Results 11 to 20 of about 1,391,040 (211)
First results from high redshift quasar searches in VIKING [PDF]
, 2012 This thesis presents the discovery of the first luminous z & 6.5 quasars in the VISTA kilo-degree Infrared Galaxy Survey (VIKING). After some basic quality control, quasar selection is investigated via use of initial data supplementedwith ...
Findlay, Joseph
core +4 more sources
Microlensing in the double quasar SBS 1520+530 [PDF]
Astronomy & Astrophysics, 2005 6 pages, 7 figures.
Gaynullina, E. R. +9 more
openaire +2 more sources
4C02.27: what is inside a double-double radio quasar? [PDF]
Proceedings of 10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays — PoS(10th EVN Symposium), 2011 4 pages, 2 figures, to appear in the proceedings of the 10th European VLBI Network Symposium (September 20-24, 2010, Manchester, UK).
Frey, S., Paragi, Z.
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The double quasar Q2138 -- 431: lensing by a dark galaxy? [PDF]
Monthly Notices of the Royal Astronomical Society, 1997 We report the discovery of a new gravitational lens candidate Q2138-431AB, comprising two quasar images at a redshift of 1.641 separated by 4.5 arcsecs. The spectra of the two images are very similar, and the redshifts agree to better than 115 km.sec$^{-1}$. The two images have magnitudes $B_J = 19.8$ and $B_J = 21.0$, and in spite of a deep search and
Hawkins, MRS +6 more
openaire +3 more sources
Modelling the Gravitational Lens of the Double Quasar [PDF]
Symposium - International Astronomical Union, 1982 The discovery of the double quasar (Walsh ET AL. 1979) provides an opportunity to study the mass distribution of elliptical galaxies and clusters of galaxies. This has been done initially by Young ET AL. (1981) who produced a model to account for the image positions and intensities. Since then VLBI observations have been made of 0957+561A and B (Porcas
P. K. Moore, S. M. Harding
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Pictor A: A new double-peaked emission-line quasar [PDF]
The Astrophysical Journal, 1995 uu-encoded compressed tar of postscript files.
Sulentic, J. W. +3 more
openaire +2 more sources
Spectroscopic follow-up of double quasar candidates [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 8 pages, 7 figures, 5 tables (full tables 1 and 3-5 are available online in a machine-readable ASCII format at https://grupos.unican.es/glendama/LQLM_results.htm). Accepted for publication in MNRAS (uncorrected version)
Shalyapin, V. N. +3 more
openaire +2 more sources
Modelling accretion disk winds in quasars
, 2014 Outflows are ubiquitous in active galactic nuclei (AGN). They can take the form of either dramatic radio jets, which extend vast distances into the inter-galactic medium, or of much smaller scale winds - whose existence can be inferred only indirectly ...
Nick Higginbottom +1 more
core +2 more sources
Discovery of a quasar with double-peaked broad balmer emission lines
Monthly Notices of the Royal Astronomical Society: Letters, 2022 ABSTRACT Most massive galaxies contain a supermassive black hole (SMBH) at their centre. When galaxies merge, their SMBHs sink to the centre of the new galaxy, where they are thought to eventually merge. During this process, an SMBH binary is formed.
Jacco H Terwel, Peter G Jonker
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Punk rock as popular theatre [PDF]
, 2007 Punk rock performance consciously draws on popular theatre forms like music hall and stand-up comedy, as exemplified by the occasion when Max Wall appeared with Ian Dury at the Hammersmith Odeon.
Double, Oliver
core +1 more source