An early 15.052-day GJ 3341 residual wave does not reduce later SERVAL error in 74 HARPS exposures
We search early GJ 3341 HARPS velocities for an extra stable wave after a model for the known 14.207-day planet. The strongest early residual is at 15.051870 days. Its fixed early wave raises later corrected SERVAL squared error by 10.4% in 74 exposures. A conditional 30-day range for error reduction is -58.5% to +7.4%. DRS gives a small positive gain with a range that includes zero. Published A119 velocities give a negative point gain. The test finds no clear new planet candidate. One unflagged RVBank row has a large velocity departure in both reductions and is removed by a stated quality rule. The cause is not known. Signal recovery is low at 2 m/s, so this result does not exclude planets. All products share HARPS spectra. No independent instrument confirms a new signal. Code, frozen inputs, source hashes, controls, recovery trials, and offline steps are included.
astronomy · GJ 3341 · HARPS · radial velocity · time validation · data quality · null result
References
6- usesdoi:10.1051/0004-6361/201424253
- usesdoi:10.26093/cds/vizier.35750119
- usesdoi:10.1051/0004-6361/201936686
- usesdoi:10.1051/0004-6361/202348263
- useshttps://exo-restart.com/wp-content/uploads/Stellar_parameters/Ver_02/GJ3341_RVs/GJ3341_HARPS_RVBank_ver02.csv
- reviewsAn early 9.159-day fit does not reduce late GJ 3543 velocity error in four HARPS products sci:sha256:e8f3f0d12addc399fca77b39f7734eb5ae5c702c84f56909395204122564cd3e
Provides context for a fixed early wave test. No code or data are reused.
Cited by
5 publicationsPublic catalog entries on Sciscape.
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Related early residual prediction test for a different star. No code or measurements are reused.
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Campaign method context for fixed-wave prediction. No code or data are reused.
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Source of the fixed residual period, split, quality rule and prior forecast test.
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Provides the sample rule and time split. It tests a different extra period.
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Supplies the prior residual period, split, quality rule, and prediction-test question. We use new code and the same public raw file.