Results 111 to 120 of about 514,316 (314)
Diverse Galaxies Lithograph [PDF]
, 2007 This Hubble Space Telescope image shows the diversity of galaxies in the universe. A huge elliptical galaxy, designated ESO 325-G004, dominates the image.
core
Chandra Observation of M84, a Radio Lobe Elliptical Galaxy in the Virgo Cluster [PDF]
, 2000 We analyzed a deep Chandra observation of M84, a bright elliptical galaxy in the core of the Virgo Cluster. We find that the spatial distribution of the soft X-ray emission is defined by the radio structure of the galaxy.
A. Finoguenov, C. Jones
semanticscholar +1 more source
Advanced Science, Volume 12, Issue 34, September 11, 2025.This review spotlights key advances in chiral halide perovskite materials and devices, covering device architectures, fabrication methods, and emerging applications like circularly polarized light functions, neuromorphic computing, and spintronics. It explores structure‐property relationships and chirality transfer mechanisms, discusses challenges in ...
Qi Liu, Hui Ren, Qi Wei, Mingjie Li
wiley +1 more source
UV Visibility of Moderate-Redshift Giant Elliptical Galaxies [PDF]
Journal of Astronomy and Space Sciences, 1998 We show quantitatively whether giant elliptical galaxies would be visible at far UV wavelengths if they were placed at moderate redshift of 0.4-0.5. On the basis of simple cosmological tests, we conclude that giant elliptical galaxies can be detectable ...
Myung-Hyun Rhee +3 more
doaj
The Effect of Superpositions on the Planetary Nebula Luminosity Function
The Astrophysical Journal, 2023 Planetary nebula (PN) surveys in systems beyond ∼10 Mpc often find high-excitation, point-like sources with [O iii ] λ 5007 fluxes greater than the apparent bright-end cutoff of the planetary nebula luminosity function (PNLF).
Owen Chase +3 more
doaj +1 more source
The Planetary Nebula System and Dynamics in the Outer Halo of NGC 5128
, 2003 The halos of elliptical galaxies are faint and difficult to explore, but they contain vital clues to both structure and formation. We present the results of an imaging and spectroscopic survey for planetary nebulae (PNe) in the nearby elliptical NGC 5128.
Bender R. +8 more
core +1 more source
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
A review of multiscale numerical modeling of rock mechanics and rock engineering
Deep Underground Science and Engineering, Volume 4, Issue 3, Page 382-405, September 2025.Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley +1 more source
Can We Discover Physical Models Using Machine Learning? A Case Study of Galaxy Sizes
The Astrophysical JournalWe explore the ability of machine learning methods to discover underlying equations of physics by searching for the equations governing galaxy size in a semianalytic model. This case study allows us to evaluate the process as we know the ground truth. We
Festa Buçinca-Çupallari +4 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 Minor mergers are thought to drive the structural evolution of massive quiescent galaxies; however, existing Hubble Space Telescope (HST) imaging is primarily sensitive to stellar mass ratios ≳1:10.
Katherine A. Suess +19 more
doaj +1 more source