Detection prospects for high energy neutrino sources from the anisotropic matter distribution in the local universe

Philipp Mertsch; Mohamed Rameez; Irene Tamborra

doi:10.1088/1475-7516/2017/03/011

Detection prospects for high energy neutrino sources from the anisotropic matter distribution in the local universe

Philipp Mertsch, Mohamed Rameez, Irene Tamborra

15 Citations (Scopus)

Abstract

Constraints on the number and luminosity of the sources of the cosmic neutrinos detected by IceCube have been set by targeted searches for point sources. We set complementary constraints by using the 2MASS Redshift Survey (2MRS) catalogue, which maps the matter distribution of the local Universe. Assuming that the distribution of the neutrino sources follows that of matter, we look for correlations between ''warm'' spots on the IceCube skymap and the 2MRS matter distribution. Through Monte Carlo simulations of the expected number of neutrino multiplets and careful modelling of the detector performance (including that of IceCube-Gen2), we demonstrate that sources with local density exceeding 10^-6 Mpc^-3 and neutrino luminosity L_ν ≲ 10⁴² erg s^-1 (10⁴¹ erg s^-1) will be efficiently revealed by our method using IceCube (IceCube-Gen2). At low luminosities such as will be probed by IceCube-Gen2, the sensitivity of this analysis is superior to requiring statistically significant direct observation of a point source.

Original language	English
Article number	011
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2017
Issue number	03
ISSN	1475-7516
DOIs	https://doi.org/10.1088/1475-7516/2017/03/011
Publication status	Published - 7 Mar 2017

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Mertsch_2017_J._Cosmol._Astropart._Phys._2017_011Final published version, 1.07 MB

http://arxiv.org/pdf/1612.07311Licence: Other

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title = "Detection prospects for high energy neutrino sources from the anisotropic matter distribution in the local universe",

abstract = "Constraints on the number and luminosity of the sources of the cosmic neutrinos detected by IceCube have been set by targeted searches for point sources. We set complementary constraints by using the 2MASS Redshift Survey (2MRS) catalogue, which maps the matter distribution of the local Universe. Assuming that the distribution of the neutrino sources follows that of matter, we look for correlations between ''warm'' spots on the IceCube skymap and the 2MRS matter distribution. Through Monte Carlo simulations of the expected number of neutrino multiplets and careful modelling of the detector performance (including that of IceCube-Gen2), we demonstrate that sources with local density exceeding 10-6 Mpc-3 and neutrino luminosity Lν ≲ 1042 erg s-1 (1041 erg s-1) will be efficiently revealed by our method using IceCube (IceCube-Gen2). At low luminosities such as will be probed by IceCube-Gen2, the sensitivity of this analysis is superior to requiring statistically significant direct observation of a point source.",

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AU - Mertsch, Philipp

AU - Rameez, Mohamed

AU - Tamborra, Irene

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PY - 2017/3/7

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N2 - Constraints on the number and luminosity of the sources of the cosmic neutrinos detected by IceCube have been set by targeted searches for point sources. We set complementary constraints by using the 2MASS Redshift Survey (2MRS) catalogue, which maps the matter distribution of the local Universe. Assuming that the distribution of the neutrino sources follows that of matter, we look for correlations between ''warm'' spots on the IceCube skymap and the 2MRS matter distribution. Through Monte Carlo simulations of the expected number of neutrino multiplets and careful modelling of the detector performance (including that of IceCube-Gen2), we demonstrate that sources with local density exceeding 10-6 Mpc-3 and neutrino luminosity Lν ≲ 1042 erg s-1 (1041 erg s-1) will be efficiently revealed by our method using IceCube (IceCube-Gen2). At low luminosities such as will be probed by IceCube-Gen2, the sensitivity of this analysis is superior to requiring statistically significant direct observation of a point source.

AB - Constraints on the number and luminosity of the sources of the cosmic neutrinos detected by IceCube have been set by targeted searches for point sources. We set complementary constraints by using the 2MASS Redshift Survey (2MRS) catalogue, which maps the matter distribution of the local Universe. Assuming that the distribution of the neutrino sources follows that of matter, we look for correlations between ''warm'' spots on the IceCube skymap and the 2MRS matter distribution. Through Monte Carlo simulations of the expected number of neutrino multiplets and careful modelling of the detector performance (including that of IceCube-Gen2), we demonstrate that sources with local density exceeding 10-6 Mpc-3 and neutrino luminosity Lν ≲ 1042 erg s-1 (1041 erg s-1) will be efficiently revealed by our method using IceCube (IceCube-Gen2). At low luminosities such as will be probed by IceCube-Gen2, the sensitivity of this analysis is superior to requiring statistically significant direct observation of a point source.

KW - astro-ph.HE

KW - astro-ph.CO

KW - hep-ph

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DO - 10.1088/1475-7516/2017/03/011

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JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

IS - 03

M1 - 011

ER -

Detection prospects for high energy neutrino sources from the anisotropic matter distribution in the local universe

Abstract

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