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HAWC, VERITAS, Fermi-LAT and XMM-Newton follow-up observations of the unidentified ultra-high-energy gamma-ray source LHAASO J2108+5157

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	The VERITAS collaboration, Adams, C. B., Bangale, P., Benbow, W., Buckley, J. H., Chen, Y., Christiansen, J. L., Chromey, A. J., Godoy, M. Escobar, Feldman, S., Feng, Q., Foote, J., Fortson, L., Furniss, A., Hanlon, W., Hervet, O., Hinrichs, C. E., Holder, J., Hughes, Z., Humensky, T. B., Jin, W., Kaaret, P., Kertzman, M., Kherlakian, M., Kieda, D., Kleiner, T. K., Korzoun, N., Kumar, S., Lang, M. J., Lundy, M., Maier, G., Millard, M. J., Moriarty, P., Mukherjee, R., Ning, W., Ong, R. A., Pohl, M., Pueschel, E., Quinn, J., Rabinowitz, P. L., Ragan, K., Reynolds, P. T., Ribeiro, D., Roache, E., Sadeh, I., Saha, L., Sembroski, G. H., Shang, R., Tak, D., Talluri, A. K., Tucci, J. V., Valverde, J., Williams, D. A., Wong, S. L., collaboration, J. Woo The HAWC, :, Alfaro, R., Alvarez, C., Arteaga-Vel'azquez, J. C., Rojas, D. Avila, Babu, R., Belmont-Moreno, E., Bernal, A., Caballero-Mora, K. S., Carramiñana, A., Casanova, S., Cotti, U., Cotzomi, J., De la Fuente, E., de León, C., Depaoli, D., Desiati, P., Di Lalla, N., Hernandez, R. Diaz, DuVernois, M. A., Engel, K., Ergin, T., Espinoza, C., Fan, K. L., Fraija, N., Fraija, S., García-González, J. A., Garfias, F., Muñoz, A. Gonzalez, González, M. M., Goodman, J. A., Groetsch, S., Harding, J. P., Hernández-Cadena, S., Herzog, I., Huang, D., Hueyotl-Zahuantitla, F., Hüntemeyer, P., Iriarte, A., Kaufmann, S., Lara, A., Lee, J., Vargas, H. León, Longinotti, A. L., Luis-Raya, G., Malone, K., Martinez, O., Martínez-Castro, J., Matthews, J. A., Miranda-Romagnoli, P., Morales-Soto, J. A., Moreno, E., Araya, M., Mostafá, M., Najafi, M., Nayerhoda, A., Nellen, L., Omodei, N., Ponce, E., Pérez-Pérez, E. G., Rho, C. D., Rosa-González, D., Roth, M., Salazar, H., Sandoval, A., Schneider, M., Serna-Franco, J., Smith, A. J., Son, Y., Springer, R. W., Tibolla, O., Tollefson, K., Torres, I., Torres-Escobedo, R., Turner, R., Ureña-Mena, F., Varela, E., Villaseñor, L., Wang, X., Wang, Z., Watson, I. J., Wu, H., Yu, S., Yun-Cárcamo, S., Zhou, H., collaboration, M. Martin The XMM-Newton, Mori, Kaya, Hailey, Charles J., Safi-Harb, Samar, Zhang, Shuo
Formato:	Preprint
Publicado:	2025
Materias:	High Energy Astrophysical Phenomena
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

_version_	1866909752611569664
