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The seeds direct imaging survey for planets and scattered dust emission in debris disk systems
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Usuda, Tomonori Crepp, Justin Kuzuhara, Masayuki Brandner, Wolfgang Hashimoto, Jun Abe, Lyu Grady, Carol A. Moro-Martin, Amaya Currie, Thayne Goto, Miwa Hayashi, Masahiro Kudo, Tomoyuki Hayashi, Saeko Kusakabe, Nobuhiko Janson Sr., Markus Brandt, Timothy McElwain, M. W. Fukagawa, Misato Hayano, Yutaka Carson, Joseph C. Fedlt Sr., Markus Thalmann, Christian Guyon, Olivier Egner, Sebastian Itoh, Yoichi |
| Copyright Year | 2013 |
| Description | Debris disks around young main-sequence stars often have gaps and cavities which for a long time have been interpreted as possibly being caused by planets. In recent years, several giant planet discoveries have been made in systems hosting disks of precisely this nature, further implying that interactions with planets could be a common cause of such disk structures. As part of the SEEDS high-contrast imaging survey, we are surveying a population of debris disk-hosting stars with gaps and cavities implied by their spectral energy distributions, in order to attempt to spatially resolve the disk as well as to detect any planets that may be responsible for the disk structure. Here we report on intermediate results from this survey. Five debris disks have been spatially resolved, and a number of faint point sources have been discovered, most of which have been tested for common proper motion, which in each case has excluded physical companionship with the target stars. From the detection limits of the 50 targets that have been observed, we find that beta Pic b-like planets (approximately 10M(sub jup) planets around G-A-type stars) near the gap edges are less frequent than 15-30%, implying that if giant planets are the dominant cause of these wide (27 AU on average) gaps, they are generally less massive than beta Pic b. |
| File Size | 997983 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140010439 |
| Archival Resource Key | ark:/13960/t6353ng3t |
| Language | English |
| Publisher Date | 2013-06-03 |
| Access Restriction | Open |
| Subject Keyword | High-contrast Imaging Debris Disk-hosting Stars Seeds Surveys Point Sources Stellar Envelopes Protoplanetary Disks Space Debris Extrasolar Planets Gas Giant Planets Spectral Energy Distribution Imaging Techniques Main Sequence Stars Data Reduction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
