J/AJ/169/188ivo://CDS.VizieR/J/AJ/169/188doi:10.26093/cds/vizier/be-59-5wCDSGanguly P.Rani P.Dewangan G.C.2026-07-02T11:45:32Z2026-01-12T12:53:48ZCDS support team

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

cds-question@unistra.frultraviolet-photometryx-ray-sourcesvisible-astronomygalaxiesredshiftedWe present high-resolution near-ultraviolet (NUV) and far-ultraviolet (FUV) deep imaging of the field around the Seyfert galaxy IC 4329A based on five observations performed with the Ultra-Violet Imaging Telescope (UVIT) onboard AstroSat. The long exposures of 82.9ks in the NUV (N245M; {lambda}mean=2447{AA}; {Delta}{lambda}=270{AA}) and 92.2ks in the FUV (F154W;{lambda}mean=1541{AA}; {Delta}{lambda}=380{AA}) bands constitute the deepest observations with 5{sigma} detection limits of AB magnitudes mNUV=26.2 and mFUV=25.7. Leveraging UVIT's excellent angular resolution (FWHM~1.2"-1.8", we performed a detailed analysis of the IC 4329A field and detected (above the 5{sigma} significance level) a total of 4437 and 456 sources in the NUV and FUV bands, respectively. A large number of these detected sources were previously unknown. We performed astrometry and photometry on all detected sources. By cross-matching our catalog with the Gaia-DR3 and XMM-Newton DR12 catalogs, we found 651 optical and 97 X-ray counterparts of our sources. Additionally, we explored the UV variability of point sources, identifying 28 NUV sources as variable with a significance above the 2.5{sigma} level. Of these, only three sources exhibited variability in the FUV band. Utilizing the NUV and Gaia fluxes, we determined that two previously cataloged white dwarf candidates are misclassified. Furthermore, we highlight galaxies with atypical morphology, including ring-like structures, multiple compact central sources, bifurcating spiral arms, and so on. Follow- up optical spectroscopy and multiwavelength observations are imperative to further investigate the nature of the sources within this field.2025AJ....169..188Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/169/188CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/simbad : Simbad objects catalogue (M.Wenger 2000)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)IX/68 : XMM-Newton Serendipitous Source Catalogue 4XMM-DR12 (Webb+, 2023)IX/69 : XMM-Newton Serendipitous Source Catalogue 4XMM-DR13 (Webb+, 2023)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VII/294 : The Million Quasars (Milliquas) catalogue, version 8 (Flesch, 2023)J/AJ/132/1729 : Hubble Ultra Deep Field BVI-dropout sources (Beckwith+, 2006)J/ApJS/207/19 : Hard X-ray survey from Swift-BAT 2004-2010 (Baumgartner+, 2013)J/ApJ/766/60 : GALEX Time Domain Survey I. UV variable sources (Gezari+, 2013)J/A+A/638/A27 : Redshift database towards Shapley Superclust. (Quintana+, 2020)J/MNRAS/508/3877 : Catalogue of white dwarfs in Gaia EDR3 (Gentile+, 2021)J/ApJ/914/54 : Deep FUV obs. of NGC6946, NGC628 & NGC5457 (Yadav+, 2021)J/ApJS/264/40 : The AstroSat UV GOODS-N Deep Field cat. (AUDFn) (Mondal+, 2023)J/ApJS/275/28 : The AstroSat UV Deep Field south. I. GOODS-S (Saha+, 2024)J/A+A/687/A313 : 1UVA catalog of time variable UV sources (Buehler+, 2024)J/ApJS/275/34 : UVIT DR1, comprehensive catalog of UVIT obs. (Piridi+, 2024)http://astrobrowse.issdc.gov.in/astro_archive/archive/Home.jsp : AstroSat datahttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/169/188https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/169/188http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/169/188https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/169/188https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/169/188http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/169/188GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/169/188/table9 (Final catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/169/188/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/169/188/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/169/188/table9?GETtext/xml+votable180.050000true207.27846611-30.100730.0055555555555555566/43876-438771.9867573869263685e-19 