Activity and Rotation in the Young Cluster h Per

Costanza Argiroffi, Caramazza, Moraux, Argiroffi, Bouvier, Micela

Risultato della ricerca: Otherpeer review


We study the rotation-activity relationship for low-mass members of the young cluster h Persei, a ~13 Myr old cluster. h Per, thanks to its age, allows us to link the rotation-activity relation observed for main-sequence stars to the still unexplained activity levels of very young clusters.We constrained the activity levels of h Per members by analyzing a deep Chandra/ACIS-I observation pointed to the central field of h Per. We combined this X-ray catalog with the catalog of h Per members with measured rotational period, presented by Moraux et al. (2013). We obtained a final catalog of 202 h Per members with measured X-ray luminosity and rotational period. We investigate the rotation-activity relation of h Per members considering different mass ranges. We find that stars with 1.3 M⊙ > M 1.4 M⊙ show significant evidence of supersaturation for short periods. This phenomenon is instead not observed for lower mass stars.
Lingua originaleEnglish
Numero di pagine4
Stato di pubblicazionePublished - 2014

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.2700.2701???
  • ???subjectarea.asjc.3100.3103???
  • ???subjectarea.asjc.2900.2916???
  • ???subjectarea.asjc.2700.2739???
  • ???subjectarea.asjc.1900.1912???


Entra nei temi di ricerca di 'Activity and Rotation in the Young Cluster h Per'. Insieme formano una fingerprint unica.

Cita questo