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Retired A Stars and Their Companions VIII: 15 New Planetary Signals Around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts

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arxiv 1811.03043 v3 pith:CEJVHOAD submitted 2018-11-07 astro-ph.EP

Retired A Stars and Their Companions VIII: 15 New Planetary Signals Around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts

Jacob K. Luhn , Fabienne A. Bastien , Jason T. Wright , John A. Johnson , Andrew W. Howard , Howard Isaacson This is my paper
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keywords aroundplanetsstarssubgianttransitplanetpossibleprobabilities
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We present the discovery of 7 new planets and 8 planet candidates around subgiant stars, as additions to the known sample of planets around "retired A stars" (Johnson et al. 2006). Among these are the possible first 3-planet systems around subgiant stars, HD 163607 and HD 4917. Additionally, we present calculations of possible transit times, durations, depths, and probabilities for all known planets around subgiant (3 < log g < 4) stars, focused on possible transits during the TESS mission. While most have transit probabilities of 1-2%, we find that there are 3 planets with transit probabilities > 9%.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. The GAPS Programme with HARPS-N at TNG LXXVII. Occurrence rates of small close-in planets in the presence of cold Jupiters

    astro-ph.EP 2026-07 accept novelty 6.0

    Close-in small planets occur at ~5–16% around cold-Jupiter hosts, with no strong overall correlation at average stellar mass/metallicity, but elevated rates in dynamically stable inner regions.

  2. The GAPS Programme with HARPS-N at TNG LXXVII. Occurrence rates of small close-in planets in the presence of cold Jupiters

    astro-ph.EP 2026-07 accept novelty 5.5

    Occurrence rates of hot/warm/cool Neptunes and Super-Earths around cold-Jupiter hosts are ~5–16%, higher when the outer giant leaves a stable inner zone, with no strong ISP–CJ correlation at average metallicity.