INTIBISAG2 ivo://nasa.heasarc/intibisag2 NASA/GSFC HEASARC Malizia et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov AGN In the most recent IBIS survey based on observations performed during the first 1000 orbits of INTEGRAL, there are listed 363 high-energy emitters firmly associated with AGN, 107 of which are reported here for the first time. The authors have used X-ray data to image the IBIS 90% error circle of all the AGN in the sample of 107, in order to obtain the correct X-ray counterparts, locate them with arcsecond accuracy and therefore pinpoint the correct optical counterparts. This procedure has led to the optical and spectral characterization of the entire sample. This new set consists of 34 broad line or type 1 AGN, 47 narrow line or type 2 AGN, 18 blazars and 8 sources of unknown class. These eight sources have been associated with AGN from their positional coincidence with 2MASX/Radio/X-ray sources. Seven high-energy emitters have also been included since they are considered to be good AGN candidates. Spectral analysis has been already performed on 55 objects and the results from the most recent and/or best statistical measurements have been collected. For the remaining 52 sources, the authors report the spectral analysis for the first time in this work. They have been able to obtain full X-ray coverage of the sample making use of data from Swift/XRT, XMM-Newton and NuSTAR. In addition to the spectral characterization of the entire sample, this analysis has enabled the authors to identify peculiar sources and by comparing different data sets, highlight flux variability in the 2-10 keV and 20-40 keV bands. In the reference paper, the authors present the X-ray and optical follow-up work on 107 new AGN recently detected by INTEGRAL. Fortunately, they have been able to obtain full X-ray coverage of the entire sample making use of data from the Swift/XRT, Newton-XMM, and NuSTAR archives or through Swift/XRT follow-up observations that they triggered. The HEASARC notes that this table of AGN newly detected by INTEGRAL and not included in the original INTEGRAL IBIS AGN Catalog (Malizia et al. 2012, MNRAS, 426, 1750, available at the HEASARC as the INTIBISAGN table) actually contains 108 AGN plus 8 candidate AGN, for a total of 116 objects, rather than the 107 plus 7 candidate AGN totalling 114 objects that are quoted in the abstract of the reference paper (and stated above). The reason for this discrepancy is not known to the HEASARC. This table was created by the HEASARC in November 2017 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/460/19">CDS Catalog J/MNRAS/460/19</a> files tablea1.dat and refs.dat. This is a service provided by NASA HEASARC . 2016MNRAS.460...19M https://heasarc.gsfc.nasa.gov/W3Browse/all/intibisag2.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=intibisag2& GET text/xml 180 99999 true 8.56958333 -79.08888889 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=intibisag2 GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_intibisag2&Action=More+Options&Action=Parameter+Search&ConeAdd=1 GALAXY CATALOG 0.0833333333333333 X-ray public intibisag2 INTEGRAL IBIS AGN Catalog Update name Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable redshift Redshift src.redshift double nullable source_type Classification src.class char nullable sb_flux Soft (2-10keV) Flux erg/s/cm^2 phot.flux;em.X-ray.medium double nullable sb_flux_max Upper Value of Soft Flux If Range erg/s/cm^2 phot.flux;em.X-ray.medium;stat.max;stat.max double nullable hb_flux_limit Limit Flag for Hard (20-100keV) Flux meta.code;phot.flux;em.X-ray.hard char nullable hb_flux Hard (20-100keV) Flux erg/s/cm^2 phot.flux;em.X-ray.hard double nullable ref_bibcode Reference BibCode meta.bib.bibcode char nullable photon_index_neg_err Lower Error for Gamma stat.error;spect.index;em.X-ray double nullable xrt_significance XRT Detection Significance in the 0.3-10keV Band (Sigma) stat.snr;phot.flux;em.X-ray double nullable nh_neg_err Lower Error for Intrinsic Column Density cm^-2 stat.error;phys.columnDensity double nullable data_source Instrument Name meta.code;instr char nullable source_flags Flags [fi] Indicates Notes for the Source meta.code;src char nullable exposure_flag Flag [dg] Indicates Data Origin: d=XMM-Newton data, g=NuSTAR data meta.code;time.duration;obs.exposure char nullable photon_index_pos_err Upper Error for Gamma stat.error;spect.index;em.X-ray double nullable nh_limit Limit Flag for Intrinsic Column Density meta.code;phys.columnDensity char nullable sb_flux_flag Note Concerning Soft (2-10keV) Flux meta.code;phot.flux;em.X-ray.medium char nullable nh_pos_err Upper Error for Intrinsic Column Density cm^-2 stat.error;phys.columnDensity double nullable ref_authors Reference Author(s) meta.bib.author char nullable bii Galactic Latitude degree pos.galactic.lat double nullable photon_index_flag Flag [f] Indicates Fixed Gamma Value meta.code;spect.index;em.X-ray char nullable photon_index Gamma Photon Index spect.index;em.X-ray double nullable class Browse Object Classification src.class short nullable nh Intrinsic Column Density cm^-2 phys.columnDensity double nullable ref_comments Reference Comments meta.note char nullable source_type_flags Flags [eh] Indicate Notes Concerning Source Type Classification meta.code;src.class char nullable exposure Exposure Time s time.duration;obs.exposure int nullable alt_name Alternative Designation meta.id char nullable lii Galactic Longitude degree pos.galactic.lon double nullable candidate_flag Flag [c] Indicates AGN Candidate meta.code;src char nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable