Results 271 to 280 of about 6,380,044 (283)

Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

open access: yes
Fujimoto S   +45 more
europepmc   +1 more source

ERGA-BGE Reference Genome ofGluvia dorsalis: An Endemic Sun Spider from Iberian Arid Regions

open access: yes
Lozano-Fernandez J   +14 more
europepmc   +1 more source

Radio Galaxies and Their Environment [PDF]

open access: possible, 2002
In this paper we review the properties of radio galaxies in connection to the effect of the dynamic gaseous environment inside clusters in which they are embedded. The external gas can interact with a radio source in different ways: modifying its morphology via ram-pressure, confining the radio lobes, possibly feeding the active nucleus, enhancing star
Tiziana Venturi, Luigina Feretti
openaire   +2 more sources

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

Nature, 2020
Fast radio bursts (FRBs) are brief, bright, extragalactic radio flashes1,2. Their physical origin remains unknown, but dozens of possible models have been postulated3. Some FRB sources exhibit repeat bursts4–7.
B. Marcote   +59 more
semanticscholar   +1 more source

Disk galaxies and their environment

Astronomische Nachrichten, 2009
AbstractEnvironments of disk‐dominated galaxies and simple disk systems‐compared to systems with bulges‐provide a means to explore how environment relates to galaxy morphology. Our approach focuses on systems with edge‐on disks where disk‐to‐bulge ratios and disk flattening can be unambiguously determined and focuses on simple disks as evolutionary ...
Kautsch, Stefan   +2 more
openaire   +3 more sources

Seyfert Galaxies And Their Environment

Symposium - International Astronomical Union, 1999
The role played by environment on nuclear activity in galaxies is not clear and largely debated (see e.g. Barnes & Hernquist 1992, Kelm 1996). To overcome statistical uncertainties, environment properties of two large samples of Seyfert galaxies (Sy 1 and Sy 2 have been kept separated) have been computed and compared with equivalent size “normal ...
Paola Focardi, B. Kelm, G. G. C. Palumbo
openaire   +2 more sources

Markarian galaxies and their environment [PDF]

open access: possibleAstronomy Letters, 2011
The relationship between the characteristics of Markarian galaxies (MGs) and those of galaxy groups is studied. The list that we have compiled by a physically justified method is used as galaxy groups. The following results have been obtained. (1) The frequency of occurrence of MGs in rich groups is lower than that in poor groups and single galaxies ...
A. P. Mahtessian   +2 more
openaire   +1 more source

Galaxies and Their Environments

Publications of the Astronomical Society of the Pacific, 1995
Four questions are asked related to galaxies and their environments in the context of speculation as to which direction the field may go over the next decade. These are: What is a galaxy? Where does a galaxy end? Are galaxies open or closed? and How important are interactions?
openaire   +2 more sources

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