Detection of cross-correlation between gravitational lensing and γ rays

S. Ammazzalorso; D. Gruen; M. Regis; S. Camera; S. Ando; N. Fornengo; K. Bechtol; S. L. Bridle; A. Choi; T. F. Eifler; M. Gatti; N. MacCrann; Y. Omori; S. Samuroff; E. Sheldon; M. A. Troxel; J. Zuntz; M. Carrasco Kind; J. Annis; S. Avila; E. Bertin; D. Brooks; D. L. Burke; A. Carnero Rosell; J. Carretero; F. J. Castander; M. Costanzi; L. N. da Costa; J. De Vicente; S. Desai; H. T. Diehl; J. P. Dietrich; P. Doel; S. Everett; B. Flaugher; P. Fosalba; J. García-Bellido; E. Gaztanaga; D. W. Gerdes; T. Giannantonio; D. A. Goldstein; R. A. Gruendl; G. Gutierrez; D. L. Hollowood; K. Honscheid; D. J. James; M. Jarvis; T. Jeltema; S. Kent; N. Kuropatkin; O. Lahav; T. S. Li; M. Lima; M. A. G. Maia; J. L. Marshall; P. Melchior; F. Menanteau; R. Miquel; R. L. C. Ogando; A. Palmese; A. A. Plazas; A. K. Romer; A. Roodman; E. S. Rykoff; C. Sánchez; E. Sanchez; V. Scarpine; S. Serrano; I. Sevilla-Noarbe; M. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; D. Thomas; V. Vikram; Y. Zhang

doi:10.1103/PhysRevLett.124.101102

Detection of cross-correlation between gravitational lensing and γ rays

S. Ammazzalorso, D. Gruen, M. Regis, S. Camera, S. Ando, N. Fornengo, K. Bechtol, S. L. Bridle, A. Choi, T. F. Eifler, M. Gatti, N. MacCrann, Y. Omori, S. Samuroff, E. Sheldon, M. A. Troxel, J. Zuntz, M. Carrasco Kind, J. Annis, S. AvilaE. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, J. Carretero, F. J. Castander, M. Costanzi, L. N. da Costa, J. De Vicente, S. Desai, H. T. Diehl, J. P. Dietrich, P. Doel, S. Everett, B. Flaugher, P. Fosalba, J. García-Bellido, E. Gaztanaga, D. W. Gerdes, T. Giannantonio, D. A. Goldstein, R. A. Gruendl, G. Gutierrez, D. L. Hollowood, K. Honscheid, D. J. James, M. Jarvis, T. Jeltema, S. Kent, N. Kuropatkin, O. Lahav, T. S. Li, M. Lima, M. A. G. Maia, J. L. Marshall, P. Melchior, F. Menanteau, R. Miquel, R. L. C. Ogando, A. Palmese, A. A. Plazas, A. K. Romer, A. Roodman, E. S. Rykoff, C. Sánchez, E. Sanchez, V. Scarpine, S. Serrano, I. Sevilla-Noarbe, M. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, V. Vikram, Y. Zhang

Institute of Cosmology & Gravitation

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Abstract

In recent years, many γ-ray sources have been identified, yet the unresolved component hosts valuable information on the faintest emission. In order to extract it, a cross-correlation with gravitational tracers of matter in the Universe has been shown to be a promising tool. We report here the first identification of a cross-correlation signal between γ rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use data from the Dark Energy Survey Y1 weak lensing data and the Fermi Large Area Telescope 9-yr γ-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localized at small angular scales and high γ-ray energies, with a hint of correlation at extended separation. Blazar emission is likely the origin of the small-scale effect. We investigate implications of the large-scale component in terms of astrophysical sources and particle dark matter emission.

