Related papers: Diffuse cluster-like radio emission in poor enviro…

The far-infrared view of M87 as seen by the Herschel Space Observatory

The origin of the far-infrared emission from the nearby radio galaxy M87 remains a matter of debate. Some studies find evidence of a far-infrared excess due to thermal dust emission, whereas others propose that the far-infrared emission can…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 M. Baes , M. Clemens , E. M. Xilouris , J. Fritz , W. D. Cotton , J. I. Davies , G. J. Bendo , S. Bianchi , L. Cortese , I. De Looze , M. Pohlen , J. Verstappen , H. Bohringer , D. J. Bomans , A. Boselli , E. Corbelli , A. Dariush , S. di Serego Alighieri , D. Fadda , D. A. Garcia-Appadoo , G. Gavazzi , C. Giovanardi , M. Grossi , T. M. Hughes , L. K. Hunt , A. P. Jones , S. Madden , D. Pierini , S. Sabatini , M. W. L. Smith , C. Vlahakis , S. Zibetti

Diffuse light and building history of the galaxy cluster Abell 2667

We have searched for diffuse intracluster light in the galaxy cluster Abell 2667 (z=0.233) from HST images in three filters. We have applied to these images an iterative multi-scale wavelet analysis and reconstruction technique, which…

Astrophysics · Physics 2009-11-11 G. Covone , C. Adami , F. Durret , J. -P. Kneib , G. B. Lima Neto , E. Slezak

Low-frequency integrated radio spectra of diffuse, steep-spectrum sources in galaxy clusters: palaeontology with the MWA and ASKAP

Galaxy clusters have been found to host a range of diffuse, non-thermal emission components, generally with steep, power law spectra. In this work we report on the detection and follow-up of radio halos, relics, remnant radio galaxies, and…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-20 S. W. Duchesne , M. Johnston-Hollitt , I. Bartalucci

The diffuse radio emission around NGC 5580 and NGC 5588

The galaxy pair NGC 5580 and NGC 5588 are part of a loose group of galaxies. They are surrounded by steep-spectrum, extended radio emission which was previously suggested to be a down-scaled example of Mpc-size radio haloes present in…

Astrophysics of Galaxies · Physics 2015-06-18 F. de Gasperin , H. T. Intema , W. Williams , M. Brüggen , M. Murgia , R. Beck , A. Bonafede

Planck intermediate results. VII. Statistical properties of infrared and radio extragalactic sources from the Planck Early Release Compact Source Catalogue at frequencies between 100 and 857 GHz

