LBQS 0015+0239: A Binary Quasar with Small Angular Separation
نویسندگان
چکیده
منابع مشابه
LBQS 0103 − 2753 : A 0 . 3 Arcsec Binary Quasar
Imaging and spectroscopy with HST show that LBQS 0103−2753 (V = 17.8, z = 0.848) is a binary quasar with a separation of 0 .3 or 2.3 kpc. This is by far the smallest separation binary quasar reported to date. The two components have very different spectra, including the presence of strong broad absorption lines (BALs) in component A only. The emission-line redshifts, based on the broad high ion...
متن کاملLBQS 1429-0053: a binary quasar rather than a lensed quasar
Very deep ESO/VLT FORS1 and ISAAC images, as well as HST NICMOS2 data are used to infer the nature of the quasar pair LBQS 1429-0053 A and B, either a binary quasar or a doubly-imaged lensed quasar. Direct search of a putative lensing galaxy is unsuccessful down to R=27, J=24, Ks=22.5 and H=22.5. Moreover, no galaxy overdensity close to the quasar pair is found. A weak shear analysis of the FOR...
متن کاملQuasar pairs with arcminute angular separations
We use the Véron-Cetty & Véron (2000) catalog (VV) of 13 213 quasars to investigate their possible physical grouping over angular scales 10′′ ≤ ∆θ ≤ 1000′′. We first estimate the number of quasar pairs that would be expected in VV assuming a random distribution for the quasar positions and taking into account observational selection effects affecting heterogeneous catalogs. We find in VV a stat...
متن کاملar X iv : a st ro - p h / 01 04 23 6 v 1 1 3 A pr 2 00 1 Discovery of a 2 Kpc Binary Quasar 1
LBQS 0103−2753 is a binary quasar with a separation of only 0.3 arcsec. The projected spacing of 2.3 kpc at the distance of the source (z = 0.848) is much smaller than that of any other known binary QSO. The binary nature is demonstrated by the very different spectra of the two components and the low probability of a chance pairing. LBQS 0103−2753 presumably is a galaxy merger with a small phys...
متن کاملAn FeLoBAL Binary Quasar
In an ongoing infrared imaging survey of quasars at Keck Observatory, we have discovered that the z = 1.285 quasar SDSS J233646.2-010732.6 comprises two point sources with a separation of 1. 67. Resolved spectra show that one component is a standard quasar with a blue continuum and broad emission lines; the other is a broad absorption line (BAL) quasar, specifically, a BAL QSO with prominent ab...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2002
ISSN: 0004-637X,1538-4357
DOI: 10.1086/341064