{"id":32308,"date":"2026-01-21T17:01:41","date_gmt":"2026-01-21T17:01:41","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/detection-of-rs-oph-with-lst-1-and-modelling-of-its-he-vhe-gamma-ray-emission\/"},"modified":"2026-06-08T13:19:44","modified_gmt":"2026-06-08T13:19:44","slug":"detection-of-rs-oph-with-lst-1-and-modelling-of-its-he-vhe-gamma-ray-emission","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/detection-of-rs-oph-with-lst-1-and-modelling-of-its-he-vhe-gamma-ray-emission\/","title":{"rendered":"Detection of {RS} Oph with {LST}-1 and modelling of its {HE}\/{VHE} gamma-ray emission"},"content":{"rendered":"<p>The recurrent nova {RS} Ophiuchi ({RS} Oph) underwent a thermonuclear eruption in August 2021. In this event, {RS} Oph was detected by the High Energy Stereoscopic System (H.E.S.S.), the Major Atmospheric Gamma Imaging Cherenkov ({MAGIC}), and the first Large-Sized Telescope ({LST}-1) of the future Cherenkov Telescope Array Observatory ({CTAO}) at very-high gamma-ray energies above 100 {GeV}. This means that novae are a new class of very-high-energy ({VHE}) gamma-ray emitters. We report the analysis of the {RS} Oph observations with {LST}-1. We constrain the particle population that causes the observed emission in hadronic and leptonic scenarios. Additionally, we study the prospects of detecting further novae using {LST}-1 and the upcoming {LST} array of {CTAO}-North. We conducted target-of-opportunity observations with {LST}-1 from the first day of this nova event. The data were analysed in the framework of cta-lstchain and Gammapy, the official {CTAO}-{LST} reconstruction and analysis packages.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The recurrent nova {RS} Ophiuchi ({RS} Oph) underwent a thermonuclear eruption in August 2021. In this event, {RS} Oph was detected by the High Energy Stereoscopic System (H.E.S.S.), the Major Atmospheric Gamma Imaging Cherenkov ({MAGIC}), and the first Large-Sized Telescope ({LST}-1) of the future Cherenkov Telescope Array Observatory ({CTAO}) at very-high gamma-ray energies above 100 {GeV}. This means that novae are a new class of very-high-energy ({VHE}) gamma-ray emitters. We [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-32308","publication","type-publication","status-publish","hentry","publication-type-article"],"acf":[],"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/32308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/types\/publication"}],"author":[{"embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/users\/12"}],"version-history":[{"count":0,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/32308\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=32308"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=32308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}