J/A+A/640/A31ivo://CDS.VizieR/J/A+A/640/A31doi:10.26093/cds/vizier.36400031CDSPanagiotou C.Walter R.2021-03-29T09:07:05Z2020-08-06T08:13:18ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fractive-galactic-nucleix-ray-sourcesThe reflection hump is a prominent feature in the hard X-ray spectrum of active galactic nuclei (AGN). Its exact shape and its correlation to other quantities provide valuable information about the inner and outer regions of an AGN. Our main goal is to study the reflection hump in a large sample of nearby AGN. We aim to investigate the evolution of reflection with absorption and its correlation with the spectral index. We analysed archived NuSTAR observations of the 70-month BAT catalogue AGN. By performing a detailed spectral analysis, we were able to constrain the spectral parameters and to investigate the reflection emission in a large sample of individual sources. The reflection strength was found to be strongly correlated with the power-law slope in unabsorbed sources, pointing towards disc reflection for these sources. Different possible explanations were tested and the most likely one is that the corona is moving either towards or away from the disc with a moderately relativistic velocity. An R-Gamma correlation was not detected for absorbed sources. In addition, these AGN feature harder spectra, suggesting intrinsic differences between the two classes or a slab geometry for the X-ray source.2020A&A...640A..31Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/640/A31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/swift : Swift Master Catalog (HEASARC, 2004-)IX/58 : 2SXPS Swift X-ray telescope point source catalogue (Evans+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/640/A31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/640/A31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/640/A31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/640/A31https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/640/A31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/640/A31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/640/A31/table24 (Sources characteristics and best-fit results (tables 2 and 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/640/A31/table24?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/640/A31/table24?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/640/A31/table24?GETtext/xml+votable180.050000true0.4419-76.9540.0055555555555555566/134 893 941 1263 1405 2251 2564 3309 3502 3771 4439 4488 4540 5097 5149 5514 5762 6097 6113 6665 6752 6923 7159 7184 7246 7386 7422 7502 7628 7642 7713 7952 8029 8071 8085 8116 8216 8299 8812 8922 9894 10118 10454 10847 10912 10977 10991 11388 11416 11490 11683 11886 12154 12254 12632 13179 13186 13707 14534 14541 14653 14702 14777 14858 14933 14960 15015 15481 15825 15876 16301 16333 16962 17408 17727 17795 17814 17846 18484 18524 18683 18897 19283 19296 19367 19567 19767 21016 21036 21088 21450 21785 21996 22365 22890 23323 24123 24699 24848 25035 25090 25182 25572 25580 25585 25907 25965 26041 26071 26148 26393 26493 26861 27382 27477 27486 27501 27504 27767 27803 28060 28275 28350 28517 28535 28593 28626 28719 28848 29466 29574 29795 29906 30140 31509 31833 32028 32143 32630 32658 32931 32986 33034 33038 33282 33394 33930 34034 34294 34412 34458 34730 34768 34881 34907 35049 35714 35717 36005 36015 36775 36785-36786 36890 37650 38268 38653 38916 38948 39149 39295 39487 39778 40410 40818 41014 41059 41423 41679 41736 41929 41982 42016 42852 43064 43262 43412 43546 43649 43806 43877 43983 44017 44507 44526 44892 45222 45735 45883 46101 46124 46544 46615 46987 47047 47154 47169 47222 47245 47308 48394 48798 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/640/A31?format=asciiX-raydefaultJ/A+A/640/A31/table24Sources characteristics and best-fit results (tables 2 and 4)zRedshift (3)src.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSWIFTSource name in the Swift/BAT 70-month catalog (1)meta.id;meta.maincharn_SWIFT[+] Note on SWIFT (2)meta.notecharONameCounterpart source namemeta.idcharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainBATclassBAT class in the 70-month catalogmeta.code.classintNHclassClass based on N_H classification (6)meta.code.classcharl_NHLimit flag on N_Hmeta.code.errorcharNHColumn density of the absorbing matter1e+22cm**-2phys.columnDensityfloatE_NH? Upper error on N_H1e+22cm**-2stat.error;stat.maxfloatnullablee_NH? Lower error on N_H1e+22cm**-2stat.errorfloatnullablef_GammaFlag f indicating Gamma was kept fixed during the fit (4)meta.codecharGammaBest-fit power-law slopespect.indexfloatE_Gamma? Upper error on Gammastat.error;stat.maxfloatnullablee_Gamma? Lower error on Gammastat.errorfloatnullablel_RLimit flag on Rmeta.code.errorcharRBest-fit reflection parameterstat.fit.paramfloatE_R? Upper error on Rstat.error;stat.maxfloatnullablee_R? Lower error on Rstat.errorfloatnullablel_EWLimit flag on EWmeta.code.error;spect.line.eqWidthcharEWEquivalent width of Fe K-alpha lineeVspect.line.eqWidthintE_EW? Upper error on EW (5)eVstat.error;stat.maxintnullablee_EW? Lower error on EW (5)eVstat.error;spect.line.eqWidthintnullablel_EcLimit flag on Ecmeta.code.errorcharEcBest-fit high-energy cutoffkeVem.energyintE_Ec? Upper error on EckeVstat.error;stat.maxintnullablee_Ec? Lower error on EckeVstat.errorintnullablechi2chi-square statisticstat.fit.chi2floatdofDegrees of freedom of the fitstat.fit.dofintSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/640/A31/table3Observational detailsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSWIFTSource name in the Swift/BAT 70-month catalogmeta.id;meta.maincharobsIdNuSTAR observation IDmeta.id;obsDateStart date of each observation (MJD)dtime.start;obsdoubleExpExposure timekstime.duration;obs.exposurefloat