RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

Gamma-rays
Neutrinos
Particle Acceleration : Non Thermal
High Energy Phenomena

How to Cite

Hadronic Clues in Quasars Caught by FERMI-LAT. (2026). Revista Mexicana De Astronomía Y Astrofísica, 62(01), 11-27. https://doi.org/10.22201/ia.30618649e.2026.62.01.7508

Abstract

This work explores whether hadronic processes could be responsible for the high-energy emission seen in quasars identified by the Large Area Telescope (LAT) instrument aboard the Fermi satellite. In contrast to purely leptonic models, the work investigates whether hadronic mechanisms can explain the observed gamma-ray spectra by analyzing the spectral energy distributions (SEDs) of a chosen sample of FSRQs (Flat Spectrum Radio Quasars). By incorporating both hadronic and leptonic components into their multi-wavelength modeling, we evaluate the model's feasibility to simultaneously describe the data collected by Fermi-LAT and neutrinos detected by IceCube. According to the results, a hadronic contribution would be required to explain the SED of quasars detected by Fermi-LAT. However, their contribution to the neutrino flux detected by IceCube remains understated.

Resumen

Este trabajo explora si los procesos hadrónicos podrían ser responsables de la emisión de alta energía observada en los cuásares identificados por el instrumento Large Area Telescope (LAT) a bordo del Satélite Fermi. En contraste con los modelos puramente leptónicos, el trabajo investiga si los mecanismos hadrónicos pueden explicar los espectros de rayos gamma observados, analizando las distribuciones espectrales de energía (SEDs) de una muestra escogida de FSRQs (Flat Spectrum Radio Quasars). Al incorporar componentes hadrónicos y leptónicos en su modelización multi-longitud de onda, evaluamos la viabilidad del modelo para describir simultáneamente los datos recogidos por Fermi-LAT y los neutrinos detectados por IceCube. Según los resultados, sería necesaria una contribución hadrónica para explicar la SED de los cuásares detectados por Fermi-LAT. Sin embargo, su contribución al flujo de neutrinos detectado por IceCube sigue siendo subestimada.

References

Abbasi, R., Ackermann, M., Adams, J., et al. 2023, ApJS, 269, 25, https://doi.org/10.3847/1538-4365/acfa95

Abdo, A. A., Ackermann, M., Ajello, M., et al. 2010, ApJ, 715, 429, https://doi.org/10.1088/0004-637X/715/1/429

Abdo, A. A., Ackermann, M., Ajello, M., et al 2011a, ApJ, 727, 129, https://doi.org/10.1088/0004-637X/727/2/129

Abdo, A. A., Ackermann, M., Ajello, M., et al 2011b, ApJ, 736, 131, https://doi.org/10.1088/0004-637X/736/2/131

Abdollahi, S., Acero, F., Ackermann, M., et al. 2020, ApJS, 247, 33, https://doi.org/10.3847/1538-4365/ab6bcb

Abdollahi, S., Acero, F., Baldini, L., et al. 2022, ApJS, 260, 53, https://doi.org/10.3847/1538-4365/ac6751

Ackermann, M., Ajello, M., Baldini, L., et al. 2018, ApJS, 237, 32, https://doi.org/10.3847/1538-4365/aacdf7

Aguilar-Ruiz, E., Fraija, N., & Galván-Gámez, A. 2023a, JHEAp, 38, 1, https://doi.org/10.1016/j.jheap.2023.02.001

Aguilar-Ruiz, E., Fraija, N., & Galván-Gámez, A 2023b, EPJC, 83, 338, https://doi.org/10.1140/epjc/s10052-023-11523-w

Aguilar-Ruiz, E., Fraija, N., Galván-Gámez, A., & Benítez, E. 2022, MNRAS, 512, 1557, https://doi.org/10.1093/mnras/stac591

Aguilar-Ruiz, E., Fraija, N., Joshi, J. C., Galvan-Gamez, A., & de Diego, J. A. 2021, PhRvD, 104, 083013, https://doi.org/10.1103/PhysRevD.104.083013

Aguilar-Ruiz, E., Galván-Gámez, A., & Fraija, N. 2023c, Galaxies, 11, 117, https://doi.org/10.3390/galaxies11060117

Ahn, C. P., Alexandroff, R., Allende Prieto, C., et al. 2012, ApJS, 203, 21, https://doi.org/10.1088/0067-0049/203/2/21

Ajello, M., Angioni, R., Axelsson, M., et al. 2020, ApJ, 892, 105, https://doi.org/10.3847/1538-4357/ab791e

Ajello, M., Baldini, L., Ballet, J., et al. 2022, ApJS, 263, 24, https://doi.org/10.3847/1538-4365/ac9523

Alam, S., Albareti, F. D., Allende Prieto, C., et al. 2015, ApJS, 219, 12, https://doi.org/10.1088/0067-0049/219/1/12

Albareti, F. D., Allende Prieto, C., Almeida, A., et al. 2017, ApJS, 233, 25, https://doi.org/10.3847/1538-4365/aa8992

Allen, J. T., Hewett, P. C., Maddox, N., et al. 2011, MNRAS, 410, 860, https://doi.org/10.1111/j.1365-2966.2010.17489.x

Anjum, M. S., Chen, L., & Gu, M. 2020, ApJ, 898, 48, https://doi.org/10.3847/1538-4357/ab99a1

Atwood, W. B., Abdo, A. A., Ackermann, M., et al. 2009, ApJ, 697, 1071, https://doi.org/10.1088/0004-637X/697/2/1071

Ballet, J., Bruel, P., Burnett, T. H., Lott, B., & The Fermi-LAT collaboration. 2023, https://arxiv.org/abs/2307.12546, https://doi.org/10.48550/arXiv.2307.12546

Ballet, J., Burnett, T. H., Digel, S. W., & Lott, B. 2020, https://arxiv.org/abs/2005.11208, https://doi.org/10.48550/arXiv.2005.11208

Becker, R. H., White, R. L., & Edwards, A. L. 1991, ApJS, 75, 1, https://doi.org/10.1086/191529

Blumenthal, G. R., & Gould, R. J. 1970, RvMP, 42, 237, https://doi.org/10.1103/RevModPhys.42.237

Bose, D., & Rakshit, S. 2021, High Energy Astrophysical Neutrinos (Springer. OCLC), https://doi.org/10.1007/978-3-030-91258-1

Briscioli, A. 2023, Lauree magistrali, Dipartimento di Fisica e Astronomia "Galileo Galilei" - DFA, https://hdl.handle.net/20.500.12608/65401

Celotti, A., & Ghisellini, G. 2008, MNRAS, 385, 283, https://doi.org/10.1111/j.1365-2966.2007.12758.x

Charlot, P., Jacobs, C. S., Gordon, D., et al. 2020, A&A, 644, A159, https://doi.org/10.1051/0004-6361/202038368

Cowan, G., Cranmer, K., Gross, E., & Vitells, O. 2011, EPJC, 71, 1554, https://doi.org/10.1140/epjc/s10052-011-1554-0

D’Abrusco, R., Álvarez Crespo, N., Massaro, F., et al. 2019, ApJS, 242, 4, https://doi.org/10.3847/1538-4365/ab16f4

D’Abrusco, R., Massaro, F., Paggi, A., et al. 2013, ApJS, 206, 12, https://doi.org/10.1088/0067-0049/206/2/12

D’Abrusco, R., Massaro, F., Paggi, A., et al 2014, ApJS, 215, 14, https://doi.org/10.1088/0067-0049/215/1/14

Dermer, C. D., Yan, D., Zhang, L., Finke, J. D., & Lott, B. 2015, ApJ, 809, 174, https://doi.org/10.1088/0004-637X/809/2/174

Dichiara, S., Troja, E., O’Connor, B., et al. 2020, MNRAS, 492, 5011, https://doi.org/10.1093/mnras/staa124

Dong, X. Y., Wu, X.-B., Ai, Y. L., et al. 2018, AJ, 155, 189, https://doi.org/10.3847/1538-3881/aab5ae

Dunlop, J. S., McLure, R. J., Kukula, M. J., et al. 2003, MNRAS, 340, 1095, https://doi.org/10.1046/j.1365-8711.2003.06333.x

