Terrestrial Zone Debris Disk Candidates in H & Χ Persei
نویسندگان
چکیده
We analyze 8 sources with strong mid-infrared excesses in the 13 Myr-old double cluster h & χ Persei. New optical spectra and broadband SEDs (0.36-8 μm) are consistent with cluster membership. We show that material with T∼300-400 K and Ld/L⋆ ∼10 -10 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 & χ Persei stars may have debris from terrestrial zone planet formation. Subject headings: planetary systems: formation planetary systems: protoplanetary disks
منابع مشابه
Terrestrial Zone Debris Disk Candidates in H and Χ Persei
We analyze 8 sources with strong mid-infrared excesses in the 13 Myr-old double cluster h and χ Persei. New optical spectra and broadband SEDs (0.36-8 μm) are consistent with cluster membership. We show that material with T∼300-400 K and Ld/L⋆ ∼10 -10 produces the excesses in these sources. Optically-thick blackbody disk models including those with large inner holes do not match the observed SE...
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تاریخ انتشار 2008