Stereo observations of CTA 1 with SST-1M
CTA 1 is a composite supernova remnant featuring a shell structure and an inner Pulsar Wind Nebula. The shell is visible in the radio band, while Fermi has detected the radio-quiet pulsar PSR J0007+7303 at its core. Gamma-ray detectors such as LHAASO and VERITAS have detected TeV emission in the vicinity of the pulsar. However, the derived SEDs from LHAASO WCDA and VERITAS show significant discrepancies, which could be due to a complicated energy-dependent morphology not accounted for in the spectral analysis, and different angular resolution of the two experiments. CTA 1 has been a target for dedicated observations by the SST-1M telescopes, a pair of small-sized Imaging Atmospheric Cherenkov Telescopes (IACTs) capable of operating in both mono and stereo modes. Located at the Ondřejov Observatory in Czech Republic, these telescopes are sensitive to the high energy range of the gamma-ray spectrum, spanning from 1 to 300 TeV. To investigate the very high-energy emission of CTA 1, the SST-1Ms have accumulated approximately 30 hours of selected observations, aiming to further constrain the characteristics of the source’s high energy emission, and to shed some light into the discrepancy between different experiments.
Authors
- F. Cadoux
- Anabella Araudo (ORCID: https://orcid.org/0000-0001-7605-5786)
- Matteo Balbo (ORCID: https://orcid.org/0000-0002-6556-3344)
- R. Walter (ORCID: https://orcid.org/0000-0003-2362-4433)
- J. Borkowski (ORCID: https://orcid.org/0000-0002-1460-496X)
- Jiří Blažek (ORCID: https://orcid.org/0000-0002-5870-8947)
- Vasyl Beshley (ORCID: https://orcid.org/0000-0002-2688-0224)
- S. Casanova (ORCID: https://orcid.org/0000-0002-6144-9122)
- Stella Boula (ORCID: https://orcid.org/0000-0001-7905-6928)
- M. Jelínek (ORCID: https://orcid.org/0000-0003-3922-7416)
- M. Ostrowski (ORCID: https://orcid.org/0000-0002-9199-7031)
- A. Christov (ORCID: https://orcid.org/0000-0001-8121-5860)
- Cyril Martin Alispach
- E. Mach (ORCID: https://orcid.org/0000-0002-9259-586X)
- Paweł Świerk
- M. Hrabovský (ORCID: https://orcid.org/0000-0003-4223-7316)
- A. Nagai (ORCID: https://orcid.org/0000-0002-7150-4527)
- P. Trávnı́ček (ORCID: https://orcid.org/0000-0002-1655-9584)
- Ł. Stawarz
- M. Nikołajuk (ORCID: https://orcid.org/0000-0003-4075-6745)
- P. Hamal (ORCID: https://orcid.org/0000-0003-3139-7234)
- I. Troyano Pujadas
- J. Vícha (ORCID: https://orcid.org/0000-0002-7945-3605)
- L. Chytka (ORCID: https://orcid.org/0000-0001-5741-259X)
- Vladimír Novotný (ORCID: https://orcid.org/0000-0002-4319-4541)
- V. Karas (ORCID: https://orcid.org/0000-0002-5760-0459)
- M. Palatka (ORCID: https://orcid.org/0000-0003-2061-6059)
- Vitalii Sliusar (ORCID: https://orcid.org/0000-0002-4387-9372)
- M. Stodulska (ORCID: https://orcid.org/0000-0002-4477-8143)
- J. Štrobl (ORCID: https://orcid.org/0000-0002-4147-2878)
- J. Niemiec (ORCID: https://orcid.org/0000-0001-6036-8569)
- Matthieu Heller (ORCID: https://orcid.org/0000-0003-1215-0148)
- R. Moderski (ORCID: https://orcid.org/0000-0002-8663-3882)
- R. Sternberger
- L. Gibaud (ORCID: https://orcid.org/0000-0001-7765-8271)
- D. della Volpe (ORCID: https://orcid.org/0000-0001-8530-7447)
- Patrik Čechvala
- M. Garczarczyk (ORCID: https://orcid.org/0000-0002-0445-4566)
- T. Montaruli (ORCID: https://orcid.org/0000-0001-5014-2152)
- Jakub Jurýšek (ORCID: https://orcid.org/0000-0002-3130-4168)
- Dominik Neise
- M. Prouza (ORCID: https://orcid.org/0000-0002-3238-9597)
- T. Bulik (ORCID: https://orcid.org/0000-0003-2045-4803)
- Krzysztof Ziȩtara
- Ana Laura Muller
- E. Lyard
- Tomasz Gieras
- Adam Muraczewski
- Srija Reddy Muthyala
- Krzysztof Nalewajski
- Jerzy Michalowksi
- J. Chudoba (ORCID: https://orcid.org/0000-0002-6425-2579)
- Wojciech Marek
- Stanislav Michal (ORCID: https://orcid.org/0000-0001-6563-1573)
- Yannick Favre
- Jacek Świerblewski (ORCID: https://orcid.org/0000-0003-4005-3863)
- Miroslav Pech
- Dusan Mandat
- Petr Janeček
- Vlastimil Jílek (ORCID: https://orcid.org/0000-0001-5774-7285)
- T. Tavernier
- Petr Schovánek (ORCID: https://orcid.org/0000-0002-5344-7645)
- Premysl Dedic (ORCID: https://orcid.org/0000-0001-7805-4373)
- Bastien Lacave
- Ernest Glowacki
- Michal Miron
Institutions
- Laboratoire de Physique de Clermont Auvergne (FR)
Publication Details
- Published
- 2025-09-23
- DOI
- https://doi.org/10.22323/1.501.0719
- Primary Topic
- Medical Imaging Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- European Commission
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Ministerstvo Školství, Mládeže a Tělovýchovy
- Grantová Agentura České Republiky
- Université de Genève