Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

A. Acharyya; A. Adelfio; M. Ajello; L. Baldini; C. Bartolini; D. Bastieri; J. Becerra Gonzalez; R. Bellazzini; B. Berenji; E. Bissaldi; R. D. Blandford; R. Bonino; E. Bottacini; S. Buson; R. A. Cameron; P. A. Caraveo; F. Casaburo; F. Casini; E. Cavazzuti; D. Cerasole; N. Cibrario; S. Ciprini; G. Cozzolongo; P. Cristarella Orestano; F. Cuna; A. Cuoco; S. Cutini; F. D’Ammando; D. Depalo; S. W. Digel; N. Di Lalla; L. Di Venere; A. Domínguez; A. Fiori; Y. Fukazawa; P. Fusco; F. Gargano; C. Gasbarra; D. Gasparrini; S. Germani; F. Giacchino; N. Giglietto; M. Giliberti; F. Giordano; M. Giroletti; S. Guiriec; R. Gupta; M. Hashizume; E. Hays; J. W. Hewitt; A. Holzmann Airasca; D. Horan; X. Hou; T. Kayanoki; M. Kuss; S. Larsson; A. Laviron; J. Li; A. Liguori; I. Liodakis; P. Loizzo; F. Longo; F. Loparco; S. López Pérez; L. Lorusso; M. N. Lovellette; P. Lubrano; S. Maldera; A. Manfreda; G. Martí-Devesa; R. Martinelli; M. N. Mazziotta; J. E. McEnery; I. Mereu; M. Michailidis; P. F. Michelson; N. Mirabal; T. Mizuno; P. Monti-Guarnieri; M. E. Monzani; A. Morselli; I. V. Moskalenko; M. Negro; N. Omodei; E. Orlando; J. F. Ormes; D. Paneque; G. Panzarini; M. Persic; M. Pesce-Rollins; V. Petrosian; R. Pillera; G. Principe; S. Rainò; R. Rando; B. Rani; M. Razzano; A. Reimer; O. Reimer; M. Sánchez-Conde; P. M. Saz Parkinson; D. Serini; C. Sgrò; E. J. Siskind; P. Spinelli; D. Tak; L. Tibaldo; D. F. Torres; J. Valverde; Z. Wadiasingh; W. Zhang

doi:10.3847/2041-8213/adef4d

Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

A. Acharyya
, A. Adelfio
, M. Ajello
, L. Baldini
, C. Bartolini
, D. Bastieri
, J. Becerra Gonzalez
, R. Bellazzini
, B. Berenji
, E. Bissaldi
, R. D. Blandford
, R. Bonino
, E. Bottacini
, S. Buson
, R. A. Cameron
, P. A. Caraveo
, F. Casaburo
, F. Casini
, E. Cavazzuti
, D. Cerasole

N. Cibrario, S. Ciprini, G. Cozzolongo, P. Cristarella Orestano, F. Cuna, A. Cuoco, S. Cutini, F. D’Ammando, D. Depalo, S. W. Digel, N. Di Lalla, L. Di Venere, A. Domínguez, A. Fiori, Y. Fukazawa, P. Fusco, F. Gargano, C. Gasbarra, D. Gasparrini, S. Germani, F. Giacchino, N. Giglietto, M. Giliberti, F. Giordano, M. Giroletti, S. Guiriec, R. Gupta, M. Hashizume, E. Hays, J. W. Hewitt, A. Holzmann Airasca, D. Horan, X. Hou, T. Kayanoki, M. Kuss, S. Larsson, A. Laviron, J. Li, A. Liguori, I. Liodakis, P. Loizzo, F. Longo, F. Loparco, S. López Pérez, L. Lorusso, M. N. Lovellette, P. Lubrano, S. Maldera, A. Manfreda, G. Martí-Devesa, R. Martinelli, M. N. Mazziotta, J. E. McEnery, I. Mereu, M. Michailidis, P. F. Michelson, N. Mirabal, T. Mizuno, P. Monti-Guarnieri, M. E. Monzani, A. Morselli, I. V. Moskalenko, M. Negro, N. Omodei, E. Orlando, J. F. Ormes, D. Paneque, G. Panzarini, M. Persic, M. Pesce-Rollins, V. Petrosian, R. Pillera, G. Principe, S. Rainò, R. Rando, B. Rani, M. Razzano, A. Reimer, O. Reimer, M. Sánchez-Conde, P. M. Saz Parkinson, D. Serini, C. Sgrò, E. J. Siskind, P. Spinelli, D. Tak, L. Tibaldo, D. F. Torres, J. Valverde, Z. Wadiasingh, W. Zhang

