Results 71 to 80 of about 10,420 (207)

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

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

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

Systematic KMTNet Planetary Anomaly Search. IX. Complete Sample of 2016 Prime-field Planets

The Astronomical Journal, 2023
As a part of the “Systematic KMTNet Planetary Anomaly Search” series, we report five new planets (namely, OGLE-2016-BLG-1635Lb, MOA-2016-BLG-532Lb, KMT-2016-BLG-0625Lb, OGLE-2016-BLG-1850Lb, and KMT-2016-BLG-1751Lb) and one planet candidate (KMT-2016-BLG-
In-Gu Shin, Jennifer C. Yee, Weicheng Zang, Hongjing Yang, Kyu-Ha Hwang, Cheongho Han, Andrew Gould, Andrzej Udalski, Ian A. Bond, Leading authors, Michael D. Albrow, Sun-Ju Chung, Youn Kil Jung, Yoon-Hyun Ryu, Yossi Shvartzvald, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, The KMTNet Collaboration, Przemek Mróz, Michał K. Szymański, Jan Skowron, Radosław Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof A. Rybicki, Patryk Iwanek, Krzysztof Ulaczyk, Marcin Wrona, Mariusz Gromadzki, The OGLE Collaboration, Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Hirosane Fujii, Akihiko Fukui, Ryusei Hamada, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Mio Tomoyoshi, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, Kansuke Yamashita, the MOA Collaboration   +64 more
doaj   +1 more source

GRAVITATIONAL MICROLENSING IN THE LOCAL GROUP [PDF]

Annual Review of Astronomy and Astrophysics, 1996
▪ Abstract  The status of searches for gravitational microlensing events of the stars in our galaxy and in other galaxies of the Local Group, the interpretation of the results, some theory, and prospects for the future are reviewed. The searches have already unveiled ∼ 100 events, at least two of them caused by binaries, and have already proven to be ...
openaire   +2 more sources

The influence of gravitational lensing on the spectra of lensed QSOs

, 2004
We consider the influence of (milli/micro)lensing on the spectra of lensed QSOs. We propose a method for the observational detection of microlensing in the spectra of lensed QSOs and apply it to the spectra of the three lensed QSOs (PG 1115+080, QSO 1413+
Abajas, Barkana, Bechtold, Chartas, Chartas, Chartas, Chelouche, Claeskens, Dai, Dolan, Fabian, G. Chartas, Howarth, Hutchings, Impey, Kaspi, Krolik, L. Č. Popović, Laor, Lewis, Lewis, Mediavilla, Metcalf, Michalitsianos, Monier, Narayan, Nemiroff, Oshima, Peterson, Popović, Popović, Popović, Richards, Schechter, Schneider, Schneider, Tanaka, Wambsganss, Wambsganss, Wandel, Wisotzki, Wucknitz, Zakharov   +42 more
core   +1 more source

Estimating Microlensing Parameters from Observables and Stellar Isochrones with pyLIMASS

The Astronomical Journal
We present pyLIMASS, a novel algorithm for estimating the physical properties of the lensing system in microlensing events. The main idea of pyLIMASS is to combine all available information regarding the microlensing event, defined as observables , and ...
E. Bachelet, M. Hundertmark, S. Calchi Novati   +2 more
doaj   +1 more source

Gravitational microlensing of  -ray blazars [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
We present a detailed study of the effects of gravitational microlensing on compact and distant γ-ray blazars. These objects have γ-ray-emitting regions that are small enough to be affected by microlensing effects produced by stars lying in intermediate galaxies.
D. F. Torres, G. E. Romero, E. F. Eiroa, J. Wambsganss, M. E. Pessah   +4 more
openaire   +1 more source

New VR magnification ratios of QSO 0957+561

, 2004
We present VR magnification ratios of QSO 0957+561, which are inferred from the GLITP light curves of Q0957+561A and new frames taken with the 2.56m Nordic Optical Telescope about 14 months after the GLITP monitoring.
A. Oscoz, A. Ullan, E. Mediavilla, Garrett M. A., J. A. Munoz, J. Gonzalez‐Cadelo, L. J. Goicoechea, M. Serra‐Ricart, Pelt J., R. Gil‐Merino, Refsdal S., Schmidt R., Wambsganss J.   +12 more
core   +1 more source

Gravitational Microlensing

, 2006
This review forms the microlensing part of the 33rd Saas-Fee Advanced Course "Gravitational Lensing: Strong, Weak & Micro'', which was held in April 2003 in Les Diablerets. It contains an introduction to the lensing effects of single and binary stars and it summarizes the state-of-the-art of microlensing observations and prospects at the time of ...
openaire   +2 more sources