Quiescence of an Outburst of a Low-Mass Young Stellar Object: LDN1415-IRS

Abstract

LDN1415-IRS, a low-mass young stellar object (YSO) went into an outburst between 2001 and 2006, illuminating a surrounding nebula, LDN1415-Neb. LDN1415-Neb was found to have brightened by I=3.77 mag by April 2006. The optical light curve covering $\sim$ 15.5 years, starting from October 2006 to January 2022, is presented in this study. The initial optical spectrum indicated the presence of winds in the system but the subsequent spectra have no wind indicators. The declining light curve and the absence of the P-Cygni profile in later epoch spectra indicate that the star and nebula system is retrieving back from its outburst state. Two Herbig-Haro objects (HHOs) are positioned linearly with respect to the optical brightness peak of the nebula, probably indicating the circumstellar disk being viewed edge-on. Our recent deep near-infrared (NIR) imaging using TANSPEC has revealed the presence of a nearby star-like source, south of the LDN1415-IRS, at an angular distance of $\sim$ 5.4 arcsec.

arXiv commentAccepted for publication in the Journal of Astrophysics and Astronomy

References in corpus (9)

• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The Zwicky Transient Facility: Observing System
• Northern JHK Standard Stars for Array Detectors
• Resolving the Luminosity Problem in Low-Mass Star Formation
• A systematic survey for eruptive young stellar objects using mid-infrared photometry
• Diagnosing FUor-like Sources: The Parameter Space of Viscously Heated Disks in the Optical and Near-IR
• Mass transport from the envelope to the disk of V346 Nor: a case study for the luminosity problem in an FUor-type young eruptive star
• Re-appearance of McNeil's nebula (V1647 Orionis) and its outburst environment
• TANSPEC: TIFR-ARIES Near Infrared Spectrometer