Results 31 to 40 of about 54,429 (269)

The Origin of Star Formation in Early-type Galaxies Inferred from Spatially Resolved Spectroscopy

The Astrophysical Journal, 2023
We investigate the origin of star formation activity in early-type galaxies with current star formation using spatially resolved spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory in the Sloan Digital Sky Survey (SDSS).
Yun Hee Lee, Ho Seong Hwang, Narae Hwang, Jong Chul Lee, Ki-Beom Kim   +4 more
doaj   +1 more source

The orientation of galaxy pairs with filamentary structures: dependence on morphology

, 2018
Aims. With the aim of performing an analysis of the orientations of galaxy pair systems with respect to the underlying large-scale structure, we study the alignment between the axis connecting the pair galaxies and the host cosmic filament where the pair
Alonso, Sol, Coldwell, Georgina, Duplancic, Fernanda, Jofré, M. Rosa Muñoz, Lambas, Diego G., Mesa, Valeria   +5 more
core   +1 more source

Minor Mergers Are Not Enough: The Importance of Major Mergers during Brightest Cluster Galaxy Assembly

The Astrophysical Journal Supplement Series, 2023
We investigate the roles of major and minor mergers during brightest cluster galaxy (BCG) assembly using surface brightness profiles, line indices, and fundamental plane relations.
Matthias Kluge, Ralf Bender
doaj   +1 more source

From Vision to Instrument: Creating a Next-Generation Event Horizon Telescope for a New Era of Black Hole Science

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, Sheperd S. Doeleman, José L. Gómez, Avery E. Broderick   +3 more
doaj   +1 more source

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

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

Dwarf elliptical galaxies

The Astrophysical Journal, 1983
We propose that dwarf elliptical galaxies are the bound remnants of more massive stellar systems, such as a parent galaxy which has lost more than half its mass in gas ejection during a burst of star formation, or an unbound tidal debris produced during the interaction of two giant galaxies.
H. Gerola, P. Carnevali, E. E. Salpeter
openaire   +1 more source

Lopsidedness of cluster galaxies in modified gravity

, 2010
We point out an interesting theoretical prediction for elliptical galaxies residing inside galaxy clusters in the framework of modified Newtonian dynamics (MOND), that could be used to test this paradigm.
A. Knebe, Benoit Famaey, C. Llinares, F. Combes, F. Donato ., G. Gentile, G.W. Angus, H. Zhao, HongSheng Zhao, L. Ciotti, P. Londrillo, P.J.E. Peebles, S.S. McGaugh, Xufen Wu   +13 more
core   +2 more sources

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

Advanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das, Ushasi Pramanik, Elise M. Brown, Chih‐Yun Liu, Huan Gong, Jonathan Fascetti, Mark Gibson, Samuel Stealey, Silviya P. Zustiak, Cory Berkland, Piyoosh Sharma, Meredith E. Jackrel, Mark A. White, Jai S. Rudra   +13 more
wiley   +1 more source

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