Sentences with phrase «strong gravitational lenses»
Using the techniques of strong and weak gravitational lensing on archival data obtained from the Hubble Space Telescope, we determine that the average mass overdensity profile of the lenses can be fit wi... ▽ More We measure the average mass properties of a sample of 41 strong gravitational lenses at moderate redshift (z ~ 0.4 - 0.9), and present the lens redshift for 6 of these galaxies for the first time.
https://arxiv.org/
Abstract: We measure the average mass properties of a sample of 41 strong gravitational lenses at moderate redshift (z ~ 0.4 - 0.9), and present the lens redshift for 6 of these galaxies for the first time.
The European Space Agency's Euclid satellite, due for launch in 2020, will set astronomers a huge challenge: to analyse one hundred thousand strong gravitational lenses.
Strong gravitational lenses built by massive clusters are powerful tools.
They find that a spinning naked singularity turns out to be a strong gravitational lens, magnifying the light from background stars more than an ordinary black hole and producing a distinctive pattern of images.
«AutoLens has demonstrated its capabilities with this stunning image of a strong gravitational lens system captured by the Hubble Space Telescope,» said Nightingale, who developed AutoLens together with his colleague, Dr Simon Dye.
Images Hubble Space Telescope imaging of the strong gravitational lens ER -0047-2808.
Not exact matches
An image taken with the Hubble Space Telescope of Abell 1689, a massive cluster of galaxies whose gravitational pull is so strong that it bends light, acting like a lens.
Occasionally, when the stars are aligned just right, this warping of the fabric of the universe results in a phenomenon known as gravitational lensing, wherein the strong gravitational field of a foreground object acts as a lens that «bends» light from an object in the background and allows scientists to catch a glimpse of what might otherwise have remained invisible.
These cosmic lenses are created by massive structures like galaxies and galaxy clusters, which deflect the light from objects behind them due to their strong gravity — an effect, called gravitational lensing.
We thank Matthias Tecza, Stuart Lynn, Kelly Borden, Laura Whyte, Brooke Simmons, David Hogg, Daniel Foreman - Mackey, Thomas Jennings, Layne Wright, Cecile Faure, Jonathan Coles, Stuart Lowe, Alexander Fritz and Jean - Paul Kneib for many useful conversations about citizen science and gravitational lens detection, and for helping guide the discussion at Space Warps Talk, and to the Dark Energy Survey and Pan-STARRS strong lensing science teams for their suggestions and encouragement.