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Sunyaev-Zel'dovich Effect Observation Project with the Nobeyama 45-m Telescope

Published online by Cambridge University Press:  25 May 2016

M. Tsuboi ,
T. Ohno ,
A. Miyazaki ,
T. Kasuga ,
A. Sakamoto  and
T. Noguchi
M. Tsuboi
Affiliation:
Ibaraki University, Mito, Ibaraki, 310, Japan
T. Ohno
Affiliation:
Ibaraki University, Mito, Ibaraki, 310, Japan
A. Miyazaki
Affiliation:
Ibaraki University, Mito, Ibaraki, 310, Japan
T. Kasuga
Affiliation:
Hosei Univeristy, Koganei, Tokyo, 184, Japan
A. Sakamoto
Affiliation:
Nobeyama Radio Observatory, Nagano, 384-13, Japan
T. Noguchi
Affiliation:
Nobeyama Radio Observatory, Nagano, 384-13, Japan

Extract

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The combination of X-ray and Sunyaev-Zel'dovich (S-Z) effect observations toward cluster of galaxies gives the independent estimation of Hubble constant (Sunyaev and Zel'dovich 1970). The measurement of S-Z effect is one of the most difficult observations in radioastronomy because of the weakness of the effect, ΔT = 0.1 × 1 mK (e.g. Rephaeli 1995). Because the field of view of the exist interferometers is smaller than the extended distribution of S-Z effect of low redshifted clusters, single-dish telescopes gain an advantage over interferometers. In addition, to reduce the contaminations from Galaxy and galaxies in the cluster, the mm-wave observation is preferable. Thus, we have started the project of S-Z effect observation with the Nobeyama 45-m telescope, which is the largest mm-wave telescope in the world. Our scientific goal is reliable measurement of S-Z effect of many clusters. To realize this we have made a multi-feed PCTJ-SIS mixer receiver at 40 GHz as a sophisticated tool for the observation of S-Z effect (Noguchi et al. 1995, Kasuga et al. 1995, Tsuboi et al. 1997).

Type
Session 1: Plasma and Fresh Nucleosynthesis Phenomena
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 330 - 331
Copyright
Copyright © Kluwer 1998 

References

Kasuga, T., Tsuboi, M., Miyazaki, A., Noguchi, T., and Sakamoto, A. (1995) URSI General Assembly Google Scholar
Noguchi, T., Shi, S. -C., and Inatani, J. (1995) IEEE Trans. Appl. Superconductivity , Vol. 5, pp 2228–2231 CrossRefGoogle Scholar
Rephaeli, Y. (1995) Ann Rev. Ann. Astrophys. , Vol. 33, p541 Google Scholar
Sunyaev, R. A. and Zel'dovich, Y. B. (1970) Astrophys. and Space Sci. , Vol. 7, p3 CrossRefGoogle Scholar
Tsuboi, M., Miyazaki, A, Kasuga, T., Sakamoto, A, and Noguchi, T. (1997) TWAA '96 , pp. 99–103 Google Scholar