Hint of curvature in the orbital motion of the exoplanet 51 Eridani b using 3 yr of VLT/SPHERE monitoring

Free Access

Table A.1

SPHERE astrometry relative to the star of 51 Eridani b obtained with SDI+TLOCI and SDI+ANDROMEDA.

Epoch	Spectral band	ρ (mas)	PA (°)
SDI+TLOCI

2015.74	K1	453.4 ± 4.4	167.15 ± 0.55
2015.74	H	453.9 ± 15.9	166.1 ± 2.0
2016.04	H2	456.7 ± 6.6	165.50 ± 0.83
2016.95	H2	453.6 ± 5.7	160.30 ± 0.72
2017.74	K1	449.0 ± 2.9	155.67 ± 0.37
2018.72	K1	443.3 ± 4.2	150.23 ± 0.54

SDI+ANDROMEDA

2015.74	K1	448.6 ± 1.4	167.45 ± 0.06
2015.74	H	467.4 ± 2.9	167.09 ± 0.07
2016.04^(a)	H2	–	–
2016.95	H2	456.1 ± 1.6	160.06 ± 0.06
2017.74	K1	447.9 ± 1.3	155.80 ± 0.04
2018.72	K1	439.0 ± 1.2	150.09 ± 0.03

Notes. The uncertainties are from the measurement procedure only and are given at 1σ. ^(a) It was not possible to extract the astrometry of the planet.

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.