We present Low-Frequency Array (LOFAR) high-band data over the frequency range 115-189 MHz for the X-ray binary SS 433, obtained in an observing campaign from 2013 February to 2014 May. Our results include a deep, wide-field map, allowing a detailed view of the surrounding supernova remnant W50 at low radio frequencies, as well as a light curve for SS 433 determined from shorter monitoring runs. The complex morphology of W50 is in excellent agreement with previously published higher frequency maps; we find additional evidence for a spectral turnover in the eastern wing, potentially due to foreground free-free absorption. Furthermore, SS 433 is tentatively variable at 150 MHz, with both a debiased modulation index of 11 per cent and a Χ2 pro...
Context. Mixed-morphology supernova remnants (MM SNRs) are a mysterious class of objects that displa...
Context. Remnant radio galaxies represent the final dying phase of radio galaxy evolution in which t...
Radio emission is a key indicator of star formation activity in galaxies, but the radio luminosity–s...
© 2017 The Author(s). We present Low-Frequency Array (LOFAR) high-band data over the frequency range...
We present Low-Frequency Array (LOFAR) high-band data over the frequency range 115-189 MHz for the X...
We present Low-Frequency Array (LOFAR) high-band data over the frequency range 115–189 MHz for the X...
We present Low-Frequency Array (LOFAR) 143.5-MHz radio observations of flaring activity during 2019 ...
As part of the Low Frequency Array (LOFAR) Surveys KSP, targeted observations of H II regions close ...
Cassiopeia A was observed using the low-band antennas of the LOw Frequency ARray (LOFAR) with high s...
International audienceWe present an International LOFAR Telescope sub-arcsecond resolution image of ...
Context. Mixed-morphology supernova remnants (MM SNRs) are a mysterious class of objects that displa...
Context. Remnant radio galaxies represent the final dying phase of radio galaxy evolution in which t...
Radio emission is a key indicator of star formation activity in galaxies, but the radio luminosity–s...
© 2017 The Author(s). We present Low-Frequency Array (LOFAR) high-band data over the frequency range...
We present Low-Frequency Array (LOFAR) high-band data over the frequency range 115-189 MHz for the X...
We present Low-Frequency Array (LOFAR) high-band data over the frequency range 115–189 MHz for the X...
We present Low-Frequency Array (LOFAR) 143.5-MHz radio observations of flaring activity during 2019 ...
As part of the Low Frequency Array (LOFAR) Surveys KSP, targeted observations of H II regions close ...
Cassiopeia A was observed using the low-band antennas of the LOw Frequency ARray (LOFAR) with high s...
International audienceWe present an International LOFAR Telescope sub-arcsecond resolution image of ...
Context. Mixed-morphology supernova remnants (MM SNRs) are a mysterious class of objects that displa...
Context. Remnant radio galaxies represent the final dying phase of radio galaxy evolution in which t...
Radio emission is a key indicator of star formation activity in galaxies, but the radio luminosity–s...