Guide to arrangements for DTE to DTE physical connection

2015 ◽  
Keyword(s):  
Physical Connection

scholarly journals The CGM and IGM at z ∼ 5: metal budget and physical connection

2018 ◽  
Vol 481 (4) ◽  
pp. 4940-4959 ◽  
Author(s):  
Alex Codoreanu ◽  
Emma V Ryan-Weber ◽  
Luz Ángela García ◽  
Neil H M Crighton ◽  
George Becker ◽  
...  
Keyword(s):  
Physical Connection

scholarly journals Magnetogenesis and the Cosmic Web: A Joint Challenge for Radio Observations and Numerical Simulations

Galaxies ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 109
Author(s):  
Franco Vazza ◽  
Nicola Locatelli ◽  
Kamlesh Rajpurohit ◽  
Serena Banfi ◽  
Paola Domínguez-Fernández ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Radio Signal ◽  
Radio Observations ◽  
Definitive Answer ◽  
Physical Connection ◽  
The Status ◽  
Radio Frequencies

The detection of the radio signal from filaments in the cosmic web is crucial to distinguish possible magnetogenesis scenarios. We review the status of the different attempts to detect the cosmic web at radio wavelengths. This is put into the context of the advanced simulations of cosmic magnetism carried out in the last few years by our MAGCOW project. While first attempts of imaging the cosmic web with the MWA and LOFAR have been encouraging and could discard some magnetogenesis models, the complexity behind such observations makes a definitive answer still uncertain. A combination of total intensity and polarimetric data at low radio frequencies that the SKA and LOFAR2.0 will achieve is key to removing the existing uncertainties related to the contribution of many possible sources of signal along deep lines of sight. This will make it possible to isolate the contribution from filaments, and expose its deep physical connection with the origin of extragalactic magnetism.

scholarly journals Astrophysical properties of binary star clusters in the Small Magellanic Cloud

2009 ◽  
Vol 5 (S266) ◽  
pp. 533-536
Author(s):  
João F. C. Santos ◽  
Alex A. Schmidt ◽  
Eduardo Bica
Keyword(s):  
Star Formation ◽  
Age Differences ◽  
Binary Star ◽  
Star Clusters ◽  
Magellanic Cloud ◽  
Age Difference ◽  
Small Magellanic Cloud ◽  
Density Profiles ◽  
Physical Connection ◽  
Stellar Density

AbstractTo study the evolution of binary star clusters, we have imaged seven systems in the Small Magellanic Cloud with the SOAR 4m telescope using B and V filters. The sample contains pairs with well-separated components (d < 30 pc) as well as systems that apparently have merged, as evidenced by their unusual structures. By employing isochrone fitting to their color–magnitude diagrams, we have determined reddening values, ages and metallicities, and by fitting King models to their radial stellar-density profiles we estimated core radii. Disturbances of the density profiles are interpreted as evidence of interactions. Properties such as the distances between their components and their age differences are addressed in terms of the timescales involved, to assess the physical connection of the system. In two cases, the age difference is more than 50 Myr, which suggests a chance alignment, capture or sequential star formation.

scholarly journals The large number coincidence, the cosmic coincidence and the critical acceleration

2006 ◽  
Vol 462 (2076) ◽  
pp. 3657-3661 ◽  
Author(s):  
Scott Funkhouser
Keyword(s):  
Fine Structure ◽  
Cosmological Constant ◽  
Scaling Laws ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Coincidence Problem ◽  
Critical Acceleration ◽  
Physical Connection ◽  
Cosmic Parameters

The coincidence problem among the pure numbers of order near 10 40 is resolved with the Raychaudhuri and Friedmann–Robertson–Lemaitre–Walker equations and a trivial relationship involving the fine structure constant. The fact that the large number coincidence occurs only in the same epoch in which other coincidences among cosmic parameters occur could be considered a distinct coincidence problem suggesting an underlying physical connection. A natural set of scaling laws for the cosmological constant and the critical acceleration is identified that would resolve the coincidence among cosmic coincidences.

On the physical connection between quasars and neighboring galaxies

Astrophysics ◽  
1998 ◽  
Vol 41 (2) ◽  
pp. 145-149
Author(s):  
R. A. Vardanyan
Keyword(s):  
Physical Connection
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