Physics

Università di Pisa, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Clemson University
Dipartimento di Fisica Enrico Fermi, Università di Pisa
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
Università di Trento
University of Padova
Universidad de La Laguna, Dpto. Astrofísica
California State University-Los Angeles
Dipartimento di Fisica M. Merlin, Università e Del Politecnico di Bari
Dipartimento di Fisica, Università Degli Studi di Torino
Deutsches Elektronen Synchrotron DESY
Institut für Theoretische Physik and Astrophysik, Universität Würzburg
INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica Milano
Italian Space Agency
Dipartimento di Fisica, Università Degli Studi di Perugia
Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics
INAF Istituto di Radioastronomia, I-40129 Bologna
Grupo de Altas Energías, Universidad Complutense de Madrid
Hiroshima University
Univ. “Tor Vergata”
The George Washington University
NASA Goddard Space Flight Center
Laboratoire Leprince-Ringuet, École Polytechnique, CNRS/IN2P3
Yunnan Observatories
KTH Royal Institute of Technology
Royal Institute of Technology and Stockholm University
NASA Postdoctoral Program
Dipartimento di Fisica, Università di Trieste
University of Maryland Baltimore County
Louisiana State University
University of Denver
Max-Planck-Institut für Physik
INAF - Osservatorio Astronomico di Padova
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck
Departamento de Física Teórica, Universidad Autónoma de Madrid
University of California at Santa Cruz
NYCB Real-Time Computing Inc.
Seoul National University
GAHEC, Université de Toulouse, UPS-OMP, IRAP
Institució Catalana de Recerca i Estudis Avan ats (ICREA)
Institute of Space Sciences (ICE
Institut d'Estudis Espacials de Catalunya (IEEC)

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

Original language	English
Article number	L16
Pages (from-to)	L16
Journal	Astrophysical Journal Letters
Volume	989
Issue number	1
DOIs	https://doi.org/10.3847/2041-8213/adef4d
State	Published - Oct 2025

ASJC Scopus Subject Areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.3847/2041-8213/adef4d

Cite this

Acharyya, A., Adelfio, A., Ajello, M., Baldini, L., Bartolini, C., Bastieri, D., Becerra Gonzalez, J., Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Buson, S., Cameron, R. A., Caraveo, P. A., Casaburo, F., Casini, F., Cavazzuti, E., ... Zhang, W. (2025). Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT. Astrophysical Journal Letters, 989(1), L16. Article L16. https://doi.org/10.3847/2041-8213/adef4d

