1. RRI Digital Repository
  2. 04. Astronomy and Astrophysics
  3. Research Papers (A&A)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8339
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDutta, Samik-
dc.contributor.authorGupta, Nayantara-
dc.date.accessioned2024-10-17T05:56:59Z-
dc.date.available2024-10-17T05:56:59Z-
dc.date.issued2024-10-04-
dc.identifier.citationThe Astrophysical Journal, 2024, Vol. 974, p56en_US
dc.identifier.urihttp://hdl.handle.net/2289/8339-
dc.descriptionOpen Accessen_US
dc.description.abstractThe Large High Altitude Air Shower Observatory (LHAASO) has detected very-high-energy gamma rays from the low-ionization nuclear emission-line region galaxy NGC 4278, which has a low-luminosity active galactic nucleus (LLAGN) and symmetric, mildly relativistic S-shaped twin jets detected by radio observations. Few LLAGNs have been detected in gamma rays due to their faintness. Earlier, several radio-emitting components were detected in the jets of NGC 4278. We model their radio emission with synchrotron emission of ultra-relativistic electrons to estimate the strength of the magnetic field inside these components within a time-dependent framework after including the ages of the different components. We show that the synchrotron and synchrotron self-Compton emission by these components cannot explain the Swift X-ray data and the LHAASO gamma-ray data from NGC 4278. We suggest that a separate component in one of the jets is responsible for the high-energy emission, whose age, size, magnetic field, and the spectrum of the ultra-relativistic electrons inside it have been estimated after fitting the multiwavelength data of NGC 4278 with the sum of the spectral energy distributions from the radio components and the high-energy component. We note that the radio components of NGC 4278 are larger than the high-energy component, which has also been observed in several high-luminosity active galactic nuclei.en_US
dc.language.isoenen_US
dc.publisherIOP Publishing Ltd.en_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2024ApJ...974...56D/abstracten_US
dc.relation.urihttps://arxiv.org/abs/2405.15657en_US
dc.relation.urihttp://dx.doi.org/10.3847/1538-4357/ad6d65en_US
dc.relation.urihttps://inspirehep.net/literature/2790050en_US
dc.rights2024 IOP Publishing Ltden_US
dc.titleMultiple Emission Regions in Jets of the Low-Luminosity Active Galactic Nucleus in NGC 4278en_US
dc.typeArticleen_US
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
2024_ApJ_974_56.pdfOpen Access722.6 kBAdobe PDFView/Open
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.