Results 31 to 40 of about 15,525 (87)

Accurate Mass Measurements for Planetary Microlensing Events Using High Angular Resolution Observations

Universe, 2018
The microlensing technique is a unique method to hunt for cold planets over a range of mass and separation, orbiting all varieties of host stars in the disk of our galaxy.
Jean-Philippe Beaulieu
doaj   +1 more source

A Close Binary Lens Revealed by the Microlensing Event Gaia20bof

The Astronomical Journal
During the last 25 yr, hundreds of binary stars and planets have been discovered toward the Galactic bulge by microlensing surveys. Thanks to a new generation of large-sky surveys, it is now possible to regularly detect microlensing events across the ...
E. Bachelet, P. Rota, V. Bozza, P. Zieliński, Y. Tsapras, M. Hundertmark, J. Wambsganss, Ł. Wyrzykowski, P. J. Mikołajczyk, R. A. Street, R. Figuera Jaimes, A. Cassan, M. Dominik, D. A. H. Buckley, S. Awiphan, N. Nakhaharutai, S. Zola, K. A. Rybicki, M. Gromadzki, K. Howil, N. Ihanec, M. Jabłońska, K. Kruszyńska, K. Kruszyńska, U. Pylypenko, M. Ratajczak, M. Sitek, M. Rabus   +27 more
doaj   +1 more source

Unveiling MOA-2007-BLG-192: An M Dwarf Hosting a Likely Super-Earth

The Astronomical Journal
We present an analysis of high-angular-resolution images of the microlensing target MOA-2007-BLG-192 using Keck adaptive optics and the Hubble Space Telescope.
Sean K. Terry, Jean-Philippe Beaulieu, David P. Bennett, Euan Hamdorf, Aparna Bhattacharya, Viveka Chaudhry, Andrew A. Cole, Naoki Koshimoto, Jay Anderson, Etienne Bachelet, Joshua W. Blackman, Ian A. Bond, Jessica R. Lu, Jean Baptiste Marquette, Clément Ranc, Natalia E. Rektsini, Kailash Sahu, Aikaterini Vandorou   +17 more
doaj   +1 more source

Parallax

, 2012
What if our lives became intertwined for eternity with the strangers that exist alongside us; the people we have never known? It would be strange to think that a part of them were a part of you.
Prichard, Rebecca
core   +6 more sources

Precise Mass Measurement of OGLE-2013-BLG-0132/MOA-2013-BLG-148: A Saturn-mass Planet Orbiting an M Dwarf

The Astronomical Journal
We revisit the planetary microlensing event OGLE-2013-BLG-0132/MOA-2013-BLG-148 using Keck adaptive optics imaging in 2013 with NIRC2 and in 2020, 7.4 yr after the event, with OSIRIS.
Natalia E. Rektsini, Virginie Batista, Clément Ranc, David P. Bennett, Jean-Philippe Beaulieu, Joshua W. Blackman, Andrew A. Cole, Sean K. Terry, Naoki Koshimoto, Aparna Bhattacharya, Aikaterini Vandorou, Thomas J. Plunkett, Jean-Baptiste Marquette   +12 more
doaj   +1 more source

OGLE-2016-BLG-0168 Binary Microlensing Event: Prediction and Confirmation of the Microlens Parallax Effect from Space-based Observations [PDF]

, 2018
© 2017. The American Astronomical Society. All rights reserved.. The microlens parallax is a crucial observable for conclusively identifying the nature of lens systems in microlensing events containing or composed of faint (even dark) astronomical ...
Cha SM, Mróz P, Albrow MD, Henderson CB, Kozłowski S, Lee CU, Ryu YH, Hwang KH, Pogge RW, Chung SJ, Kim HW, Yee JC, Szymański MK, Pietrukowicz P, Kim SL, Gould A, Kim DJ, Udalski A, Carey S, Soszyński I, Park BG, Beichman C, Poleski R, Ulaczyk K, Shin IG, Bryden G, Skowron J, Pawlak M, Shvartzvald Y, Gaudi BS, Novati SC, Zhu W, Lee Y, Han C, Jung YK   +34 more
core   +1 more source

Influence of Black Hole Kick Velocity on Microlensing Distributions

The Astrophysical Journal
The natal kick velocity distribution for black holes (BHs) is unknown regardless of its importance for understanding the BH formation process. Gravitational microlensing is a unique tool for studying the distribution of BHs in our Galaxy, and the first ...
Naoki Koshimoto, Norita Kawanaka, Daichi Tsuna   +2 more
doaj   +1 more source

Primordial Black Hole Dark Matter Simulations Using PopSyCLE

The Astrophysical Journal
Primordial black holes (PBHs), theorized to have originated in the early Universe, are speculated to be a viable form of dark matter. If they exist, they should be detectable through photometric and astrometric signals resulting from gravitational ...
Kerianne Pruett, William Dawson, Michael S. Medford, Jessica R. Lu, Casey Lam, Scott Perkins, Peter McGill, Nathan Golovich, George Chapline   +8 more
doaj   +1 more source

The PRime-focus Infrared Microlensing Experiment (PRIME): First Results

The Astronomical Journal
We present the description of the instruments and the first results of the PRime-focus Infrared Microlensing Experiment (PRIME). PRIME is the first dedicated near-infrared (NIR) microlensing survey telescope, and is located at the South African ...
Takahiro Sumi, David A. H. Buckley, Alexander S. Kutyrev, Motohide Tamura, David P. Bennett, Ian A. Bond, Giuseppe Cataldo, Joseph M. Durbak, S. Bradley Cenko, Dale Fixsen, Orion Guiffreda, Ryusei Hamada, Yuki Hirao, Asahi Idei, Dan Kelly, Markus Loose, Gennadiy N. Lotkin, Eric I. Lyness, Stephen Maher, Shuma Makida, Noriyuki Matsunaga, Shota Miyazaki, Gregory Mosby, Samuel H. Moseley, Tutumi Nagai, Togo Nagano, Seiya Nakayama, Mayu Nishio, Kansuke Nunota, Ryo Ogawa, Ryunosuke Oishi, Yui Okumoto, Nicholas J. Rattenbury, Yuki K. Satoh, Elmer H. Sharp, Daisuke Suzuki, Takuto Tamaoki, Eleonora Troja, Sarah V. White, Hibiki Yama, (PRIME collaboration)   +40 more
doaj   +1 more source

Jupiter-like planets might be common in a low-density environment. [PDF]

Nat Commun, 2023
Gratton R, Mesa D, Bonavita M, Zurlo A, Marino S, Kervella P, Desidera S, D'Orazi V, Rigliaco E.   +8 more
europepmc   +1 more source