University of Hertfordshire

From the same journal

From the same journal

By the same authors

Discovery of a Long-Lived, High Amplitude Dusty Infrared Transient

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  • C. T. Britt
  • T. J. Maccarone
  • J. D. Green
  • P. G. Jonker
  • R. I. Hynes
  • M. A. P. Torres
  • J. Strader
  • L. Chomiuk
  • R. Salinas
  • P. Lucas
  • C. Contreras Pena
  • R. Kurtev
  • C. Heinke
  • L. Smith
  • N. J. Wright
  • C. Johnson
  • D. Steeghs
  • G. Nelemans
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Original languageEnglish
Pages (from-to)2822-2833
Number of pages12
JournalMonthly Notices of the Royal Astronomical Society
Early online date18 May 2016
Publication statusPublished - 11 Aug 2016


We report the detection of an infrared selected transient which has lasted at least 5 years, first identified by a large mid-infrared and optical outburst from a faint X-ray source detected with the Chandra X-ray Observatory. In this paper we rule out several scenarios for the cause of this outburst, including a classical nova, a luminous red nova, AGN flaring, a stellar merger, and intermediate luminosity optical transients, and interpret this transient as the result of a Young Stellar Object (YSO) of at least solar mass accreting material from the remains of the dusty envelope from which it formed, in isolation from either a dense complex of cold gas or massive star formation. This object does not fit neatly into other existing categories of large outbursts of YSOs (FU Orionis types) which may be a result of the object's mass, age, and environment. It is also possible that this object is a new type of transient unrelated to YSOs.


This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. ©: 2016 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.


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