Results 51 to 60 of about 2,405 (218)

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar   +3 more
wiley   +1 more source

The relationship between Gas and Galaxies [PDF]

open access: yes, 2009
We have investigated the 2D 2-point correlation function, ƐAG, between low column density Lya absorbers and galaxies at a redshift z ~ 1 for the first time.
Shone, Allen Maurice
core  

Coordinated Velocity Shift of Multiple C iv and Si iv Broad Absorption Lines in Quasar SDSS J113048.45+225206.6

open access: yesThe Astrophysical Journal
We present an analysis of the coordinated velocity shifts observed in multiple C iv and Si iv broad absorption lines (BALs) in the quasar SDSS J113048.45+225206.6.
Wei-Jian Lu, Ying-Ru Lin
doaj   +1 more source

The Fraction and Kinematics of Broad Absorption Line Quasars across Cosmic Time

open access: yesThe Astrophysical Journal, 2023
Luminous quasars are powerful targets to investigate the role of feedback from supermassive black holes (BHs) in regulating the growth phases of BHs themselves and of their host galaxies, up to the highest redshifts.
Manuela Bischetti   +19 more
doaj   +1 more source

Quasar outflow energetics from broad absorption line variability

open access: yes, 2017
© 2017 The Author(s). Quasar outflows have long been recognized as potential contributors to the co-evolution between supermassive black holes (SMBHs) and their host galaxies.
F W Hamann   +9 more
core   +1 more source

Asian Pacific Association of Gastroenterology (APAGE) Clinical Practice Guidelines on the Use of Small Molecules and IL‐23 p19 Inhibitors in Ulcerative Colitis and Crohn's Disease

open access: yesJournal of Gastroenterology and Hepatology, EarlyView.
ABSTRACT Ulcerative colitis (UC) and Crohn's disease (CD) are increasingly prevalent in the Asia Pacific region, necessitating updated, region‐specific guidance on advanced therapies. Targeted small molecule agents, such as filgotinib, tofacitinib, upadacitinib, etrasimod, and ozanimod; and the IL‐23 p19 inhibitors (guselkumab, mirikizumab ...
Choon Jin Ooi   +34 more
wiley   +1 more source

Quantifying the Physics and Energetics of Iron Low-Ionization Broad Absorption-Line Quasar Outflows [PDF]

open access: yes, 2022
Quasars are among the most luminous and massive objects in the universe. They host an actively accreting supermassive black hole (SMBH) at their centre that can power energetic phenomena that outshine the host galaxy.
Choi, Hyunseop
core  

Acceleration of C iv and Si iv Broad Absorption Lines in Quasar SDSS J140058.79+260619.4

open access: yesThe Astronomical Journal
We report the discovery of a velocity shift signature in the C iv and Si iv broad absorption lines (BALs) of the quasar SDSS J140058.79+260619.4 ( z _em  = 2.351). From its two-epoch spectra, we find two BAL systems (systems A and B) in C iv and/or Si iv
Ying-Ru Lin, Wei-Jian Lu
doaj   +1 more source

Using the Properties of Broad Absorption Line Quasars to Illuminate Quasar Structure [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
A key to understanding quasar unification paradigms is the emission properties of broad absorption line quasars (BALQs). The fact that only a small fraction of quasar spectra exhibit deep absorption troughs blueward of the broad permitted emission lines provides a crucial clue to the structure of quasar emitting regions. To learn whether it is possible
Yong, Suk Yee   +5 more
openaire   +2 more sources

Minimalist Footwear Acutely Alters Running Kinematics in Runners With Medial Tibial Stress Syndrome

open access: yesArthroscopy, Sports Medicine, and Rehabilitation, Volume 8, Issue 3, June 2026.
Purpose To assess immediate biomechanical changes in runners with medial tibial stress syndrome (MTSS) when transitioning from standard to minimalist running shoes. Methods Active runners diagnosed with MTSS ran on a treadmill at 10 km/h using standard and minimalist running shoes. Hip, knee, and ankle joint kinematics were captured using a 16‐infrared‐
Quyet Thang Nguyen   +6 more
wiley   +1 more source

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