Sneaky pete baryons in gravitational lensing
Gravitational lensing “shines light” on dark matter and allows us to find them effectively. But baryons may also disguise as false dark matter signal.
(Image Credit: ESA/Hubble & NASA)
Gravitational lensing “shines light” on dark matter and allows us to find them effectively. But baryons may also disguise as false dark matter signal.
(Image Credit: ESA/Hubble & NASA)
Today’s paper constrains cosmological parameters from one of the largest ground-based astrophysical surveys ever undertaken – DES. An insight into their first-year’s data analysis, released in August 2017.
The discovery of a bright, dusty galaxy at high redshift and what it might tell us about similar galaxies at that distance.
Do wobbling galaxies at the center of galaxy clusters indicate interactions between dark matter particles?
So far, Gravitational Lensing has allowed us to observe distant faint galaxies or supernovae. Its time to observe individual stars now.
Featuring a galaxy in the wrong place at the wrong time.