(abridged for arXiv) We make use of the Planck all-sky survey to derive number counts and spectral indices of extragalactic sources -- infrared and radio sources -- from the Planck Early Catalogue (ERCSC) at 100 to 857GHz. Our sample…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Planck Collaboration , P. A. R. Ade , N. Aghanim , F. Argüeso , M. Arnaud , M. Ashdown , F. Atrio-Barandela , J. Aumont , C. Baccigalupi , A. Balbi , A. J. Banday , R. B. Barreiro , E. Battaner , K. Benabed , A. Benoît , J. -P. Bernard , M. Bersanelli , M. Bethermin , R. Bhatia , A. Bonaldi , J. R. Bond , J. Borrill , F. R. Bouchet , C. Burigana , P. Cabella , J. -F. Cardoso , A. Catalano , L. Cayón , A. Chamballu , R. -R. Chary , X. Chen , L. -Y Chiang , P. R. Christensen , D. L. Clements , S. Colafrancesco , S. Colombi , L. P. L. Colombo , A. Coulais , B. P. Crill , F. Cuttaia , L. Danese , R. J. Davis , P. de Bernardis , G. de Gasperis , G. de Zotti , J. Delabrouille , C. Dickinson , J. M. Diego , H. Dole , S. Donzelli , O. Doré , U. Dörl , M. Douspis , X. Dupac , G. Efstathiou , T. A. Enßlin , H. K. Eriksen , F. Finelli , O. Forni , P. Fosalba , M. Frailis , E. Franceschi , S. Galeotta , K. Ganga , M. Giard , G. Giardino , Y. Giraud-Héraud , J. González-Nuevo , K. M. Górski , A. Gregorio , A. Gruppuso , F. K. Hansen , D. Harrison , S. Henrot-Versillé , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , T. R. Jaffe , A. H. Jaffe , T. Jagemann , W. C. Jones , M. Juvela , E. Keihänen , T. S. Kisner , R. Kneissl , J. Knoche , L. Knox , M. Kunz , N. Kurinsky , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , C. R. Lawrence , R. Leonardi , P. B. Lilje , M. López-Caniego , J. F. Macías-Pérez , D. Maino , N. Mandolesi , M. Maris , D. J. Marshall , E. Martínez-González , S. Masi , M. Massardi , S. Matarrese , P. Mazzotta , A. Melchiorri , L. Mendes , A. Mennella , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , S. Osborne , F. Pajot , R. Paladini , D. Paoletti , B. Partridge , F. Pasian , G. Patanchon , O. Perdereau , L. Perotto , F. Perrotta , F. Piacentini , M. Piat , E. Pierpaoli , S. Plaszczynski , E. Pointecouteau , G. Polenta , N. Ponthieu , L. Popa , T. Poutanen , G. W. Pratt , S. Prunet , J. -L. Puget , J. P. Rachen , W. T. Reach , R. Rebolo , M. Reinecke , C. Renault , S. Ricciardi , T. Riller , I. Ristorcelli , G. Rocha , C. Rosset , M. Rowan-Robinson , J. A. Rubiño-Martín , B. Rusholme , A. Sajina , M. Sandri , G. Savini , D. Scott , G. F. Smoot , J. -L. Starck , R. Sudiwala , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , M. Türler , L. Valenziano , B. Van Tent , P. Vielva , F. Villa , N. Vittorio , L. A. Wade , B. D. Wandelt , M. White , D. Yvon , A. Zacchei , A. Zonca

The cluster relic source in A521

We present high sensitivity radio observations of the merging cluster A521, at a mean redsfhit z=0.247. The observations were carried out with the GMRT at 610 MHz and cover a region of $\sim$1 square degree, with a sensitivity limit of…

Astrophysics · Physics 2009-11-11 S. Giacintucci , T. Venturi , S. Bardelli , G. Brunetti , R. Cassano , D. Dallacasa

Diffuse Gamma Rays: Galactic and Extragalactic Diffuse Emission

"Diffuse" gamma rays consist of several components: truly diffuse emission from the interstellar medium, the extragalactic background, whose origin is not firmly established yet, and the contribution from unresolved and faint Galactic point…

Astrophysics · Physics 2015-06-24 I. V. Moskalenko , A. W. Strong , O. Reimer

Radio Galaxy Zoo: discovery of a poor cluster through a giant wide-angle tail radio galaxy

We have discovered a previously unreported poor cluster of galaxies (RGZ-CL J0823.2+0333) through an unusual giant wide-angle tail radio galaxy found in the Radio Galaxy Zoo project. We obtained a spectroscopic redshift of $z=0.0897$ for…

Astrophysics of Galaxies · Physics 2016-06-20 J. K. Banfield , H. Andernach , A. D. Kapinska , L. Rudnick , M. J. Hardcastle , G. Cotter , S. Vaughan , T. W. Jones , I. Heywood , J. D. Wing , O. I. Wong , T. Matorny , I. A. Terentev , A. R. Lopez-Sanchez , R. P. Norris , N. Seymour , S. S. Shabala , K. W. Willett

Using the polarization properties of double radio relics to probe the turbulent compression scenario

Radio relics are Mpc-size synchrotron sources located in the outskirts of some merging galaxy clusters. Binary-merging systems with favorable orientation may host two almost symmetric relics, named double radio relics. Double radio relics…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-28 C. Stuardi , A. Bonafede , K. Rajpurohit , M. Brüggen , F. de Gasperin , D. Hoang , R. J. van Weeren , F. Vazza

