Influence of Star Formation on Large Scale Structures of Galactic Magnetic Fields

2018 ◽  
Vol 73 (4) ◽  
pp. 425-429 ◽  
Author(s):  
E. A. Mikhailov ◽  
V. V. Pushkarev
Keyword(s):  
Star Formation ◽  
Magnetic Fields ◽  
Large Scale ◽  
Galactic Magnetic Fields ◽  
Large Scale Structures ◽  
Scale Structures

scholarly journals Star formation activities of galaxies in the large-scale structures atz = 1.2

2009 ◽  
Vol 507 (2) ◽  
pp. 671-682 ◽  
Author(s):  
M. Tanaka ◽  
C. Lidman ◽  
R. G. Bower ◽  
R. Demarco ◽  
A. Finoguenov ◽  
...  
Keyword(s):  
Star Formation ◽  
Large Scale ◽  
Large Scale Structures ◽  
Scale Structures

scholarly journals Abell 1763 and its Cluster Feeding Filament: Constraints on the Intra-filament Medium

2010 ◽  
Vol 6 (S277) ◽  
pp. 309-312
Author(s):  
Louise O. V. Edwards ◽  
Dario Fadda
Keyword(s):  
Star Formation ◽  
Radio Source ◽  
Large Scale ◽  
Theoretical Models ◽  
Observational Constraints ◽  
Cosmological Simulations ◽  
Large Scale Structures ◽  
Scale Structures ◽  
Intermediate Density

AbstractGalaxies are found to inhabit a variety of environments. They are often found in pairs, groups, or clusters. Cosmological simulations predict that these clusters are connected on a larger scale by filaments, but because these large scale structures are so vast, and because they are of intermediate density, observational constraints on their properties are difficult to achieve. We find a large-scale filament in the Abell 1763-Abell 1770 superstructure, determine that the star-formation therein is enhanced, and uncover a bent double lobe radio source midway across the filament. From the bend of this AGN'a jets, we probe the density of the surrounding intra-filament medium (IFM), constrained to be between 1-20x10−29 gm/cm3. This density is consistent with direct probes of the IFM as well as theoretical models.

scholarly journals Large-scale Structures in the CANDELS Fields: The Role of the Environment in Star Formation Activity

2020 ◽  
Vol 890 (1) ◽  
pp. 7 ◽  
Author(s):  
Nima Chartab ◽  
Bahram Mobasher ◽  
Behnam Darvish ◽  
Steve Finkelstein ◽  
Yicheng Guo ◽  
...  
Keyword(s):  
Star Formation ◽  
Large Scale ◽  
Large Scale Structures ◽  
Star Formation Activity ◽  
Scale Structures

Some comments about observations and image processing of comet 29P/Schwassmann-Wachmann 1

1999 ◽  
Vol 173 ◽  
pp. 243-248
Author(s):  
D. Kubáček ◽  
A. Galád ◽  
A. Pravda
Keyword(s):  
Image Processing ◽  
Large Scale ◽  
Harvard College ◽  
Oak Ridge ◽  
Large Scale Structures ◽  
Short Period Comet ◽  
Short Period ◽  
Scale Structures ◽  
Harvard College Observatory ◽  
Period Comet

AbstractUnusual short-period comet 29P/Schwassmann-Wachmann 1 inspired many observers to explain its unpredictable outbursts. In this paper large scale structures and features from the inner part of the coma in time periods around outbursts are studied. CCD images were taken at Whipple Observatory, Mt. Hopkins, in 1989 and at Astronomical Observatory, Modra, from 1995 to 1998. Photographic plates of the comet were taken at Harvard College Observatory, Oak Ridge, from 1974 to 1982. The latter were digitized at first to apply the same techniques of image processing for optimizing the visibility of features in the coma during outbursts. Outbursts and coma structures show various shapes.

scholarly journals The organization and control of an evolving interdependent population

2015 ◽  
Vol 12 (108) ◽  
pp. 20150044 ◽  
Author(s):  
Dervis C. Vural ◽  
Alexander Isakov ◽  
L. Mahadevan
Keyword(s):  
Evolutionary Game Theory ◽  
Large Scale ◽  
Social Evolution ◽  
Evolutionary Game ◽  
Large Scale Structures ◽  
External Perturbations ◽  
Emergence Of Cooperation ◽  
Scale Structures ◽  
And Control ◽  
Evolutionarily Stable

Starting with Darwin, biologists have asked how populations evolve from a low fitness state that is evolutionarily stable to a high fitness state that is not. Specifically of interest is the emergence of cooperation and multicellularity where the fitness of individuals often appears in conflict with that of the population. Theories of social evolution and evolutionary game theory have produced a number of fruitful results employing two-state two-body frameworks. In this study, we depart from this tradition and instead consider a multi-player, multi-state evolutionary game, in which the fitness of an agent is determined by its relationship to an arbitrary number of other agents. We show that populations organize themselves in one of four distinct phases of interdependence depending on one parameter, selection strength. Some of these phases involve the formation of specialized large-scale structures. We then describe how the evolution of independence can be manipulated through various external perturbations.

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