Results 31 to 40 of about 677 (118)

The Proper Motion of Strongly Lensed Binary Neutron Star Mergers in LIGO/Virgo/Kagra Can Be Constrained by Measuring Doppler-induced Gravitational-wave Dephasing

The Astrophysical Journal
Strongly lensed binary neutron star (NS–NS) mergers are expected to be observed once LIGO/Virgo/Kagra reaches the planned A+ or proposed A# sensitivity. We demonstrate that the relative transverse velocity of the source-lens system can be constrained by ...
Lorenz Zwick, Johan Samsing
doaj   +1 more source

COOL-LAMPS. VI. Lens Model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens

The Astrophysical Journal
We present a strong lensing analysis of COOL J1241+2219, the brightest known gravitationally lensed galaxy at z ≥ 5, based on new multiband Hubble Space Telescope (HST) imaging data. The lensed galaxy has a redshift of z = 5.043, placing it shortly after
Maxwell Klein, Keren Sharon, Kate Napier, Michael D. Gladders, Gourav Khullar, Matthew Bayliss, Håkon Dahle, M. Riley Owens, Antony Stark, Sasha Brownsberger, Keunho J. Kim, Nicole Kuchta, Guillaume Mahler, Grace Smith, Ryan Walker, Katya Gozman, Michael N. Martinez, Owen S. Matthews Acuña, Kaiya Merz, Jorge A. Sanchez, Daniel J. Kavin Stein, Ezra O. Sukay, Kiyan Tavangar   +22 more
doaj   +1 more source

High-resolution ALMA Imaging for a Gravitationally Lensed Quasar at z = 6.5: Constraining the Active Galactic Nucleus Contribution to Galactic-scale Dust Heating

The Astrophysical Journal Letters
We present high-resolution (beam size $0\mathop{.}\limits{^{\prime\prime} }076\times 0\mathop{.}\limits{^{\prime\prime} }040$ ) Atacama Large Millimeter/submillimeter Array observations of the far-infrared ( λ _rest  = 162.7 μ m) dust continuum of J0439 ...
Minghao Yue, Xiaohui Fan, Anna-Christina Eilers, Jinyi Yang, Feige Wang, Jianwei Lyu, James W. Nightingale, Ann Zabludoff, Ran Wang   +8 more
doaj   +1 more source

A New Framework for Understanding Systematic Errors in Cluster Lens Modeling. IV. Constraints from the Giant Arc in Abell 370

The Astrophysical Journal
We aim to improve cluster lens modeling and source reconstruction by utilizing the full information in giant, caustic-crossing arcs lensed by galaxy clusters.
Lana Eid, Charles R. Keeton
doaj   +1 more source

Precision Measurement of Large Shear Signals

The Astrophysical Journal Letters
So far, estimators of galaxy shape distortions are only carefully studied perturbatively in the case of small shear signals, mainly for weak-lensing science.
Jiarui Sun, Jun Zhang, Li Cui, Alessandro Sonnenfeld, Xin Wang   +4 more
doaj   +1 more source

A deconstruction of methods to derive one-point lensing statistics

The Open Journal of Astrophysics
Gravitational lensing is a crucial tool for exploring cosmic phenomena, providing insights into galaxy clustering, dark matter, and dark energy. Given the substantial computational demands of $N$-body simulations, approximate methods like $\texttt ...
Viviane Alfradique, Tiago Castro, Valerio Marra, Miguel Quartin, Carlo Giocoli, Pierluigi Monaco   +5 more
doaj   +1 more source

LSST Strong Lensing Systems Dark Matter Sensitivity Analysis with Neural Ratio Estimators

The Astrophysical Journal
Strong gravitational lensing offers a unique probe of dark matter (DM) on subgalactic scales, where the abundance and distribution of low-mass halos are highly sensitive to the underlying properties of DM particles.
Andreas Filipp, Yashar Hezaveh, Laurence Perreault-Levasseur, Daniel Gilman, LSST Dark Energy Science Collaboration   +4 more
doaj   +1 more source

A Lens Finder Map to Check Claimed High-z Galaxies behind SMACS J0723.3-7327

The Astrophysical Journal
The first science image released by the James Webb Space Telescope (JWST) reveals numerous galaxies in the distant background of the galaxy cluster SMACS J0723.3-7327.
Alex Chow, Sung Kei Li, Jeremy Lim, Tom Broadhurst, Man Cheung Alex Li, James Nianias, Jake Summers, Rogier Windhorst   +7 more
doaj   +1 more source

HOLISMOKES

Astronomy & Astrophysics
Strong gravitationally lensed supernovae (LSNe), though rare, are exceptionally valuable probes for cosmology and astrophysics. Upcoming time-domain surveys such as the Vera Rubin Observatory’s Legacy Survey of Space and Time (LSST) offer a major ...
Bag Satadru, Cañameras Raoul, Suyu Sherry H., Schuldt Stefan, Taubenberger Stefan, Andika Irham Taufik, Melo Alejandra   +6 more
doaj   +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