Fermi Science Support Development Team. 2019, Fermitools: Fermi Science Tools, Astrophysics Source Code Library, record ascl:1905.011. https://ascl.net/1905.011

Finke, J. D., Dermer, C. D., & Böttcher, M. 2008, ApJ, 686, 181, https://doi.org/10.1086/590900

Foreman-Mackey, D., Hogg, D. W., Lang, D., et al. 2013, PASP, 125, 306, https://doi.org/10.1086/670067

Fraija, N., Aguilar-Ruiz, E., & Galván-Gámez, A. 2020, MNRAS, 497, 5318, https://doi.org/10.1093/mnras/staa2284

Fraija, N., Aguilar-Ruiz, E., Galván-Gámez, A., Marinelli, A., & de Diego, J. A. 2018, MNRAS, 481, 4461, https://doi.org/10.1093/mnras/sty2561

Fraija, N., Benítez, E., Hiriart, D., et al. 2017a, ApJS, 232, 7, https://doi.org/10.3847/1538-4365/aa82cc

Fraija, N., Benítez, E., Hiriart, D., et al 2019, ApJS, 245, 18, https://doi.org/10.3847/1538-4365/ab3f28

Fraija, N., Marinelli, A., Galván-Gámez, A., et al. 2017b, APh, 89, 14, https://doi.org/10.1016/j.astropartphys.2017.01.001

Franceschini, A., & Rodighiero, G. 2017, A&A, 603, A34, https://doi.org/10.1051/0004-6361/201629684

Franceschini, A., Rodighiero, G., & Vaccari, M. 2008, A&A, 487, 837, https://doi.org/10.1051/0004-6361:200809691

Gaisser, T. K., Stanev, T., & Tilav, S. 2013, FrPhy, 8, 748, https://doi.org/10.1007/s11467-013-0319-7

Garrappa, S., Buson, S., Franckowiak, A., et al. 2019, ApJ, 880, 103, https://doi.org/10.3847/1538-4357/ab2ada

Garrappa, S., Buson, S., Sinapius, J., et al. 2022, GCN, 31558, 1

Gattano, C., Lambert, S. B., & Le Bail, K. 2018, A&A, 618, A80, https://doi.org/10.1051/0004-6361/201833430

Germani, S., Tosti, G., Lubrano, P., et al. 2021, MNRAS, 505, 5853, https://doi.org/10.1093/mnras/stab1748

Ghisellini, G. 2016, Galaxies, 4, 36, https://doi.org/10.3390/galaxies4040036

Ghisellini, G., Righi, C., Costamante, L., & Tavecchio, F. 2017, MNRAS, 469, 255, https://doi.org/10.1093/mnras/stx806

Gilmore, R. C., Somerville, R. S., Primack, J. R., et al. 2012, MNRAS, 422, 3189, https://doi.org/10.1111/j.1365-2966.2012.20841.x

Guo, H., Barth, A. J., & Wang, S. 2022, ApJ, 940, 20, https://doi.org/10.3847/1538-4357/ac96ec

Haakonsen, C. B., & Rutledge, R. E. 2009, ApJS, 184, 138, https://doi.org/10.1088/0067-0049/184/1/138

Halzen, F., & Hooper, D. 2002, RPPh, 65, 1025, https://doi.org/10.1088/0034-4885/65/7/201

Healey, S. E., Romani, R. W., Taylor, G. B., et al. 2007, ApJS, 171, 61, https://doi.org/10.1086/513742

IceCube Collaboration. 2013, Sci, 342, 1242856, https://doi.org/10.1126/science.1242856

IceCube Collaboration 2022, GCN, 31554, 1

IceCube Collaboration, Aartsen, M. G., Ackermann, M., et al. 2018a, Sci, 361, eaat1378, https://doi.org/10.1126/science.aat1378

IceCube Collaboration, Aartsen, M. G., Ackermann, M., et al 2018b, Sci, 361, 147, https://doi.org/10.1126/science.aat2890

IceCube Collaboration, Abbasi, R., Ackermann, M., et al. 2022, Sci, 378, 538, https://doi.org/10.1126/science.abg3395

