Results 21 to 30 of about 2,146,207 (296)
Multifrequency radio observations of SNR J0536-6735 (N 59B) with associated pulsar [PDF]
Serbian Astronomical Journal, 2012 We present a study of new Australian Telescope Compact Array (ATCA) observations of supernova remnant, SNR J0536-6735. This remnant appears to follow a shell morphology with a diameter of D=36x29 pc (with 1 pc uncertainty in each direction ...
Bozzetto L.M. +4 more
doaj +1 more source
Radio continuum emission of the Milky Way and nearby galaxies [PDF]
Symposium - International Astronomical Union, 1985 The radio continuum emission of the Milky Way and nearby galaxies can be decomposed into a central region, a clumpy “thin disk”, concentrated in the spiral arms, and a smooth “thick disk” (or flattened “halo”). The emissivity ratio of the two disks seems to be related to the magnetic field properties: Galaxies with strong radio spiral arms reveal a ...
Rainer Beck, Wolfgang Reich
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Radio Continuum Emission in Polar Ring Galaxies
The Astronomical Journal, 2004 We have used the Very Large Array aperture synthesis telescope to conduct a radio continuum survey of polar-ring galaxies, at 20cm and 6cm. Forty objects were observed at 20cm with 5" resolution. Twenty (50%) of the program sources were detected at 20cm, down to our 5-sigma limit of 0.5 mJy/beam.
Cox, A. L., Sparke, L. S.
openaire +2 more sources
The Astrophysical Journal, 2023 We present polarization-sensitive images from the Karl G. Jansky Very Large Array (VLA) at 5 GHz of 11 radio-quiet PG quasars. Based on the radio morphology, spectral index, and polarization properties from the VLA study, coupled with the findings of our
Silpa S. +3 more
doaj +1 more source
Observations of Radio Continuum Emission from M 31 [PDF]
Symposium - International Astronomical Union, 1970 Observations of continuum emission from M 31 have been made with the Cambridge One-mile radio telescope (Pooley, 1969). Two observing frequencies were used; maps of the whole of the visible nebula were obtained at 408 MHz, and spectral data for the central region at 1407 MHz.
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Baldwin Effect and Additional BLR Component in AGN with Superluminal Jets
Frontiers in Astronomy and Space Sciences, 2016 We study the Baldwin Effect (BE) in 96 core-jet blazars with optical and ultraviolet spectroscopic data from a radio-loud AGN sample obtained from the MOJAVE 2cm survey.
Víctor Manuel Patiño Álvarez +7 more
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Continuum radio emission from the Magellanic Clouds [PDF]
Symposium - International Astronomical Union, 1964 Before discussing the results of the radio observations of the Magellanic Clouds in detail, it is worth while to briefly review some of our current ideas about radio emission from “normal” galaxies which would be the classification given to the Clouds by radio astronomers.
D. S. Mathewson, J. R. Healey
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Detection of continuum radio emission associated with Geminga [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2011 Abstract A deep Very Large Array observation of the Geminga pulsar field led to the discovery, at a higher than 10σ significance level, of radio emission trailing the neutron star proper motion. This ∼10 arcsec long radio feature, detected with a flux of ∼0.4 mJy at 4.8 GHz, is marginally displaced (2.7 ± 1.8 arcsec) from the pulsar ...
Pellizzoni, A. +4 more
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Evidence for Low-power Radio Jet–ISM Interaction at 10 pc in the Dwarf AGN Host NGC 4395
The Astrophysical Journal, 2023 Black-hole-driven outflows in galaxies hosting active galactic nuclei (AGN) may interact with their interstellar medium (ISM) affecting star formation (SF).
Payel Nandi +12 more
doaj +1 more source
A multi-epoch study of radio continuum emission from massive protostars [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We report the results of the Jansky Very Large Array (JVLA) observation of five massive protostars at 6 and 22.2 GHz. The aim of the study was to compare their current fluxes and positions with previous observations to search for evidence of variability. Most of the observed sources present the morphologies of a thermal core,
Obonyo, WO +4 more
openaire +4 more sources