Results 191 to 200 of about 2,094,644 (376)

Interacting and Merging Galaxies

, 1996
I will present a review of some of the many recent developments within the exciting and rapidly evolving field of Interacting and Merging Galaxies. I will touch both on observations and on theory, focussing on those aspects where galaxy evolution modelling may possibly contribute to our understanding.
openaire   +2 more sources

Taxon‐specific BLAST percent identity thresholds for identification of unknown sequences using metabarcoding

Methods in Ecology and Evolution, EarlyView.
Abstract The identification of organisms in environmental samples using metabarcoding relies on factors such as taxonomic assignment methods, genetic markers, reference databases and confidence thresholds for taxonomic assignment. Because lineages evolve at different rates, a global threshold (e.g.
Paula Pappalardo, Jan M. Hemmi, Ryuji J. Machida, Matthieu Leray, Allen G. Collins, Karen J. Osborn   +5 more
wiley   +1 more source

Soft X-ray properties of a spectroscopically selected sample of interacting and isolated Seyfert galaxies [PDF]

, 2001
Frank E. Pfefferkorn, Thomas Böller, P. Rafanelli   +2 more
openalex   +1 more source

Introducing the Condor Array Telescope. VI. Discovery of Extensive Ionized Gaseous Filaments of the Cosmic Web in the Direction of the M81 Group

The Astrophysical Journal
We used the Condor Array Telescope to obtain deep imaging observations through luminance broadband and He ii , [O iii ], He i , H α , [N ii ], and [S ii ] narrowband filters of an extended region of the M81 Group spanning ≈8 × 8 deg ^2 on the sky ...
Kenneth M. Lanzetta, Stefan Gromoll, Michael M. Shara, David Valls-Gabaud, Frederick M. Walter, John K. Webb   +5 more
doaj   +1 more source

Interaction of Galaxies with the ICM

, 2003
In recent years a wealth of data and detailed hydrodynamical simulations have appeared that show the effects of interactions between the ICM and galaxies. Single dish observations show that cluster galaxies are deficient in their HI content out to 2 Abell radii. The deficient galaxies tend to be on radial orbits.
openaire   +2 more sources

Has Politics Become More Professional? Career and Legislative Professionalisation in the Australian Parliament Since 1950

Australian Journal of Politics &History, EarlyView.
“Professional politicians” have been lamented for their perceived negative impact on representative democracy. However, the concept of “political professionalisation” is deployed inconsistently, making these claims difficult to assess. This article develops a framework to measure professionalisation across two dimensions: career professionalisation ...
Peter Ferguson, Amy Nethery, Zim Nwokora, Andrew Young   +3 more
wiley   +1 more source

Numerical simulations of interacting disk galaxies [PDF]

Galaxy-galaxy interactions have long attracted many extragalactic astronomers in various aspects. A number of computer simulations performed in the 1970s have successfully reproduced the peculiar morphologies observed in interacting disk galaxies and ...
Noguchi, Masafumi
core   +1 more source

Global properties of interacting disk-type galaxies

, 1987
H. Bushouse
openalex   +1 more source

H i observations of interacting galaxy pair NGC 4038/9 [PDF]

, 2001
Scott D. Gordon, B. Koribalski, Keith Jones   +2 more
openalex   +1 more source

Introducing the Condor Array Telescope. V. Deep Broad- and Narrowband Imaging Observations of the M81 Group

The Astrophysical Journal Supplement Series
We used the Condor Array Telescope to obtain deep imaging observations through the luminance broadband and He ii 468.6 nm, [O iii ] 500.7 nm, He i 587.5 nm, H α , [N ii ] 658.4 nm, and [S ii ] 671.6 nm narrowband filters of an extended region comprising ...
Kenneth M. Lanzetta, Stefan Gromoll, Michael M. Shara, David Valls-Gabaud, Frederick M. Walter, John K. Webb   +5 more
doaj   +1 more source