1.4343121495367234e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/169/188?format=asciiX-rayUVOpticaldefaultJ/AJ/169/188/table9Final catalogueID[1/4437] Source identification number in the cataloguemeta.id;meta.mainintNUVmag[15.1/26] Estimated NUV AB magnitudemagphot.mag;em.UV.200-300nmfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAdeg-NUVRight ascension in NUV (J2000)degpos.eq.ra;meta.mainDEdeg-NUVDeclination in NUV (J2000)degpos.eq.dec;meta.maina-NUV[0/49.54] Semi-major axis of the elliptical Kron aperture, NUV (1)arcsecphys.angSize.smajAxis;instr.fov;em.UV.200-300nmfloatb-NUV[0/28.31] Semi-minor axis of the elliptical Kron aperture, NUV (1)arcsecphys.angSize.sminAxis;instr.fov;em.UV.200-300nmfloatPA-NUVPosition angle of the elliptical Kron aperture, NUV (1)degpos.posAng;instr.fov;em.UV.200-300nmfloatFlux-NUV[7.3e-19/1.71e-14] Estimated NUV flux in erg/s/cm2/A1e+07W.m**-3phot.flux;em.UV.200-300nmdoublee_Flux-NUV[1.19e-19/1.23e-17] Uncertainty in Flux-NUV1e+07W.m**-3stat.error;phot.flux;em.UV.200-300nmdoublee_NUVmag[7.7e-4/0.181] Uncertainty in NUVmagmagstat.error;phot.mag;em.UV.200-300nmdoubleNUV-flag[0/1] Extraction Flag for NUV source (2)meta.codeintCategory[0/1] Source category (3)meta.codeintSNR-NUV[5/1390] Signal-to-noise of source in NUVstat.snr;em.UV.200-300nmfloatFvar-NUV[0/0.68] Fractional excess variability amplitude for the source in the NUV bandsrc.var.amplitude;arith.ratio;em.UV.200-300nmfloate_Fvar-NUV[0/0.22] 1{sigma} error on Fvar-NUVstat.error;src.var.amplitude;em.UV.200-300nmdoubleRAdeg-FUV? Right ascension in FUV (J2000)degpos.eq.ra;em.UV.100-200nmnullableDEdeg-FUV? Declination in FUV (J2000)degpos.eq.dec;em.UV.100-200nmnullablea-FUV[0/51.21]? Semi-major axis of the elliptical Kron aperture, FUV (1)arcsecphys.angSize.smajAxis;instr.fov;em.UV.100-200nmfloatnullableb-FUV[0/28.2]? Semi-minor axis of the elliptical Kron aperture, FUV (1)arcsecphys.angSize.sminAxis;instr.fov;em.UV.100-200nmfloatnullablePA-FUV? Position angle of the elliptical Kron aperture, FUV (1)degpos.posAng;instr.fov;em.UV.100-200nmfloatnullableFlux-FUV[4.1e-18/9.35e-15]? Estimated FUV flux in erg/s/cm2/A1e+07W.m**-3phot.flux;em.UV.100-200nmdoublenullablee_Flux-FUV[6.71e-19/2.1e-17]? Uncertainty in Flux-FUV1e+07W.m**-3stat.error;phot.flux;em.UV.100-200nmdoublenullableFUVmag[16.6/25.2]? Estimated FUV AB magnitudemagphot.mag;em.UV.100-200nmfloatnullablee_FUVmag[2.4e-3/0.185]? Uncertainty in FUVmagmagstat.error;phot.mag;em.UV.100-200nmdoublenullableSNR-FUV[5/427]? Signal-to-noise of source in FUVstat.snr;em.UV.100-200nmfloatnullableFvar-FUV[0/0.27]? Fractional excess variability amplitude for the source in the FUV bandsrc.var.amplitude;arith.ratio;em.UV.100-200nmfloatnullablee_Fvar-FUV[0/0.1]? 1{sigma} error on Fvar-FUVstat.error;src.var.amplitude;em.UV.100-200nmfloatnullableFUV-NUV[-2.4/5.14]? FUV-NUV magnitudemagphot.color;em.UV.200-300nm;em.UV.100-200nmdoublenullableGaiaDR3? Gaia DR3 (I/355) source IDmeta.id.crossnullableRAdeg-Gaia? Right Ascension, Gaia DR3, (ICRS at Epoch=2016.0)degpos.eq.ra;em.optnullableDEdeg-Gaia? Declination, Gaia DR3, (ICRS at Epoch=2016.0)degpos.eq.dec;em.optnullableFlux-Gaia[44.7/3.33e+6]? Flux of the source in Gaia DR3 catalogue in e-/sct/sphot.flux.density;em.optdoublenullablee_Flux-Gaia[0.8/4900]? Uncertainty in Flux-Gaia in e-/sct/sstat.error;phot.flux.density;em.optdoublenullableGmag[9.49/21.7]? AB magnitude of the source calculated from Flux-Gaia (4)magphot.mag;em.optfloatnullableGaia-Class[0/1]? Category of the source according to Gaia proper motion (3)meta.codeintnullablepmTot[0/107]? Gaia DR3 total proper motionmas/yrpos.pmdoublenullable4XMM? 4XMM DR12 (IX/68) source indexmeta.id.crossnullableRAdeg-4XMM? Right ascension, 4XMM DR12 (J2000)degpos.eq.ra;em.X-raynullableDEdeg-4XMM? Declination, 4XMM DR12 (J2000)degpos.eq.dec;em.X-raynullableFlux-4XMM[3.4e-15/9.3e-11]? Flux of the source in 4XMM DR12 catalogue in erg/s/cm2mW.m**-2phot.flux;em.X-raydoublenullablee_Flux-4XMM[2.7e-15/3.4e-13]? Uncertainty in Flux-4XMMmW.m**-2stat.error;phot.flux;em.X-raydoublenullablez[0.01/1.44]? Redshiftsrc.redshiftdoublenullablee_z[8.3e-5/3e-4]? Uncertainty in zstat.error;src.redshiftdoublenullable