The cosmic optical background excess, line-intensity mapping

<!--HTML--><p>Recently, the New Horizons spacecraft was able to detect, for the first time, the cosmic background of optical light. &nbsp;The signal was twice that expected from galaxy number counts. &nbsp;This excess can be explained in terms of two-photon decay of a dark-matter...

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Detalles Bibliográficos
Autor principal: Kamionkowski, Marc
Lenguaje:eng
Publicado: 2022
Materias:
Theory Colloquia
Acceso en línea:http://cds.cern.ch/record/2844573
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author Kamionkowski, Marc
author_facet Kamionkowski, Marc
author_sort Kamionkowski, Marc
collection CERN
description <!--HTML--><p>Recently, the New Horizons spacecraft was able to detect, for the first time, the cosmic background of optical light. &nbsp;The signal was twice that expected from galaxy number counts. &nbsp;This excess can be explained in terms of two-photon decay of a dark-matter axion, a hypothesis that will be tested with line-intensity mapping very high significance with the impending launch of NASA’s SphereX. &nbsp;I will discuss line-intensity mapping and show how it can be used to probe dark matter, neutrino decays, and other exotic physics.</p>
id cern-2844573
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28445732022-12-14T19:49:54Zhttp://cds.cern.ch/record/2844573engKamionkowski, MarcThe cosmic optical background excess, line-intensity mappingThe cosmic optical background excess, line-intensity mappingTheory Colloquia<!--HTML--><p>Recently, the New Horizons spacecraft was able to detect, for the first time, the cosmic background of optical light. &nbsp;The signal was twice that expected from galaxy number counts. &nbsp;This excess can be explained in terms of two-photon decay of a dark-matter axion, a hypothesis that will be tested with line-intensity mapping very high significance with the impending launch of NASA’s SphereX. &nbsp;I will discuss line-intensity mapping and show how it can be used to probe dark matter, neutrino decays, and other exotic physics.</p>oai:cds.cern.ch:28445732022
spellingShingle Theory Colloquia
Kamionkowski, Marc
The cosmic optical background excess, line-intensity mapping
title The cosmic optical background excess, line-intensity mapping
title_full The cosmic optical background excess, line-intensity mapping
title_fullStr The cosmic optical background excess, line-intensity mapping
title_full_unstemmed The cosmic optical background excess, line-intensity mapping
title_short The cosmic optical background excess, line-intensity mapping
title_sort cosmic optical background excess, line-intensity mapping
topic Theory Colloquia
url http://cds.cern.ch/record/2844573
work_keys_str_mv AT kamionkowskimarc thecosmicopticalbackgroundexcesslineintensitymapping
AT kamionkowskimarc cosmicopticalbackgroundexcesslineintensitymapping

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