20 citations · 20 across the 2 of their papers we have counts for
2 papers
astro-ph.GA2023
Andromeda's Parachute: Time Delays and Hubble Constant
Vyacheslav N. Shalyapin, Luis J. Goicoechea, Karianne Dyrland +1
The gravitational lens system PS J0147+4630 (Andromeda's Parachute) consists of four quasar images ABCD and a lensing galaxy. We obtained -band light curves of ABCD in the 2017$…
astro-ph.GA2017★ 20 cited
Doubly imaged quasar SDSS J1515+1511: time delay and lensing galaxies
Vyacheslav N. Shalyapin, Luis J. Goicoechea
We analyse new optical observations of the gravitational lens system SDSS J1515+1511. These include a 2.6-year photometric monitoring with the Liverpool Telescope (LT) in the b…