J/A+A/630/A75ivo://CDS.VizieR/J/A+A/630/A75doi:10.26093/cds/vizier.36300075CDSPastorello A.Mason E.Taubenberger S.Fraser M.Cortini G.,Tomasella L.Botticella M.T.Elias-Rosa N.Kotak R.Smartt S.J.,Benetti S.Cappellaro E.Turatto M.Tartaglia L.Djorgovski S.G.,Drake A.J.Berton M.Briganti F.Brimacombe J.Bufano F.Cai Y.-Z.,Chen S.Christensen E.J.Ciabattari F.Congiu E.Dimai A.Inserra C.,Kankare E.Magill L.Maguire K.Martinelli F.Morales-Garoffolo A.,Ochner P.Pignata G.Reguitti A.Sollerman J.Spiro S.Terreran G.,Wright D.E.2020-05-06T13:52:22Z2019-09-24T08:27:35ZCDS support team

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

cds-question@unistra.frnovaevariable-starsinfrared-photometryvisible-astronomyWide-band photometrysloan-photometryWe present extensive datasets for a class of intermediate-luminosity optical transients known as "luminous red novae" (LRNe). They show doublepeaked light curves, with an initial rapid luminosity rise to a blue peak (at -13 to -15mag), which is followed by a longer-duration red peak that sometimes is attenuated, resembling a plateau. The progenitors of three of them (NGC4490-2011OT1, M101-2015OT1, and SNhunt248), likely relatively massive blue to yellow stars, were also observed in a pre-eruptive stage when their luminosity was slowly increasing. Early spectra obtained during the first peak show a blue continuum with superposed prominent narrow Balmer lines, with P Cygni profiles. Lines of FeII are also clearly observed, mostly in emission. During the second peak, the spectral continuum becomes much redder, H{alpha} is barely detected, and a forest of narrow metal lines is observed in absorption. Very late-time spectra (~6 months after blue peak) show an extremely red spectral continuum, peaking in the infrared (IR) domain. H{alpha} is detected in pure emission at such late phases, along with broad absorption bands due to molecular overtones (such as TiO, VO). We discuss a few alternative scenarios for LRNe. Although major instabilities of single massive stars cannot be definitely ruled out, we favour a common envelope ejection in a close binary system, with possibly a final coalescence of the two stars. The similarity between LRNe and the outburst observed a few months before the explosion of the Type IIn SN 2011ht is also discussed.2019A&A...630A..75Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/630/A75CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/630/A75https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/630/A75http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/630/A75https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/630/A75https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/630/A75http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/630/A75GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/630/A75/objects (List of studied novae)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/630/A75/objects?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/630/A75/objects?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/630/A75/objects?GETtext/xml+votable180.050000true187.67437541.63050.0055555555555555566/8195 10905 11434 20002 28167 283482.367228618189496e-19 6.194049834323928e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/630/A75?format=asciiOpticalInfrareddefaultJ/A+A/630/A75/objectsList of studied novaeNameNamemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainLCShow the light curvesmeta.ref.urlcharFileNameName of the table with photometrymeta.id;phot;meta.tablecharONameOther namemeta.idcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/630/A75/tablea1Johnson-Cousins UBVRI (Vega mag) photometry of NGC4490-2011OT1 (PSN J12304185+4137498)Umag? Johnson-Cousins U band magnitude (Vega)magphot.mag;em.opt.UfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observation (dd/mm/yy)time.epochnullableJDJulian Date (JD-2400000)dtime.epochdoublel_UmagLimit flag on Umagmeta.code.errorchare_Umag? Johnson-Cousins U band magnitude errormagstat.error;phot.mag;em.opt.Ufloatnullablel_BmagLimit flag on Bmagmeta.code.errorcharBmag? Johnson-Cousins B band magnitude (Vega)magphot.mag;em.opt.Bfloatnullablee_Bmag? Johnson-Cousins B band magnitude errormagstat.error;phot.mag;em.opt.Bfloatnullablel_VmagLimit flag on Vmagmeta.code.errorcharVmag? Johnson-Cousins V band magnitude (Vega)magphot.mag;em.opt.Vfloatnullablee_Vmag? Johnson-Cousins V band magnitude errormagstat.error;phot.mag;em.opt.Vfloatnullablel_RmagLimit flag on Rmagmeta.code.errorcharRmag? Johnson-Cousins R band magnitude (Vega)magphot.mag;em.opt.Rfloatnullablee_Rmag? Johnson-Cousins R band magnitude errormagstat.error;phot.mag;em.opt.Rfloatnullablel_ImagLimit flag on Imagmeta.code.errorcharImag? Johnson-Cousins I band magnitude (Vega)magphot.mag;em.opt.Ifloatnullablee_Imag? Johnson-Cousins I band magnitude errormagstat.error;phot.mag;em.opt.IfloatnullableTel[1/20] Telescope numerical code (1)meta.codeintNote[abc] Notes (2)meta.notecharJ/A+A/630/A75/tablea2*Johnson-Cousins UBVRI (Vega mag) photometry of NGC3437-2011OT1 (PSN J10523453+2256052)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observation (dd/mm/yy or Stack MMMDD-MMMDD)time.epochcharJDJulian Date (JD-2400000)dtime.epochdoublel_UmagLimit flag on Umagmeta.code.errorcharUmag? Johnson-Cousins U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? Johnson-Cousins U band magnitude errormagstat.error;phot.mag;em.opt.Ufloatnullablel_BmagLimit flag on Bmagmeta.code.errorcharBmag? Johnson-Cousins B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Johnson-Cousins B band magnitude errormagstat.error;phot.mag;em.opt.Bfloatnullablel_VmagLimit flag on Vmagmeta.code.errorcharVmag? Johnson-Cousins V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Johnson-Cousins V band magnitude errormagstat.error;phot.mag;em.opt.Vfloatnullablel_RmagLimit flag on Rmagmeta.code.errorcharRmag? Johnson-Cousins R band magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? Johnson-Cousins R band magnitude errormagstat.error;phot.mag;em.opt.Rfloatnullablel_ImagLimit flag on Imagmeta.code.errorcharImag? Johnson-Cousins I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? Johnson-Cousins I band magnitude errormagstat.error;phot.mag;em.opt.IfloatnullableTel[1/15] Telescope numerical code (1)meta.codeintNoteNotes (2)meta.notecharJ/A+A/630/A75/tablea3*Sloan g (AB mag) and Johnson-Cousins BVRI (Vega mag) photometry of UGC12307-2013OT1 (PSN J23011153+1243218)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observation (dd/mm/yy)time.epochnullableJDJulian Date (JD-2400000)dtime.epochdoublel_gmagLimit flag on gmagmeta.code.errorchargmag? Sloan g band magnitude (AB)magphot.mag;em.opt.Bfloatnullablel_BmagLimit flag on Bmagmeta.code.errorcharBmag? Johnson-Cousins B band magnitude (Vega)magphot.mag;em.opt.Bfloatnullablee_Bmag? Johnson-Cousins B band magnitude errormagstat.error;phot.mag;em.opt.Bfloatnullablel_VmagLimit flag on Vmagmeta.code.errorcharVmag? Johnson-Cousins V band magnitude (Vega)magphot.mag;em.opt.Vfloatnullablee_Vmag? Johnson-Cousins V band magnitude errormagstat.error;phot.mag;em.opt.Vfloatnullablel_RmagLimit flag on Rmagmeta.code.errorcharRmag? Johnson-Cousins R band magnitude (Vega)magphot.mag;em.opt.Rfloatnullablee_Rmag? Johnson-Cousins R band magnitude errormagstat.error;phot.mag;em.opt.Rfloatnullablel_ImagLimit flag on Imagmeta.code.errorcharImag? Johnson-Cousins I band magnitude (Vega)magphot.mag;em.opt.Ifloatnullablee_Imag? Johnson-Cousins I band magnitude errormagstat.error;phot.mag;em.opt.IfloatnullableTel[1/11] Telescope numerical code (1)meta.codeintNoteNotes (2)meta.notecharJ/A+A/630/A75/tablea4Johnson-Cousins BVR (Vega mag) and Sloan ugriz (AB mag) photometry