal
Gravitational microlensing is a unique method for discovering cold planets across a broad mass range. Reliable statistics of the microlensing planets require accurate sensitivity estimates.
Yuxin Shang, Hongjing Yang, Jiyuan Zhang, Shude Mao, Andrew Gould, Weicheng Zang, Qiyue Qian, Jennifer C. Yee   +7 more
doaj   +1 more source

Super-Earths: A New Class of Planetary Bodies

, 2011
Super-Earths, a class of planetary bodies with masses ranging from a few Earth-masses to slightly smaller than Uranus, have recently found a special place in the exoplanetary science.
Armitage P. J., Christensen U. R., Clubb K., Dobrovolskis A. R., Fogg M. J., Ford E.B., Goldreich P., Haghighipour N., Haghighipour N., Hatzes A.P., Heng K., Michael S., Nader Haghighipour, Safronov V. S., Smoluchowski M. V., Sotin C., Stamenkovic V., Stamenkovic V., Steffen J. H., Swift D. C., Tackley P. J., Weidenschilling S. J.   +21 more
core   +1 more source