Probing the circumnuclear absorbing medium of the buried AGN in NGC 1068 through NuSTAR observations

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dc.contributor.authorZaino, A.
dc.contributor.authorBianchi, S.
dc.contributor.authorMarinucci, A.
dc.contributor.authorMatt, G.
dc.contributor.authorBauer, Franz Erik
dc.contributor.authorBrandt, W. N.
dc.contributor.authorGandhi, P.
dc.contributor.authorGuainazzi, M.
dc.contributor.authorIwasawa, K.
dc.contributor.authorPuccetti, S.
dc.contributor.authorRicci, Claudio
dc.contributor.authorWalton, D. J.
dc.date.accessioned2021-09-29T15:59:39Z
dc.date.available2021-09-29T15:59:39Z
dc.date.issued2019
dc.description.abstractWe present the results of the latest NuSTAR monitoring campaign of the Compton-thick Seyfert 2 galaxy NGC 1068, composed of four ∼50 ks observations performed between 2017 July and 2018 February to search for flux and spectral variability on time-scales from 1 to 6 months. We detect one unveiling and one eclipsing event with time-scales less than 27 and 91 d, respectively, ascribed to Compton-thick material with N H = (1.8 ± 0.8) × 10 24 and ≥ (2.4 ± 0.5) × 10 24 cm −2 moving across our line of sight. This gas is likely located in the innermost part of the torus or even further inward, thus providing further evidence of the clumpy structure of the circumnuclear matter in this source. Taking advantage of simultaneous Swift–XRT observations, we also detected a new flaring ULX, at a distance d ∼ 30 arcsec (i.e. ∼2 kpc) from the nuclear region of NGC 1068, with a peak X-ray intrinsic luminosity of (3.0 ± 0.4) × 10 40 erg s −1 in the 2–10 keV band.
dc.format.extent13 páginas
dc.fuente.origenOUP
dc.identifier.doi10.1093/mnras/staa107
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9114154
dc.identifier.urihttps://doi.org/10.1093/mnras/staa107
dc.identifier.wosidWOS:000518143200058
dc.information.autorucInstituto de astrofísica ; Bauer, Franz Erik ; 0000-0002-8686-8737 ; 1007961
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final3884
dc.pagina.inicio3872
dc.publisherOUP
dc.revistaMON NOT R ASTRON SOCes_ES
dc.revistaMonthly Notices of the Royal Astronomical Society
dc.rightsacceso restringido
dc.titleProbing the circumnuclear absorbing medium of the buried AGN in NGC 1068 through NuSTAR observationses_ES
dc.typeartículo
dc.volumen492
sipa.codpersvinculados1007961
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