author	The VERITAS collaboration Adams, C. B. Bangale, P. Benbow, W. Buckley, J. H. Chen, Y. Christiansen, J. L. Chromey, A. J. Godoy, M. Escobar Feldman, S. Feng, Q. Foote, J. Fortson, L. Furniss, A. Hanlon, W. Hervet, O. Hinrichs, C. E. Holder, J. Hughes, Z. Humensky, T. B. Jin, W. Kaaret, P. Kertzman, M. Kherlakian, M. Kieda, D. Kleiner, T. K. Korzoun, N. Kumar, S. Lang, M. J. Lundy, M. Maier, G. Millard, M. J. Moriarty, P. Mukherjee, R. Ning, W. Ong, R. A. Pohl, M. Pueschel, E. Quinn, J. Rabinowitz, P. L. Ragan, K. Reynolds, P. T. Ribeiro, D. Roache, E. Sadeh, I. Saha, L. Sembroski, G. H. Shang, R. Tak, D. Talluri, A. K. Tucci, J. V. Valverde, J. Williams, D. A. Wong, S. L. collaboration, J. Woo The HAWC : Alfaro, R. Alvarez, C. Arteaga-Vel'azquez, J. C. Rojas, D. Avila Babu, R. Belmont-Moreno, E. Bernal, A. Caballero-Mora, K. S. Carramiñana, A. Casanova, S. Cotti, U. Cotzomi, J. De la Fuente, E. de León, C. Depaoli, D. Desiati, P. Di Lalla, N. Hernandez, R. Diaz DuVernois, M. A. Engel, K. Ergin, T. Espinoza, C. Fan, K. L. Fraija, N. Fraija, S. García-González, J. A. Garfias, F. Muñoz, A. Gonzalez González, M. M. Goodman, J. A. Groetsch, S. Harding, J. P. Hernández-Cadena, S. Herzog, I. Huang, D. Hueyotl-Zahuantitla, F. Hüntemeyer, P. Iriarte, A. Kaufmann, S. Lara, A. Lee, J. Vargas, H. León Longinotti, A. L. Luis-Raya, G. Malone, K. Martinez, O. Martínez-Castro, J. Matthews, J. A. Miranda-Romagnoli, P. Morales-Soto, J. A. Moreno, E. Araya, M. Mostafá, M. Najafi, M. Nayerhoda, A. Nellen, L. Omodei, N. Ponce, E. Pérez-Pérez, E. G. Rho, C. D. Rosa-González, D. Roth, M. Salazar, H. Sandoval, A. Schneider, M. Serna-Franco, J. Smith, A. J. Son, Y. Springer, R. W. Tibolla, O. Tollefson, K. Torres, I. Torres-Escobedo, R. Turner, R. Ureña-Mena, F. Varela, E. Villaseñor, L. Wang, X. Wang, Z. Watson, I. J. Wu, H. Yu, S. Yun-Cárcamo, S. Zhou, H. collaboration, M. Martin The XMM-Newton : Mori, Kaya Hailey, Charles J. Safi-Harb, Samar Zhang, Shuo
author_facet	The VERITAS collaboration Adams, C. B. Bangale, P. Benbow, W. Buckley, J. H. Chen, Y. Christiansen, J. L. Chromey, A. J. Godoy, M. Escobar Feldman, S. Feng, Q. Foote, J. Fortson, L. Furniss, A. Hanlon, W. Hervet, O. Hinrichs, C. E. Holder, J. Hughes, Z. Humensky, T. B. Jin, W. Kaaret, P. Kertzman, M. Kherlakian, M. Kieda, D. Kleiner, T. K. Korzoun, N. Kumar, S. Lang, M. J. Lundy, M. Maier, G. Millard, M. J. Moriarty, P. Mukherjee, R. Ning, W. Ong, R. A. Pohl, M. Pueschel, E. Quinn, J. Rabinowitz, P. L. Ragan, K. Reynolds, P. T. Ribeiro, D. Roache, E. Sadeh, I. Saha, L. Sembroski, G. H. Shang, R. Tak, D. Talluri, A. K. Tucci, J. V. Valverde, J. Williams, D. A. Wong, S. L. collaboration, J. Woo