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Multifrequency Observations of the S-Z Effect towards A1656

Published online by Cambridge University Press:  26 May 2016

M. De Petris ,
F. Melchiorri ,
A. Orlando ,
L. Lamagna ,
L. D'Alba ,
Y. Rephaeli ,
S. Colafrancesco ,
M. Signore ,
E. Kreysa  and
C. Castagnoli
M. De Petris
Affiliation:
1Department of Physics, University “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
F. Melchiorri
Affiliation:
1Department of Physics, University “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
A. Orlando
Affiliation:
1Department of Physics, University “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
L. Lamagna
Affiliation:
1Department of Physics, University “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
L. D'Alba
Affiliation:
1Department of Physics, University “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
Y. Rephaeli
Affiliation:
2School of Physics, Tel Aviv University, Tel Aviv, 69978, Israel
S. Colafrancesco
Affiliation:
3Osservatori di Roma, Via Frascati 33, I-00040 Monteporzio (RM), Italy
M. Signore
Affiliation:
4Observatoire de Paris, DEMIRM, 61 avenue de l'Observatoire, F-75014 Paris, France
E. Kreysa
Affiliation:
5Max Planck Institute fur Radioastronomie, Auf dem Huegel 69, D-53121 Bonn, Germany
C. Castagnoli
Affiliation:
6Istituto di Cosmogeofisica, CNR, Corso Fiume 4, I-10133 Turin, Italy

Abstract

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Observations of the Sunyaev-Zeldovich (S-Z) effect offer the possibility of both investigating evolution of clusters and of determining cosmological parameters when combined with X-ray observations. We describe a dedicated instrument (MITO) consisting of a 2.6-m in diameter telescope operating at 3500 m a.s.l. in the 2.1, 1.4, 1.1 and 0.8 mm channels with ˜ 10% bandwidths. Here we briefly report the results of MITO measurements towards the Coma cluster.

Type
Part XII: Poster Papers
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 447 - 448
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

De Petris, M., Aquilini, E., Canonico, M., D'Addio, L., de Bernardis, P., Mainella, G., Mandiello, A., Martinis, L., Masi, S., Melchiorri, B., Perciballi, M. & Scaramuzzi, F. 1996, New Astr., 1, 121.CrossRefGoogle Scholar