J/ApJS/281/33ivo://CDS.VizieR/J/ApJS/281/33CDSArendt R.G.Yusef-Zadeh F.Heywood I.2026-08-10T07:28:49Z2026-08-10T08:19:27ZCDS support team

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

cds-question@unistra.frgalactic-centerinterstellar-mediumradio-sourcesWe present a catalog of 1.28GHz radio filaments observed by MeerKAT over the innermost 200pc of the Galaxy (roughly +/-1:5), which includes the central molecular zone. The catalog is generated by repurposing software developed for the automated detection of filaments in solar coronal loops. There are two parts to the catalog. The first part, the main catalog, provides a point-by-point listing of locations and basic observational properties along each detected filament. The second part is a summary catalog that provides a listing of mean, median, or total values of various properties for each filament. Tabulated quantities include position, length, curvature, brightness, and spectral index. The catalogs contain a heterogeneous mix of filamentary structures, including nonthermal radio filaments, and parts of supernova remnants and thermally emitting regions (e.g., HII regions). We discuss criteria for selecting useful subsamples of filaments from the catalogs, and some of the details encountered in examining filaments or selections of filaments from the catalogs.2025ApJS..281...33Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/281/33CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/128/1646 : The Galactic Center region at 330MHz (Nord+, 2004)J/ApJS/155/421 : Survey of Galactic Center region at 20cm (Yusef-Zadeh+, 2004)J/ApJS/177/515 : 6cm and 20cm survey of Galactic Center (Law+, 2008)J/ApJS/213/22 : NIR polarimetry in Central Molecular Zone (Yoshikawa+, 2014)J/PASJ/67/90 : Central Molecular Zone in H^13^CO^+^ (Tsuboi+, 2015)J/A+A/586/A50 : Central Molecular Zone H2CO temperature maps (Ginsburg+, 2016)J/ApJS/244/35 : VLA observations of the Central Molecular Zone (Lu+, 2019)J/ApJ/894/L14 : ALMA obs. of massive clouds in the CMZ (Lu+, 2020)J/A+A/668/A183 : CMZ cloud complexes datacubes (Busch+, 2022)J/ApJS/261/13 : High-vel. dispersion compact clouds in the CMZ (Oka+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/281/33https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/281/33http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/281/33https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/281/33https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/281/33http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/281/33GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/281/33/table2 (Main catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/33/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/33/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/33/table2?GETtext/xml+votable180.050000true265.54042817-29.35061230.005555555555555556Cone search capability for table J/ApJS/281/33/table3 (Summary catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/33/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/33/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/33/table3?GETtext/xml+votable180.050000true265.31789887-29.3371165870.0055555555555555565/7206-7207 6/28818-28819 28848-28849 28852-28853https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/281/33?format=asciiRadiodefaultJ/ApJS/281/33/table2Main catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[0/9999] ID numbermeta.id;meta.mainintx[14.6/10088.6] x positionpixpos.cartesian.x;instr.detdoubley[10.6/10477.3] y positionpixpos.cartesian.y;instr.detdoubleGLON[-2.1/1.5] Galactic longitudedegpos.galactic.lonindexedGLAT[-1.5/1.2] Galactic latitudedegpos.galactic.latindexedFlux[-0.0002/0.0092]? Flux density, I_{nu}_Jy/beamphot.flux.density;em.radio.750-1500MHzdoublenullableLength[0/1161] Cumulative lengthpixphys.angSizedoublefg[-5.5e+10/9.3e+11] Cross-sectional gaussian fit amplitude, f_g_Jy/beamphot.flux.density;src.var.amplitude;em.radio.750-1500MHzdoubledelg[-6.6e+13/1.4e+13] Cross-sectional gaussian fit offset, {delta}_g_arcsecpos;arith.diffdoublesigg[0/4.8e+13]? Cross-sectional gaussian fit sigma, {sigma}_g_arcsecstat.stdevdoublenullablealpha[-5.2/3.7]? Spectral indexspect.indexdoublenullabler0[30/883315]? Local radius of curvaturearcsecphys.angSize;srcdoublenullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedJ/ApJS/281/33/table3Summary catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[0/9999] ID numbermeta.id;meta.mainintprimaryx[17.4/10086.4] Midpoint x positionpixpos.cartesian.x;instr.detdoubley[27/10463] Midpoint y positionpixpos.cartesian.y;instr.detdoubleGLON[-2.1/1.5] Midpoint Galactic longitudedegpos.galactic.lonGLAT[-1.5/1.2] Midpoint Galactic latitudedegpos.galactic.latFlux[-1.1e-05/0.05] Median flux density, I_{nu}_Jy/beamphot.flux.density;em.radio.750-1500MHz;stat.mediandoubleLength[33/1278.2] Total lengtharcsecphys.angSizefloatPAeq[0/180] Position angle, {theta}_e_ (equatorial)degpos.posAngfloatPAgal[0/180] Position angle, {theta}_g_ (Galactic)degpos.posAngfloatRad1[32/3000] Radius of curvature (3-point fit)arcsecphys.angSize;srcfloatRad2[33/1119467] Radius of curvature (full fit)arcsecphys.angSize;srcdoubleRad3[32.7/5522] Median local radius of curvaturearcsecphys.angSize;stat.medianfloatfg[-0.05/0.08] Median cross-sectional gaussian fit amplitudeJy/beamphot.flux.density;src.var.amplitude;em.radio.750-1500MHzdoublesigg[0/9.1] Median cross-sectional gaussian fit sigmaarcsecstat.stdev;stat.medianfloatalpha[-2.7/2.7]? Median spectral indexspect.indexdoublenullablee_alpha[0.003/2.3]? Standard deviation of spectral indexstat.error;spect.indexdoublenullableo_alpha[0/1021] Number of point for spectral indexmeta.number;spect.indexintNpNumber of points along a filament (link to Table 3)meta.numberintnullableda/dL[-0.9/0.5] Linear gradient of spectral indexarcsec**-1arith.grad;spect.indexdouble_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexed