Results 81 to 90 of about 709,246 (279)
Solvent‐Guided Chiral Assemblies and Chemical Doping of OEG‐Functionalized Conjugated Polymers
Advanced Materials, Volume 38, Issue 45, 13 August 2026.Solvent‐dependent aggregation pathways dictate whether conjugated polymers form chiral lyotropic liquid‐crystalline assemblies or achiral packed aggregates. Mapping solvent‐controlled β₁ and β2 states reveals that weaker backbone association favors β₁ aggregates and reorganizable twisted mesophases, whereas stronger backbone association favors β2 ...
Sanghyun Jeon +10 more
wiley +1 more source
Kinematics of diffuse elliptical galaxies
Astrophysics and Space Science, 2003 To be published in "The Evolution of Galaxies. III. From Simple Approaches to Self-Consistent Models", G.
Prugniel, Philippe, Simien, Francois
openaire +2 more sources
Constraining dark energy using real and mock galaxy surveys [PDF]
, 2009 In this thesis, we study how dark energy may be constrained by measurements of large-scale clustering in future galaxy surveys, and through the imprint of a time-varying large-scale potential on the CMB (the integrated Sachs-Wolfe effect).
CAI, YANCHUAN
core
Hot Gas Structure in the Elliptical Galaxy NGC 4472 [PDF]
, 2004 We present X-ray spectroscopic and morphological analyses using Chandra ACIS and ROSAT observations of the giant elliptical galaxy NGC 4472 in the Virgo Cluster. We discuss previously unobserved X-ray structures within the extended galactic corona.
B. Biller +4 more
semanticscholar +1 more source
The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory
Astronomische Nachrichten, Volume 347, Issue 7, August 2026.ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth +20 more
wiley +1 more source
Structure and Dynamics of Elliptical Galaxies
Annual Review of Astronomy and Astrophysics, 1991 The equilibrium models, observations and formation processes of elliptical galaxies are reviewed.
Zeeuw, P.T. de, Franx, M.
openaire +3 more sources
Galaxy Classification Using EWGC
UniverseThe Enhanced Wide-field Galaxy Classification Network (EWGC) is a novel architecture designed to classify spiral and elliptical galaxies using Wide-field Infrared Survey Explorer (WISE) images.
Yunyan Nie +6 more
doaj +1 more source
Two-component mass models of the lensing galaxy in the quadruply imaged supernova iPTF16geu
The Open Journal of Astrophysics, 2020 The first resolved, multiply imaged supernova Type Ia, iPTF16geu, was observed 4 years ago, five decades after such systems were first envisioned. Because of the unique properties of the source, these systems hold a lot of promise for the study of galaxy
Liliya L.R. Williams, David Zegeye
doaj +1 more source
Galaxies, 2023 In April 2019, the Event Horizon Telescope (EHT) Collaboration successfully imaged a supermassive black hole (SMBH) for the first time, revealing the apparent “shadow” cast by the dark compact object M87* in the center of the elliptical galaxy Virgo A [..
Michael D. Johnson +3 more
doaj +1 more source
Chandra X-Ray Observations of the X-Ray Faint Elliptical Galaxy NGC 4697 [PDF]
, 2001 A Chandra ACIS S3 observation of the X-ray faint elliptical galaxy NGC 4697 resolves much of the X-ray emission (61% of the counts from within one effective radius) into 90 point sources, of which ~80 are low-mass X-ray binaries (LMXBs) associated with ...
C. Sarazin, J. Irwin, J. Bregman
semanticscholar +1 more source