Acharyya, A, Adelfio, A, Ajello, M, Baldini, L, Bartolini, C, Bastieri, D, Becerra Gonzalez, J, Bellazzini, R, Berenji, B, Bissaldi, E, Blandford, RD, Bonino, R, Bottacini, E, Buson, S, Cameron, RA, Caraveo, PA, Casaburo, F, Casini, F, Cavazzuti, E, Cerasole, D, Cibrario, N, Ciprini, S, Cozzolongo, G, Cristarella Orestano, P, Cuna, F, Cuoco, A, Cutini, S, D’Ammando, F, Depalo, D, Digel, SW, Di Lalla, N, Di Venere, L, Domínguez, A, Fiori, A, Fukazawa, Y, Fusco, P, Gargano, F, Gasbarra, C, Gasparrini, D, Germani, S, Giacchino, F, Giglietto, N, Giliberti, M, Giordano, F, Giroletti, M, Guiriec, S, Gupta, R, Hashizume, M, Hays, E, Hewitt, JW, Holzmann Airasca, A, Horan, D, Hou, X, Kayanoki, T, Kuss, M, Larsson, S, Laviron, A, Li, J, Liguori, A, Liodakis, I, Loizzo, P, Longo, F, Loparco, F, López Pérez, S, Lorusso, L, Lovellette, MN, Lubrano, P, Maldera, S, Manfreda, A, Martí-Devesa, G, Martinelli, R, Mazziotta, MN, McEnery, JE, Mereu, I, Michailidis, M, Michelson, PF, Mirabal, N, Mizuno, T, Monti-Guarnieri, P, Monzani, ME, Morselli, A, Moskalenko, IV, Negro, M, Omodei, N, Orlando, E, Ormes, JF, Paneque, D, Panzarini, G, Persic, M, Pesce-Rollins, M, Petrosian, V, Pillera, R, Principe, G, Rainò, S, Rando, R, Rani, B, Razzano, M, Reimer, A, Reimer, O, Sánchez-Conde, M, Saz Parkinson, PM, Serini, D, Sgrò, C, Siskind, EJ, Spinelli, P, Tak, D, Tibaldo, L, Torres, DF, Valverde, J, Wadiasingh, Z & Zhang, W 2025, 'Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT', Astrophysical Journal Letters, vol. 989, no. 1, L16, pp. L16. https://doi.org/10.3847/2041-8213/adef4d

@article{116f1f58a2ee4c199991c228d5f0f22d,

title = "Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT",

author = "A. Acharyya and A. Adelfio and M. Ajello and L. Baldini and C. Bartolini and D. Bastieri and \{Becerra Gonzalez\}, J. and R. Bellazzini and B. Berenji and E. Bissaldi and Blandford, \{R. D.\} and R. Bonino and E. Bottacini and S. Buson and Cameron, \{R. A.\} and Caraveo, \{P. A.\} and F. Casaburo and F. Casini and E. Cavazzuti and D. Cerasole and N. Cibrario and S. Ciprini and G. Cozzolongo and \{Cristarella Orestano\}, P. and F. Cuna and A. Cuoco and S. Cutini and F. D{\textquoteright}Ammando and D. Depalo and Digel, \{S. W.\} and \{Di Lalla\}, N. and \{Di Venere\}, L. and A. Dom{\'i}nguez and A. Fiori and Y. Fukazawa and P. Fusco and F. Gargano and C. Gasbarra and D. Gasparrini and S. Germani and F. Giacchino and N. Giglietto and M. Giliberti and F. Giordano and M. Giroletti and S. Guiriec and R. Gupta and M. Hashizume and E. Hays and Hewitt, \{J. W.\} and \{Holzmann Airasca\}, A. and D. Horan and X. Hou and T. Kayanoki and M. Kuss and S. Larsson and A. Laviron and J. Li and A. Liguori and I. Liodakis and P. Loizzo and F. Longo and F. Loparco and \{L{\'o}pez P{\'e}rez\}, S. and L. Lorusso and Lovellette, \{M. N.\} and P. Lubrano and S. Maldera and A. Manfreda and G. Mart{\'i}-Devesa and R. Martinelli and Mazziotta, \{M. N.\} and McEnery, \{J. E.\} and I. Mereu and M. Michailidis and Michelson, \{P. F.\} and N. Mirabal and T. Mizuno and P. Monti-Guarnieri and Monzani, \{M. E.\} and A. Morselli and Moskalenko, \{I. V.\} and M. Negro and N. Omodei and E. Orlando and Ormes, \{J. F.\} and D. Paneque and G. Panzarini and M. Persic and M. Pesce-Rollins and V. Petrosian and R. Pillera and G. Principe and S. Rain{\`o} and R. Rando and B. Rani and M. Razzano and A. Reimer and O. Reimer and M. S{\'a}nchez-Conde and \{Saz Parkinson\}, \{P. M.\} and D. Serini and C. Sgr{\`o} and Siskind, \{E. J.\} and P. Spinelli and D. Tak and L. Tibaldo and Torres, \{D. F.\} and J. Valverde and Z. Wadiasingh and W. Zhang",

note = "Publisher Copyright: {\textcopyright} 2025. The Author(s). Published by the American Astronomical Society.",

year = "2025",

month = oct,

doi = "10.3847/2041-8213/adef4d",

language = "English",

volume = "989",

pages = "L16",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

number = "1",

}

TY - JOUR

T1 - Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

AU - Acharyya, A.

