Results 1 to 10 of about 83,902 (197)

On the integrated continuum radio spectrum of supernova remnant W44 (G34.7-0.4): New insights from Planck [PDF]

open access: yesSerbian Astronomical Journal, 2015
In this paper, the integrated continuum radio spectrum of supernova remnant (SNR) W44 was analyzed up to 70 GHz, testing the different emission models that can be responsible for its particular shape.
Onić D.
doaj   +4 more sources

The influence of the cluster environment on the large-scale radio continuum emission of 8 Virgo cluster spirals [PDF]

open access: yesAstronomy and Astrophysics, 2010
The influence of the environment on the polarized and total power radio continuum emission of cluster spiral galaxies is investigated. We present deep scaled array VLA 20 and 6 cm observations including polarization of 8 Virgo spiral galaxies. These data
B Vollmer, M Soida, M Urbanik
exaly   +4 more sources

Detection of continuum radio emission associated with Geminga [PDF]

open access: yesMonthly 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 ...
A Pellizzoni, F Govoni, P Esposito
exaly   +3 more sources

Radio continuum emission from a tidal dwarf galaxy

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT Tidal dwarf galaxies (TDGs) form in the debris of galaxy mergers, making them ideal testbeds for investigating star formation in an extreme environment. We present radio continuum EVLA observations spanning 1–2 GHz of the interacting system Arp 94, which contains the TDG J1023+1952.
Blanca M Moncada-Cuadri   +2 more
exaly   +4 more sources

An Ionized Outflow in Orion-KL Source I?

open access: yesThe Astrophysical Journal, 2023
We present images at 6 and 14 GHz of Source I (SrcI) in the Kleinmann–Low Nebula in Orion. At higher frequencies, from 43 to 340 GHz, images of this source are dominated by thermal emission from dust in a 100 au diameter circumstellar disk, but at 6 and ...
Melvyn Wright   +7 more
doaj   +1 more source

Radio Continuum Emission from the Magellanic Clouds [PDF]

open access: yesSymposium - International Astronomical Union, 1991
New radio continuum surveys of the Large and the Small Magellanic Cloud have been completed recently at four frequencies, using the Parkes 64-m telescope. Here we shall discuss briefly the overall radio morphology of the Clouds at different frequencies and discuss the detected linear polarization.
U. Klein   +10 more
openaire   +1 more source

H i 21 cm Extended Structures to the Northeast and Southwest of NGC 5595: VLA Observations of the Disk Galaxy Pair NGC 5595 and NGC 5597

open access: yesThe Astronomical Journal, 2023
We report VLA B-configuration observations of the H i 21 cm line on the close disk galaxy pair NGC 5595 and NGC 5597. At the angular resolution of the observations, ∼7.″1 × 4.″2, while most of the H i 21 cm in NGC 5595 and NGC 5597 has the same extent as
J. Antonio Garcia-Barreto   +1 more
doaj   +1 more source

First Detection of Radio Emission Associated with a Classical Cepheid

open access: yesThe Astronomical Journal, 2023
We report the detection of 15 GHz radio continuum emission associated with the classical Cepheid variable star δ Cephei ( δ Cep) based on observations with the Karl G. Jansky Very Large Array.
L. D. Matthews, N. R. Evans, M. P. Rupen
doaj   +1 more source

Multifrequency radio observations of SNR J0536-6735 (N 59B) with associated pulsar [PDF]

open access: yesSerbian 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]

open access: yesSymposium - 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
openaire   +1 more source

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