Results 91 to 100 of about 94,086 (264)
X-ray Insights Into Interpreting CIV Blueshifts and Optical/UV Continua
, 2004 We present 0.5-8.0 keV Chandra observations of six bright quasars that represent extrema in quasar emission-line properties -- three quasars each with small and large blueshifts of the CIV emission line with respect to the systemic redshift of the ...
Bouchet P. +10 more
core +2 more sources
JGH Open, Volume 10, Issue 4, April 2026.ABSTRACT Ulcerative colitis (UC) is traditionally managed with long‐term 5‐aminosalicylic acid (5‐ASA) administration. However, in real‐world practice, carefully selected low‐risk patients in sustained deep remission may remain stable without continuous therapy.
Tsutomu Nishida +3 more
wiley +1 more source
Comprehensive Connection among the Quasars with Different Types of Outflow Absorption Lines
The Astrophysical JournalIt is commonly accepted that outflows from the central regions of quasars play a substantial role in regulating the global properties of the host galaxy. These outflows are typically detected through blueshifted absorption lines.
Xing-Long Peng +4 more
doaj +1 more source
A Population of Dust-rich Quasars at z ~ 1.5 [PDF]
, 2012 We report Herschel SPIRE (250, 350, and 500 μm) detections of 32 quasars with redshifts 0.5 ≤z < 3.6 from the Herschel Multi-tiered Extragalactic Survey (HerMES).
Bergeron, Jacqueline +21 more
core +3 more sources
Dust emission from quasars and quasar host galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We test emission models of circum-nuclear dust torii around quasars, at low and high redshifts, by using a large collection of photometric data for an unbiased sample of 120 optically-selected objects with millimetric and sub-millimetric fluxes, including new unpublished data.
Andreani, Paola +2 more
openaire +2 more sources
First In Vivo 23Na Human Imaging at 10.5 T Using a Combined Sodium‐Proton Transceiver Body Array
Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2429-2441, April 2026.ABSTRACT Purpose To demonstrate the first in vivo human 23Na MRI at 10.5 T using a novel dual‐tuned transceiver body array and to evaluate a self‐gating approach for respiratory motion compensation, focusing on renal imaging. Methods A custom‐built eight‐channel 23Na‐loop 1H‐dipole transceiver array was designed, constructed, and characterized.
Simon Schmidt +2 more
wiley +1 more source
Narrow [O iii] Emission Lines as a Potential Proxy for the Evolutionary Stage of Quasars
The Astrophysical JournalRadio spectral shape of quasars can provide insight into the ages of quasars. We have compiled data for 1804 quasars with z ≲ 1 from the Sloan Digital Sky Survey (SDSS).
Zhi-fu Chen +3 more
doaj +1 more source
The REQUIEM Survey. I. A Search for Extended Lyα Nebular Emission Around 31 z > 5.7 Quasars [PDF]
Astrophysical Journal, 2019 The discovery of quasars a few hundred megayears after the Big Bang represents a major challenge to our understanding of black holes as well as galaxy formation and evolution.
E. Farina +21 more
semanticscholar +1 more source
Dust-Deficient Palomar-Green Quasars and the Diversity of AGN Intrinsic IR Emission
, 2017 To elucidate the intrinsic broadband infrared (IR) emission properties of active galactic nuclei (AGNs), we analyze the spectral energy distributions (SEDs) of 87 ...
Lyu, Jianwei, Rieke, G. H., Shi, Yong
core +1 more source
Journal of Neurochemistry, Volume 170, Issue 4, April 2026.Restraint stress triggers anxiety, along with a loss of polarization and coverage of aquaporin‐4 (AQP4) in astrocytes of the frontal cortex; these effects are attenuated by blockade of adenosine A2A receptors. ABSTRACT Repeated stress triggers anxiety accompanied by a deregulation of cortical glucocorticoid receptors, which is relieved by blocking ...
Liliana Dias +5 more
wiley +1 more source