Original language	English
Article number	101102
Number of pages	11
Journal	Physical Review Letters
Volume	124
Issue number	10
Early online date	9 Mar 2020
DOIs	https://doi.org/10.1103/PhysRevLett.124.101102
Publication status	Published - 13 Mar 2020

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10.1103/PhysRevLett.124.101102

PhysRevLett.124.101102Final published version, 2.35 MBLicence: CC BY

Data availability statement for 'Detection of cross-correlation between gravitational lensing and γ rays'.
Thomas, D. (Creator), American Physical Society, 9 Mar 2020
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Ammazzalorso, S., Gruen, D., Regis, M., Camera, S., Ando, S., Fornengo, N., Bechtol, K., Bridle, S. L., Choi, A., Eifler, T. F., Gatti, M., MacCrann, N., Omori, Y., Samuroff, S., Sheldon, E., Troxel, M. A., Zuntz, J., Carrasco Kind, M., Annis, J., ... Zhang, Y. (2020). Detection of cross-correlation between gravitational lensing and γ rays. Physical Review Letters, 124(10), Article 101102. https://doi.org/10.1103/PhysRevLett.124.101102

@article{3259bad029744da88cc85e64b380b22a,

title = "Detection of cross-correlation between gravitational lensing and γ rays",

abstract = "In recent years, many γ-ray sources have been identified, yet the unresolved component hosts valuable information on the faintest emission. In order to extract it, a cross-correlation with gravitational tracers of matter in the Universe has been shown to be a promising tool. We report here the first identification of a cross-correlation signal between γ rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use data from the Dark Energy Survey Y1 weak lensing data and the Fermi Large Area Telescope 9-yr γ-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localized at small angular scales and high γ-ray energies, with a hint of correlation at extended separation. Blazar emission is likely the origin of the small-scale effect. We investigate implications of the large-scale component in terms of astrophysical sources and particle dark matter emission.",

keywords = "RCUK, STFC",

author = "S. Ammazzalorso and D. Gruen and M. Regis and S. Camera and S. Ando and N. Fornengo and K. Bechtol and S. L. Bridle and A. Choi and T. F. Eifler and M. Gatti and N. MacCrann and Y. Omori and S. Samuroff and E. Sheldon and M. A. Troxel and J. Zuntz and {Carrasco Kind}, M. and J. Annis and S. Avila and E. Bertin and D. Brooks and D. L. Burke and {Carnero Rosell}, A. and J. Carretero and F. J. Castander and M. Costanzi and {da Costa}, L. N. and {De Vicente}, J. and S. Desai and H. T. Diehl and J. P. Dietrich and P. Doel and S. Everett and B. Flaugher and P. Fosalba and J. Garc{\'i}a-Bellido and E. Gaztanaga and D. W. Gerdes and T. Giannantonio and D. A. Goldstein and R. A. Gruendl and G. Gutierrez and D. L. Hollowood and K. Honscheid and D. J. James and M. Jarvis and T. Jeltema and S. Kent and N. Kuropatkin and O. Lahav and T. S. Li and M. Lima and M. A. G. Maia and J. L. Marshall and P. Melchior and F. Menanteau and R. Miquel and R. L. C. Ogando and A. Palmese and A. A. Plazas and A. K. Romer and A. Roodman and E. S. Rykoff and C. S{\'a}nchez and E. Sanchez and V. Scarpine and S. Serrano and I. Sevilla-Noarbe and M. Smith and M. Soares-Santos and F. Sobreira and E. Suchyta and M. E. C. Swanson and G. Tarle and D. Thomas and V. Vikram and Y. Zhang",

year = "2020",

month = mar,

day = "13",

doi = "10.1103/PhysRevLett.124.101102",

language = "English",

volume = "124",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

Ammazzalorso, S, Gruen, D, Regis, M, Camera, S, Ando, S, Fornengo, N, Bechtol, K, Bridle, SL, Choi, A, Eifler, TF, Gatti, M, MacCrann, N, Omori, Y, Samuroff, S, Sheldon, E, Troxel, MA, Zuntz, J, Carrasco Kind, M, Annis, J, Avila, S, Bertin, E, Brooks, D, Burke, DL, Carnero Rosell, A, Carretero, J, Castander, FJ, Costanzi, M, da Costa, LN, De Vicente, J, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Everett, S, Flaugher, B, Fosalba, P, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Goldstein, DA, Gruendl, RA, Gutierrez, G, Hollowood, DL, Honscheid, K, James, DJ, Jarvis, M, Jeltema, T, Kent, S, Kuropatkin, N, Lahav, O, Li, TS, Lima, M, Maia, MAG, Marshall, JL, Melchior, P, Menanteau, F, Miquel, R, Ogando, RLC, Palmese, A, Plazas, AA, Romer, AK, Roodman, A, Rykoff, ES, Sánchez, C, Sanchez, E, Scarpine, V, Serrano, S, Sevilla-Noarbe, I, Smith, M, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D, Vikram, V & Zhang, Y 2020, 'Detection of cross-correlation between gravitational lensing and γ rays', Physical Review Letters, vol. 124, no. 10, 101102. https://doi.org/10.1103/PhysRevLett.124.101102

