Search
Close
Search
Advanced Search
Search Menu
AI Discovery Assistant
errata, addenda, gravitational waves, techniques: radial velocities, ephemerides, stars: neutron, X-ray: individual: (Sco X-1)

This is a correction to the paper entitled ‘Precision Ephemerides for Gravitational-wave Searches – IV. Corrected and refined ephemeris for Scorpius X-1’ published in Monthly Notices of the Royal Astronomical Society, Volume 520, Issue 4, April 2023, Pages 5317–5330, DOI: 10.1093/mnras/stad366.

In the original publication, there was a typographical error in table 2, where the stated uncertainty on the orbital period was given as 0.0000007 days, which is incorrect and inconsistent with the P given in seconds. The uncertainty on the period in days should read 0.0000002 days. We take the opportunity via this correction to give the orbital period to a greater number of significant figures in the updated version of Table 2. This error has now been rectified in the online version of the manuscript. This typographical error does not affect the published chains, which remain the authoritative source of parameters.

Table 1.
Open in new tab

Tabulated posterior distribution summary statistics for our ephemeris. Values correspond to the posterior median, while uncertainties represent the marginal 1σ confidence intervals. Explicitly, the value of T0 refers to the inferior conjunction of the companion star, and Tasc,ns refers to the time of ascending node crossing for the NS, moving away from the observer. The top rows assume zero eccentricity. Our upper limit on the eccentricity is given in the bottom row, as the 90th percentile of the marginal eccentricity distribution.

ParameterValueUnits
T02456723.3272 ± 0.0004(BJD UTC)
1078170682 ± 33(GPS s)
Tasc,ns1078153676 ± 33(GPS s)
P0.78731387 ± 0.00000019(d)
68023.919 ± 0.017(s)
K76.8 ± 0.2(km s−1)
γ−113.8 ± 0.2(km s−1)
e≤0.0132
ParameterValueUnits
T02456723.3272 ± 0.0004(BJD UTC)
1078170682 ± 33(GPS s)
Tasc,ns1078153676 ± 33(GPS s)
P0.78731387 ± 0.00000019(d)
68023.919 ± 0.017(s)
K76.8 ± 0.2(km s−1)
γ−113.8 ± 0.2(km s−1)
e≤0.0132
Table 1.
Open in new tab

Tabulated posterior distribution summary statistics for our ephemeris. Values correspond to the posterior median, while uncertainties represent the marginal 1σ confidence intervals. Explicitly, the value of T0 refers to the inferior conjunction of the companion star, and Tasc,ns refers to the time of ascending node crossing for the NS, moving away from the observer. The top rows assume zero eccentricity. Our upper limit on the eccentricity is given in the bottom row, as the 90th percentile of the marginal eccentricity distribution.

ParameterValueUnits
T02456723.3272 ± 0.0004(BJD UTC)
1078170682 ± 33(GPS s)
Tasc,ns1078153676 ± 33(GPS s)
P0.78731387 ± 0.00000019(d)
68023.919 ± 0.017(s)
K76.8 ± 0.2(km s−1)
γ−113.8 ± 0.2(km s−1)
e≤0.0132
ParameterValueUnits
T02456723.3272 ± 0.0004(BJD UTC)
1078170682 ± 33(GPS s)
Tasc,ns1078153676 ± 33(GPS s)
P0.78731387 ± 0.00000019(d)
68023.919 ± 0.017(s)
K76.8 ± 0.2(km s−1)
γ−113.8 ± 0.2(km s−1)
e≤0.0132
© 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Issue Section:
Correction
Download all slides