Galactic Particle Accelerators

银河粒子加速器

• 批准号: 2012916
• 负责人: Mary Hall Reno
• 金额: $ 30万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2012916&HistoricalAwards=false
• 关键词: Galactic; Particle; Accelerators

The universe contains astrophysical objects that accelerate particles to energies beyond the reach of any device yet built by humans, but what drives these accelerators remains a major question in astrophysics. This study uses the Very Energetic Radiation Imaging Telescope Array System (VERITAS) to study very high energy particle accelerators in our Milky Way Galaxy. The group will continue to operate and maintain the VERITAS pointing monitors and contribute to array operations, and lead in the creation of an archive of high-level science results from VERITAS. The science results will deepen understanding of how energetic particles are accelerated in our Galaxy. This group has developed a program to host an undergraduate summer intern from an under-represented minority (URM) every summer, as a way to increase the participation of URM students in astrophysics research.It had long been thought that cosmic rays are accelerated in young supernova remnants, but VERITAS observations unexpectedly showed a lack of the necessary emission at high energies. Targets for deep observation include gamma-ray sources and other accelerator candidate objects, which need to be capable of producing cosmic rays with energies of 10^15 eV, the so-called Pevatrons. The team will also observe a hard spectrum and extended shell-type supernova remnant recently discovered with the Fermi observatory, along with other supernova remnants, better to understand how they could accelerate energetic particles.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

宇宙中包含着天体物理学物体，它们将粒子加速到人类尚未建造的任何设备都无法达到的能量，但驱动这些加速器的是什么仍然是天体物理学中的一个主要问题。 本研究使用甚高能辐射成像望远镜阵列系统（VERITAS）研究我们银河系中的甚高能粒子加速器。 该小组将继续操作和维护VERITAS指向监视器，并为阵列操作做出贡献，并领导创建VERITAS高级科学成果档案。 科学结果将加深对高能粒子如何在我们的银河系中加速的理解。 这个小组每年夏天都会组织一名来自少数民族大学（URM）的本科生暑期实习生，以此来提高URM学生对天体物理学研究的参与度。长期以来，人们一直认为宇宙射线在年轻的超新星遗迹中会加速，但VERITAS的观测结果出人意料地显示，在高能量下缺乏必要的辐射。 深度观测的目标包括伽马射线源和其他加速器候选对象，它们需要能够产生能量为10^15 eV的宇宙射线，即所谓的Pevatron。 该团队还将观察费米天文台最近发现的一个硬光谱和扩展壳型超新星遗迹，沿着其他超新星遗迹，以更好地了解它们如何加速高能粒子。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

An Archival Search for Neutron-star Mergers in Gravitational Waves and Very-high-energy Gamma Rays

• DOI: 10.3847/1538-4357/ac0623
• 发表时间: 2021-06
• 期刊: The Astrophysical Journal
• 作者: C. Adams;W. Benbow;A. Brill;J. Buckley;M. Capasso;J. Christiansen;A. Chromey;M. Daniel;M. Errando;A. Falcone;K. A. Farrell;Q. Feng;J. Finley;L. Fortson;A. Furniss;A. Gent;C. Giuri;D. Hanna;T. Hassan;O. Hervet;J. Holder;G. Hughes;T. Humensky;W. Jin;P. Kaaret;M. Kertzman;D. Kieda;S. Kumar;M. Lang;M. Lundy;G. Maier;C. McGrath;P. Moriarty;R. Mukherjee;D. Nieto;M. Nievas-Rosillo;S. O’Brien;R. Ong;A. Otte;N. Park;S. Patel;K. Pfrang;M. Pohl;R. Prado;E. Pueschel;J. Quinn;K. Ragan;P. Reynolds;D. Ribeiro;E. Roache;J. Ryan;M. Santander;G. Sembroski;R. Shang;A. Weinstein;D. Williams;T. Williamson;I. Bartos;K. Corley;S. M'arka;Z. Márka;D. Veske

VTSCat: The VERITAS Catalog of Gamma-Ray Observations

VTSCat：VERITAS 伽马射线观测目录

• DOI: 10.3847/2515-5172/acb147
• 发表时间: 2023
• 期刊: Research Notes of the AAS
• 作者: Acharyya, A.;Adams, C. B.;Archer, A.;Bangale, P.;Bartkoske, J. T.;Batista, P.;Benbow, W.;Brill, A.;Brose, R.;Buckley, J. H.
• 通讯作者: Buckley, J. H.