TY - JOUR

T1 - Detection of cross-correlation between gravitational lensing and γ rays

AU - Ammazzalorso, S.

AU - Gruen, D.

AU - Regis, M.

AU - Camera, S.

AU - Ando, S.

AU - Fornengo, N.

AU - Bechtol, K.

AU - Bridle, S. L.

AU - Choi, A.

AU - Eifler, T. F.

AU - Gatti, M.

AU - MacCrann, N.

AU - Omori, Y.

AU - Samuroff, S.

AU - Sheldon, E.

AU - Troxel, M. A.

AU - Zuntz, J.

AU - Carrasco Kind, M.

AU - Annis, J.

AU - Avila, S.

AU - Bertin, E.

AU - Brooks, D.

AU - Burke, D. L.

AU - Carnero Rosell, A.

AU - Carretero, J.

AU - Castander, F. J.

AU - Costanzi, M.

AU - da Costa, L. N.

AU - De Vicente, J.

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Everett, S.

AU - Flaugher, B.

AU - Fosalba, P.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Giannantonio, T.

AU - Goldstein, D. A.

AU - Gruendl, R. A.

AU - Gutierrez, G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - James, D. J.

AU - Jarvis, M.

AU - Jeltema, T.

AU - Kent, S.

AU - Kuropatkin, N.

AU - Lahav, O.

AU - Li, T. S.

AU - Lima, M.

AU - Maia, M. A. G.

AU - Marshall, J. L.

AU - Melchior, P.

AU - Menanteau, F.

AU - Miquel, R.

AU - Ogando, R. L. C.

AU - Palmese, A.

AU - Plazas, A. A.

AU - Romer, A. K.

AU - Roodman, A.

AU - Rykoff, E. S.

AU - Sánchez, C.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Serrano, S.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E. C.

AU - Tarle, G.

AU - Thomas, D.

AU - Vikram, V.

AU - Zhang, Y.

PY - 2020/3/13

Y1 - 2020/3/13

N2 - In recent years, many γ-ray sources have been identified, yet the unresolved component hosts valuable information on the faintest emission. In order to extract it, a cross-correlation with gravitational tracers of matter in the Universe has been shown to be a promising tool. We report here the first identification of a cross-correlation signal between γ rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use data from the Dark Energy Survey Y1 weak lensing data and the Fermi Large Area Telescope 9-yr γ-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localized at small angular scales and high γ-ray energies, with a hint of correlation at extended separation. Blazar emission is likely the origin of the small-scale effect. We investigate implications of the large-scale component in terms of astrophysical sources and particle dark matter emission.

AB - In recent years, many γ-ray sources have been identified, yet the unresolved component hosts valuable information on the faintest emission. In order to extract it, a cross-correlation with gravitational tracers of matter in the Universe has been shown to be a promising tool. We report here the first identification of a cross-correlation signal between γ rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use data from the Dark Energy Survey Y1 weak lensing data and the Fermi Large Area Telescope 9-yr γ-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localized at small angular scales and high γ-ray energies, with a hint of correlation at extended separation. Blazar emission is likely the origin of the small-scale effect. We investigate implications of the large-scale component in terms of astrophysical sources and particle dark matter emission.

KW - RCUK

KW - STFC

U2 - 10.1103/PhysRevLett.124.101102

DO - 10.1103/PhysRevLett.124.101102

M3 - Article

SN - 0031-9007

VL - 124

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 101102

ER -

Detection of cross-correlation between gravitational lensing and γ rays

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Data availability statement for 'Detection of cross-correlation between gravitational lensing and γ rays'.

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