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91 papers
Duty cycle of the radio galaxy B2 0258+35
M. Brienza, R. Morganti, M. Murgia +14
Radio loud Active Galactic Nuclei are episodic in nature, cycling through periods of activity and quiescence. In this work we investigate the duty cycle of the radio galaxy B2~0258…
A LOFAR view on the duty cycle of young radio sources
M. Brienza, R. Morganti, A. Shulevski +2
Compact Steep Spectrum, Gigahertz Peaked Spectrum and High Frequency Peak (CSS, GPS, HFP) sources are considered to be young radio sources but the details of their duty cycle are n…
AGN duty cycle estimates for the ultra-steep spectrum radio relic VLSS J1431.8+1331
A. Shulevski, R. Morganti, P. D. Barthel +19
Steep spectrum radio sources associated with active galactic nuclei (AGN) may contain remnants of past AGN activity episodes. Novel instruments like the LOw Frequency ARray (LOFAR)…
The LOFAR Multifrequency Snapshot Sky Survey (MSSS) I. Survey description and first results
G. H. Heald, R. F. Pizzo, E. Orrú +147
We present the Multifrequency Snapshot Sky Survey (MSSS), the first northern-sky LOFAR imaging survey. In this introductory paper, we first describe in detail the motivation and de…
LOFAR discovery of a 700-kpc remnant radio galaxy at low redshift
M. Brienza, L. Godfrey, R. Morganti +13
Remnant radio galaxies represent the final dying phase of radio galaxy evolution, in which the jets are no longer active. Due to their rarity in flux limited samples and the diffic…
Radio imaging observations of PSR J1023+0038 in an LMXB state
A. T. Deller, J. Moldón, J. C. A. Miller-Jones +6
The transitional millisecond pulsar binary system PSR J1023+0038 re-entered an accreting state in 2013 June, in which it bears many similarities to low-mass X-ray binaries (LMXBs)…