Alert Notice 573: V2492 Cyg monitoring requested in support of XMM observations
Abstract:
Dr. Nicolas Grosso (CNRS, Observatoire Astronomique de Strasbourg) has requested AAVSO assistance in monitoring the young eruptive star (FUOR type) V2492 Cyg from the optical to the infrared in support of X-ray observations with XMM-Newton scheduled for 2017 April 18 UT. AAVSO observations indicate that V2492 Cyg, which has been declining from outburst, appears to be rebrightening, so nightly observations beginning immediately are critical. To support the XMM observations, beginning now and continuing through April 30, nightly optical to infrared photometry (BVRIJHK and/or the equivalent Sloan filter) is requested.
Justification:
AAVSO observations indicate that V2492 Cyg, which has been declining from outburst, appears to be rebrightening. To support the XMM observations.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| V2492 Cyg | 13.30 | FUOR |
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. Nicolas Grosso; Imported Campaign (Alert Notice #573)