A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger
Journal article, 2018

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 × 1052erg 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.

Author

S. Mattila

Tuorla Observatory

University of Turku

M.A. Pérez-Torres

University of Zaragoza

CSIC - Instituto de Astrofísica de Andalucía (IAA)

A. Efstathiou

European University Cyprus

P. Mimica

Universitat de Valencia

M Fraser

University of Cambridge

University College Dublin

E. Kankare

Queen's University Belfast

Antxon Alberdi

CSIC - Instituto de Astrofísica de Andalucía (IAA)

M. Aloy

Universitat de Valencia

T. Heikkilä

Tuorla Observatory

P. G. Jonker

Netherlands Institute for Space Research (SRON)

Radboud University

P. Lundqvist

AlbaNova University Center

Ivan Marti-Vidal

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Onsala Space Observatory, Observation Support

W. P.S. Meikle

Imperial College London

C. Romero-Cañizales

Chinese Academy of Sciences

Universidad Diego Portales

S. J. Smartt

Queen's University Belfast

S. Tsygankov

Tuorla Observatory

Eskil Varenius

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Onsala Space Observatory, Observation Support

University of Manchester

A. Alonso-Herrero

Centro de Astrobiologia (CAB)

M. Bondi

Istituto Nazionale Di Astrofisica, Rome

C. Fransson

AlbaNova University Center

R. Herrero-Illana

European Southern Observatory Santiago

T. Kangas

Space Telescope Science Institute (STScI)

Tuorla Observatory

R Kotak

Queen's University Belfast

Tuorla Observatory

Naim Ramirez-Olivencia

CSIC - Instituto de Astrofísica de Andalucía (IAA)

P. Väisänen

South African Astronomical Observatory

Southern African Large Telescope

R. J. Beswick

University of Manchester

D. L. Clements

Imperial College London

R. Greimel

University of Graz

J. Harmanen

Tuorla Observatory

J. Kotilainen

Tuorla Observatory

University of Turku

K. Nandra

Max Planck Institute

T. Reynolds

Tuorla Observatory

S. D. Ryder

Australian Astronomical Observatory

N. A. Walton

University of Cambridge

K. Wiik

Tuorla Observatory

G. Östlin

AlbaNova University Center

Science

0036-8075 (ISSN)

Vol. 361 6401 482-485

Subject Categories

Subatomic Physics

Astronomy, Astrophysics and Cosmology

Atom and Molecular Physics and Optics

DOI

10.1126/science.aao4669

More information

Latest update

2/20/2019