Gamma-ray observations of MAXI J1820+070 during the 2018 outburst

2018 年爆发期间 MAXI J1820 070 的伽马射线观测

• DOI: 10.1093/mnras/stac2686
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Abe, H;Abe, S;Acciari, V A;Aniello, T;Ansoldi, S;Antonelli, L A;Arbet Engels, A;Arcaro, C;Artero, M;Asano, K
• 通讯作者: Asano, K

VERITAS Observations of the Galactic Center Region at Multi-TeV Gamma-Ray Energies

• DOI: 10.3847/1538-4357/abf926
• 发表时间: 2021-04
• 期刊: The Astrophysical Journal
• 作者: J. Ryan

Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

• DOI: 10.3847/2041-8213/abef71
• 发表时间: 2021-04
• 作者: J. Algaba;J. Anczarski;K. Asada;M. Balokovi;S. Chandra;Y.-Z. Cui;A. Falcone;M. Giroletti;C. Goddi;K. Hada;D. Haggard;S. Jorstad;A. Kaur;T. Kawashima;G. Keating;J. Kim;M. Kino;E. Kravchenko;M. Lucchini;S. Markoff;J. Neilsen;M. A. Nowak;J. Park;G. Principe;V. Ramakrishnan;M. T. Reynolds;M. Sasada;K. Akiyama;A. Alberdi;W. Alef;R. Anantua;R. Azulay;A. Baczko;D. Ball;J. Barrett;D. Bintley;B. Benson;L. Blackburn;R. Blundell;W. Boland;K. Bouman;G. Bower;H. Boyce;M. Bremer;C. Brinkerink;R. Brissenden;S. Britzen;A. Broderick;D. Broguiere;T. Bronzwaer;D. Byun;J. Carlstrom;A. Chael;Chi-kwan Chan;S. Chatterjee;K. Chatterjee;Ming-Tang Chen;P. Chesler;I. Cho;P. Christian;J. Conway;J. Cordes;T. Crawford;A. Cruz-Osorio;J. Davelaar;M. Laurentis;R. Deane;J. Dempsey;G. Desvignes;J. Dexter;S. Doeleman;R. Eatough;H. Falcke;J. Farah;V. Fish;E. Fomalont;H. Ford;R. Fraga-Encinas;P. Friberg;C. Fromm;A. Fuentes;P. Galison;C. Gammie;Roberto García;O. Gentaz;B. Georgiev;R. Gold;J. Gómez;M. Gurwell;M. H. Hecht;R. Hesper;P. Ho;M. Honma;Chih-Wei L. Huang;David H. Hughes;Shiro Ikeda;M. Inoue;S. Issaoun;D. J. James;B. Jannuzi;M. Janssen;B. Jeter;A. Jiménez-Rosales;Michael D. Johnson;T. Jung;M. Karami;R. Karuppusamy;M. Kettenis;Dong-Jin Kim;Jongsoo Kim;Junhan Kim;J. Koay;Y. Kofuji;P. Koch;S. Koyama;M. Kramer;C. Kramer;C. Kuo;T. Lauer;A. Levis;M. Lindqvist;R. Lico;G. Lindahl;Kuo Liu;E. Liuzzo;Wen-Ping Lo;A. Lobanov;L. Loinard;C. Lonsdale;N. MacDonald;N. Marchili;D. Marrone;A. Marscher;I. Martí-Vidal;S. Matsushita;L. Matthews;L. Medeiros;K. Menten;I. Mizuno;Y. Mizuno;J. M. Moran;Kotaro Moriyama;M. Mościbrodzka;C. Müller;G. Musoke;A. Mejías;H. Nagai;M. Nakamura;Ramesh Narayan;G. Narayanan;I. Natarajan;A. Nathanail;R. Neri;C. Ni;A. Noutsos;H. Okino;H. Olivares;G. Ortiz-Léon;T. Oyama;F. Özel;D. Palumbo;N. Patel;D. Pesce;V. Piétu;R. Plambeck;A. PopStefanija;O. Porth;F. M. Pötzl;B. Prather;J. A. Preciado-López;D. Psaltis;Hung-Yi Pu;R. Rao;M. Rawlings;A. Raymond;L. Rezzolla;Angelo Ricarte;B. Ripperda;F. Roelofs;Alan Rogers;E. Ros;M. Rose;A. Roshanineshat;H. Rottmann;A. Roy;C. Ruszczyk;K. Rygl;S. Sánchez;D. Sánchez-Arguelles;T. Savolainen;F. Schloerb;K. Schuster;Lijing Shao;B. Sohn;J. SooHoo;F. Tazaki;A. Tetarenko;P. Tiede;R. Tilanus;M. Titus;K. Toma;P. Torne;T. Trent;E. Traianou;S. Trippe;H. V. Langevelde;D. V. Rossum;J. Wagner;D. Ward-Thompson;J. Wardle;J. Weintroub;N. Wex;R. Wharton;M. Wielgus;G. Wong;A. Young;K. Young;Guangyao Zhao;F. Aharonian;E. Angüner;C. Arcaro;C. Armand;T. Armstrong;H. Ashkar;Michael Backes;V. Baghmanyan;V. B. Martins;A. Barnacka;M. Barnard;Y. Becherini;D. Berge;K. Bernlöhr;J. Bolmont;M. Breuhaus;F. Brun;P. Brun;M. Bryan;M. Büchele;T. Bulik;T. Bylund