UPDATE: Zenodo migration postponed to Oct 13 from 06:00-08:00 UTC. Read the announcement.

Poster Open Access

Chromospheric activity to age relationship among Sun-like stars

Gondoin, Philippe

Editor(s)
Wolk, Scott

Most recent studies have established the viability of deriving usable chromospheric ages for solar-type stars older than 600 Myrs up to at least 6 Gyr, providing that mass and metallicity effects are accounted for. In order to avoid the uncertainty associated with the age determination of field stars, I characterised the long-term evolution of chromospheric activity on Sun-like stars by combining an empirical model of their rotation evolution in intermediate-age open clusters with rotation-activity relationships. The results indicate that the chromospheric activity evolution of Sun-like stars with ages between 1 and 6 Gyr and masses between 0.7 and 1.1 M☉ is steeper than the relationship R’HK ~ age^{-0.5} generally used. 

Files (416.4 kB)
Name Size
PGChromosphericActivityPoster_CoolStars_2021.pdf
md5:cde444bc7f3b06b85225675fd420cd6b
416.4 kB Download
  • Barnes et al. 2016, ApJ, 823, 18

  • Booth et al. 2020, MNRAS, 491, 455

  • Brewer et al. 2016, ApJ, 151, 66

  • Corsaro et al. 2017, A&A, 605, A3

  • Curtis et al. 2019, ApJ, 879, 49

  • Gondoin 2018, A&A, 616, A154

  • Gondoin 2020, AN, 341, 557

  • Gondoin 2020, A&A, 641, A110

  • Liu et al. 2019, A&A, 627, A117

  • Lorenzo-Oliveira et al. 2016, A&A, 594, L3

  • Mamajek & Hillenbrand 2008, ApJ, 687, 1264

  • Meibom et al. 2011, ApJ, 733, L9

  • Meibom et al. 2015. Nature, 517

  • Sandquist et al. 2016, ApJ, 831, 11

  • Spada & Lanzafame 2020, A7A, 636, A76

  • Vandenberg et al. 2004, PASP, 116, 997

  • Zhang et al. 2019, ApJ, 887, 84

48
56
views
downloads
All versions This version
Views 4848
Downloads 5656
Data volume 23.3 MB23.3 MB
Unique views 4545
Unique downloads 5353

Share

Cite as