Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-09-12
Astron.J.131:41-48,2006
Astronomy and Astrophysics
Astrophysics
26 pages, 8 figures. Accepted for publication in AJ
Scientific paper
10.1086/497965
We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) dataset. We have confirmed that SDSS J102111.02+491330.4 is a previously unknown gravitationally lensed quasar. This lens system exhibits two images of a $z = 1.72$ quasar, with an image separation of $1{\farcs}14 \pm 0.04$. Optical and near-IR imaging of the system reveals the presence of the lensing galaxy between the two quasar images. Observations of SDSS J112012.12+671116.0 indicate that it is more likely a binary quasar than a gravitational lens. This system has two quasars at a redshift of $z = 1.49$, with an angular separation of $1{\farcs}49 \pm 0.02$. However, the two quasars have markedly different SEDs and no lens galaxy is apparent in optical and near-IR images of this system. We also present a list of 31 SDSS lens candidates which follow-up observations have confirmed are \textit{not} gravitational lenses.
Jr.
Barentine John C.
Becker Robert H.
Brasi Guido
Brewington Howard J.
No associations
LandOfFree
SDSSJ102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with SDSSJ102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SDSSJ102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-2207