The subdwarf B star SB 290 – A fast rotator on the extreme horizontal branch

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Volume 551 (March 2013)

A&A, 551 (2013) L4

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Table A.1

Radial velocities of SB 290.

Mid-HJD	RV [km s^-1]	Instrument
−2 400 000

40 539.50¹	−52.3 ± 7.5	Graham & Slettebak (1973)

46 724.57	−15.9 ± 3.2	CASPEC

52 495.66123	−40.4 ± 3.4	FEROS
52 495.70637	−39.5 ± 4.5
53 953.84358	−4.1 ± 0.6
53 974.88413	−12.0 ± 0.7

55 144.62633	−6.4 ± 3.1	EFOSC2
55 144.66202	−12.0 ± 5.0
55 145.62589	−8.5 ± 5.4
55 145.62803	−11.9 ± 5.2
55 145.63016	−9.1 ± 5.8
55 145.63229	−9.7 ± 5.8
55 145.63443	−11.0 ± 5.3
55 145.63656	−8.0 ± 5.6
55 145.66389	−8.3 ± 6.1
55 145.66602	−9.8 ± 4.7
55 145.66815	−10.8 ± 6.0
55 145.72750	−5.5 ± 7.7
55 145.72998	−21.7 ± 7.6
55 145.73247	−26.0 ± 9.4
55 146.59354	−6.1 ± 5.5
55 146.59602	−3.0 ± 6.0
55 146.59851	−8.4 ± 5.0
55 146.62859	−10.8 ± 4.3
55 146.65136	−9.8 ± 5.7
55 146.67425	−7.5 ± 5.3

55 393.22067	−26 ± 5	CYCLOPS²
55 393.25356	−24 ± 5
55 393.28933	−35 ± 5
55 394.17695	−28 ± 5
55 394.26083	−27 ± 5
55 394.26853	−23 ± 5
55 394.27977	−24 ± 5
55 394.28749	−25 ± 5
55 394.33581	−25 ± 5
55 395.22288	−25 ± 5
55 395.23057	−24 ± 5
55 395.23918	−25 ± 5
55 395.24687	−22 ± 5
55 395.32561	−23 ± 5
55 395.33330	−20 ± 5
55 395.34099	−26 ± 5
55 396.16408	−21 ± 5
55 396.17177	−17 ± 5
55 396.18130	−26 ± 5
55 396.21822	−30 ± 5

Notes.

⁽¹⁾

The observing time could only be reconstructed to within this night.

⁽²⁾

Due to the highly variable signal-to-noise ratio of the single spectra, consecutive spectra have been coadded until the quality was sufficient to measure the RV to within about the given uncertainty. In this way, 20 RV epochs have been obtained.

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