Results 51 to 60 of about 20,094 (246)
X-QUEST: A Comprehensive X-ray Study of Local ULIRGs and QSOs
, 2010 We present results from the X-ray portion of a multi-wavelength study of local ULIRGs and QSOs called QUEST (Quasar-ULIRG Evolution STudy). The data consist of new and archival X-ray data on 40 ULIRGs and 26 PG QSOs taken with Chandra and XMM-Newton.
Arnaud +43 more
core +1 more source
The Chandra Source Catalog Normal Galaxy Sample
The Astrophysical Journal Supplement Series, 2023 We present the extensive and well-characterized Chandra X-ray Galaxy Catalog (CGC) of 8547 galaxy candidates in the redshift range z ∼ 0.04–0.7, optical luminosity 10 ^10 –10 ^11 L _r _⊙ , and X-ray luminosity (0.5–7 keV) L _X = 2 × 10 ^40 –2 × 10 ^43 ...
Dong-Woo Kim +6 more
doaj +1 more source
The Continuum Slopes of Optically Selected QSOs [PDF]
, 1996 Quasi-simultaneous optical/near-IR photometry is presented for a sample of 37 luminous optically selected QSOs drawn from the Large Bright QSO Survey. Most of the QSOs have decreased in brightness since discovery; this is expected in flux-limited samples.
Cristiani +2 more
core +3 more sources
QSO Environments at Intermediate Redshifts [PDF]
, 2001 We have made a survey of quasar environments at 0.5 < z < 0.8, using a sample of both radio-loud and radio-quiet quasars matched in B-band luminosity. Our observations include images of background control fields to provide a good determination of the field galaxy counts.
Wold, M. +3 more
openaire +2 more sources
QSO clustering and the AAT 2dF QSO Redshift Survey [PDF]
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1999 Invited talk at RS meeting on 'Large Scale Structure in the Universe' held at the Royal Society on 25-26 March 1998 14 pages, 11 ...
Boyle, B +5 more
openaire +2 more sources
Animal Venoms as Peptide Libraries for the Discovery of Antiglioblastoma Agents
Biochemistry Research International, Volume 2026, Issue 1, 2026.Glioblastoma is one of the most aggressive and widely recognized types of brain tumors, characterized by significant cellular and molecular diversity and an inherently aggressive nature. The treatment remains highly challenging, with limited effectiveness and persistently low survival rates.
Livia Ramos Santiago +6 more
wiley +1 more source
The Astrophysical JournalWe report Atacama Large Millimeter/submillimeter Array and Atacama Compact Array observations of atomic carbon ([C i ](1–0)) and dust continuum in 10 enormous Ly α nebulae hosting ultraluminous Type-I QSOs at z = 2.2–2.5, as part of the Survey of ...
Jianan Li +15 more
doaj +1 more source
A Deep HST H-Band Imaging Survey of Massive Gas-Rich Mergers. II. The QUEST PG QSOs
, 2009 We report the results from a deep HST NICMOS H-band imaging survey of 28 z < 0.3 QSOs from the Palomar-Green (PG) sample. This program is part of QUEST (Quasar / ULIRG Evolution STudy) and complements a similar set of data on 26 highly-nucleated ULIRGs ...
A. Burkert +66 more
core +1 more source
Eddington Accretion and QSO Emission Lines at z ~ 2 [PDF]
, 2003 Broad Absorption Line (BAL) QSOs have been suggested to be youthful super-accretors based on their powerful radiatively driven absorbing outflows and often reddened continua. To test this hypothesis, we observed near IR spectra of the H$\beta$ region for
Beverley J. Wills +5 more
core +2 more sources
Large‐Scale QSO‐Galaxy Correlations for Radio‐loud and Optically Selected QSO Samples [PDF]
The Astrophysical Journal, 1997 18 pages, 8 figures, AASTeX, accepted for publication in ...
Benitez, N., Martinez-Gonzalez, E., IFCA
openaire +3 more sources