Long fading mid-infrared emission in transient coronal line emitters: Dust echo of a tidal disruption flare
The sporadic accretion following the tidal disruption of a star by a super-massive black hole
(TDE) leads to a bright UV and soft X-ray flare in the galactic nucleus. The gas and dust
surrounding the black hole responses to such a flare with an echo in emission lines and
infrared emission. In this paper, we report the detection of long fading mid-IR emission
lasting up to 14 years after the flare in four TDE candidates with transient coronal lines using
the WISE public data release. We estimate that the reprocessed mid-IR luminosities are in …
(TDE) leads to a bright UV and soft X-ray flare in the galactic nucleus. The gas and dust
surrounding the black hole responses to such a flare with an echo in emission lines and
infrared emission. In this paper, we report the detection of long fading mid-IR emission
lasting up to 14 years after the flare in four TDE candidates with transient coronal lines using
the WISE public data release. We estimate that the reprocessed mid-IR luminosities are in …
Abstract
The sporadic accretion following the tidal disruption of a star by a super-massive black hole (TDE) leads to a bright UV and soft X-ray flare in the galactic nucleus. The gas and dust surrounding the black hole responses to such a flare with an echo in emission lines and infrared emission. In this paper, we report the detection of long fading mid-IR emission lasting up to 14 years after the flare in four TDE candidates with transient coronal lines using the WISE public data release. We estimate that the reprocessed mid-IR luminosities are in the range between
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