The progenitor of the FUor-type young eruptive star 2MASS J06593158-0405277

Abstract

Only a dozen confirmed FU Orionis-type young outbursting stars (FUors) are known today; this explains the interest in the recent FUor eruption of 2MASS J06593158-0405277. Its outburst and expected decline will be subject to numerous studies in the future. Almost equally important for the understanding of the eruption mechanism, however, is the physical characterization of the FUor's precursor. Here we analyze unpublished archival data and summarize - and partly revise - all relevant photometry from optical to submillimeter wavelengths. Our analysis implies that the FUor is possibly associated with eight T Tauri star candidates and a strong Class 0 source. Adopting a distance of 450 pc for the FUor, we derive a quiescent bolometric luminosity and temperature of L_bol = 4.8 L_Sun and T_bol = 1190 K, typical for young Class II sources. The central star has a temperature of T_eff = 4000 K, a mass of 0.75 M_Sun, and an age of about 6 x 10^5 yr. The SED implies a circumstellar mass of 0.01 - 0.06 M_Sun, and the system is surrounded by a faint infrared nebulosity. Our results provide an almost complete picture of a FUor progenitor, supporting the interpretation of future post-outburst studies.

arXiv comment16 pages, 3 figures, 2 tables, accepted for publication in ApJ Letters

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Cited by in corpus (19)

• A Near-IR Spectroscopic Survey of FU Orionis Objects
• Determining the recurrence timescale of long-lasting YSO outbursts
• Massive compact disks around FU Orionis-type young eruptive stars revealed by ALMA
• Light curves of the latest FUor: Indication of a close binary
• A Comparison of the X-ray Properties of FU Ori-type Stars to Generic Young Stellar Objects
• High-resolution spectroscopic monitoring observations of FU Orionis-type object, V960 Mon
• Photometric and spectroscopic study of the EXor-like eruptive young star Gaia19fct
• Spirals and clumps in V960 Mon: signs of planet formation via gravitational instability around an FU Ori star?
• Modeling the Multiwavelength Evolution of the V960 Mon System
• Measuring Optical Extinction Towards Young Stellar Objects Using Diffuse Interstellar Bands
• Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?
• An APEX study of molecular outflows in FUor-type stars
• Grain growth in newly discovered young eruptive stars
• The past photometric history of the FU Ori-type young eruptive star 2MASS J06593158-0405277 = V960 Mon
• The Spectroscopic Variations of the FU Orionis Object V960 Mon
• Disk Cooling and Wind Lines As Seen In the Spectral Line Evolution of V960 Mon
• The Effelsberg survey of FU Orionis and EX Lupi objects I. -- Host environments of FUors/EXors traced by NH${}_3$
• Revealing the spectroscopic variations of FU Orionis object V960 Mon with high-resolution spectroscopy
• The Effelsberg survey of FU~Orionis and EX~Lupi objects II. -- H${}_2$O maser observations