Results 121 to 130 of about 256,920 (281)

Influence of major mergers on the radio emission of elliptical galaxies

, 2012
We investigate the influence of major mergers on the radio emission of elliptical galaxies. We use a complete sample of close pairs, which contains 475 merging and 1828 non-merging paired elliptical galaxies of ...
Altschuler, Auriemma, Barton, Becker, Best, Best, Brown, Calvani, Condon, Condon, Feretti, Giuricin, González Delgado, Govoni, Heckman, Heckman, Heckman, Hummel, Hummel, J. L. Han, Keel, Kocevski, L. G. Hou, Lambas, McCarthy, Ramos Almeida, Robaina, Sanders, Schawinski, Schawinski, Stocke, Tadhunter, Tal, Wen, White, Wilkinson, Y. H. Wen, Z. L. Wen   +37 more
core   +1 more source

Starburst radio galaxies: general properties, evolutionary histories and triggering [PDF]

, 2010
In this paper we discuss the results of a programme of spectral synthesis modelling of a sample of starburst radio galaxies in the context of scenarios for the triggering of the activity and the evolution of the host galaxies.
Almeida, C. Ramos, Delgado, R. Gonzalez, Emonts, B., Holt, J., Inskip, K., Morganti, R., Tadhunter, C., Villar-Martin, M., Zaurin, J. Rodriguez   +8 more
core   +3 more sources

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler, Robert A. E. Fosbury, David Hazlerigg, Christopher Hogg   +3 more
wiley   +1 more source

The Intrinsic Sizes of Odd Radio Circles

The Astrophysical Journal
A new class of sources, the so-called odd radio circles (ORCs), have been discovered by recent sensitive, large-area radio continuum surveys. The distances of these sources have so far relied on photometric redshifts of optical galaxies found at the ...
David S. N. Rupke, Alison L. Coil, Kelly E. Whalen, John Moustakas, Christy A. Tremonti, Serena Perrotta   +5 more
doaj   +1 more source

Quantifying angular clustering in wide-area radio surveys [PDF]

, 2002
We quantify the angular clustering of radio galaxies in the NVSS and FIRST radio surveys using the two-point correlation function and the moments of counts-in-cells - both important points of comparison with theory.
Blake, Chris, Wall, Jasper
core   +2 more sources

From cities to refuges for pollinators: Urban practices for enhancing pollinator habitats in changing landscapes

Journal of Applied Ecology, EarlyView.
A framework for the support of pollinators in urban areas is developed here, based on five pillars: nesting, flower resources, artificial support, management and society acceptance, with additional key elements from science and society. Society should incorporate strategies for pollinators as in this framework by means of co‐planning with stakeholders,
Rosa Ranalli, Sara Borghesan, Massimo Labra, Paolo Biella   +3 more
wiley   +1 more source

The radio background: radio-loud galaxies at high and low redshifts [PDF]

arXiv, 1993
The majority of this paper is devoted to discrete radio sources, and their consequences for cosmology. Three main issues are considered: (i) what makes a galaxy radio loud?; (ii) what do we know about how the population of radio-loud galaxies has changed with epoch?; and (iii) what can observations of high-redshift radio galaxies tell us about general ...
arxiv  

Morphology and Surface Brightness Evolution of z\sim1.1 Radio Galaxies

, 1997
We use $K-band imaging to investigate the angular size and morphology of 10 6C radio galaxies, at redshifts $1\leq z\leq 1.4$. Two appear to be undergoing mergers, another contains two intensity peaks aligned with the radio jets, while the other seven ...
Eales, Stephen, Rawlings, Steve, Roche, Nathan   +2 more
core   +1 more source

Review of asteroid, meteor, and meteorite‐type links

Meteoritics &Planetary Science, EarlyView.
Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens, Hadrien A. R. Devillepoix   +1 more
wiley   +1 more source

Redshifts for a Sample of Radio-Selected Poor Clusters [PDF]

, 2002
Multifiber optical spectroscopy has been performed on galaxies in the vicinity of strong, nearby radio galaxies. These radio galaxies were selected from the 3CR and B2 catalogs based on their exclusion from the Abell catalog, which is puzzling given the hypothesis that an external medium is required to confine the radio plasma of such galaxies ...
arxiv   +1 more source