The Most Powerful Lenses in the Universe: Quasar Microlensing as a Probe of the Lensing Galaxy

Pooley, David; Anguita, Timo; Bhatiani, Saloni; Chartas, George; Cornachione, Matthew; Dai, Xinyu; Fian, Carina; Mediavilla, Evencio; Morgan, Christopher; Moustakas, Leonidas A.; Mukherjee, Sampath; O'Dowd, Matthew J.; Rojas, Karina; Sluse, Dominique; Vernardos, Georgios; Webster, Rachel
Bibliographical reference

Astro2020: Decadal Survey on Astronomy and Astrophysics, science white papers, no. 411; Bulletin of the American Astronomical Society, Vol. 51, Issue 3, id. 411 (2019)

Advertised on:
5
2019
Number of authors
16
IAC number of authors
2
Citations
0
Refereed citations
0
Description
We describe how quasar microlensing is the only way to determine the dark/stellar ratio at the interesting sub-galactic scales of several kpc and how it is the only way to measure the stellar M/L outside the solar neighborhood. Both can be done as a function of redshift, and this requires sub-arcsecond X-ray imaging of LSST-discovered lenses.