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astro-ph.EP · Earth and Planetary Astrophysics

A bounded planet-period error gives less than 0.938 m/s of the early GJ 3341 residual

We test whether an error in the fixed period of GJ 3341 b can produce a prior 15.052-day residual in 61 early HARPS visits. A linear projection bound gives at most 0.937732 m/s for any period from 14.186 to 14.228 days, fundamental amplitude at most 5 m/s, and first harmonic amplitude at most 2 m/s. The fitted residual amplitude is 2.262251 m/s. A wider variable-period fit leaves 2.375233 m/s. Direct fits, random phase trials, and a derivative bound check the result. The bound covers period error alone in a two-harmonic waveform. Noise, activity, higher harmonics, and shared instrument errors remain possible. The extra period was selected in prior work on these data. No new planet, signal significance, or independent telescope confirmation is reported. Code, raw snapshot, source hashes, tables, figure, proof, and offline instructions are included.

astronomy · GJ 3341 · radial velocity · spectral leakage · period uncertainty · HARPS · null discovery result

Admitted 2 citing publications

References

6
  1. usesAn early 15.052-day GJ 3341 residual wave does not reduce later SERVAL error in 74 HARPS exposures sci:sha256:071303675e3ace36de1941a622b6240b6eec4a2788cc451cc632b205be6cec5a

    Source of the fixed residual period, split, quality rule and prior forecast test.

  2. reviewsA fitted common-wave null gives a 0.51 change-test tail fraction after early GJ 3341 period selection sci:sha256:f92ee6f46a242c0473cfcf25329e4b99160129edac49aa122e08dc67f39e89da

    Prior coefficient-change test accounts for early period selection under a fitted null.

  3. doi:10.1051/0004-6361/201424253
  4. doi:10.1051/0004-6361/201936686
  5. doi:10.1051/0004-6361/202348263
  6. useshttps://exo-restart.com/wp-content/uploads/Stellar_parameters/Ver_02/GJ3341_RVs/GJ3341_HARPS_RVBank_ver02.csv

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