Results 241 to 250 of about 744 (267)

Stellar content of the interacting galaxies of the M51 system

Astronomy Letters, 2009
Based on archival Hubble Space Telescope ACS/WFC images, we have performed stellar photometry for more than 0.6 million stars in the interacting galaxies NGC 5194 and NGC 5195 of the M51 system. Stars of various ages have been identified on the constructed Hertzsprung-Russell diagram: blue and red supergiants, AGB stars, and red giants. The distance to
N. A. Tikhonov, O. A. Galazutdinova, E. N. Tikhonov   +2 more
openaire   +1 more source

The Stellar Content of Early-Type Galaxies in Dense Environments

1989
We present evidence, based on an analysis of the integrated spectra of cluster and field galaxies, that the stellar content of early-type galaxies in the cores of rich clusters is different from that of early-type galaxies in low-density environments. Specifically, the large intermediate-age stellar populations inferred to exist in ellipticals in low ...
J. Rose, R. M. Sharples, R. S. Ellis, R. G. Bower   +3 more
openaire   +1 more source

A repeating fast radio burst source localized to a nearby spiral galaxy

Nature, 2020
Benito Marcote, Kenzie Nimmo, Jason Hessels   +2 more
exaly  

The Evolving Stellar Content of Galaxies and the X-Ray Evolution of Elliptical Galaxies

1990
Some of the several roles played by the evolving stellar component of galaxies are introduced, and the ultimate root of many observational correlations among global galaxy properties is indicated in the current stellar death rate. As a concrete example, the case of the stellar mass loss in elliptical galaxies is examined in detail. The material lost by
openaire   +1 more source

A magnified compact galaxy at redshift 9.51 with strong nebular emission lines

Science, 2023
, Patrick L Kelly, Wenlei Chen
exaly  

The nature of an ultra-faint galaxy in the cosmic dark ages seen with JWST

Nature, 2023
Guido Roberts-Borsani, Wenlei Chen, Eros Vanzella   +2 more
exaly  

Evidence for neutrino emission from the nearby active galaxy NGC 1068

Science, 2022
exaly  

A single fast radio burst localized to a massive galaxy at cosmological distance

Science, 2019
Keith Bannister, A T Deller, Chris J Phillips   +2 more
exaly  

The Galaxy in Context: Structural, Kinematic, and Integrated Properties

Annual Review of Astronomy and Astrophysics, 2016
Joss Bland-Hawthorn, Ortwin Gerhard
exaly  

Physical Models of Galaxy Formation in a Cosmological Framework

Annual Review of Astronomy and Astrophysics, 2015
Romeel Dave
exaly