A BeppoSAX observation of 3C273: broadband spectrum and detection of a low-energy absorption feature

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dc.creatorGrandi, P.
dc.creatorGuainazzi, M.
dc.creatorMineo, T.
dc.creatorParmar, A. N.
dc.creatorFiore, F.
dc.creatorMatteuzzi, A.
dc.creatorNicastro, F.
dc.creatorPerola, G. C.
dc.creatorPiro, L.
dc.creatorCappi, M.
dc.creatorCusumano, G.
dc.creatorFrontera, F.
dc.creatorGiarrusso, S.
dc.creatorPalazzi, E.
dc.creatorPiraino, S.
dc.date1997-07-07
dc.date.accessioned2026-07-07T02:23:46Z
dc.date.available2026-07-07T02:23:46Z
dc.descriptionWe report the results of a 3C273 observation performed during the Science Verification Phase (SVP) of the BeppoSax satellite. The broad-band spectrum is well represented by a power-law between 1 keV and 200 keV. The spectral slope is flat (Γ~1.6) with a weak emission line at ~ 6.4 keV (rest frame) of EW ~ 30 eV. Below 1 keV, a deviation from a power-law due to an absorption feature plus a soft component is present. This is the first time that a feature in absorption at ~ 0.5 keV (observer frame) is unambiguously detected in 3C273.
dc.description4 pages. Accepted for publication in A&A (Letters)
dc.identifierhttps://arxiv.org/abs/astro-ph/9707073
dc.identifierhttp://arxiv.org/abs/astro-ph/9707073
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11375
dc.subjectAstrophysics
dc.titleA BeppoSAX observation of 3C273: broadband spectrum and detection of a low-energy absorption feature
dc.typetext

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