J/ApJ/826/144ivo://CDS.VizieR/J/ApJ/826/144doi:10.26093/cds/vizier.18260144CDSShappee B.J.Piro A.L.Holoien T.-S.Prieto J.L.Contreras C.,Itagaki K.Burns C.R.Kochanek C.S.Stanek K.Z.Alper E.Basu U.,Beacom J.F.Bersier D.Brimacombe J.Conseil E.Danilet A.B.Dong S.,Falco E.Grupe D.Hsiao E.Y.Kiyota S.Morrell N.Nicolas J.,Phillips M.M.Pojmanski G.Simonian G.Stritzinger M.Szczygiel D.M.,Taddia F.Thompson T.A.Thorstensen J.Wagner M.R.Wozniak P.R.2017-06-01T08:52:37Z2016-10-27T09:40:23ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomyWide-band photometryultraviolet-photometryspectroscopyOn 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just ~2 days after first light using a global array of 14cm diameter telescopes. ASASSN-14lp went on to become a bright supernova (V=11.94mag), second only to SN 2014J for the year. We present prediscovery photometry (with a detection less than a day after first light) and ultraviolet through near-infrared photometric and spectroscopic data covering the rise and fall of ASASSN-14lp for more than 100 days. We find that ASASSN-14lp had a broad light curve ({Delta}m_15_(B)=0.80+/-0.05), a B-band maximum at 2457015.82+/-0.03, a rise time of 16.94_-0.10_^+0.11^days, and moderate host-galaxy extinction (E(B-V)_host_=0.33+/-0.06). Using ASASSN-14lp, we derive a distance modulus for NGC 4666 of {mu}=30.8+/-0.2, corresponding to a distance of 14.7+/-1.5Mpc. However, adding ASASSN-14lp to the calibrating sample of Type Ia supernovae still requires an independent distance to the host galaxy. Finally, using our early-time photometric and spectroscopic observations, we rule out red giant secondaries and, assuming a favorable viewing angle and explosion time, any nondegenerate companion larger than 0.34R_{sun}_.2016ApJ...826..144Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/826/144CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/eso : ESO Science Archive Catalog (ESO, 1991-2016)B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)J/MNRAS/444/527 : Tully-Fisher distances for Spitzer galaxies (Sorce+, 2014)J/AJ/142/156 : The CSP (DR2): photometry of SNe Ia (Stritzinger+, 2011)J/ApJ/731/120 : Intrinsic SN Ia light curves (Mandel+, 2011)J/AJ/139/519 : Carnegie supernova project. SNe Ia (Contreras+, 2010)J/AJ/139/120 : Low-redshift Type-Ia supernovae (Folatelli+, 2010)J/ApJS/172/599 : SFI++ II. A new I-band Tully-Fisher catalog (Springob+, 2007)http://www.astronomy.ohio-state.edu/~assassin/index.shtml : ASAS-SN home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/826/144https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/826/144http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/826/144https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/826/144https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/826/144http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/826/144GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfraredUVOpticaldefaultJ/ApJ/826/144/table2Spectroscopic observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateUT date of observationtime.epoch;obsnullableJDJulian date of observation; JD-2400000dtime.epochdoublet-tfirst[3.2/98.9] Time after first light (t_first_=2456998.88_-0.10_^+0.11^)dtime.epochfloatt-tBmax[-13.8/82] Time after B-band maximum (t_Bmax_=2457015.82+/-0.03)dtime.epochfloatTelTelescope/Instrumentmeta.notecharlambda1[3200/4200] Lower wavelength range (in {AA})0.1nmem.wl;stat.minintlambda2[6850/10000] Upper wavelength range (in {AA})0.1nmem.wl;stat.maxintExp[180/1800] Exposure timestime.duration;obs.exposurefloatJ/ApJ/826/144/table1Photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date of observation; JD-2450000dtime.epochdoubleBandBand used in the observation (u,g,r,i,V, UVM2, UVW2 or clear)instr.setup;obscharl_magLimit flag on magmeta.code.errorcharmag[11.9/19] Observed magnitude in Bandmagphot.magfloate_mag[0.01/0.5]? Uncertainty in magmagstat.error;phot.magfloatnullableTelTelescope where observation was taken (1)meta.id;instr.telchar