AU - Adelfio, A.

AU - Ajello, M.

AU - Baldini, L.

AU - Bartolini, C.

AU - Bastieri, D.

AU - Becerra Gonzalez, J.

AU - Bellazzini, R.

AU - Berenji, B.

AU - Bissaldi, E.

AU - Blandford, R. D.

AU - Bonino, R.

AU - Bottacini, E.

AU - Buson, S.

AU - Cameron, R. A.

AU - Caraveo, P. A.

AU - Casaburo, F.

AU - Casini, F.

AU - Cavazzuti, E.

AU - Cerasole, D.

AU - Cibrario, N.

AU - Ciprini, S.

AU - Cozzolongo, G.

AU - Cristarella Orestano, P.

AU - Cuna, F.

AU - Cuoco, A.

AU - Cutini, S.

AU - D’Ammando, F.

AU - Depalo, D.

AU - Digel, S. W.

AU - Di Lalla, N.

AU - Di Venere, L.

AU - Domínguez, A.

AU - Fiori, A.

AU - Fukazawa, Y.

AU - Fusco, P.

AU - Gargano, F.

AU - Gasbarra, C.

AU - Gasparrini, D.

AU - Germani, S.

AU - Giacchino, F.

AU - Giglietto, N.

AU - Giliberti, M.

AU - Giordano, F.

AU - Giroletti, M.

AU - Guiriec, S.

AU - Gupta, R.

AU - Hashizume, M.

AU - Hays, E.

AU - Hewitt, J. W.

AU - Holzmann Airasca, A.

AU - Horan, D.

AU - Hou, X.

AU - Kayanoki, T.

AU - Kuss, M.

AU - Larsson, S.

AU - Laviron, A.

AU - Li, J.

AU - Liguori, A.

AU - Liodakis, I.

AU - Loizzo, P.

AU - Longo, F.

AU - Loparco, F.

AU - López Pérez, S.

AU - Lorusso, L.

AU - Lovellette, M. N.

AU - Lubrano, P.

AU - Maldera, S.

AU - Manfreda, A.

AU - Martí-Devesa, G.

AU - Martinelli, R.

AU - Mazziotta, M. N.

AU - McEnery, J. E.

AU - Mereu, I.

AU - Michailidis, M.

AU - Michelson, P. F.

AU - Mirabal, N.

AU - Mizuno, T.

AU - Monti-Guarnieri, P.

AU - Monzani, M. E.

AU - Morselli, A.

AU - Moskalenko, I. V.

AU - Negro, M.

AU - Omodei, N.

AU - Orlando, E.

AU - Ormes, J. F.

AU - Paneque, D.

AU - Panzarini, G.

AU - Persic, M.

AU - Pesce-Rollins, M.

AU - Petrosian, V.

AU - Pillera, R.

AU - Principe, G.

AU - Rainò, S.

AU - Rando, R.

AU - Rani, B.

AU - Razzano, M.

AU - Reimer, A.

AU - Reimer, O.

AU - Sánchez-Conde, M.

AU - Saz Parkinson, P. M.

AU - Serini, D.

AU - Sgrò, C.

AU - Siskind, E. J.

AU - Spinelli, P.

AU - Tak, D.

AU - Tibaldo, L.

AU - Torres, D. F.

AU - Valverde, J.

AU - Wadiasingh, Z.

AU - Zhang, W.

PY - 2025/10

Y1 - 2025/10

UR - https://www.mendeley.com/catalogue/f65f4353-b36a-33c6-a432-ade9c0b59dc5/

U2 - 10.3847/2041-8213/adef4d

DO - 10.3847/2041-8213/adef4d

M3 - Article

AN - SCOPUS:105013034741

SN - 2041-8205

VL - 989

SP - L16

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L16

ER -

Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

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