X-ray nova and LMXB V404 Cyg in rare outburst
Abstract:
V404 Cyg, an X-ray nova and a low mass X-ray binary (LMXB) with black hole component, is undergoing its first reported X-ray and optical outburst since 1989. Observations show rapid variations from X-ray to radio wavelengths.
Justification:
V404 Cyg's behavior following outbursts is unpredictable. Therefore, ongoing multicolor photometry and visual observations are requested.
Requested Data Types:
Photometry, Spectroscopy
Targets
Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
---|---|---|---|---|
R Cyg | 6.10 | M |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
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: N/A; Imported Campaign (Alert Notice #520)