2021
DOI: 10.1051/0004-6361/202040063
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Constraining the AGN duty cycle in the cool-core cluster MS 0735.6+7421 with LOFAR data

Abstract: Context. MS 0735.6+7421 is a galaxy cluster that hosts a central radio galaxy with a very steep spectrum. The spectrum is produced by one of the most powerful known jetted active galactic nuclei (AGN). The radio plasma, ejected at nearly light speed from the central AGN, has displaced the intra-cluster medium, leaving two pairs of cavities observable in the X-ray. The cavities are associated with two different outbursts and have distributed energy to the surrounding medium. While the age of the cavities has pr… Show more

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Cited by 29 publications
(33 citation statements)
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“…(2009). It also appears to be consistent with the wider radio emission reported in Biava et al (2021).…”
Section: Mhz Lofar Observationssupporting
confidence: 88%
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“…(2009). It also appears to be consistent with the wider radio emission reported in Biava et al (2021).…”
Section: Mhz Lofar Observationssupporting
confidence: 88%
“…More recently, Biava et al (2021) presented new LOFAR observations at 144 MHz of MS0735. These observations show a greater spatial correspondence between the morphologies of the jets and of the X-ray cavities.…”
Section: Mhz Lofar Observationsmentioning
confidence: 99%
See 1 more Smart Citation
“…A similar lack of pressure balance has been reported for other cluster and group central radio galaxies (e.g., [73]), including dying/restarted radio galaxies (e.g., [4,74,75]). It suggests a departure from the minimum energy condition within the radio-emitting plasma, i.e., a higher relativistic particle or magnetic field energy density within the radio lobes.…”
Section: Thermal/non-thermal Pressure Comparisonsupporting
confidence: 80%
“…In this respect, LOFAR has recently enabled the first detailed observations of galaxy clusters at frequencies of <200 MHz thanks to the unprecedented high sensitivity and high resolution in its operational frequency range. This potential has already been demonstrated as LOFAR has proved to be very fruitful in investigating different aspects of nonthermal phenomena in the ICM, allowing us: to discover new instances of diffuse sources in clusters (e.g., Shimwell et al 2016;Savini et al 2018aSavini et al , 2019Wilber et al 2019), including ultra-steep spectrum emission (e.g., Brüggen et al 2018;Wilber et al 2018;Mandal et al 2020;Biava et al 2021b) and very large-scale emission outside the central cluster region (e.g., Govoni et al 2019;Botteon et al 2019aBotteon et al , 2020bBonafede et al 2021;Hoeft et al 2021;Hoang et al 2021b), as well as new faint halos and relics (e.g., Botteon et al 2019aBotteon et al , 2021aLocatelli et al 2020;Hoang et al 2021a) and high-z systems (e.g., Cassano et al 2019;Di Gennaro et al 2021a); to pinpoint the complex interplay between tailed cluster AGN and ICM motions (e.g., de Gasperin et al 2017;Clarke et al 2019;Hardcastle et al 2019;Botteon et al 2020aBotteon et al , 2021bIgnesti et al 2021); to study the central cluster AGN duty cycle, structure, and interaction with the hot ICM (e.g., Brienza et al 2020;Bîrzan et al 2020;Biava et al 2021a;Timmerman et al 2022); and to detect extended, extraplanar emission from star-forming galaxies infalling into clusters (e.g., Ignesti et al 2020Igne...…”
Section: Introductionmentioning
confidence: 99%