TESS Science Conference 2
Published July 23, 2021 | Version v1
Poster Open

First Gyrochronology Estimate for the AB Doradus Moving Group

Creators

  • 1. Universidad Nacional Mayor de San Marcos
  • 2. American Museum of Natural History
  • 3. American Museum of Natural History, CUNY Graduate Center
  • 4. Columbia University, American Museum of Natural History
  • 5. American Museum of Natural HistoryAmerican Museum of Natural History

Description

Determining ages of stars is one of the most elusive tasks in Astrophysical studies. Stellar evolution is a slow process and is dependent upon the temperature and mass of a given object. Young associations  near the Sun provide a unique opportunity to evaluate ages as well as age indicators. Examining the gyrochronology relation for young associations lets us probe how stellar rotation changes with mass as these groups of stars are born together, evolve together, and move through space as an ensemble. At 120±20 Myr,  AB Doradus is one of the closest moving groups to Earth, which allows us to obtain high signal-to-noise light curves for its stellar down to brown dwarf members. The all-sky TESS mission is ideal for observing a group like AB Doradus given the spatial extent of this moving group. In this poster, we present rotation periods for 1272 confirmed and candidate members of AB Doradus across multiple TESS sectors to provide the first ever look at the gyrochronology relation for this association.

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Lisseth_Gonzales_AB Dor.pdf

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Additional details

References

  • Curtis et al. (2020). When Do Stalled Stars Resume Spinning Down? Advancing Gyrochronology with Ruprecht 147
  • Hattori et al. (2021), The unpopular Package: a Data-driven Approach to De-trend TESS Full Frame Image Light Curves
  • . VanderPlas (2018). Understanding the Lomb–Scargle Periodogram
  • Luhman et al. (2005). The age of AB Doradus
  • Ortega et al. (2007). On the common origin of the AB Doradus moving group and the Pleiades cluster
  • Zuckerman et al. (2004). The AB Doradus Moving Group
  • Bell et al. (2015).On the common origin of the AB Doradus moving group and the Pleiades cluster