J/A+A/588/A70ivo://CDS.VizieR/J/A+A/588/A70doi:10.26093/cds/vizier.35880070CDSBoissay R.Ricci C.Paltani S.2017-12-18T07:57:20Z2016-07-15T13:05:08ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleix-ray-sourcesAn excess of X-ray emission below 1keV, called soft excess, is detected in a large fraction of Seyfert 1-1.5s. The origin of this feature remains debated, as several models have been suggested to explain it, including warm Comptonization and blurred ionized reflection. In order to constrain the origin of this component, we exploit the different behaviors of these models above 10keV. Ionized reflection covers a broad energy range, from the soft X-rays to the hard X-rays, while Comptonization drops very quickly in the soft X-rays. We present here the results of a study done on 102 Seyfert 1s (Sy 1.0, 1.2, 1.5 and NLSy1) from the Swift BAT 70-Month Hard X-ray Survey catalog. The joint spectral analysis of Swift/BAT and XMM-Newton data allows a hard X-ray view of the soft excess that is present in about 80% of the objects of our sample. We discuss how the soft-excess strength is linked to the reflection at high energy, to the photon index of the primary continuum and to the Eddington ratio. In particular, we find a positive dependence of the soft excess intensity on the Eddington ratio. We compare our results to simulations of blurred ionized-reflection models and show that they are in contradiction. By stacking both XMM-Newton and Swift/BAT spectra per soft-excess strength, we see that the shape of reflection at hard X-rays stays constant when the soft excess varies, showing an absence of link between reflection and soft excess. We conclude that the ionized-reflection model as the origin of the soft excess is disadvantaged in favor of the warm Comptonization model in our sample of Seyfert 1s.2016A&A...588A..70Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/588/A70CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/207/19 : Hard X-ray survey from Swift-BAT 2004-2010 (Baumgartner+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/588/A70https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/588/A70http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/588/A70https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/588/A70https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/588/A70http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/588/A70GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/588/A70/tablea (List of the sources (table A1) and EPIC-PN and MOS XMM-Newton and Swift/BAT data analysis (table A2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/588/A70/tablea?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/588/A70/tablea?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/588/A70/tablea?GETtext/xml+votable180.050000true66.5029792-57.20047060.0055555555555555566/941 1121 1263 1405 1841 2221 3056 3309 4439 4488 6212 6977 7246 7642 7921 8071 8299 8922 9099 10707 10912 10927 11071 11388 11490 11898 14051 14858 14960 15351 15481 15658 16184 16301 17075 17448 17727 18524 18794 19283 19797 19883 19932 20489 20750 21245 22890 24120 25182 26148 26300 26650 27477 27721 28060 28275 28471 28517 28654 28719 28848 29466 29558 29574 29795 29906 32028 33716 33930 34065 34294 34414 34430 34768 34881 35741 36158 36775 36786 37650 38113 38268 39182 39295 39349 41423 41435 42179 42852 43105 43634 43806 43877 44448 44551 45779 46281 46831 47120 47169 48614 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/588/A70?format=asciiX-raydefaultJ/A+A/588/A70/tableaList of the sources (table A1) and EPIC-PN and MOS XMM-Newton and Swift/BAT data analysis (table A2)SimbadNameSimbad column added by the CDSmeta.idcharE_GAMMA? Error on GAMMA (upper value)stat.error;stat.maxfloatnullableSourceSource namemeta.id;meta.maincharGAMMA? GAMMA indexmeta.code;spect.indexfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Source[a] Note on Source (1)meta.notecharTypeSeyfert typesrc.classcharzRedshiftsrc.redshiftfloatNHGGalactic hydrogen column density (2)1e+20cm**-2phys.columnDensity;pos.galacticfloatObs.dateObservation date (soft X-ray observations)time.epoch;obsnullableObs.IDObservation ID (soft X-ray observations)meta.id;obsExpTimeNet exposure time (soft X-ray observations)kstime.duration;obs.exposure;src.netfloate_GAMMA? Error on GAMMA (lower value)stat.errorfloatnullableFCont? Continuum (2-10keV) flux1e-14W.m**-2phot.flux;em.X-rayfloatnullableE_FCont? Error on FCont (upper value)1e-14W.m**-2stat.error;stat.maxfloatnullablee_FCont? Error on FCont (lower value)1e-14W.m**-2stat.errorfloatnullableFSE? Soft (0.5-2keV) excess flux1e-14W.m**-2phot.flux;em.X-rayfloatnullableE_FSE? Error on FSE (upper value)1e-14W.m**-2stat.error;stat.maxfloatnullablee_FSE? Error on FSE (lower value)1e-14W.m**-2stat.errorfloatnullableModelModel used (3)instr.setup;meta.modelledcharr_Model[a-l] Reference for Model (4)meta.ref;pos.frame;meta.modelledcharq? Strength of the soft excess qstat.fit.paramfloatnullableE_q? Error on q (upper value)stat.error;stat.maxfloatnullablee_q? Error on q (lower value)stat.errorfloatnullableR? Reflection factor Rstat.fit.paramdoublenullableE_R? Error on R (upper value)stat.error;stat.maxdoublenullablee_R? Error on R (lower value)stat.errordoublenullablechi2? {chi}^2^ valuestat.valueintnullabledof? Degree of freedomstat.fit.dofintnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main