Jackson, C. A., Wall, J. V., Shaver, P. A., et al. 2002, A&A, 386, 97, https://doi.org/10.1051/0004-6361:20020119

Kardashev, N. S. 1962, SvA, 6, 317

Kataoka, J., Takahashi, T., Wagner, S. J., et al. 2001, ApJ, 560, 659, https://doi.org/10.1086/322442

Kelner, S. R., & Aharonian, F. A. 2008, PhRvD, 78, 034013, https://doi.org/10.1103/PhysRevD.78.034013

Lott, B., Gasparrini, D., & Ciprini, S. 2020, https://arxiv.org/abs/2010.08406, https://doi.org/10.48550/arXiv.2010.08406

Lyke, B. W., Higley, A. N., McLane, J. N., et al. 2020, ApJS, 250, 8, https://doi.org/10.3847/1538-4365/aba623

Mao, P., Urry, C. M., Massaro, F., et al. 2016, ApJS, 224, 26, https://doi.org/10.3847/0067-0049/224/2/26

Massaro, E., Giommi, P., Leto, C., et al. 2009, A&A, 495, 691, https://doi.org/10.1051/0004-6361:200810161

Massaro, E., Tramacere, A., Perri, M., Giommi, P., & Tosti, G. 2006, A&A, 448, 861, https://doi.org/10.1051/0004-6361:20053644

McLure, R. J., & Dunlop, J. S. 2004, MNRAS, 352, 1390, https://doi.org/10.1111/j.1365-2966.2004.08034.x

Meyer, M., Scargle, J. D., & Blandford, R. D. 2019, ApJ, 877, 39, https://doi.org/10.3847/1538-4357/ab1651

Newville, M., Stensitzki, T., Allen, D. B., et al. 2014, LMFIT: Non-Linear Least-Square Minimization and Curve-Fitting for Python, 0.8.0, Zenodo, https://doi.org/10.5281/zenodo.11813

Peña-Herazo, H. A., Massaro, F., Gu, M., et al. 2021, AJ, 161, 196, https://doi.org/10.3847/1538-3881/abe41d

Petropoulou, M., Oikonomou, F., Mastichiadis, A., et al. 2020, ApJ, 899, 113, https://doi.org/10.3847/1538-4357/aba8a0

Plotkin, R. M., Anderson, S. F., Hall, P. B., et al. 2008, AJ, 135, 2453, https://doi.org/10.1088/0004-6256/135/6/2453

Sahakyan, N., Giommi, P., Padovani, P., et al. 2023, MNRAS, 519, 1396, https://doi.org/10.1093/mnras/stac3607

Saugé, L., & Henri, G. 2004, ApJ, 616, 136, https://doi.org/10.1086/424905

Schneider, D. P., Richards, G. T., Hall, P. B., et al. 2010, AJ, 139, 2360, https://doi.org/10.1088/0004-6256/139/6/2360

Sowards-Emmerd, D., Romani, R. W., Michelson, P. F., et al. 2005, ApJ, 626, 95, https://doi.org/10.1086/429902

The Fact Collaboration, The H. E. S. S. Collaboration, The Icecube Collaboration, et al. 2022, in 37th International Cosmic Ray Conference, 960, https://doi.org/10.22323/1.395.0960

Truebenbach, A. E., & Darling, J. 2017, ApJS, 233, 3, https://doi.org/10.3847/1538-4365/aa9026

Véron-Cetty, M. P., & Véron, P. 2010, A&A, 518, A10, https://doi.org/10.1051/0004-6361/201014188

Wagner, R. M. 2008, MNRAS, 385, 119, https://doi.org/10.1111/j.1365-2966.2008.12850.x

Wagner, S. M., Burd, P., Dorner, D., et al. 2022, in 37th International Cosmic Ray Conference, 868, https://doi.org/10.22323/1.395.0868

Wright, E. L., Chen, X., Odegard, N., et al. 2009, ApJS, 180, 283, https://doi.org/10.1088/0067-0049/180/2/283

Yao, S., Wu, X.-B., Ai, Y. L., et al. 2019, ApJS, 240, 6, https://doi.org/10.3847/1538-4365/aaef88

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