The HAWC : Alfaro, R. Alvarez, C. Arteaga-Vel'azquez, J. C. Rojas, D. Avila Babu, R. Belmont-Moreno, E. Bernal, A. Caballero-Mora, K. S. Carramiñana, A. Casanova, S. Cotti, U. Cotzomi, J. De la Fuente, E. de León, C. Depaoli, D. Desiati, P. Di Lalla, N. Hernandez, R. Diaz DuVernois, M. A. Engel, K. Ergin, T. Espinoza, C. Fan, K. L. Fraija, N. Fraija, S. García-González, J. A. Garfias, F. Muñoz, A. Gonzalez González, M. M. Goodman, J. A. Groetsch, S. Harding, J. P. Hernández-Cadena, S. Herzog, I. Huang, D. Hueyotl-Zahuantitla, F. Hüntemeyer, P. Iriarte, A. Kaufmann, S. Lara, A. Lee, J. Vargas, H. León Longinotti, A. L. Luis-Raya, G. Malone, K. Martinez, O. Martínez-Castro, J. Matthews, J. A. Miranda-Romagnoli, P. Morales-Soto, J. A. Moreno, E. Araya, M. Mostafá, M. Najafi, M. Nayerhoda, A. Nellen, L. Omodei, N. Ponce, E. Pérez-Pérez, E. G. Rho, C. D. Rosa-González, D. Roth, M. Salazar, H. Sandoval, A. Schneider, M. Serna-Franco, J. Smith, A. J. Son, Y. Springer, R. W. Tibolla, O. Tollefson, K. Torres, I. Torres-Escobedo, R. Turner, R. Ureña-Mena, F. Varela, E. Villaseñor, L. Wang, X. Wang, Z. Watson, I. J. Wu, H. Yu, S. Yun-Cárcamo, S. Zhou, H. collaboration, M. Martin The XMM-Newton : Mori, Kaya Hailey, Charles J. Safi-Harb, Samar Zhang, Shuo
contents	We report observations of the ultra-high-energy gamma-ray source LHAASO J2108$+$5157, utilizing VERITAS, HAWC, Fermi-LAT, and XMM-Newton. VERITAS has collected $\sim$ 40 hours of data that we used to set ULs to the emission above 200 GeV. The HAWC data, collected over $\sim 2400$ days, reveal emission between 3 and 146 TeV, with a significance of $7.5~σ$, favoring an extended source model. The best-fit spectrum measured by HAWC is characterized by a simple power-law with a spectral index of $2.45\pm0.11_{stat}$. Fermi-LAT analysis finds a point source with a very soft spectrum in the LHAASO J2108+5157 region, consistent with the 4FGL-DR3 catalog results. The XMM-Newton analysis yields a null detection of the source in the 2 - 7 keV band. The broadband spectrum can be interpreted as a pulsar and a pulsar wind nebula system, where the GeV gamma-ray emission originates from an unidentified pulsar, and the X-ray and TeV emission is attributed to synchrotron radiation and inverse Compton scattering of electrons accelerated within a pulsar wind nebula. In this leptonic scenario, our X-ray upper limit provides a stringent constraint on the magnetic field, which is $\lesssim 1.5\ μ$G.
