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

Abstract

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.

arXiv comment13 pages, 6 figures; Accepted to Monthly Notices of the Royal Astronomical Society

References in corpus (42)

• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Embedded Clusters in Molecular Clouds
• The Spitzer c2d Legacy Results: Star Formation Rates and Efficiencies; Evolution and Lifetimes
• From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt survey
• GLIMPSE: I. A SIRTF Legacy Project to Map the Inner Galaxy
• VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
• Interpreting Spectral Energy Distributions from Young Stellar Objects. II. Fitting observed SEDs using a large grid of pre-computed models
• Competitive accretion in embedded stellar cluster
• Star Formation in a Crossing Time
• An Extended Grid of Nova Models: II. The Parameter Space of Nova Outbursts
• V1309 Scorpii: merger of a contact binary
• Intrinsically Red Sources observed by Spitzer in the Galactic Mid-Plane
• Catalog of 93 Nova Light Curves: Classification and Properties
• Planck 2013 results. XIII. Galactic CO emission
• A Classification Scheme for Young Stellar Objects Using the WIDE-FIELD INFRARED SURVEY EXPLORER AllWISE Catalog: Revealing Low-Density Star Formation in the Outer Galaxy
• Reddening and metallicity maps of the Milky Way bulge from VVV and 2MASS II. The complete high resolution extinction map and implications for Bulge studies
• Constraints on Massive Star Formation: Cygnus OB2 was always an Association
• Hierarchical Triggering of Star Formation by Superbubbles in W3/W4
• X-ray Processing of ChaMPlane Fields: Methods and Initial Results for Selected Anti-Galactic Center Fields
• Spitzer IRAC and MIPS Imaging of Clusters and Outflows in 9 High-mass Star Forming Regions
• Evidence for an FU Orionis-like Outburst from a Classical T Tauri Star
• Hierarchical Star-Formation in M33: Fundamental properties of the star-forming regions
• Initial Data Release from the INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS)
• The Galactic Bulge Survey: outline and X-ray observations
• The enigmatic outburst of V445 Puppis - a possible Helium nova?
• Near-Infrared Studies of V1280 Sco (Nova Scorpii 2007)
• Giant Molecular Clouds are More Concentrated to Spiral Arms than Smaller Clouds
• The UBV Color Evolution of Classical Novae. I. Nova-Giant Sequence in the Color-Color Diagram
• VLTI monitoring of the dust formation event of the Nova V1280 Sco
• The Galactic Bulge Survey: completion of the X-ray survey observations
• Extreme Infrared Variables from UKIDSS - I. A Concentration in Star Forming Regions
• Photometric evolution, orbital modulation and progenitor of Nova Mon 2012
• Five-Year Optical and Near Infrared Observations of the Extremely Slow Nova V1280 Scorpii
• Chandra Reveals Variable Multi-Component X-ray Emission from FU Orionis
• Rapid Dust Formation in Novae: The Speed Class - Formation Timescale Correlation Explained
• The Chandra Galactic Bulge Survey: optical catalogue and point-source counterparts to X-ray sources
• Variability of Optical Counterparts in the Chandra Galactic Bulge Survey
• Near-infrared counterparts to the Galactic Bulge Survey X-ray source population
• Velocity Structure and Variability of [O III] Emission in Black Hole Host Globular Cluster RZ2109
• The time-dependent rebrightenings in classical novae outbursts: a late-time episodic fuel burning?
• The narrow and moving HeII lines in nova KT Eri
• IR study of nova V2468 Cyg from early decline to the coronal phase

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