SZ effect from Corona Borealis supercluster

E. S. Battistelli; M. De Petris; L. Lamagna; R. A. Watson; R. Rebolo; R. Génova-Santos; G. Luzzi; S. De Gregori; J. A. Rubiño-Martin

doi:10.1016/j.newar.2006.11.040

SZ effect from Corona Borealis supercluster

E. S. Battistelli, M. De Petris, L. Lamagna, R. A. Watson, R. Rebolo, R. Génova-Santos, G. Luzzi, S. De Gregori, J. A. Rubiño-Martin

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Abstract

The Corona Borealis supercluster has been observed with the millimeter and infrared testa grigia observatory (MITO). Here we present the results of the observations together with a comparison with observations performed at 33 GHz with the very small array (VSA) interferometer. We have observed in the direction of the supercluster toward a cosmic microwave background (CMB) cold spot previously detected in a VSA temperature map. We claim a weak detection of a faint signal compatible with a SZ effect characterized at most by a comptonization parameter y = (7.8- 4.4+ 5.3) × 10- 6 68% CL. The low level of confidence in the presence of a SZ signal invites us to study this sky region with higher sensitivity and angular resolution experiments such as already planned upgraded versions of VSA and MITO. This is the first millimetric evidence of unknown cluster/diffuse intra-supercluster gas (possibly warm-hot intergalactic medium (WHIM)) interacting, via inverse Compton, scattering with the CMB. © 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	374-380
Number of pages	6
Journal	New Astronomy Reviews
Volume	51
Issue number	3-4
DOIs	https://doi.org/10.1016/j.newar.2006.11.040
Publication status	Published - Mar 2007

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10.1016/j.newar.2006.11.040

http://adsabs.harvard.edu/abs/2007NewAR..51..374B

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@article{a98415b54372494ebe73074b939ea723,

title = "SZ effect from Corona Borealis supercluster",

abstract = "The Corona Borealis supercluster has been observed with the millimeter and infrared testa grigia observatory (MITO). Here we present the results of the observations together with a comparison with observations performed at 33 GHz with the very small array (VSA) interferometer. We have observed in the direction of the supercluster toward a cosmic microwave background (CMB) cold spot previously detected in a VSA temperature map. We claim a weak detection of a faint signal compatible with a SZ effect characterized at most by a comptonization parameter y = (7.8- 4.4+ 5.3) × 10- 6 68% CL. The low level of confidence in the presence of a SZ signal invites us to study this sky region with higher sensitivity and angular resolution experiments such as already planned upgraded versions of VSA and MITO. This is the first millimetric evidence of unknown cluster/diffuse intra-supercluster gas (possibly warm-hot intergalactic medium (WHIM)) interacting, via inverse Compton, scattering with the CMB. {\textcopyright} 2006 Elsevier B.V. All rights reserved.",

author = "Battistelli, {E. S.} and {De Petris}, M. and L. Lamagna and Watson, {R. A.} and R. Rebolo and R. G{\'e}nova-Santos and G. Luzzi and {De Gregori}, S. and Rubi{\~n}o-Martin, {J. A.}",

year = "2007",

month = mar,

doi = "10.1016/j.newar.2006.11.040",

language = "English",

volume = "51",

pages = "374--380",

journal = "New Astronomy Reviews",

publisher = "Elsevier BV",

number = "3-4",

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TY - JOUR

T1 - SZ effect from Corona Borealis supercluster

AU - Battistelli, E. S.

AU - De Petris, M.

AU - Lamagna, L.

AU - Watson, R. A.

AU - Rebolo, R.

AU - Génova-Santos, R.

AU - Luzzi, G.

AU - De Gregori, S.

AU - Rubiño-Martin, J. A.

PY - 2007/3

Y1 - 2007/3

N2 - The Corona Borealis supercluster has been observed with the millimeter and infrared testa grigia observatory (MITO). Here we present the results of the observations together with a comparison with observations performed at 33 GHz with the very small array (VSA) interferometer. We have observed in the direction of the supercluster toward a cosmic microwave background (CMB) cold spot previously detected in a VSA temperature map. We claim a weak detection of a faint signal compatible with a SZ effect characterized at most by a comptonization parameter y = (7.8- 4.4+ 5.3) × 10- 6 68% CL. The low level of confidence in the presence of a SZ signal invites us to study this sky region with higher sensitivity and angular resolution experiments such as already planned upgraded versions of VSA and MITO. This is the first millimetric evidence of unknown cluster/diffuse intra-supercluster gas (possibly warm-hot intergalactic medium (WHIM)) interacting, via inverse Compton, scattering with the CMB. © 2006 Elsevier B.V. All rights reserved.

AB - The Corona Borealis supercluster has been observed with the millimeter and infrared testa grigia observatory (MITO). Here we present the results of the observations together with a comparison with observations performed at 33 GHz with the very small array (VSA) interferometer. We have observed in the direction of the supercluster toward a cosmic microwave background (CMB) cold spot previously detected in a VSA temperature map. We claim a weak detection of a faint signal compatible with a SZ effect characterized at most by a comptonization parameter y = (7.8- 4.4+ 5.3) × 10- 6 68% CL. The low level of confidence in the presence of a SZ signal invites us to study this sky region with higher sensitivity and angular resolution experiments such as already planned upgraded versions of VSA and MITO. This is the first millimetric evidence of unknown cluster/diffuse intra-supercluster gas (possibly warm-hot intergalactic medium (WHIM)) interacting, via inverse Compton, scattering with the CMB. © 2006 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.newar.2006.11.040

DO - 10.1016/j.newar.2006.11.040

M3 - Article

VL - 51

SP - 374

EP - 380

JO - New Astronomy Reviews

JF - New Astronomy Reviews

IS - 3-4

ER -

SZ effect from Corona Borealis supercluster

Abstract

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