radio sources
A sample of 669 ultra steep spectrum radio sources to find high redshift radio galaxies
... use radio galaxies to study the formation and evolution of the most massive galaxies, which, by their implied star-formation history, can put important constraints on galaxy formation models, and even on ...
31
The spatial clustering of radio sources in NVSS and FIRST; implications for galaxy clustering evolution
... of radio sources may be undetectable due to the rela- tively broad redshift distribution washing out the signal ...bright radio sources in the ...deep radio sample, allowing them to ...
20
Clustering properties of TGSS radio sources
... of radio sources in the Alternative Data Release 1 of the TIFR GMRT Sky Survey (TGSS), focusing on large angular scales, where previous analyses have detected a large clustering ...000 sources ...
17
Extragalactic megahertz-peaked spectrum radio sources at milliarcsecond scales
... peaked-spectrum radio sources are thought to be the progenitors of larger, radio-loud active galactic nuclei ...spectrum sources from the GaLactic and Extragalactic All-sky Murchison Widefield ...
13
Compact Steep-Spectrum Radio Sources and Ambient Medium Density
... morphologies on radio maps [3]. They have steep high frequency spectrum of spectral index, ) ≥ 0.5+, - ~ . / ; where , - is flux density and is observing frequency). Their spectral turnover is believed to be due ...
6
Cosmic evolution of radio sources in ATLAS
... for radio sources in ATLAS as part of our optical follow-up ...466 radio sources with new spectroscopic redshifts, 142 have star-forming optical spectra, 282 show evidence for AGN in their ...
213
Observations of H I absorbing gas in compact radio sources at cosmological redshifts
... nearby radio sources; for instance, 17 of 19 nearby FRI radio galaxies ob- served with the HST by Verdoes Kleijn et ...nearby radio-loud AGN by van Gorkom et ...their radio galaxy ...
10
Optical emission lines in radio sources of intermediate power
... e radio cores in our sam ple are due to th e in trin sic n a tu re of the core ra th e r th a n due to o rien tatio n an d beam ing ...observed radio power of th e core an d i t ’s sp ectral index to large ...
418
John Bolton and the nature of discrete radio sources
... detect radio emission from the Andromeda (M31) ...emitted radio energy with a strength comparable to our own Galaxy, it should be possible to detect the emission even at this vast extragalactic ...by ...
263
Observability of intermittent radio sources in galaxy groups and clusters
... of radio emission from the radio ...of radio sources was proposed by Manolakou & Kirk (2002), which calculates the first-order Fermi acceleration of the electrons at the termination shock ...
21
Radio Galaxy Zoo: cosmological alignment of radio sources
... extended sources with significant elongation compared to ...of radio galaxy lobes and the sensitivity to extended sources of the GMRT allow TGSS to trace the lobes better than ...uncorrelated ...
11
A study of diffuse radio sources and X-ray emission in six massive clusters
... diffuse radio sources. Out of six, we detect diffuse radio sources in four clusters (67 per cent) while remaining two (33 per cent) are ‘off-state’ ...diffuse radio sources ...
14
Weak and compact radio emission in early high mass star forming regions II The nature of the radio sources
... the sources studied by Sánchez-Monge et ...at radio wavelengths than the ones from our work, with radio luminosities at 5 GHz of ∼ 10 2 – 10 6 mJy kpc 2 versus 10 −2 – 10 mJy kpc 2 in our ...These ...
23
Parsec and sub-parsec-scale structure and evolution in nearby compact radio sources and relationships to emission at other wavelengths
... t radio sources and 7-ray e m issio n 43 atively scarce, apart for a few of the very well studied ...EGRET-identified radio sources only have rudimentary VLBI and VLA images available, which ...
130
GMRT observations of extragalactic radio sources with steeply inverted spectra
... type radio spectrum, unlike J0242−1649 (Figure ...young radio source, with a total extent of only 25 msec ...young radio sources, the observed sharp spectral turnover at metre wavelengths is ...
14
The environments and ages of extragalactic radio sources inferred from multi frequency radio maps
... Appli ation to Cygnus A, 3C 219 and 3C 215 To test the model predi tions for the sour e environment against dire t X-ray observations over a range of dierent viewing angles, the radio da[r] ...
20
Compact structure in southern peaked spectrum radio sources
... The images have a mean dynami range of 65:1 and provide a urate measurements of the detailed stru ture in these sour es, in luding omponent sizes, ux densities and spe tral indi es.. All[r] ...
222
Multi-source self-calibration: Unveiling the microJy population of compact radio sources
... 9 sources in Multi-Source Self- ...represents sources which did not reach the detection threshold of 6σ but their flux densities could be measured, whereas N-D indicated sources that did not reach ...
7
CO(1-0) survey of high-z radio galaxies: alignment of molecular halo gas with distant radio sources
... IR-bright sources. In all three cases, the CO(1–0) is aligned along the radio axis and found beyond the brightest radio hotspot, in a region devoid of ...the radio jet axis. For the eight ...
18
A plethora of diffuse steep spectrum radio sources in Abell 2034 revealed by LOFAR
... In Owers et al. (2014), the dynamics of this cluster were described and we outline the key points here to aid the interpretation of the radio emission associated with the ICM. Abell 2034 is primarily a two body ...
14