Request to monitor 2138+43 SS Cygni for observations with HST, EUVE, and RXTE
Active Dates: Oct. 10, 1997 – Dec. 31, 1997
Abstract:
We are collaborating with astronomers from Lawrence Livermore National Laboratory in the observations of SS Cyg in an exciting observing program that will involve the Hubble Space Telescope (HST), Extreme Ultraviolet Explorer (EUVE), the Rossi X-ray Timing Explorer (RXTE), and ground-based telescopes. From now until the end of December 1997, these three satellites have been scheduled to observe SS Cyg as a target-of-opportunity object during a maximum. One of the goals of this observing run is to carry out a multiwavelength search for very small-amplitude and very short-period oscillations of the white dwarf.
Justification:
In order to be able to carry out this year's campaign, the investigating astronomers have requested that we inform them when SS Cyg starts to go into outburst, i.e., brightens, and to continue to keep them informed throughout the outburst so that the satellites may be scheduled to observe SS Cyg. Certain satellite observations, due to scheduling constraints such as those for HST, will or will not be scheduled based on whether the outburst is a narrow or wide one, so timely notification of the onset of the outburst and up-to-the-minute information on the behavior of SS Cyg throughout the outburst are essential.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SS Cyg | 7.70 | UGSS |
Cadence: Not Specified Precision: 100 |
Not Requested |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
B (Johnson)
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: Janet A. Mattei; Imported Campaign (Alert Notice #241)