J/ApJ/931/32ivo://CDS.VizieR/J/ApJ/931/32doi:10.26093/cds/vizier.19310032CDSYin Y.Gomez S.Berger E.Hosseinzadeh G.Nicholl M.Blanchard P.K.2024-11-06T20:25:49Z2024-05-07T09:54:15ZCDS support team

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

cds-question@unistra.frinfrared-photometryvisible-astronomybroad-band-photometrysupernovaeWe present optical imaging and spectroscopy of SN 2018lfe, which we classify as a Type I superluminous supernova (SLSN-I) at a redshift of z=0.3501+/-0.0004 with a peak absolute magnitude of M_r_=-22.1+/-0.1mag, one of the brightest SLSNe discovered. SN 2018lfe was identified for follow-up using our FLEET machine-learning pipeline. Both the light curve and the spectra of SN 2018lfe are consistent with the broad population of SLSNe. We fit the light curve with a magnetar central engine model and find an ejecta mass of M_ej_~3.8M_{sun}_, a magnetar spin period of P~2.9ms, and a magnetic field strength of B_{perp}_~2.8x10^14^G. The magnetic field strength is near the top of the distribution for SLSNe, while the spin period and ejecta mass are near the median values of the distribution for SLSNe. From late-time imaging and spectroscopy we find that the host galaxy of SN 2018lfe has an absolute magnitude of M_r_=-17.85+/-0.24, (LB=0.029+/-0.007L*), and an inferred metallicity of Z~0.3Z_{sun}_ and star formation rate of ~0.8M_{sun}_/yr.2022ApJ...931...32Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/931/32CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)J/ApJ/830/13 : Host-galaxy NUV-NIR data of 32 superluminous SNe (Perley+, 2016)J/A+A/675/A195 : ZTF DR11 classification in ZTF/4MOST sky (Sanchez-Saez+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/931/32https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/931/32http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/931/32https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/931/32https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/931/32http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/931/32GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/931/32/fig1Optical light curve of SN2018lferecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[0/88] Sequential index of observationmeta.code;spect.index;obsintMJD[58434.5/58603.7] Modified Julian Date of observation (JD-2400000.5)dtime.epochdoubleomag[19.15/22.6] Observed magnitude in Filtmagphot.magfloate_omag[0.05/0.6] Uncertainty in omagmagstat.error;phot.magfloatFiltFilter used (g, r, i or w)instr.setup;instr.filtercharTelSource of photometry ("ZTF", "FLWO" or "PS1")meta.id;instr.telchar