Constraining the TeV Halo Population in M31

Andrés A, Albert A, Alfaro R, Alvarez C, Arteaga-Velázquez JC, Avila Rojas D, Ayala Solares HA, Babu R, Belmont-Moreno E, Caballero-Mora KS, Capistrán T, Yun-Cárcamo S, Carramiñana A, Carreón F, Cotti U, Cotzomi J, Coutiño de León S, De la Fuente E, Depaoli D, de León C, Diaz Hernandez R, Díaz-Vélez JC, Dingus BL, Durocher M, DuVernois MA, Engel K, Espinoza C, Fan KL, Fang K, Fraija NI, García-González JA, Garfias F, Goksu H, González MM, Goodman JA, Groetsch S, Harding JP, Hernandez S, Herzog I, Hinton J, Huang D, Hueyotl-Zahuantitla F, Hüntemeyer P, Iriarte A, Joshi V, Kaufmann S, Kieda D, Lara A, Lee J, Lee WH, León Vargas H, Linnemann J, Longinotti AL, Luis-Raya G, Malone K, Martínez-Castro J, Matthews JA, Miranda-Romagnoli P, Montes J, Morales-Soto JA, Mostafá M, Nellen L, Nisa MU, Noriega-Papaqui R, Olivera-Nieto L, Omodei N, Pérez Araujo Y, Pérez-Pérez EG, Pratts A, Rho CD, Rosa-Gonzalez D, Ruiz-Velasco E, Salazar H, Salazar-Gallegos D, Sandoval A, Schneider M, Schwefer G, Serna-Franco J, Smith AJ, Son Y, Springer RW, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Turner R, Ureña-Mena F, Varela E, Villaseñor L, Wang X, Watson IJ, Werner F, Whitaker K, Willox E, Wu H, Zhou H (2024)

Publication Type: Conference contribution

Publication year: 2024

Journal

Publisher: Sissa Medialab Srl

Book Volume: 444

Conference Proceedings Title: Proceedings of Science

Event location: Nagoya, JPN

Abstract

TeV halos are a new class of γ-ray sources recently observed around some middle-aged pulsars. They are extended γ-ray emission regions with a size bigger than the Pulsar Wind Nebulae but smaller than a Supernova Remnant. Several studies indicate that a TeV halo may be a general signature around a middle-aged pulsar, but this is still an open question. Some recent results suggest TeV halos are significantly contributing to the TeV emission of our Galaxy, and models have been proposed to reproduce the observed population of TeV halos in the Milky Way. In this work, we analyze the emission at TeV energies of the Andromeda galaxy (M31), the closest spiral galaxy to Earth. M31 has also been observed to have a GeV excess similar to the observed in the Galactic Center of our Galaxy. The aim of this work is to model the γ-ray emission at TeV energies in M31 assuming both the Milky Way and M31 share similar properties. Using 6 years of HAWC observations, we compute the flux upper limits in the region of M31 at TeV energies.

Authors with CRIS profile

Involved external institutions

National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM) Mexico (MX) University of Maryland United States (USA) (US) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) Michigan Technological University United States (USA) (US) Los Alamos National Laboratory United States (USA) (US) Michigan State University United States (USA) (US) Universidad Autónoma de Chiapas (UNACH) Mexico (MX) Universidad Politécnica de Pachuca (UPP) Mexico (MX) University of Utah United States (USA) (US) University of Seoul (UOS) / 서울시립대학교 Korea, Republic of (KR) National Polytechnic Institute of Mexico / Instituto Politécnico Nacional de México Mexico (MX) University of New Mexico (UNM) / Universidad de Nuevo México United States (USA) (US) Autonomous University of the State of Hidalgo / Universidad Autónoma del Estado de Hidalgo Mexico (MX) Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) Mexico (MX) Pennsylvania State University (Penn State) United States (USA) (US) Stanford University United States (USA) (US) Sungkyunkwan University (SKKU) Korea, Republic of (KR) National Institute of Astrophysics, Optics and Electronics / Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) Mexico (MX) Benemérita Universidad Autónoma de Puebla (BUAP) / Meritorious Autonomous University of Puebla Mexico (MX) Shanghai Jiao Tong University / 上海交通大学 China (CN) University of Wisconsin - Madison United States (USA) (US) Universidad de Guadalajara (UDEG) Mexico (MX) Tecnológico de Monterrey (ITESM) Mexico (MX)

How to cite

APA:

Andrés, A., Albert, A., Alfaro, R., Alvarez, C., Arteaga-Velázquez, J.C., Avila Rojas, D.,... Zhou, H. (2024). Constraining the TeV Halo Population in M31. In Proceedings of Science. Nagoya, JPN: Sissa Medialab Srl.

MLA:

Andrés, A., et al. "Constraining the TeV Halo Population in M31." Proceedings of the 38th International Cosmic Ray Conference, ICRC 2023, Nagoya, JPN Sissa Medialab Srl, 2024.

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