J/A+A/670/A121ivo://CDS.VizieR/J/A+A/670/A121doi:10.26093/cds/vizier.36700121CDSHerenz E.C.Inoue J.Salas H.Koenigs B.Moya-Sierralta C.,Cannon J.M.Hayes M.Papaderos P.Oestlin G.Bik A.Le Reste A.,Kusakabe H.Monreal-Ibero A.Puschnig J.2024-11-06T20:02:24Z2023-02-14T09:42:58ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyradio-astronomyOutflows from low-mass star-forming galaxies are a fundamental ingredient for models of galaxy evolution and cosmology. Despite seemingly favourable conditions for outflow formation in compact starbursting galaxies, convincing observational evidence for kpc-scale outflows in such systems is scarce. The onset of kpc-scale ionised filaments in the halo of the metal-poor compact dwarf SBS 0335-052E was previously not linked to an outflow. We here we investigate whether these filaments provide evidence for an outflow. We obtained new VLT/MUSE WFM and deep NRAO/VLA B-configuration 21cm data of the galaxy. The MUSE data provide morphology, kinematics, and emission line ratios H{beta}/H{alpha} and [OIII]{lambda}5007/H{alpha} of the low surface-brightness filaments, while the VLA data deliver morphology and kinematics of the neutral gas in and around the system. Both datasets are used in concert for comparisons between the ionised and the neutral phase. We report the prolongation of a lacy filamentary ionised structure up to a projected distance of 16kpc at SB(H{alpha})=1.5x10^-18^erg/s/cm^2^/arcsec^2^. The filaments exhibit unusual low H{alpha}/H{beta}~=2.4 and low [OIII] {lambda}5007/H{alpha}~0.4-0.6. They are spectrally narrow (~20km/s) and exhibit no velocity sub-structure. The filaments extend outwards of the elongated HI halo. On small scales the N(HI) peak is offset from the main star-forming sites. Morphology and kinematics of HI and HII reveal how star-formation driven feedback interacts differently with the ionised and the neutral phase. We reason that the filaments are a large-scale manifestation of star-formation driven feedback, namely limb-brightened edges of a giant outflow cone that protrudes through the halo of this gas-rich system. A simple toy model of such a conical structure is found to be commensurable with the observations.2023A&A...670A.121Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/670/A121CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/734/82 : NIR spectroscopy of five dwarf galaxies (Izotov+, 2011)J/A+A/561/A49 : 867um image of SBS 0335-052 with ALMA (Hunt+, 2014)J/A+A/606/L11 : MUSE observations SBS 0335-052E (Herenz+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/670/A121https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/670/A121http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/670/A121https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/670/A121https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/670/A121http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/670/A121GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/670/A121/list (List of fits datacubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/670/A121/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/670/A121/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/670/A121/list?GETtext/xml+votable180.050000true54.42907-5.038290.0055555555555555566/23078https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/670/A121?format=asciiOpticalRadiodefaultJ/A+A/670/A121/listList of fits datacubesrecnoRecord 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.mainscale? Scale of the imagearcsec/pixinstr.scalefloatnullableNyNumber of pixels along Y-axismeta.numberintNzNumber of slicesmeta.numberintObs.dateObservation datestime.epoch;obsnullableblambda? Lower value of wavelength interval0.1nmem.wlfloatnullableBlambda? Upper value of wavelength interval0.1nmem.wlfloatnullabledlambda? Wavelength resolution0.1nmspect.resolutionfloatnullablebVopt? Lower value of optical velocity intervalkm/sphys.velocfloatnullableBVopt? Upper value of optical velocity intervalkm/sphys.velocfloatnullabledVopt? Optical velocity resolutionkm/sspect.resolutionfloatnullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitscharNxNumber of pixels along X-axismeta.numberint