Results 61 to 70 of about 52,299 (245)

A New Empirical Model for the Structural Analysis of Early-type Galaxies and a Critical Review of the Nuker Model

, 2003
The Nuker law was designed to match the inner few (~3-10) arcseconds of predominantly nearby (< 30 Mpc) early-type galaxy light-profiles; it was never intended to describe an entire profile.
A. Asensio Ramos, Alister W. Graham, Andredakis Y. C., Binggeli B., Caon N., Caon N., D'Onofrio M., Davies J. I., de Vaucouleurs G., I. Trujillo, James P. A., Marquez I., Peter Erwin, Young C. K., Zhao H., Zhao H.   +15 more
core   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

Deep Underground Science and Engineering, EarlyView.
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

Line-of-sight velocity distributions of elliptical galaxies from collisionless mergers [PDF]

, 2006
We analyse the skewness of the line-of-sight velocity distributions in model elliptical galaxies built through collisionless galaxy mergers. We build the models using large N-body simulations of mergers between either two spiral or two elliptical ...
Balcells, M., Gonzalez-Garcia, A. C., Olshevsky, V. S.   +2 more
core   +3 more sources

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

Journal of Research in Science Teaching, EarlyView.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson, Anne‐Marie Cederqvist   +1 more
wiley   +1 more source

Minor Merger Growth in Action: JWST Detects Faint Blue Companions around Massive Quiescent Galaxies at 0.5 ≤ z ≤ 3.0

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, Christina C. Williams, Brant Robertson, Zhiyuan Ji, Benjamin D. Johnson, Erica Nelson, Stacey Alberts, Kevin Hainline, Francesco D’Eugenio, Hannah Übler, Marcia Rieke, George Rieke, Andrew J. Bunker, Stefano Carniani, Stephane Charlot, Daniel J. Eisenstein, Roberto Maiolino, Daniel P. Stark, Sandro Tacchella, Chris Willott   +19 more
doaj   +1 more source

Elliptical Galaxies with Emission Lines from the Sloan Digital Sky Survey

, 2005
We present the results of 11 elliptical galaxies with strong nebular emission lines during our study of star formation history along the Hubble sequence. After removing the dilution from the underlying old stellar populations by use of stellar population
Barger A J, Blanton, Couch W J, de Freitas Pacheco J A, de Souza RE, de Vaucouleurs G, de Vaucouleurs G, Fukugita M, Gonzalez Delgado R, Gonzalez Delgado R, Graham A W, Gu Q, Gunn J E, Guzman R, Ho L, Huang J, Kauffmann G, Larson R B, Lei Shi, Maza J, Moshir M, Qiu-He Peng, Qiu-Sheng Gu, Sanders D B, Schmitt H R, Shi L, Terlevich R, Tremaine S, Tremaine S, White S D M, Wu H, Xin-Lian Luo, Ying-He Zhao, Zhi-Xin Peng, Zou Z   +34 more
core   +1 more source

A Systematic Review of Alternative Host Species of Phytophthora erythroseptica, the Major Causal Agent of Pink Rot of Potato

Plant Pathology, Volume 74, Issue 3, Page 605-640, April 2025.
The literature cites many alternative hosts of Phytophthora erythroseptica. However, evidence of host status is often insufficient, thus a polyphasic approach (morphological, molecular, histological and pathogenicity) is required. ABSTRACT Most published studies of Phytophthora erythroseptica, the major causal agent of pink rot of potato, have focused ...
Ronika Thapa, Warwick Gill, Robert S. Tegg, Audrey E. Leo, Calum R. Wilson   +4 more
wiley   +1 more source

Triaxiality in elliptical galaxies

Monthly Notices of the Royal Astronomical Society, 1980
A simple geometrical model of elliptical galaxies having shells with different axial ratios c/a, b/a has been produced to interpret three fundamental key-features of elliptical galaxies: (1) the distribution of the maximum flattening observed; (2) the percentage of ellipticals showing twisting; and (3) the correlation between maximum twisting and ...
BENACCHIO L., GALLETTA, GIUSEPPE
openaire   +3 more sources

Galaxy Classification Using EWGC

Universe
The 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, Zhiren Pan, Jianwei Zhou, Bo Qiu, A-Li Luo, Chong Luo, Xiaodong Luan   +6 more
doaj   +1 more source

A Photometric Study of Giant Ellipticals and Their Stellar Halos With VST

Galaxies, 2017
Observations of diffuse starlight in the outskirts of galaxies are thought to be a fundamental source of constraints on the cosmological context of galaxy assembly in the Λ CDM model.
Marilena Spavone, Massimo Capaccioli, Nicola R. Napolitano, Enrichetta Iodice, Aniello Grado, Luca Limatola, Andrew P. Cooper, Michele Cantiello, Duncan A. Forbes, Maurizio Paolillo, Pietro Schipani   +10 more
doaj   +1 more source