Statistics of Galactic Synchrotron and Dust Foregrounds: Spectra, PDFs and Higher-Order Moments

We present statistical analysis of diffuse Galactic synchrotron emission and polarized thermal emission from dust. Both Galactic synchrotron emission and polarized thermal emission from dust reflect statistics of magnetic field fluctuations…

Astrophysics · Physics 2008-12-12 Jungyeon Cho , A. Lazarian

Low frequency follow up of radio halos and relics in the GMRT Radio Halo Cluster Survey

We performed GMRT low frequency observations of the radio halos, relics and new candidates belonging to the GMRT Radio Halo Cluster Sample first observed at 610 MHz. High sensitivity imaging was performed using the GMRT at 325 MHz and 240…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Tiziana Venturi , Simona Giacintucci , Daniele Dallacasa , Rossella Cassano , Gianfranco Brunetti , Giulia Macario , Ramana Athreya

Planck 2015 results. XXV. Diffuse low-frequency Galactic foregrounds

(abridged) We discuss the Galactic foreground emission between 20 and 100GHz based on observations by Planck/WMAP. The Commander component-separation tool has been used to separate the various astrophysical processes in total intensity.…

Astrophysics of Galaxies · Physics 2016-09-21 Planck Collaboration , P. A. R. Ade , N. Aghanim , M. I. R. Alves , M. Arnaud , M. Ashdown , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , N. Bartolo , E. Battaner , K. Benabed , A. Benoit , A. Benoit-Levy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , A. Catalano , A. Challinor , A. Chamballu , R. -R. Chary , H. C. Chiang , P. R. Christensen , S. Colombi , L. P. L. Colombo , C. Combet , F. Couchot , A. Coulais , B. P. Crill , A. Curto , F. Cuttaia , L. Danese , R. D. Davies , R. J. Davis , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , J. -M. Delouis , F. -X. Desert , C. Dickinson , J. M. Diego , H. Dole , S. Donzelli , O. Dore , M. Douspis , A. Ducout , X. Dupac , G. Efstathiou , F. Elsner , T. A. Ensslin , H. K. Eriksen , E. Falgarone , J. Fergusson , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frejsel , S. Galeotta , S. Galli , K. Ganga , T. Ghosh , M. Giard , Y. Giraud-Heraud , E. Gjerlow , J. Gonzalez-Nuevo , K. M. Gorski , S. Gratton , A. Gregorio , A. Gruppuso , J. E. Gudmundsson , F. K. Hansen , D. Hanson , D. L. Harrison , G. Helou , S. Henrot-Versille , C. Hernandez-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , K. M. Huffenberger , G. Hurier , A. H. Jaffe , T. R. Jaffe , W. C. Jones , M. Juvela , E. Keihanen , R. Keskitalo , T. S. Kisner , R. Kneissl , J. Knoche , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lahteenmaki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , J. P. Leahy , R. Leonardi , J. Lesgourgues , F. Levrier , M. Liguori , P. B. Lilje , M. Linden-Vornle , M. Lopez-Caniego , P. M. Lubin , J. F. Macias-Perez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , M. Maris , D. J. Marshall , P. G. Martin , E. Martinez-Gonzalez , S. Masi , S. Matarrese , P. McGehee , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , S. Mitra , M. -A. Miville-Deschenes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. U. Norgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , E. Orlando , C. A. Oxborrow , F. Paci , L. Pagano , F. Pajot , R. Paladini , D. Paoletti , B. Partridge , F. Pasian , G. Patanchon , T. J. Pearson , M. Peel , O. Perdereau , L. Perotto , F. Perrotta , V. Pettorino , F. Piacentini , M. Piat , E. Pierpaoli , D. Pietrobon , S. Plaszczynski , E. Pointecouteau , G. Polenta , G. W. Pratt , G. Prezeau , S. Prunet , J. -L. Puget , J. P. Rachen , W. T. Reach , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , G. Roudier , J. A. Rubino-Martin , B. Rusholme , M. Sandri , D. Santos , M. Savelainen , G. Savini , D. Scott , M. D. Seiffert , E. P. S. Shellard , L. D. Spencer , V. Stolyarov , R. Stompor , A. W. Strong , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , J. Tuovinen , G. Umana , L. Valenziano , J. Valiviita , B. Van Tent , M. Vidal , P. Vielva , F. Villa , L. A. Wade , B. D. Wandelt , R. Watson , I. K. Wehus , A. Wilkinson , D. Yvon , A. Zacchei , A. Zonca

