J/ApJ/927/125ivo://CDS.VizieR/J/ApJ/927/125doi:10.26093/cds/vizier.19270125CDSCruz-Saenz de Miera F.Kospal A.Abraham P.Park S.Nagy Z.Siwak M.,Kun M.Fiorellino E.Szabo Z.M.Antoniucci S.Giannini T.Nisini B.,Szabados L.Kriskovics L.Ordasi A.Szakats R.Vida K.Vinko J.,Zielinski P.Wyrzykowski L.Garcia-Alvarez D.Drozdz M.Ogloza W.,Sonbas E.2024-11-06T20:23:39Z2024-01-23T12:20:12ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectsinfrared-photometryvisible-astronomybroad-band-photometryWe present follow-up photometric and spectroscopic observations, and subsequent analysis of Gaia20eae. This source triggered photometric alerts during 2020 after showing a ~3mag increase in its brightness. Its Gaia Alert light curve showed the shape of a typical eruptive young star. We carried out observations to confirm Gaia20eae as an eruptive young star and classify it. Its pre-outburst spectral energy distribution shows that Gaia20eae is a moderately embedded Class II object with L_bol_=7.22L_{sun}_. The color-color and color-magnitude diagrams indicate that the evolution in the light curve is mostly gray. Multiple epochs of the H{alpha} line profile suggest an evolution of the accretion rate and winds. The near-infrared spectra display several emission lines, a feature typical of EX Lupi-type (EXor) eruptive young stars. We estimated the mass accretion rate during the dimming phase to be dM/dt=3-8x10^-7^M_{sun}_/yr, higher than typical T Tauri stars of similar mass and comparable to other EXors. We conclude Gaia20eae is a new EXor-type candidate.2022ApJ...927..125Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/927/125CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/AJ/136/2413 : Galactic midplane Spitzer red sources (Robitaille+, 2008)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/ApJS/184/18 : Spitzer survey of young stellar clusters (Gutermuth+, 2009)J/AJ/144/192 : Spitzer survey of Orion A and B. I. YSOs (Megeath+, 2012)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/ApJS/220/11 : SEDs of Spitzer YSOs in the Gould Belt (Dunham+, 2015)J/ApJ/806/231 : MISFITS survey: HCO+ obs. of Spitzer YSOs (Heiderman+, 2015)J/ApJ/815/4 : V899 Mon long-term monitoring (Ninan+, 2015)J/A+A/600/A20 : Lupus YSOs X-shooter spectroscopy (Alcala+, 2017)J/ApJ/839/113 : Molecular clouds with GLIMPSE/MIPSGAL (Retes-Romero+, 2017)J/A+A/627/A135 : VRI photometry of IC5070 variable stars (Bhardwaj+, 2019)J/ApJ/889/148 : V346 Nor IJHKs photometry & IR spectra (Kospal+, 2020)J/A+A/650/A43 : Spectra of NGC 1333 Class I-Class II stars (Fiorellino+, 2021)J/A+A/652/A76 : Gaia Photometric Science Alerts (Hodgkin+, 2021)J/ApJS/254/33 : Gal. midplane Spitzer/IRAC cand. YSOs (SPICY) (Kuhn+, 2021)J/ApJ/923/171 : V899 Mon opt-NIR spectra and light curves (Park+, 2021)J/ApJ/920/132 : NEOWISE 6.5yr variability in YSOs (Park+, 2021)J/ApJ/917/80 : Opt-to-IR monitoring obs. of V1057 Cyg (Szabo+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/927/125https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/927/125http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/927/125https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/927/125https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/927/125http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/927/125GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/927/125/table1Optical photometry of Gaia20eaerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian date of observationdtime.epochdoubleFiltBroadband filter (gri or BVRcIc)meta.notecharomag[13.48/22.5] Observed magnitude in Filtmagphot.magfloate_omag[0.0036/0.2] Uncertainty in omagmagstat.error;phot.magfloatTelTelescope used ("RC80", "Adiyaman" or "Suhora")instr.setupchar