BRIGHT DEBRIS DISK CANDIDATES DETECTED WITH THEAKARI/FAR-INFRARED SURVEYOR
نویسندگان
چکیده
منابع مشابه
Terrestrial Zone Debris Disk Candidates in H & Χ Persei
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...
متن کاملTerrestrial 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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A set of six debris disk candidates identified with IRAS or WISE excesses were observed at either 350 μm or 450 μm with the Caltech Submillimeter Observatory. Five of the targets – HIP 51658, HIP 68160, HIP 73512, HIP 76375, and HIP 112460 – have among the largest measured excess emission from cold dust from IRAS in the 25-100 μm bands. Single temperature blackbody fits to the excess dust emiss...
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Context. Detecting and characterizing circumstellar dust is a way to study the architecture and evolution of planetary systems. Cold dust in debris disks only traces the outer regions. Warm and hot exozodiacal dust needs to be studied in order to trace regions close to the habitable zone. Aims. We aim to determine the prevalence and to constrain the properties of hot exozodiacal dust around nea...
متن کاملThe Dust Properties of Eight Debris Disk Candidates as Determined by Submillimeter Photometry
The nature of far-infrared dust emission toward main sequence stars, whether interstellar or circumstellar, can be deduced from submillimeter photometry. We present JCMT/SCUBA flux measurements at 850μm toward 8 stars with large photospheric excesses at 60–100μm. 5 sources were detected at 3σ or greater significance and one was marginally detected at 2.5σ. The inferred dust masses and temperatu...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2014
ISSN: 0004-6256,1538-3881
DOI: 10.1088/0004-6256/148/1/3