J/ApJ/846/44ivo://CDS.VizieR/J/ApJ/846/44doi:10.26093/cds/vizier.18460044CDSOfek E.O.2018-09-25T12:04:24Z2018-05-28T10:32:28ZCDS support team

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

cds-question@unistra.frradio-sourcesgalaxiesredshiftedradio-continuum-emissionx-ray-sourcesThe localization of the repeating fast radio burst (FRB), FRB 121102, suggests that it is associated with a persistent radio-luminous compact source in the FRB host galaxy. Using the FIRST radio catalog, I present a search for luminous persistent sources in nearby galaxies, with radio luminosities >10% of the FRB 121102 persistent source luminosity. The galaxy sample contains about 30% of the total galaxy g-band luminosity within <108Mpc, in a footprint of 10600deg^2^. After rejecting sources likely due to active galactic nuclei activity or background sources, I am left with 11 candidates that are presumably associated with galactic disks or star-formation regions. At least some of these candidates are likely to be due to chance alignment. In addition, I find 85 sources within 1" of galactic nuclei. Assuming that the radio persistent sources are not related to galactic nuclei and that they follow the galaxy g-band light, the 11 sources imply a 95% confidence upper limit on the space density of luminous persistent sources of <~5x10^-5^Mpc^-3^, and that at any given time only a small fraction of galaxies host a radio-luminous persistent source (<~10^-3^L_*_^-1^). Assuming a persistent source lifetime of 100 years, this implies a birth rate of <~5x10^-7^yr^-1^Mpc^-3^. Given the FRB volumetric rate, and assuming that all FRBs repeat and are associated with persistent radio sources, this sets a lower limit on the rate of FRB events per persistent source of >~0.8yr^-1^. I argue that these 11 candidates are good targets for FRB searches and I estimate the FRB event rate from these candidates.2017ApJ...846...44Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/846/44CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)VII/238 : HYPERLEDA. II. Homogenized HI data (Paturel+, 2003)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)J/AJ/127/2031 : Catalog of neighboring galaxies (Karachentsev+, 2004)J/ApJ/703/370 : Radio SNRs in nearby galaxies (Chomiuk+, 2009)J/ApJ/737/45 : Variable 1.4GHz radio sources from NVSS and FIRST (Ofek+, 2011)J/ApJ/740/65 : VLA search for 5GHz radio transients (Ofek+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/846/44https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/846/44http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/846/44https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/846/44https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/846/44http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/846/44GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/846/44/table1 (*Luminous persistent radio source candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/846/44/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/846/44/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/846/44/table1?GETtext/xml+votable180.050000true141.99284167-2.433041670.0055555555555555566/2 4557 4739 4967 4985 4990 5100 5281 5289 5342 5413 5517 5671 5683 5684 5701 5703 5758 6033 6068 6213 6441 6501 6654 8469 8550 8673 8679 9219 9416 10296 10332 10381 10384 10391 10393 10440 10456 10485 10517 10551 10630 10759 10760 10869 10954 11042 17253 17255 17374 17623 17745 17776 17817 17857 18121 18901 19298 19515 23185 25519 25989 25992 26077 26099 26106 26108 26282 26405 26452 26457 26474 26563 26588 26621 27268 27314 27394 27458 27470 27643 27672 27709 27714 27725 27726 27743 27802 27803 27872 28075 28090 28126 28143 28230 28249 28251 28253 28274 28335 28365 28392 28416 28526 28538 28569 28585 36759https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/846/44?format=asciiRadioX-raydefaultJ/ApJ/846/44/table1*Luminous persistent radio source candidatesCommCommentmeta.notecharfNVSS[2/159]? NVSS radio flux (3)mJyphot.flux.density;em.radio.750-1500MHzfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainf_pos[b] b = best candidates (11 occurrences)meta.codecharfp[1.4/21.1] FIRST peak radio fluxmJyphot.flux.density;em.radio.750-1500MHzfloate_fp[0.1/0.3] Error in fpmJystat.errorfloatLum[0.1/1] Luminosity (2)phys.luminosityfloatz[0.01/0.03] Spatially coincident galaxy redshiftsrc.redshiftfloattheta[0.02/223.5] Angular distance between radio source and galaxyarcsecpos.angDistancefloate_fNVSS[0.4/5.1]? Error in fNVSSmJystat.errorfloatnullablechi[-5.4/30.4]? FIRST to NVSS variability (4)stat.fit.chi2floatnullableXc[13/152.4]? ROSAT count rate (5)ct/ksphot.count;em.X-rayfloatnullableFIRSTDisplay the FIRST data from Helfand+, 2015, VIII/92 within 0.1"meta.ref.urlcharNVSSDisplay the NVSS data from Condon+, 1998, VIII/65 within 15"meta.ref.urlcharRASSDisplay the ROSAT data from Voges+, 1999, IX/10 and IX/29 within 35"meta.ref.urlchar