Results 11 to 20 of about 156,542 (187)
Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range [PDF]
The Astrophysical Journal, 2023 We analyze radio continuum emission of early-type galaxies with dynamical measurements of central supermassive black hole (SMBH) masses and well-characterized large-scale environments, but regardless of the exact level of the nuclear activity.
Anna Wójtowicz +4 more
doaj +2 more sources
The Nature of Radio Continuum Emission at Very Low Metallicity: Very Large Array Observations of I Zw 18 [PDF]
Astrophys.J. 621 (2005) L21-L24, 2005 We present the first resolved study of the radio continuum properties of I Zw 18, the dwarf galaxy with the lowest known nebular metal abundance in the local universe. New Very Large Array radio continuum images at 20 and 3.6 cm are compared to various Hubble Space Telescope images, and we find a striking morphological similarity between high ...
John M. Cannon +3 more
openalex +2 more sources
Radio Continuum Emission in Polar Ring Galaxies [PDF]
, 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.
Anna L. Cox, Linda S. Sparke
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Detection of the thermal radio continuum emission from the G9.62+0.19-F Hot Core [PDF]
arXiv, 2000 We present new high resolution and high sensitivity multi-frequency VLA radio continuum observations of the G9.62+0.19-F hot molecular core. We detect for the first time faint centimetric radio continuum emission at the position of the core. The centimetric continuum spectrum of the source is consistent with thermal emission from ionised gas.
L. Testi +3 more
openalex +3 more sources
On the integrated continuum radio spectrum of supernova remnant W44 (G34.7-0.4): New insights from Planck [PDF]
Serbian 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 +1 more source
An Ionized Outflow in Orion-KL Source I?
The 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
The 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
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First Detection of Radio Emission Associated with a Classical Cepheid
The 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]
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
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