6533b832fe1ef96bd129ae7e

RESEARCH PRODUCT

A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger

T. M. ReynoldsDavid L. ClementsKaj WiikJari KotilainenNicholas A. WaltonPetar MimicaGöran ÖStlinIvan Marti-vidalC. Romero-cañizalesC. Romero-cañizalesPeter G. JonkerPeter G. JonkerAlmudena Alonso-herreroMiguel A. AloyEskil VareniusEskil VareniusMiguel A. Pérez-torresMiguel A. Pérez-torresStuart D. RyderKirpal NandraAntxon AlberdiPetri VaisanenSeppo MattilaTuomas KangasTuomas KangasT. HeikkiläM. BondiW. P. S. MeikleClaes FranssonPeter LundqvistErkki KankareStephen SmarttRubina KotakRubina KotakN. Ramírez-olivenciaRubén Herrero-illanaRobert BeswickAndreas EfstathiouSergey S. TsygankovMorgan FraserMorgan FraserRobert GreimelJussi Harmanen

subject

010504 meteorology & atmospheric sciencesGeneral Science & TechnologyInfraredAstronomyAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsGalaxy merger01 natural sciencesTidal disruption eventGravitational fieldMD Multidisciplinary0103 physical sciencesAstrophysics::Solar and Stellar AstrophysicsCOREBLACK-HOLES010303 astronomy & astrophysicsAstrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsJet (fluid)Supermassive black holeta115Science & TechnologyMultidisciplinaryAstrophysics - Astrophysics of GalaxiesGalaxyMultidisciplinary SciencesWavelengthAstrophysics of Galaxies (astro-ph.GA)Science & Technology - Other TopicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaEMISSIONSTARS

description

Tidal disruption events (TDEs) are transient flares produced when a star is ripped apart by the gravitational field of a supermassive black hole (SMBH). We have observed a transient source in the western nucleus of the merging galaxy pair Arp 299 that radiated >1.5 × 10 erg at infrared and radio wavelengths but was not luminous at optical or x-ray wavelengths. We interpret this as a TDE with much of its emission reradiated at infrared wavelengths by dust. Efficient reprocessing by dense gas and dust may explain the difference between theoretical predictions and observed luminosities of TDEs. The radio observations resolve an expanding and decelerating jet, probing the jet formation and evolution around a SMBH. Copyright © 2018, American Association for the Advancement of Science

http://dx.doi.org/10.1126/science.aao4669