Monitoring of nova-like variables in support of Chandra observations
Abstract:
Dr. Koji Mukai (NASA-Greenbelt Space Flight Center) has requested AAVSO assistance in monitoring several nova-like variables in support of upcoming Chandra observations. The first target, KQ Mon, is scheduled to be observed with Chandra during the week of 2018 October 15-22.
Justification:
We think we know how dwarf novae behave in X-rays, through various campaigns (famously that one on SS Cyg in outburst that Janet Mattei (and AAVSO observers) was heavily involved in, with Pete Wheatley and Chris Mauche, 2003MNRAS.345...49W): they are X-ray bright in optical quiescence, and fainter and softer in X-rays during outburst. In the optical, we think of nova-likes as systems in permanent outburst—but in X-rays, they don’t quite resemble dwarf novae in outburst. In fact, we haven’t seen a clear pattern, when we made X-ray observations of nova-like systems at various optical magnitudes. This Chandra program is part of an effort to look for patterns and to understand their X-ray emission.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| V0410 Peg | 11.00 | E: |
Cadence: Not Specified Precision: 100 |
Not Requested |
| 1SWASP J022916.91-395901.4 | 12.80 | UGZ/IW+VY |
Cadence: Not Specified Precision: 100 |
Not Requested |
| KQ Mon | 12.10 | NL |
Cadence: Not Specified Precision: 100 |
Not Requested |
| EC 21178-5417 | 13.40 | NL+E |
Cadence: Not Specified Precision: 100 |
Not Requested |
| LQ Peg | 14.30 | NL/VY |
Cadence: Not Specified Precision: 100 |
Not Requested |
| UU Aqr | 12.85 | NL/VY+E |
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. Koji Mukai; Imported Campaign (Alert Notice #652)