Results 41 to 50 of about 20,094 (246)
The Million Quasars (Milliquas) Catalogue, v8
The Open Journal of Astrophysics, 2023 Announcing the final release, v8, of the Milliquas (Million Quasars) quasar catalogue which presents all published quasars to 30 June 2023, including quasars from the first releases of the Dark Energy Spectroscopic Instrument (DESI) and the SDSS-DR18 ...
Eric Wim Flesch
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Symposium - International Astronomical Union, 1983 The evidence for the evolution of the intergalactic clouds that produce the Lyman-alpha absorption lines in the spectra of QSOs is reviewed. The recent detection of OVI in clouds that produce both Lyman-alpha and Lyman-beta absorption lines is discussed.
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The Astrophysical Journal, 2023 Cosmological models and their parameters are widely debated, especially about whether the current discrepancy between the values of the Hubble constant, H _0 , obtained by Type Ia supernovae (SNe Ia) and the Planck data from the cosmic microwave ...
Maria Giovanna Dainotti +7 more
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The Circumgalactic Medium of Submillimeter Galaxies. II. Unobscured QSOs within Dusty Starbursts and QSO Sightlines with Impact Parameters below 100 Kiloparsec [PDF]
, 2017 We present Atacama Large Millimeter/submillimeter Array (ALMA) 870um observations of 29 bright Herschel sources near high-redshift QSOs. The observations confirm that 20 of the Herschel sources are submillimeter-bright galaxies (SMGs) and identify 16 new
Casey, Caitlin M. +6 more
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X-ray Spectroscopy of QSOs with Broad Ultraviolet Absorption Lines [PDF]
, 2001 For the population of QSOs with broad ultraviolet absorption lines, we are just beginning to accumulate X-ray observations with enough counts for spectral analysis at CCD resolution. From a sample of eight QSOs [including four Broad Absorption Line (BAL)
Bade N. +5 more
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Extensions around z = 2 QSOs [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 uuencoded compressed postscript.
Aretxaga, I. +2 more
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A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly
The Astrophysical Journal, 2023 We present the discovery of a gravitationally lensed dust-reddened QSO at z = 2.517, identified in a survey for QSOs by infrared selection. Hubble Space Telescope imaging reveals a quadruply lensed system in a cusp configuration, with a maximum image ...
Eilat Glikman +14 more
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Is there a connection between Broad Absorption Line Quasars and Narrow Line Seyfert 1 galaxies?
, 2014 We consider whether Broad Absorption Line Quasars (BAL QSOs) and Narrow Line Seyfert 1 galaxies (NLS1s) are similar, as suggested by Brandt & Gallagher (2000) and Boroson (2002).
Grupe, Dirk, Nousek, John A.
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The Astronomical Journal, 1996 19 pages including 4 tables, 6 figures; AASTEX 4.0. To appear in the August 1996 Astronomical Journal. Complete details of the VLA FIRST survey can be found at http://sundog.stsci.edu/
Gregg, Michael D. +5 more
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CLEAR: High-ionization [Ne v] λ3426 Emission-line Galaxies at 1.4 < z < 2.3
The Astrophysical Journal, 2023 We analyze a sample of 25 [Ne v ] ( λ 3426) emission-line galaxies at 1.4 < z < 2.3 using Hubble Space Telescope/Wide Field Camera 3 G102 and G141 grism observations from the CANDELS Ly α Emission at Reionization (CLEAR) survey.
Nikko J. Cleri +15 more
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