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Table 2

Observational parameters for the northern hotspot of GRS 1758258 at the 6 cm wavelength.

Epoch RA Dec Flux Deconvolved Radio Minimum Magnetic Relativistic
(J2000.0) (J2000.0) density angular size luminosity energy field e- density
18h01m −25°43′ (mJy) (arc-second2) (erg s-1) (erg) (Gauss) (cm-3)

1992 12 8 ± 0 1 48′′ ± 1′′ 0.37 ± 0.03 (18 ± 3) × ( ≤ 9) 1.0 × 1031 ≤ 3.3 × 1044 ≥ 4.0 × 10-5 ≥ 7.6 × 10-4
1997 13 00 ± 0 02 35.̋6 ± 0.̋7 0.26 ± 0.02 (15 ± 2) × (6 ± 1) 7.1 × 1030 1.9 × 1044 4.7 × 10-5 1.0 × 10-3
2001a 12 9 ± 0 1 33′′ ± 1′′ 0.29 ± 0.04 (25 ± 4) × (4 ± 2) 7.9 × 1030 2.1 × 1044 4.6 × 10-5 1.2 × 10-3
13 13 ± 0 03 52′′ ± 1′′ 0.26 ± 0.04 (24 ± 6) × (3 ± 2) 7.1 × 1030 1.6 × 1044 5.1 × 10-5 1.1 × 10-3
2008 13 11s ± 0 03 36.̋8 ± 0.̋6 0.18 ± 0.02 (13 ± 2) × (8 ± 1) 4.9 × 1030 1.6 × 1044 3.9 × 10-5 7.4 × 10-4

Notes.

(a)

Northern hotspot appears to have fragmented into two components. Data for both are given.

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