Results 61 to 70 of about 111,241 (293)
Discovery of the First Low-luminosity Quasar at z > 7 [PDF]
Astrophysical Journal, 2019 We report the discovery of a quasar at z = 7.07, which was selected from the deep multi-band imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey.
Y. Matsuoka +47 more
semanticscholar +1 more source
Publications of the Astronomical Society of Australia, 2001 AbstractMicrolens-induced variability in multiple quasars can be used to study two cosmological issues of great interest, the size and brightness profile of quasars on one hand, and the distribution of compact (dark) matter along the line of sight on the other. Here a summary is given of recent theoretical progress as well as observational evidence for
openaire +5 more sources
On Quasar Masses and Quasar Host Galaxies [PDF]
The Astrophysical Journal, 1998 Accepted for publication in ApJ Letters, 7 pages, aas2pp4 ...
openaire +3 more sources
Construction Tender Subcontract Selection using Case-based Reasoning
Construction Economics and Building, 2012 Obtaining competitive quotations from suitably qualified subcontractors at tender tim n significantly increase the chance of w1nmng a construction project.
Due Luu, Wily Sher
doaj +3 more sources
Model simulation of heavy metals in river systems: case study the Negro river basin
Revista Facultad de Ingeniería Universidad de Antioquia, 2019 Este trabajo describe la aplicación de un modelo de calidad de agua para la simulación de metales pesados en sistemas fluviales. La estrategia propuesta incluye un enfoque de modelación 1D con la extensión del modelo QUASAR-ADZ para la representación del
Carlos Alberto Palacio-Tobón +3 more
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The Sloan Digital Sky Survey Quasar Catalog: Fourteenth data release [PDF]
, 2017 OCEVU Labex by the "Investissements d'Avenir" French government [ANR-11-LABX-0060]; A*MIDEX project by the "Investissements d'Avenir" French government [ANR-11-IDEX-0001-02]; Agence Nationale de la Recherche [ANR-16-CE31-0021]; Leverhulme Trust Early ...
I. Pâris +44 more
semanticscholar +1 more source
Quasar-galaxy associations [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 uuencoded Postscript file (including figures and tables), SUSSEX-AST 94/8 ...
Thomas, P. A. +2 more
openaire +6 more sources
What We Talk about When We Talk about Blazars?
Frontiers in Astronomy and Space Sciences, 2017 After the discovery of powerful relativistic jets from Narrow-Line Seyfert 1 Galaxies, and the understanding of their similarity with those of blazars, a problem of terminology was born.
Luigi Foschini
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Cosmology With Quasars: Predictions for eROSITA From a Quasar Hubble Diagram
Frontiers in Astronomy and Space Sciences, 2020 The effort for understanding the matter and energy content of the Universe and its evolution relies on different probes, such as cosmic background radiation, cluster lensing, supernovae.
Elisabeta Lusso, Elisabeta Lusso
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Predicting the Yields of z > 6.5 Quasar Surveys in the Era of Roman and Rubin
The Astrophysical Journal, 2023 About 70 luminous quasars discovered at z > 6.5 are strongly biased toward the bright end, thus not providing a comprehensive view of quasar abundance beyond the cosmic dawn. We present the predicted results of the Roman/Rubin high-redshift quasar survey,
Wei Leong Tee +5 more
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