Results 81 to 90 of about 134,801 (246)

The simplicity of physical laws

Noûs, EarlyView.
Abstract Physical laws are strikingly simple, yet there is no a priori reason for them to be so. I propose that nomic realists—Humeans and non‐Humeans—should recognize simplicity as a fundamental epistemic guide for discovering and evaluating candidate physical laws.
Eddy Keming Chen
wiley   +1 more source

3C459: A highly asymmetric radio galaxy with a starburst

, 2003
Multifrequency radio observations of the radio galaxy 3C459 using MERLIN, VLA and the EVN, and an optical HST image using the F702W filter are presented.
Baade, Baars, Barthel, Bremer, Bridle, Carvalho, Conway, Crawford, D. J. Saikia, Dallacasa, Davis, de Koff, de Vries, Eracleous, Fanti, Farrah, Garrington, Haslam, Heckman, Heckman, Hernquist, Ishwara-Chandra, Ishwara-Chandra, Krause, Krause, Laing, Liu, Mantovani, McCarthy, Miller, Morganti, Morganti, O'Dea, O'Dea, Owen, P. Thomasson, Pedelty, Quinn, Saikia, Saikia, Saikia, Saikia, Saikia, Schilizzi, Simard-Normandin, Spinrad, T. W. B. Muxlow, Tadhunter, Thomasson, Toomre, Ulvestad, Yee   +51 more
core   +2 more sources

Lessons from the void: What Boltzmann brains teach

Analytic Philosophy, EarlyView.
Abstract Some physical theories predict that almost all brains in the universe are Boltzmann brains, that is, short‐lived disembodied brains that are accidentally assembled as a result of thermodynamic or quantum fluctuations. Physicists and philosophers of physics widely regard this proliferation as unacceptable, and so take its prediction as a basis ...
Bradford Saad
wiley   +1 more source

B3 0003+387: AGN Marked Large-Scale Structure at z=1.47?

, 2000
We present evidence for a significant overdensity of red galaxies, as much as a factor of 14 over comparable field samples, in the field of the z=1.47 radio galaxy B3 0003+387. The colors and luminosities of the brightest red galaxies are consistent with
Aragon-Salamanca A., B. T. Soifer, Bower R. G., Bower R. G., Casali M. M., Cimatti A., D. Thompson, Ficarra A., Hasinger G., O. Aftreth, Sanchez S. F.   +10 more
core   +1 more source

CHANG-ES VI: Probing Supernova Energy Deposition in Spiral Galaxies Through Multi-Wavelength Relationships [PDF]

, 2015
How a galaxy regulates its SNe energy into different interstellar/circumgalactic medium components strongly affects galaxy evolution. Based on the JVLA D-configuration C- (6 GHz) and L-band (1.6 GHz) continuum observations, we perform statistical ...
Beck, Rainer, Dettmar, Ralf-Jurgen, Heald, George, Irwin, Judith, Johnson, Megan, Kepley, Amanda A., Krause, Marita, Li, Jiang-Tao, Murphy, E. J., Orlando, Elena, Rand, Richard J., Strong, A. W., Vargas, Carlos J., Walterbos, Rene, Wang, Q. Daniel, Wiegert, Theresa   +15 more
core   +2 more sources

Nonparametric inference for Poisson‐Laguerre tessellations

Scandinavian Journal of Statistics, EarlyView.
Abstract In this paper, we consider statistical inference for Poisson‐Laguerre tessellations in ℝd$$ {\mathbb{R}}^d $$. The object of interest is a distribution function F$$ F $$ which describes the distribution of the arrival times of the generator points.
Thomas van der Jagt, Geurt Jongbloed, Martina Vittorietti   +2 more
wiley   +1 more source

Identification of 4876 Bent-tail Radio Galaxies in the FIRST Survey Using Deep Learning Combined with Visual Inspection

The Astrophysical Journal Supplement Series
Bent-tail radio galaxies (BTRGs) are characterized by bent radio lobes. This unique shape is mainly caused by the movement of the galaxy within a cluster, during which the radio jets are deflected by the intracluster medium.
Baoqiang Lao, Heinz Andernach, Xiaolong Yang, Xiang Zhang, Rushuang Zhao, Zhen Zhao, Yun Yu, Xiaohui Sun, Sheng-Li Qin   +8 more
doaj   +1 more source

The environments of the radio galaxy population in simba. [PDF]

Mon Not R Astron Soc, 2022
Thomas N, Davé R.
europepmc   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

Experimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source

A KAT-7 view of a low-mass sample of galaxy clusters

, 2016
Radio observations over the last two decades have provided evidence that diffuse synchrotron emission in the form of megaparsec-scale radio halos in galaxy clusters is likely tracing regions of the intracluster medium where relativistic particles are ...
Bernardi, G., Brunetti, G., Cassano, R., Cuciti, V., Dallacasa, D., Johnston-Hollitt, M., Oozeer, N., Smirnov, O. M., Venturi, T.   +8 more
core   +1 more source