Radio and X-ray diffuse emission in six clusters of galaxies

Deep Very Large Array radio observations confirm the presence of halo and relic sources in six clusters of galaxies (A115, A520, A773, A1664, A2254, A2744) where a wide diffuse emission was previously found in the NRAO VLA Sky Survey. New images at 1.4 GHz of these six clusters of galaxies are presented and X-ray data obtained from the ROSAT archive are analyzed. The properties of clusters hosting radio halos and relics are analyzed and discussed. A correlation between the halo radio power and the cluster gravitational mass is presented.

[1]  D. A. Green.  A Catalogue of Galactic Supernova Remnants , 1996 .

[2]  A. Konovalenko,et al.  The Universe at Very Low Radio Frequencies , 2002 .

[3]  G. Giovannini,et al.  Particle reacceleration in the Coma cluster: radio properties and hard X‐ray emission , 2000, astro-ph/0008518.

[4]  J. Trümper.  The ROSAT Mission , 1982 .

[5]  Richard L. White,et al.  The FIRST Survey: Faint Images of the Radio Sky at twenty centimeters , 1995 .

[6]  Radio halo and relic candidates from the NRAO VLA Sky Survey , 1999, astro-ph/9904210.

[7]  T. Beers,et al.  Galaxy clusters with multiple components. II - Abell 115 , 1983 .

[8]  G. Abell,et al.  A Catalog of Rich Clusters of Galaxies , 1989 .

[9]  A comparison of radio and X-ray morphologies of four clusters of galaxies containing radio halos , 2001, astro-ph/0101418.

[10]  F. Owen,et al.  Cluster-subcluster Mergers and the Formation of Narrow-angle Tailed Radio Sources , 1998, astro-ph/9811005.

[11]  E. Greisen,et al.  The NRAO VLA Sky Survey , 1996 .

[12]  Nmsu,et al.  The Observational Consequences of Merging Clusters of Galaxies , 1996, astro-ph/9608102.

[13]  The Intracluster Gas Fraction in X-ray Clusters : Constraints on the Clustered Mass Density , 1997, astro-ph/9701148.

[14]  H. Böhringer,et al.  The radio and X-ray properties of Abell 2319 , 1997 .

[15]  S. Allen,et al.  The relationship between cooling flows and metallicity measurements for X-ray-luminous clusters , 1998, astro-ph/9802219.

[16]  R. Hunstead,et al.  A Powerful Radio Halo in the Hottest Known Cluster of Galaxies 1E 0657–56 , 2000, astro-ph/0006072.

[17]  R. Ekers,et al.  THE EXTENDED RADIO EMISSION IN THE LUMINOUS X-RAY CLUSTER A3667 , 1997 .

[18]  John E. Carlstrom,et al.  Interferometric Imaging of the Sunyaev-Zeldovich Effect at 30 GHz , 1996 .

[19]  T. Ohashi,et al.  Temperature Variation in the Cluster of Galaxies Abell 115 Studied with ASCA , 1999, astro-ph/9906357.

[20]  Properties of the X-ray-brightest Abell-type clusters of galaxies (XBACs) from ROSAT All-Sky Survey data - I. The sample , 1996, astro-ph/9602080.

[21]  Sidney van den Bergh,et al.  A catalogue of galactic supernova remnants , 1983 .

[22]  R. Giacconi,et al.  Einstein imaging observations of clusters with a bimodal mass distribution , 1981 .

[23]  Maxim Markevitch,et al.  The LX-T Relation and Temperature Function for Nearby Clusters Revisited , 1998, astro-ph/9802059.

[24]  D. Buote.  On the Origin of Radio Halos in Galaxy Clusters , 2001, astro-ph/0104211.

[25]  A Cluster Merger and the Origin of the Extended Radio Emission in Abell 3667 , 1999, astro-ph/9902115.

[27]  M. Markevitch,et al.  The Temperature Structure of 30 Nearby Clusters Observed with ASCA: Similarity of Temperature Profiles , 1997, astro-ph/9711289.

[28]  August E. Evrard,et al.  Mass estimates of X-ray clusters , 1996 .

[29]  M. Willson.  Radio Observations of the Cluster of Galaxies in Coma Berenices— the 5C4 Survey , 1970 .

[30]  A. Fabian,et al.  Collisions between clusters of galaxies , 1984 .

[31]  G. Giovannini,et al.  The halo radio source Coma C and the origin of halo sources , 1993 .

[32]  W. Voges,et al.  X-ray observations of distant Abell clusters , 1998 .

[33]  A. Finoguenov,et al.  Details of the mass-temperature relation for clusters of galaxies , 2001 .