Non thermal emission from galaxy clusters: radio halos

The number of diffuse radio halos in clusters of galaxies has grown in recent years, making it possible to derive statistical properties of these sources and of the hosting clusters. We show that diffuse sources are associated with X-ray…

Astrophysics · Physics 2007-05-23 L. Feretti , G. Brunetti , G. Giovannini , F. Govoni , G. Setti

Multi-frequency Radio Observations of the Dissociative Cluster Merger CIZA J0107.7+5408

We present new radio observations of the galaxy cluster merger CIZA J0107.7+5408 (CIZA0107), a large, roughly equal mass, post-core passage, dissociative binary system at z = 0.1066. CIZA0107 is an elongated, disturbed system, hosting two…

Astrophysics of Galaxies · Physics 2025-02-04 Emma Schwartzman , Tracy Clarke , Simona Giacintucci , Wendy Peters , Scott Randall , Reinout van Weeren , Arnab Sarkar , Lawrence Rudnick , Elizabeth Blanton , Kyle Finner , Tony Mroczkowski , Paul Nulsen

ROSAT/PSPC observation of the distant cluster CL0939+472

We present results and an analysis of a ROSAT PSPC pointed observation of the galaxy cluster CL0939+472. This very rich and very distant cluster is known to contain an unusually high fraction of blue and E+A galaxies, and a lot of merging…

Astrophysics · Physics 2007-05-23 S. Schindler , J. Wambsganss

The diffuse, relic radio source in Abell 85: estimation of cluster scale magnetic field from inverse Compton X-rays

We report the first detection of an inverse Compton X-ray emission, spatially correlated with a very steep spectrum radio source (VSSRS), 0038-096, without any detected optical counterpart, in cluster Abell 85. The ROSAT PSPC data and its…

Astrophysics · Physics 2009-10-30 J. Bagchi , V. Pislar , G. B. Lima Neto

Multiple shock structures in a radio selected cluster of galaxies

We present a new radio-selected cluster of galaxies, 0217+70, using observations from the Very Large Array and archival optical and X-ray data. The new cluster is one of only seven known that has candidate double peripheral radio relics,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Shea Brown , Jon Duesterhoeft , Lawrence Rudnick

Probing the Off-State of Cluster Giant Radio Halos

We derive the best characterization to date of the properties of radio quiescent massive galaxy clusters through a statistical analysis of their average synchrotron emissivity. We stacked 105 radio images of clusters from the 843 MHz SUMSS…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Shea Brown , Andrew Emerick , Lawrence Rudnick , Gianfranco Brunetti

The Mystery of the Cosmic Diffuse Ultraviolet Background Radiation

The diffuse cosmic background radiation in the GALEX far ultraviolet (FUV, 1300 \AA\ - 1700 \AA) is deduced to originate only partially in the dust-scattered radiation of FUV-emitting stars: the source of a substantial fraction of the FUV…

Astrophysics of Galaxies · Physics 2015-06-19 Richard Conn Henry , Jayant Murthy , James Overduin , Joshua Tyler

CSS galaxy embedded within the core of a bright X-ray cluster

We discovered an X-ray cluster in a recent pointed Chandra observation of the radio-loud compact-steep-spectrum source 1321+045 at the redshift of 0.263. 1321+045 is part of larger survey which aims to study the X-rays properties of weak…

Astrophysics of Galaxies · Physics 2013-11-18 Maciej Ceglowski , Magdalena Kunert-Bajraszewska , A. Siemiginowska , A. Labiano , M. Guainazzi