Results 31 to 40 of about 359,065 (342)

Biermann battery as a source of astrophysical magnetic fields

Open Astronomy, 2021
A large number of galaxies have large-scale magnetic fields which are usually measured by the Faraday rotation of radio waves. Their origin is usually connected with the dynamo mechanism which is based on differential rotation of the interstellar medium ...
Mikhailov Evgeny A., Andreasyan Ruben R.
doaj   +1 more source

Galaxy Halo Masses from Galaxy‐Galaxy Lensing

The Astrophysical Journal, 2001
We present measurements of the extended dark halo profiles of bright early type galaxies at redshifts 0.1 to 0.9 obtained via galaxy-galaxy lensing analysis of images taken at the CFHT using the UH8K CCD mosaic camera. Six half degree fields were observed for a total of 2 hours each in I and V, resulting in catalogs containing ~20 000 galaxies per ...
Wilson, Gillian, Kaiser, Nick, Luppino, Gerard A., Cowie, Lennox L.   +3 more
openaire   +2 more sources

KiDS+VIKING+GAMA: Testing semi-analytic models of galaxy evolution with galaxy–galaxy–galaxy lensing [PDF]

Astronomy & Astrophysics, 2020
Context. Several semi-analytic models (SAMs) try to explain how galaxies form, evolve, and interact inside the dark matter large-scale structure. These SAMs can be tested by comparing their predictions for galaxy–galaxy–galaxy lensing (G3L), which is weak gravitational lensing around galaxy pairs, with observations. Aims.
Linke, L., Simon, P., Schneider, P., Erben, T., Farrow, D.J., Heymans, C., Hildebrandt, H., Hopkins, A.M., Kannawadi Jayaraman, A., Napolitano, N.R., Sifón, C., Wright, A.H.   +11 more
openaire   +4 more sources

Galaxy harassment and the evolution of clusters of galaxies [PDF]

Nature, 1996
Disturbed spiral galaxies with high rates of star formation pervaded clusters of galaxies just a few billion years ago, but nearby clusters exclude spirals in favor of ellipticals. ``Galaxy harassment" (frequent high speed galaxy encounters) drives the morphological transformation of galaxies in clusters, provides fuel for quasars in subluminous hosts ...
Moore, Ben, Katz, Neal, Lake, George, Dressler, Alan, Oemler, Augustus   +4 more
openaire   +2 more sources

INVESTIGATION OF THE UNIVERSE BY THE LOW-FREQUENCY RADIO ASTRONOMY METHODS IN UKRAINE (According to the report on the XI All-Ukrainian Festival of Science of 18 May 2017, Kyiv) [PDF]

Radio Physics and Radio Astronomy, 2018
Purpose: overview of the main results of half a century activities of Ukraine (with emphasis on the last decade) in the field of decameter radio astronomy, presenting a number of astrophysical discoveries in the study of the Solar system, Galaxy and ...
A. A. Konovalenko
doaj   +1 more source

INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]

The Astrophysical Journal, 2009
We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Park, Changbom, Hwang, Ho Seong
openaire   +2 more sources

galaxy-tourbuilder

, 2017
<p>This Galaxy Tour Builder web extension allows you to easily create new interactive tours for the Galaxy framework. You can record and replay any tour, update its content and preview your changes in live.
Durand, William, Batut, Bérénice, Batut, Bérénice (5270416), Maupetit, Julien (5524340), Durand, William (5524337), Maupetit, Julien   +5 more
core   +3 more sources

Galaxy And Mass Assembly (GAMA) : galaxy close pairs, mergers and the future fate of stellar mass [PDF]

, 2014
ASGR acknowledges STFC and SUPA funding that were used to do this work. GAMA is funded by the STFC (UK), the ARC (Australia), the AAO and the participating institutions.We use a highly complete subset of the Galaxy And Mass Assembly II (GAMA-II) redshift
De Propris, R., De Propis, R., T McNaught-Roberts (16161611), Pimbblet, K. A., A Moffett (7731959), Driver, S. P., M S Owers (16161563), Lara-Lopez, M. A., A M Hopkins (16143587), Lopez-Sanchez, Angel R., B W Holwerda (16219943), Jonathan Loveday (4460899), Owers, M. S., R De Propris (16161587), Obreschkow, D., Holwerda, Benne W., M Cluver (16191152), Baldry, I. K., J Bland-Hawthorn (16111139), Davies, L. J. M., Bauer, A. E., E N Taylor (16143620), Brown, M. J. I., A S G Robotham (16143614), M A Lara-Lopez (16161575), A E Bauer (16161566), Hopkins, A. M., E van Kampen (16112642), Brough, S., Loveday, J., McNaught-Roberts, T., I K Baldry (16072595), Moffett, A., Liske, J., Wilkins, S. M., P Norberg (16143575), Holwerda, B. W., Mahajan, S., L S Kelvin (16143602), K Pimbblet (16191149), Penny, S. J., Robotham, A. S. G., van Kampen, E., M Prescott (10000280), M J Drinkwater (16091732), Bland-Hawthorn, J., N K Agius (16219940), Agius, N. K., Prescott, M., M J I Brown (16143632), Cluver, M., Drinkwater, M. J., S J Penny (16219955), Taylor, E. N., Stephen Wilkins (4461910), Lopez-Sanchez, A. R., D Obreschkow (16219952), S Brough (16143590), S Mahajan (16219949), L J M Davies (16219937), Norberg, P., J Liske (7814738), Kelvin, L. S., Pimbblet, K., S P Driver (16143581), A R López-Sánchez (16219946)   +65 more
core   +1 more source

Lensing by galaxy haloes in clusters of galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 1997
17 pages, LaTeX file, MNRAS in ...
Natarajan, Priyamvada, Kneib, Jean-Paul
openaire   +2 more sources

A Heuristic Evaluation of Partitioning Techniques Considering Early-Type Galaxy Databases

Engineering Proceedings, 2023
Galaxies are one of the most interesting and complex astronomical objects statistically due to their continuous diversification caused mainly due to incidents such as accretion, action, or mergers. Multivariate studies are one of the most useful tools to
Prithwish Ghosh, Shinjon Chakraborty
doaj   +1 more source