Young exoplanets in TESS sectors 1-5 Virtual Observatory Resource

Authors
  1. Battley M.P.
  2. Pollacco D.
  3. Armstrong D.J.
  4. Published by
    CDS
Abstract

Young (<1Gyr) exoplanets represent a critically important area of exoplanet research, as they offer the opportunity to learn about the formation and early dynamic history of exoplanetary systems. However, finding young exoplanets is significantly complicated by the fast rotation and complex activity of their young host stars, which are often not well handled by state-of-the-art automatic pipelines. This work presents an alternative LOWESS-based pipeline focused specifically on detrending young stellar light curves from the 30-min cadence full-frame images produced by the Transiting Exoplanet Survey Satellite (TESS), and includes improvements such as automatic peak cutting of stellar variability and interpolation over masked transits to improve periodogram visibility and returned transit shapes. This work presents the details of the developed pipeline, along with initial results from its application to young stars within stellar associations in Sectors 1-5 of the TESS data. While no new exoplanet candidate signals were found in this work, interesting results included the recovery of all known 2-min TOIs around young stars in Sectors 1-5 from 30-min data alone, the recovery of the young exoplanet DS Tuc Ab, a number of young eclipsing binaries and a wide array of interesting rotation. A sensitivity analysis was also undertaken for each star, showing how the recovery of injected planets varied with both depth and period for each individual target. Challenges for future searches for young exoplanets are discussed, the largest being stellar rotation with periods less than 1d and a lack of a large sample of confirmed young stars.

Keywords
  1. stellar-associations
  2. exoplanets
  3. astrometry
  4. visible-astronomy
  5. infrared-astronomy
Bibliographic source Bibcode
2020MNRAS.496.1197B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/496/1197
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/496/1197

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/496/1197
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/496/1197
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/496/1197
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/496/1197/stars?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/496/1197/stars?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/496/1197/stars?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/496/1197/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/496/1197/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/496/1197/table4?

History

2023-09-28T14:18:00Z
Resource record created
2023-09-28T14:18:00Z
Created
2023-10-11T13:58:26Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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