format	Preprint
id	arxiv_https___arxiv_org_abs_2508_01934
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	HAWC, VERITAS, Fermi-LAT and XMM-Newton follow-up observations of the unidentified ultra-high-energy gamma-ray source LHAASO J2108+5157 The VERITAS collaboration Adams, C. B. Bangale, P. Benbow, W. Buckley, J. H. Chen, Y. Christiansen, J. L. Chromey, A. J. Godoy, M. Escobar Feldman, S. Feng, Q. Foote, J. Fortson, L. Furniss, A. Hanlon, W. Hervet, O. Hinrichs, C. E. Holder, J. Hughes, Z. Humensky, T. B. Jin, W. Kaaret, P. Kertzman, M. Kherlakian, M. Kieda, D. Kleiner, T. K. Korzoun, N. Kumar, S. Lang, M. J. Lundy, M. Maier, G. Millard, M. J. Moriarty, P. Mukherjee, R. Ning, W. Ong, R. A. Pohl, M. Pueschel, E. Quinn, J. Rabinowitz, P. L. Ragan, K. Reynolds, P. T. Ribeiro, D. Roache, E. Sadeh, I. Saha, L. Sembroski, G. H. Shang, R. Tak, D. Talluri, A. K. Tucci, J. V. Valverde, J. Williams, D. A. Wong, S. L. collaboration, J. Woo The HAWC : Alfaro, R. Alvarez, C. Arteaga-Vel'azquez, J. C. Rojas, D. Avila Babu, R. Belmont-Moreno, E. Bernal, A. Caballero-Mora, K. S. Carramiñana, A. Casanova, S. Cotti, U. Cotzomi, J. De la Fuente, E. de León, C. Depaoli, D. Desiati, P. Di Lalla, N. Hernandez, R. Diaz DuVernois, M. A. Engel, K. Ergin, T. Espinoza, C. Fan, K. L. Fraija, N. Fraija, S. García-González, J. A. Garfias, F. Muñoz, A. Gonzalez González, M. M. Goodman, J. A. Groetsch, S. Harding, J. P. Hernández-Cadena, S. Herzog, I. Huang, D. Hueyotl-Zahuantitla, F. Hüntemeyer, P. Iriarte, A. Kaufmann, S. Lara, A. Lee, J. Vargas, H. León Longinotti, A. L. Luis-Raya, G. Malone, K. Martinez, O. Martínez-Castro, J. Matthews, J. A. Miranda-Romagnoli, P. Morales-Soto, J. A. Moreno, E. Araya, M. Mostafá, M. Najafi, M. Nayerhoda, A. Nellen, L. Omodei, N. Ponce, E. Pérez-Pérez, E. G. Rho, C. D. Rosa-González, D. Roth, M. Salazar, H. Sandoval, A. Schneider, M. Serna-Franco, J. Smith, A. J. Son, Y. Springer, R. W. Tibolla, O. Tollefson, K. Torres, I. Torres-Escobedo, R. Turner, R. Ureña-Mena, F. Varela, E. Villaseñor, L. Wang, X. Wang, Z. Watson, I. J. Wu, H. Yu, S. Yun-Cárcamo, S. Zhou, H. collaboration, M. Martin The XMM-Newton : Mori, Kaya Hailey, Charles J. Safi-Harb, Samar Zhang, Shuo High Energy Astrophysical Phenomena We report observations of the ultra-high-energy gamma-ray source LHAASO J2108$+$5157, utilizing VERITAS, HAWC, Fermi-LAT, and XMM-Newton. VERITAS has collected $\sim$ 40 hours of data that we used to set ULs to the emission above 200 GeV. The HAWC data, collected over $\sim 2400$ days, reveal emission between 3 and 146 TeV, with a significance of $7.5~σ$, favoring an extended source model. The best-fit spectrum measured by HAWC is characterized by a simple power-law with a spectral index of $2.45\pm0.11_{stat}$. Fermi-LAT analysis finds a point source with a very soft spectrum in the LHAASO J2108+5157 region, consistent with the 4FGL-DR3 catalog results. The XMM-Newton analysis yields a null detection of the source in the 2 - 7 keV band. The broadband spectrum can be interpreted as a pulsar and a pulsar wind nebula system, where the GeV gamma-ray emission originates from an unidentified pulsar, and the X-ray and TeV emission is attributed to synchrotron radiation and inverse Compton scattering of electrons accelerated within a pulsar wind nebula. In this leptonic scenario, our X-ray upper limit provides a stringent constraint on the magnetic field, which is $\lesssim 1.5\ μ$G.
title	HAWC, VERITAS, Fermi-LAT and XMM-Newton follow-up observations of the unidentified ultra-high-energy gamma-ray source LHAASO J2108+5157
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2508.01934