of M101-2015OT1 (PSN J14021678+5426205)l_zmagLimit flag on zmagmeta.code.errorcharl_imagLimit flag on imagmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observation (dd/mm/yy)time.epochnullableJDJulian Date (JD-2400000)dtime.epochdoublel_BmagLimit flag on Bmagmeta.code.errorcharBmag? Johnson-Cousins B band magnitude (Vega)magphot.mag;em.opt.Bfloatnullablee_Bmag? Johnson-Cousins B band magnitude errormagstat.error;phot.mag;em.opt.Bfloatnullablel_VmagLimit flag on Vmagmeta.code.errorcharVmag? Johnson-Cousins V band magnitude (Vega) (2)magphot.mag;em.opt.Vfloatnullablee_Vmag? Johnson-Cousins V band magnitude errormagstat.error;phot.mag;em.opt.Vfloatnullablel_RmagLimit flag on Rmagmeta.code.errorcharRmag? Johnson-Cousins R band magnitude (Vega) (2)magphot.mag;em.opt.Rfloatnullablee_Rmag? Johnson-Cousins R band magnitude errormagstat.error;phot.mag;em.opt.Rfloatnullablel_umagLimit flag on umagmeta.code.errorcharumag? Sloan u band magnitude (AB)magphot.mag;em.opt.Ufloatnullablee_umag? Sloan u band magnitude errormagstat.error;phot.mag;em.opt.Ufloatnullablel_gmagLimit flag on gmagmeta.code.errorchargmag? Sloan g band magnitude (AB)magphot.mag;em.opt.Bfloatnullablee_gmag? Sloan g band magnitude errormagstat.error;phot.mag;em.opt.Bfloatnullablel_rmagLimit flag on rmagmeta.code.errorcharrmag? Sloan r band magnitude (AB)magphot.mag;em.opt.Rfloatnullablee_rmag? Sloan r band magnitude errormagstat.error;phot.mag;em.opt.Rfloatnullableimag? Sloan i band magnitude (AB)magphot.mag;em.opt.Ifloatnullablee_imag? Sloan i band magnitude errormagstat.error;phot.mag;em.opt.Ifloatnullablezmag? Sloan z band magnitude (AB)magphot.mag;em.opt.Ifloatnullablee_zmag? Sloan z band magnitude errormagstat.error;phot.mag;em.opt.IfloatnullableTel[1/13] Telescope numerical code (1)meta.codeintJ/A+A/630/A75/tablea5Johnson-Cousins UBVRI (Vega mag) photometry of SN 1997bsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observation (dd/mm/yy)time.epochnullableJDJulian Date (JD-2400000)dtime.epochdoubleUmag? Johnson-Cousins U band magnitude (Vega)magphot.mag;em.opt.Ufloatnullablee_Umag? Johnson-Cousins U band magnitude errormagstat.error;phot.mag;em.opt.UfloatnullableBmag? Johnson-Cousins B band magnitude (Vega)magphot.mag;em.opt.Bfloatnullablee_Bmag? Johnson-Cousins B band magnitude errormagstat.error;phot.mag;em.opt.BfloatnullableVmag? Johnson-Cousins V band magnitude (Vega)magphot.mag;em.opt.Vfloatnullablee_Vmag? Johnson-Cousins V band magnitude errormagstat.error;phot.mag;em.opt.Vfloatnullablel_RmagLimit flag on Rmagmeta.code.errorcharRmagJohnson-Cousins R band magnitude (Vega)magphot.mag;em.opt.Rfloate_Rmag? Johnson-Cousins R band magnitude errormagstat.error;phot.mag;em.opt.RfloatnullableImag? Johnson-Cousins I band magnitude (Vega)magphot.mag;em.opt.Ifloatnullablee_Imag? Johnson-Cousins I band magnitude errormagstat.error;phot.mag;em.opt.IfloatnullableTelTelescope numerical code (1)meta.codeintJ/A+A/630/A75/tablea6Johnson-Cousins VR (Vega mag) and Sloan gr (AB mag) photometry of NGC5806-2014OT1 (SNhunt248)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observation (dd/mm/yy)time.epochnullableJDJulian Date (JD-2400000)dtime.epochdoublel_VmagLimit flag on Vmagmeta.code.errorcharVmag? Johnson-Cousins V band magnitude (Vega)magphot.mag;em.opt.Vfloatnullablel_RmagLimit flag on Rmagmeta.code.errorcharRmag? Johnson-Cousins R band magnitude (Vega)magphot.mag;em.opt.Rfloatnullablee_Rmag? Johnson-Cousins R band magnitude errormagstat.error;phot.mag;em.opt.Rfloatnullablel_gmagLimit flag on gmag (AB)meta.code.errorchargmag? Sloan g band magnitudemagphot.mag;em.opt.Rfloatnullablee_gmag? Sloan g band magnitude errormagstat.error;phot.mag;em.opt.Bfloatnullablel_rmagLimit flag on rmagmeta.code.errorcharrmag? Sloan r band magnitude (AB)magphot.mag;em.opt.RfloatnullableTelTelescope numerical code (1)meta.codeint