Table 1
Log of the BeppoSAX and RXTE observations of 4U 0115 + 63 used for this work.
| Obs | Instrument | Start time [UT] | Stop time [UT] | Exposures [ks] | P [s] | Flux (2–100 keV) | ||
| SAX | MECS | HPGSPC | PDS | [10-8 erg cm-2 s-1] | ||||
| RXTE | PCA | HEXTE-A | HEXTE-B | |||||
|
|
||||||||
| (a) | SAX | 1999-03-06 14:48 | 1999-03-07 14:23 | 54.9 | 48.8 | 44.3 | 3.61456[2] | 1.61 ± 0.01 |
| (b) | RXTE | 1999-03-07 04:09 | 1999-03-07 09:26 | 17.1 | 7.3 | 7.2 | 3.614593[6] | 1.70 ± 0.02 |
| (c) | RXTE | 1999-03-12 00:02 | 1999-03-12 07:30 | 13.8 | 7.7 | 7.7 | 3.61428[2] | 2.05 ± 0.01 |
| (d) | SAX | 1999-03-19 17:05 | 1999-03-20 08:42 | 31.2 | 32.0 | 30.0 | 3.613816[3]∗ | 1.62 ± 0.01 |
| (e) | RXTE | 1999-03-21 06:27 | 1999-03-21 08:33 | 8.8 | 1.5 | 1.4 | 3.61441[8] | 2.05 ± 0.04 |
| (f) | SAX | 1999-03-26 17:31 | 1999-03-27 17:34 | 53.7 | 42.5 | 48.3 | 3.614246[2] | 1.07 ± 0.02 |
| (g) | RXTE | 1999-03-28 01:04 | 1999-03-28 08:12 | 8.8 | 1.7 | 1.7 | 3.61443[1] | 1.13 ± 0.08 |
| (h) | RXTE | 1999-03-29 04:15 | 1999-03-29 11:17 | 5.9 | 3.5 | 3.5 | 3.61444[1] | 1.04 ± 0.06 |
Notes. The uncertainty on spin period measurements is at 1σ c.l. on the last digit. The source flux is measured from the spectral analysis and the uncertainty is only statistical at 90% c.l. Assuming a source distance of 7 kpc, a flux of 2 × 10-8 erg s-1 cm-2 would correspond to L2 − 100 keV = 1.2 × 1038 erg s-1.∗The period is referred to MJD 51 256.7037037 (TBD), when Ṗ = −(1.56 ± 0.06) × 10-9 s/s.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.