Detection of cross-correlation between gravitational lensing and gamma 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. Garcia-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. Sanchez; 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 gamma 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. Garcia-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. Sanchez, 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

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

In recent years, many gamma-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 gamma rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use the Dark Energy Survey Y1 weak lensing catalogue and the Fermi Large Area Telescope 9-year gamma-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localised at small angular scales and high gamma-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	24
Journal	Physical Review Letters
Volume	124
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.124.101102
Publication status	Published - 9 Mar 2020

Keywords / Materials (for Non-textual outputs)

astro-ph.CO
astro-ph.HE

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10.1103/PhysRevLett.124.101102Licence: Creative Commons: Attribution (CC-BY)

1907.13484Accepted author manuscript, 4.29 MBLicence: Creative Commons: Attribution (CC-BY)

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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., Kind, M. C., Annis, J., ... Zhang, Y. (2020). Detection of cross-correlation between gravitational lensing and gamma rays. Physical Review Letters, 124(10), Article 101102. https://doi.org/10.1103/PhysRevLett.124.101102

@article{5a24ba201a234e95a7d201cb4d3c695a,

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

abstract = " In recent years, many gamma-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 gamma rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use the Dark Energy Survey Y1 weak lensing catalogue and the Fermi Large Area Telescope 9-year gamma-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localised at small angular scales and high gamma-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 = "astro-ph.CO, astro-ph.HE",

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

note = "24 pages, 10 figures, v2: text re-arranged, typos corrected, slight improvement in the detection significance, matching version accepted for publication in PRL",

year = "2020",

month = mar,

day = "9",

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, Kind, MC, Annis, J, Avila, S, Bertin, E, Brooks, D, Burke, DL, Rosell, AC, Carretero, J, Castander, FJ, Costanzi, M, Costa, LND, Vicente, JD, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Everett, S, Flaugher, B, Fosalba, P, Garcia-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, Sanchez, 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 gamma 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 gamma 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 - Kind, M. Carrasco

AU - Annis, J.

AU - Avila, S.

AU - Bertin, E.

AU - Brooks, D.

AU - Burke, D. L.

AU - Rosell, A. Carnero

AU - Carretero, J.

AU - Castander, F. J.

AU - Costanzi, M.

AU - Costa, L. N. da

AU - Vicente, J. De

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Everett, S.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Garcia-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 - Sanchez, 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.

N1 - 24 pages, 10 figures, v2: text re-arranged, typos corrected, slight improvement in the detection significance, matching version accepted for publication in PRL

PY - 2020/3/9

Y1 - 2020/3/9

N2 - In recent years, many gamma-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 gamma rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use the Dark Energy Survey Y1 weak lensing catalogue and the Fermi Large Area Telescope 9-year gamma-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localised at small angular scales and high gamma-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 gamma-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 gamma rays and the distribution of mass in the Universe probed by weak gravitational lensing. We use the Dark Energy Survey Y1 weak lensing catalogue and the Fermi Large Area Telescope 9-year gamma-ray data, obtaining a signal-to-noise ratio of 5.3. The signal is mostly localised at small angular scales and high gamma-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 - astro-ph.CO

KW - astro-ph.HE

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 gamma rays

Abstract

Keywords / Materials (for Non-textual outputs)

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