Collimated synchrotron threads linking the radio lobes of ESO 137-006

M. Ramatsoku; M. Murgia; V. Vacca; P. Serra; S. Makhathini; F. Govoni; O. Smirnov; L. A. L. Andati; E. de Blok; G. I. G. Jozsa; P. Kamphuis; D. Kleiner; F. M. Maccagni; D. Cs. Molnar; A. J. T. Ramaila; K. Thorat; S. V. White

doi:10.1051/0004-6361/202037800

Collimated synchrotron threads linking the radio lobes of ESO 137-006

M. Ramatsoku^*, M. Murgia, V. Vacca, P. Serra, S. Makhathini, F. Govoni, O. Smirnov, L. A. L. Andati, E. de Blok, G. I. G. Jozsa, P. Kamphuis, D. Kleiner, F. M. Maccagni, D. Cs. Molnar, A. J. T. Ramaila, K. Thorat, S. V. White

^*Corresponding author for this work

Astronomy

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Abstract

We present MeerKAT 1000 MHz and 1400 MHz observations of a bright radio galaxy in the southern hemisphere, ESO 137-006. The galaxy lies at the centre of the massive and merging Norma galaxy cluster. The MeerKAT continuum images (rms ∼0.02 mJy beam^-1 at ∼10″ resolution) reveal new features that have never been seen in a radio galaxy before: collimated synchrotron threads of yet unknown origin, which link the extended and bent radio lobes of ESO 137-006. The most prominent of these threads stretches in projection for about 80 kpc and is about 1 kpc in width. The radio spectrum of the threads is steep, with a spectral index of up to α≲ 2 between 1000 and 1400 MHz.

Original language	English
Article number	L1
Number of pages	5
Journal	Astronomy & Astrophysics
Volume	636
DOIs	https://doi.org/10.1051/0004-6361/202037800
Publication status	Published - 8-Apr-2020

Keywords

radio continuum: galaxies
HEAD-TAIL
GALAXIES
JET
CLUSTERS

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Collimated synchrotron threads linking the radio lobes of ESO 137-006Final publisher's version, 2.75 MBLicence: Taverne

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Ramatsoku, M., Murgia, M., Vacca, V., Serra, P., Makhathini, S., Govoni, F., Smirnov, O., Andati, L. A. L., de Blok, E., Jozsa, G. I. G., Kamphuis, P., Kleiner, D., Maccagni, F. M., Molnar, D. C., Ramaila, A. J. T., Thorat, K., & White, S. V. (2020). Collimated synchrotron threads linking the radio lobes of ESO 137-006. Astronomy & Astrophysics, 636, Article L1. https://doi.org/10.1051/0004-6361/202037800

@article{f9b48b51a358422e8f3b49a95d762565,

title = "Collimated synchrotron threads linking the radio lobes of ESO 137-006",

abstract = "We present MeerKAT 1000 MHz and 1400 MHz observations of a bright radio galaxy in the southern hemisphere, ESO 137-006. The galaxy lies at the centre of the massive and merging Norma galaxy cluster. The MeerKAT continuum images (rms ∼0.02 mJy beam-1 at ∼10″ resolution) reveal new features that have never been seen in a radio galaxy before: collimated synchrotron threads of yet unknown origin, which link the extended and bent radio lobes of ESO 137-006. The most prominent of these threads stretches in projection for about 80 kpc and is about 1 kpc in width. The radio spectrum of the threads is steep, with a spectral index of up to α≲ 2 between 1000 and 1400 MHz.",

keywords = "radio continuum: galaxies, HEAD-TAIL, GALAXIES, JET, CLUSTERS",

author = "M. Ramatsoku and M. Murgia and V. Vacca and P. Serra and S. Makhathini and F. Govoni and O. Smirnov and Andati, {L. A. L.} and {de Blok}, E. and Jozsa, {G. I. G.} and P. Kamphuis and D. Kleiner and Maccagni, {F. M.} and Molnar, {D. Cs.} and Ramaila, {A. J. T.} and K. Thorat and White, {S. V.}",

year = "2020",

month = apr,

day = "8",

doi = "10.1051/0004-6361/202037800",

language = "English",

volume = "636",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = " EDP Sciences",

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TY - JOUR

T1 - Collimated synchrotron threads linking the radio lobes of ESO 137-006

AU - Ramatsoku, M.

AU - Murgia, M.

AU - Vacca, V.

AU - Serra, P.

AU - Makhathini, S.

AU - Govoni, F.

AU - Smirnov, O.

AU - Andati, L. A. L.

AU - de Blok, E.

AU - Jozsa, G. I. G.

AU - Kamphuis, P.

AU - Kleiner, D.

AU - Maccagni, F. M.

AU - Molnar, D. Cs.

AU - Ramaila, A. J. T.

AU - Thorat, K.

AU - White, S. V.

PY - 2020/4/8

Y1 - 2020/4/8

N2 - We present MeerKAT 1000 MHz and 1400 MHz observations of a bright radio galaxy in the southern hemisphere, ESO 137-006. The galaxy lies at the centre of the massive and merging Norma galaxy cluster. The MeerKAT continuum images (rms ∼0.02 mJy beam-1 at ∼10″ resolution) reveal new features that have never been seen in a radio galaxy before: collimated synchrotron threads of yet unknown origin, which link the extended and bent radio lobes of ESO 137-006. The most prominent of these threads stretches in projection for about 80 kpc and is about 1 kpc in width. The radio spectrum of the threads is steep, with a spectral index of up to α≲ 2 between 1000 and 1400 MHz.

AB - We present MeerKAT 1000 MHz and 1400 MHz observations of a bright radio galaxy in the southern hemisphere, ESO 137-006. The galaxy lies at the centre of the massive and merging Norma galaxy cluster. The MeerKAT continuum images (rms ∼0.02 mJy beam-1 at ∼10″ resolution) reveal new features that have never been seen in a radio galaxy before: collimated synchrotron threads of yet unknown origin, which link the extended and bent radio lobes of ESO 137-006. The most prominent of these threads stretches in projection for about 80 kpc and is about 1 kpc in width. The radio spectrum of the threads is steep, with a spectral index of up to α≲ 2 between 1000 and 1400 MHz.

KW - radio continuum: galaxies

KW - HEAD-TAIL

KW - GALAXIES

KW - JET

KW - CLUSTERS

U2 - 10.1051/0004-6361/202037800

DO - 10.1051/0004-6361/202037800

M3 - Article

SN - 0004-6361

VL - 636

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - L1

ER -

Collimated synchrotron threads linking the radio lobes of ESO 137-006

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