586 citations · 5.2k across the 112 of their papers we have counts for
8 papers · 1 filter
V-LoTSS: The Circularly-Polarised LOFAR Two-metre Sky Survey
J. R. Callingham, T. W. Shimwell, H. K. Vedantham +44
We present the detection of 68 sources from the most sensitive radio survey in circular polarisation conducted to date. We use the second data release of the 144 MHz LOFAR Two-metr…
Extragalactic Peaked-Spectrum Radio Sources at Low-Frequencies are Young Radio Galaxies
M. M. Slob, J. R. Callingham, H. J. A. Röttgering +5
We present a sample of 373 peaked-spectrum (PS) sources with spectral peaks around 150MHz, selected using a subset of two LOFAR all-sky surveys, the LOFAR Two Meter Sky Survey and…
Radio masers on WX UMa: hints of a Neptune-sized planet, or magnetospheric reconnection?
Robert D. Kavanagh, Aline A. Vidotto, Harish K. Vedantham +3
The nearby M dwarf WX UMa has recently been detected at radio wavelengths with LOFAR. The combination of its observed brightness temperature and circular polarisation fraction sugg…
Wide-Band Spectral Variability of Peaked Spectrum Sources
K. Ross, N. Hurley-Walker, N. Seymour +3
Characterising spectral variability of radio sources is a technique that offers the ability to determine the astrophysics of the intervening media, source structure, emission and a…
Searching for pulsars associated with polarised point sources using LOFAR: Initial discoveries from the TULIPP project
C. Sobey, C. G. Bassa, S. P. O'Sullivan +15
Discovering radio pulsars, particularly millisecond pulsars (MSPs), is important for a range of astrophysical applications, such as testing theories of gravity or probing the magne…
The LOFAR Two-metre Sky Survey -- V. Second data release
T. W. Shimwell, M. J. Hardcastle, C. Tasse +103
In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at ap…
Peculiar radioX-ray relationship in active stars
H. K. Vedantham, J. R. Callingham, T. W. Shimwell +5
The empirical relationship between the non-thermal 5GHz radio luminosity and the soft X-ray luminosity of active stellar coronae, canonically called the Güdel-Benz relationship (Gü…
Optical Properties of Peaked Spectrum Radio Sources
R. S. Nascimento, A. Rodríguez-Ardila, L. Dahmer-Hahn +5
In this work, we study the optical properties of compact radio sources selected from the literature in order to determine the impact of the radio-jet in their circumnuclear environ…