Alert Notice 693: V582 Mon monitoring requested
Active Dates: Jan. 24, 2020 – May 15, 2020
Abstract:
AAVSO Young Stellar Objects (YSO) Section leader Michael Poxon requests, on behalf of Dr. William Herbst (Wesleyan University), AAVSO observers' assistance in monitoring the eclipsing T Tau system V582 Mon (KH 15D).
Justification:
The young system V582 Mon, also known as KH 15D, is an object that now needs photometric monitoring by anyone with the capability. It is not for the faint of heart (varies between I mags 14 and 18, and a few seconds of arc from a 7m star!). Bill's team have monitored it religiously for decades, mostly with the 1.3m telescope at CTIO that was part of the SMARTS consortium. Unfortunately, that resource is no longer available and the system is not being regularly monitored anywhere by anyone, as far as he knows. " "The need for monitoring is particularly urgent in the next month or two, since his team have been assigned time on Gemini South to obtain infrared spectroscopy of the star (sometime between February 1 and April 30). And, it has entered a new and interesting phase in which one star of the binary is currently emerging from behind the edge of a circumbinary ring. As it does so, the light from that star acts as a proble of the ring structure, which is a likely region of planet formation.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| R Mon | 10.70 | UXOR |
Cadence: Not Specified Precision: 100 |
Not Requested |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
No photometry filters provided
Comparison Stars:
No comparison stars provided
Co-Authorship
Observers are not eligible for co-authorship.
Additional Observer Input:
Not provided
Additional Submission Location:
Not provided
Forum URL
N/A
Notes:
Principal Investigator: Dr. William Herbst; Imported Campaign (Alert Notice #693)