Spectroscopy and polarimetry of the gravitationally lensed quasar SDSS J1004+4112 with the 6m SAO RAS telescope

L. Č. Popović , V. Afanasiev , A. Moiseev , A. Smirnova , S. Simić , Dj. Savić (1) , E. Mediavilla , C. Fian

1 ObAS - Observatoire astronomique de Strasbourg

Context. We present new spectroscopic and polarimetric observations of the gravitational lens SDSS J1004+4112 taken with the 6 m telescope of the Special Astrophysical Observatory (Russia). Aims. In order to explain the variability that is observed only in the blue wing of the C IV emission line, corresponding to image A, we analyze the spectroscopy and polarimetry of the four images of the lensed system.

Keywords: strong -quasars; individual; SDSS J1004+4112 -line; profiles -polarization; gravitational lensing

Domains: Sciences of the Universe [physics]

L. Č. Popović, V. Afanasiev, A. Moiseev, A. Smirnova, S. Simić, et al.. Spectroscopy and polarimetry of the gravitationally lensed quasar SDSS J1004+4112 with the 6m SAO RAS telescope. Astronomy and Astrophysics - A&A, 2020, 634, pp.A27. ⟨10.1051/0004-6361/201936088⟩. ⟨hal-03158975⟩