J/A+A/607/A43ivo://CDS.VizieR/J/A+A/607/A43doi:10.26093/cds/vizier.36070043CDSVarenius E.Costagliola F.Kloeckner H.-R.Aalto S.Spoon H.,Marti-Vidal I.Conway J.E.Privon C.Koenig S.2017-11-13T07:41:46Z2017-11-06T06:55:02ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyh-i-line-emissionThe galaxy NGC4418 harbours a compact (<20pc) core with a very high bolometric luminosity (~10^11^L_{sun}_). As most of the galaxy's energy output comes from this small region, it is of interest to determine what fuels this intense activity. An interaction with the nearby blue irregular galaxy VV655 has been proposed, where gas aquired by NGC4418 could trigger intense star formation and/or black hole accretion in the centre. We aim to constrain the interaction hypothesis by studying neutral hydrogen structures which could reveal tails and debris connecting NGC4418 to the nearby galaxy VV655. We present observations at 1.4GHz with the Very Large Array (VLA) of radio continuum as well as emission and absorption from atomic hydrogen. Gaussian distributions are fitted to observed HI emission and absorption spectra.We estimate the star formation rate (SFR) of NGC4418 and VV655 from the 1.4GHz radio emission and compare with estimates from archival 70um Herschel observations.2017A&A...607A..43Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/607/A43CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/607/A43https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/607/A43http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/607/A43https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/607/A43https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/607/A43http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/607/A43GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/607/A43/list (List of fits files)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/607/A43/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/607/A43/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/607/A43/list?GETtext/xml+votable180.050000true186.7484-0.892640.0055555555555555566/26264https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/607/A43?format=asciiOpticalRadiodefaultJ/A+A/607/A43/listList of fits filesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNz? Number of slicesmeta.numberintnullableObs.DateObservation datetime.epoch;obscharFreqObserved frequency or lower value of frequency interval for the datacubeGHzem.freqdoubleBFreq? Upper value of frequency interval for the datacubeGHzem.freq;stat.maxdoublenullabledFreq? Frequency resolution for the datacubeHzspect.resolutionfloatnullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar