J/A+A/585/A162ivo://CDS.VizieR/J/A+A/585/A162doi:10.26093/cds/vizier.35850162CDSMaggi P.Haberl F.Kavanagh P.J.Sasaki M.Bozzetto L.M.,Filipovic M.D.Vasilopoulos G.Pietsch W.Points S.D.Chu Y.-H.,Dickel J.Ehle M.Williams R.Greiner J.2018-01-02T13:43:11Z2016-05-10T13:48:20ZCDS support team

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

cds-question@unistra.frmagellanic-cloudssupernova-remnantsx-ray-sourcesWe present a comprehensive X-ray study of the population of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC). Using primarily XMM-Newton observations, we conduct a systematic spectral analysis of LMC SNRs to gain new insight into their evolution and the interplay with their host galaxy. We combined all the archival XMM-Newton observations of the LMC with those of our Very Large Programme LMC survey. We produced X-ray images and spectra of 51 SNRs, out of a list of 59 objects compiled from the literature and augmented with newly found objects. Using a careful modelling of the background, we consistently analysed all the X-ray spectra and measure temperatures, luminosities, and chemical compositions. The locations of SNRs are compared to the distributions of stars, cold gas, and warm gas in the LMC, and we investigated the connection between the SNRs and their local environment, characterised by various star formation histories. We tentatively typed all LMC SNRs, in order to constrain the ratio of core-collapse to type Ia SN rates in the LMC. We also compared the column densities derived from X-ray spectra to HI maps, thus probing the three-dimensional structure of the LMC. This work provides the first homogeneous catalogue of the X-ray spectral properties of SNRs in the LMC. It offers a complete census of LMC remnants whose X-ray emission exhibits Fe K lines (13% of the sample), or reveals the contribution from hot supernova ejecta (39%), which both give clues to the progenitor types. The abundances of O, Ne, Mg, Si, and Fe in the hot phase of the LMC interstellar medium are found to be between 0.2 and 0.5 times the solar values with a lower abundance ratio [{alpha}/Fe] than in the Milky Way. The current ratio of core-collapse to type Ia SN rates in the LMC is constrained to N_CC_/N_Ia_=1.35(_-0.24_^+0.11^), which is lower than in local SN surveys and galaxy clusters. Our comparison of the X-ray luminosity functions of SNRs in Local Group galaxies (LMC, SMC, M31, and M33) reveals an intriguing excess of bright objects in the LMC. Finally, we confirm that 30 Doradus and the LMC Bar are offset from the main disc of the LMC to the far and near sides, respectively.2016A&A...585A.162Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/585/A162CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2016)J/A+AS/143/391 : ROSAT HRI catalogue of LMC X-ray sources (Sasaki+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/585/A162https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/585/A162http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/585/A162https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/585/A162https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/585/A162http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/585/A162GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/585/A162/tablec1 (SNRs in the LMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/585/A162/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/585/A162/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/585/A162/tablec1?GETtext/xml+votable180.050000true72.09167-66.997780.0055555555555555565/8274 8278 6/33046 33053-33054 33075-33076 33078-33079 33089-33092 33094-33095 33101-33102 33104 33107 33116 33120-33121 33123-33124 33126 33129 33136https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/585/A162?format=asciiX-raydefaultJ/A+A/585/A162/tablec1SNRs in the LMCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT4indicates informations on ejecta in table4meta.ref.urlcharMCSNRMCSNR identifier (JHHMM-DDMM)meta.id;meta.maincharprimaryRAJ2000Right ascension of the remnant (J2000)pos.eq.ra;meta.mainDEJ2000Declination of the remnant (J2000)pos.eq.dec;meta.mainONameOld "common" name used in the literaturemeta.id;instr.setupcharX-rayFlag coding the type of X-ray data available and used in this work (1)meta.codecharLX? X-ray luminosity in the 0.3-8keV band, in units of 10^35^erg/s, obtained as described in Sect. 71e+28Wphys.luminosity;em.X-rayfloatnullableXSizeX-ray size (2)arcsecphys.angSizefloatPA? Position angle of the maximal extent in the non-symmetric case (3)degpos.posAngintnullablel_fNHLimit flag on fNHmeta.code.errorcharfNH? NH fraction, as defined in Sect. 8 (4)phys.columnDensityfloatnullableNOBNumber of blue early-type stars within 100pc of the remnant (see Sect. 6.2)meta.numberintrRatio of CC SNe to thermonuclear SNe expected from the observed distribution of stellar ages in the neighbourhood of the remnant, as obtained by Eq. (2) (see Sect. 6 for details)stat.fit.omcfloatHint-spec[1/5] Number attributed to SNRs as function of spectral results, as described in Sect. 6.3 and Table 7 (5)meta.codefloatRefReference in which the SNR was first published (6)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/585/A162/table41T/2T SNRs with detected ejecta (D), and used for measurements of ISM composition (I)LNe[Y-] Low Ne/Fe flag (2)meta.codecharLMg[Y-] Low Mg/Fe flag (2)meta.codecharLSi[Y-] Low Si/Fe flag (2)meta.codecharHMg[Y-] High Mg/Fe flag (2)meta.codecharHSi[Y-] High Si/Fe flag (2)meta.codecharLO[Y-] Low O/Fe flag (2)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCase[DI] D for 1T/2T SNRs with detected ejecta and I for ISM abundancemeta.codecharMCSNRMCSNR identifier (JHHMM-DDMM)meta.id;meta.maincharONameOld namemeta.idcharTypeSN type (1)src.classcharHO[Y-] High O/Fe flag (2)meta.codecharHO+Fe[Y-] High O&Fe/Fe flag (for ISM abundance) (2)meta.codecharHNe[Y-] High Ne/Fe flag (2)meta.codechar