EC20058 Amplitude Spectrum, Runs 1 - 10 July
| Peak | Frequency | Period |
| Number | [microhertz] | [seconds] |
| 1 | 1852.822 | 539.717 |
| 2 | 1903.495 | 525.350 |
| 3 | 2852.192 | 350.607 |
| 4 | 2998.579 | 333.491 |
| 5 | 3558.789 | 280.994 |
| 6 | 3893.320 | 256.850 |
| 7 | 4887.998 | 204.583 |
| 8 | 5128.691 | 194.982 |
| 9 | 7452.109 | 134.190 |
| 10 | 9021.542 | 110.846 |
| 11 | 10030.795 | 99.693 |
From Austin control
20:00 UT, 8 July:
A careful look at the new data shows that there is a significant
window alias peak at 15 microHz, however after pre-whitening, there is
still power present with 15 microHz splitting only for the peaks labelled
7 and 8 on the web page, and for the two smaller peaks surrounding peak 5.
5 and 6 do not show this, nor do 3 and 4. If 5, 6, 3, and 4 are same l
(presumably l=1) then the others that show something at 15 microHz show
a mean period spacing of 10s and are presumably l=2. If the 10s period
spacing is l=2, the mass is about 1.05, if it is l=3, the mass is about
0.85. It is interesting to note that in either case this would be one
of the most massive DB stars known. If the more massive result is
correct, EC20058 is about the same distance as GD 358 and should have
a similar parallax and possibly a similar proper motion. More later.
Darragh has transformed only Dave's SAAO data by itself (to minimize
any effects at 15 microHz) and we will see...
