Abstract
We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX J1713.7-3946, a young supernova remnant (SNR) and one of the brightest sources ever discovered in very high energy (VHE) gamma rays. Special attention is paid to exploring possible spatial (anti)correlations of gamma rays with emission at other wavelengths, in particular X-rays and CO/H i emission. We present a series of simulated images of RX J1713.7-3946 for CTA based on a set of observationally motivated models for the gamma-ray emission. In these models, VHE gamma rays produced by high-energy electrons are assumed to trace the nonthermal X-ray emission observed by XMM-Newton, whereas those originating from relativistic protons delineate the local gas distributions. The local atomic and molecular gas distributions are deduced by the NANTEN team from CO and H i observations. Our primary goal is to show how one can distinguish the emission mechanism(s) of the gamma rays (i.e., hadronic versus leptonic, or a mixture of the two) through information provided by their spatial distribution, spectra, and time variation. This work is the first attempt to quantitatively evaluate the capabilities of CTA to achieve various proposed scientific goals by observing this important cosmic particle accelerator.
| Original language | English |
|---|---|
| Article number | 74 |
| Journal | Astrophysical Journal |
| Volume | 840 |
| Issue number | 2 |
| DOIs | |
| State | Published - 10 May 2017 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017. The American Astronomical Society. All rights reserved.
Funding
We gratefully acknowledge financial support from the following agencies and organizations: Ministerio de Ciencia, Tecnologia e Innovacion Productiva (MinCyT), Comision Nacional de Energia Atomica (CNEA), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Argentina; State Committee of Science of Armenia, Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brasil; Croatian Science Foundation, Croatia; Ministry of Education, Youth and Sports, MEYS LE13012, LG14019, 7AMB14AR005, and the Czech Science Foundation grant 14-17501S, Czech Republic; Ministry of Higher Education and Research, CNRS-INSU and CNRS-IN2P3, CEA-Irfu, ANR, Regional Council Ile de France, Labex ENIGMASS, OSUG2020 and OCEVU, France; Max Planck Society, BMBF, DESY, Helmholtz Association, Germany; Department of Atomic Energy, Department of Science and Technology, India; Istituto Nazionale di Astrofisica (INAF), Istituto Nazionale di Fisica Nucleare (INFN), MIUR, Italy; ICRR, University of Tokyo, JSPS, Japan; Netherlands Research School for Astronomy (NOVA), Netherlands Organization for Scientific Research (NWO), Netherlands; The Bergen Research Foundation, Norway; Ministry of Science and Higher Education, the National Centre for Research and Development and the National Science Centre, Poland; Slovenian Research Agency, Slovenia; MINECO support through the National R + D + I, Subprograma Severo Ochoa, CDTI funding plans and the CPAN and MultiDark Consolider-Ingenio 2010 program, Spain; Swedish Research Council, Royal Swedish Academy of Sciences, Sweden; Swiss National Science Foundation (SNSF)
| Funders | Funder number |
|---|---|
| CPAN | |
| Comision Nacional de Energia Atomica | |
| Labex ENIGMASS | OSUG2020 |
| OCEVU | |
| Regional Council Ile de France | |
| Subprograma Severo Ochoa | |
| Seventh Framework Programme | 262053 |
| Department of Science and Technology, Ministry of Science and Technology, India | |
| Department of Atomic Energy, Government of India | |
| Deutsches Elektronen-Synchrotron | |
| Agence Nationale de la Recherche | |
| Japan Society for the Promotion of Science | |
| Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | |
| Royal Swedish Academy of Sciences | |
| Fundação de Amparo à Pesquisa do Estado de São Paulo | |
| Ministerstvo Školství, Mládeže a Tělovýchovy | 7AMB14AR005, LE13012, LG14019 |
| Grantová Agentura České Republiky | 14-17501S |
| Centro para el Desarrollo Tecnológico Industrial | |
| Bundesministerium für Bildung und Forschung | |
| Consejo Nacional de Investigaciones Científicas y Técnicas | |
| Ministerio de Ciencia, Tecnología e Innovación Productiva | |
| Nederlandse Organisatie voor Wetenschappelijk Onderzoek | |
| Ministerio de Economía y Competitividad | |
| Ministero dell’Istruzione, dell’Università e della Ricerca | |
| Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
| Instituto Nazionale di Fisica Nucleare | |
| Max-Planck-Gesellschaft | |
| Narodowe Centrum Nauki | |
| Javna Agencija za Raziskovalno Dejavnost RS | |
| Vetenskapsrådet | |
| Hrvatska Zaklada za Znanost | |
| Ministère de l'Education Nationale, de l'Enseignement Superieur et de la Recherche | |
| Ministerstwo Edukacji i Nauki | |
| Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro | |
| Institut national des sciences de l'Univers | CNRS-IN2P3 |
| University of Tokyo | |
| Istituto Nazionale di Astrofisica | |
| Narodowe Centrum Badań i Rozwoju | |
| Bergens Forskningsstiftelse | |
| State Committee of Science | |
| Helmholtz Association | |
| Nederlandse Onderzoekschool Voor Astronomie |
Keywords
- ISM: individual objects (RX J1713.7-3946, G347.3-0.5)
- cosmic rays
- gamma rays: ISM
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