Terrestrial zone debris disk candidates in h and χ persei

Thayne Currie, Scott J. Kenyon, George Rieke, Zoltan Balog, Benjamin C. Bromley

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

We analyze eight sources with strong mid-infrared excesses in the 13 Myr old double cluster h and \Persei. New optical spectra and broadband spectral energy distributions (SEDs; 0.36-8 μm) are consistent with cluster membership. We show that the material with T ∼ 300-400 K and L d/L* ∼ 10-4 to 10-3 produces the excesses in these sources. Optically thick blackbody disk models, including those with large inner holes, do not match the observed SEDs. The SEDs of optically thin debris disks produced from terrestrial planet formation calculations match the observations well. Thus, some h and χ Persei stars may have debris from terrestrial zone planet formation.

Original languageEnglish (US)
Pages (from-to)L105-L108
JournalAstrophysical Journal
Volume663
Issue number2 II
DOIs
StatePublished - Jul 10 2007

Keywords

  • Planetary systems: formation
  • Planetary systems: protoplanetary disks

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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