Results 71 to 80 of about 168,724 (208)

Detectability of microlensed gravitational waves

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Gravitational lensing describes the bending of the trajectories of light and gravitational waves due to the gravitational potential of a massive object. Strong lensing by galaxies can create multiple images with different overall amplifications, arrival times, and image types. If, furthermore, the gravitational wave encounters a
Simon M C Yeung, Mark H Y Cheung, Eungwang Seo, Joseph A J Gais, Otto A Hannuksela, Tjonnie G F Li   +5 more
openaire   +2 more sources

Gravitational Microlensing timeline

, 2016
An infographic about how gravitational microlensing, the warping of spacetime, can be used to discover new ...
Edward Gomez (3093198)
core   +1 more source

Microlensing of circumstellar envelopes: II. emission lines from radial and azimuthal flow during fold caustic crossings [PDF]

, 2003
This paper examines the line profile evolution due to bulk motion in circumstellar envelopes during microlensing fold caustic crossing events. These events have recently been shown to be a sensitive probe of stellar surface brightness profiles, thus ...
Bryce, H.M., Hendry, M.A., Ignace, R., H. M. Bryce, M. A. Hendry, R. Ignace   +5 more
core   +1 more source

Systematic KMTNet Planetary Anomaly Search. X. Complete Sample of 2017 Prime-field Planets

The Astronomical Journal
We complete the analysis of planetary candidates found by the KMT AnomalyFinder for the 2017 prime fields that cover ∼13 deg ^2 . We report three unambiguous planets: OGLE-2017-BLG-0640, OGLE-2017-BLG-1275, and OGLE-2017-BLG-1237.
Yoon-Hyun Ryu, Andrzej Udalski, Jennifer C. Yee, Weicheng Zang, Yossi Shvartzvald, Cheongho Han, Andrew Gould, Lead Authors, Michael D. Albrow, Sun-Ju Chung, Kyu-Ha Hwang, Youn Kil Jung, In-Gu Shin, Hongjing Yang, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, Hanyue Wang, The KMTNet Collaboration, Przemek Mróz, Michał K. Szymański, Jan Skowron, Radek Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, The OGLE Collaboration, Charles Beichman, Geoffry Bryden, Sean Carey, Calen B. Henderson, Sebastiano Calchi Novati, Wei Zhu, The Spitzer Team, Savannah Jacklin, Matthew T. Penny, The UKIRT Team   +45 more
doaj   +1 more source

Degeneracies in triple gravitational microlensing [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
We study microlensing light curves by a triple lens, in particular, by a primary star plus two planets. A four-fold degeneracy is confirmed in the light curves, similar to the close and wide degeneracy found in a double lens. Furthermore, we derive a set of equations for triple-lens in the external shear approximation.
Mao, Shude, {Song}, Y-Y, {Mao}, S, {An}, J H   +3 more
openaire   +3 more sources

Gravitational microlensing: Results and perspectives in brief [PDF]

Physics of Particles and Nuclei, 2008
8 pages, 1 figure, An invited lecture at the Helmholtz International Summer School "Dense Matter in Heavy Ion Collisions and Astrophysics", Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia, August 21 - September 1, 2006, added reference, corrected ...
openaire   +2 more sources

Accretion Disk Size and Updated Time-delay Measurements in the Gravitationally Lensed Quasar SDSS J165043.44+425149.3

The Astrophysical Journal
We analyze variability in 15-season optical lightcurves from the doubly imaged lensed quasar SDSS J165043.44+425149.3 (SDSS1650), comprising five seasons of monitoring data from the Maidanak Observatory (277 nights in total, including the two seasons of ...
A. B. Rivera, C. W. Morgan, S. M. Florence, K. Kniezewski, M. Millon, F. Courbin, S. E. Dahm, F. J. Vrba, T. M. Tilleman, M. A. Cornachione, I. M. Asfandiyarov, S. A. Ehgamberdiev, O. A. Burkhonov   +12 more
doaj   +1 more source

The gravitational microlens influence on X-ray spectral line generated by an AGN accretion disc [PDF]

Serbian Astronomical Journal, 2001
The influence of gravitational microlensing on the X-ray spectral line profiles originated from a relativistic accretion disc has been studied. Using a disc model, we show that microlensing can induce noticeable changes in the line shapes when the ...
Popović L.Č., Mediavilla E.G., Munoz J.A., Dimitrijević M.S., Jovanović P.   +4 more
doaj   +1 more source

Gravitational Microlensing by a Galactic Bar

The Astronomical Journal, 1995
Observations have found that the microlensing optical depth in the direction of the galactic center is larger than theoretical predictions. Here we investigate the effect a galactic bar has on microlensing. We use two models for the bar in order to find the range of microlensing predications.
openaire   +1 more source

Residual Test to Search for Microlensing Signatures in Strongly Lensed Gravitational Wave Signals

The Astrophysical Journal
When a gravitational wave signal encounters a massive object, such as a galaxy or galaxy cluster, it undergoes strong gravitational lensing, producing multiple copies of the original signal.
Eungwang Seo, Xikai Shan, Justin Janquart, Otto Hannuksela, Martin Hendry, Bin Hu   +5 more
doaj   +1 more source