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arXiv · 0706.0535

Terrestrial Zone Debris Disk Candidates in h and chi Persei

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

We analyze 8 sources with strong mid-infrared excesses in the 13 Myr-old double cluster h and chi Persei. New optical spectra and broadband SEDs (0.36-8 mu_m) are consistent with cluster membership. We show that material with T ~ 300-400 K and Ld/Lstar ~ 10^-4-10^-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 chi Persei stars may have debris from terrestrial zone planet formation.

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Thayne Currie, Scott J. Kenyon, George Rieke, Zoltan Balog, Benjamin C. Bromley. 2007-06-28. Terrestrial Zone Debris Disk Candidates in h and chi Persei. https://doi.org/10.1086/520509

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