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DEBRIS DISKS AND THE ZODIACAL LIGHT EXPLORED BY THE AKARI MID-INFRARED ALL-SKY SURVEY

  • Ishihara, Daisuke (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Takeuchi, Nami (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Kondo, Toru (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Kobayashi, Hiroshi (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Kaneda, Hidehiro (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Inutsuka, Shu-ichiro (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Oyabu, Shinki (Department of Physics, Graduate School of Science, Nagoya University) ;
  • Nagayama, Takahiro (Department of Physics and Astronomy, Graduate School of Science and Engineering, Kagoshima University) ;
  • Fujiwara, Hideaki (Subaru Telescope, National Astronomical Observatory of Japan) ;
  • Onaka, Takashi (Department of Astronomy, Graduate School of Science, The University of Tokyo)
  • Received : 2014.10.03
  • Accepted : 2016.10.20
  • Published : 2017.03.31
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Abstract

Debris disks are circumstellar dust disks around main-sequence stars. They are important observational clues to understanding the planetary system formation. The zodiacal light is the thermal emission from the dust disk in our Solar system. For a comprehensive understanding of the nature and the evolution of dust disks around main-sequence stars, we try a comparative study of debris disks and the zodiacal light. We search for debris disks using the AKARI mid-infrared all-sky point source catalog. By applying accurate flux estimate of the photospheric emission based on the follow-up near-infrared observations with IRSF, we have improved the detection rate of debris disks. For a detailed study of the structure and grain properties in the zodiacal dust cloud, as an example of dust disks around main-sequence stars, we analyze the AKARI mid-infrared all-sky diffuse maps. As a result of the debris disks search, we found old (>1 Gyr) debris disks which have large excess emission compared to their age, which cannot be explained simply by the conventional steady-state evolution model. From the zodiacal light analysis, we find the possibility that the dust grains trapped in the Earth's resonance orbits have increased by a factor of ~3 in the past ~20 years. Combining these results, we discuss the non-steady processes in debris disks and the zodiacal light.

Keywords

References

  1. Amatsutsu, T., Ishihara, D., Kondo, T., et al., 2014, The Current Status of the AKARI Mid-Infrared All-Sky Diffuse Maps, in this volume
  2. Aumann, H. H., Beichman, C. A., Gillett, F. C., et al., 2014, Discovery of a shell around Alpha Lyrae, ApJ, 278, 23
  3. Beichman, C. A., Bryden, G., Rieke, G. H., et al., 2005, Planets and Infrared Excesses: Preliminary Results from a Spitzer MIPS Survey of Solar-Type Stars, ApJ, 622, 1160 https://doi.org/10.1086/428115
  4. Beichman, C. A., Bryden, G., Stapelfeldt, K. R., et al., 2006, New Debris Disks around Nearby Main-Sequence Stars: Impact on the Direct Detection of Planets, ApJ, 652, 1674 https://doi.org/10.1086/508449
  5. Booth, M., Wyatt, M. C., Morbidelli, A., et al., 2009, The history of the Solar system's debris disc: observable properties of the Kuiper belt, MNRAS, 399, 385 https://doi.org/10.1111/j.1365-2966.2009.15286.x
  6. Bryden, G., Beichman, C. A., Trilling, D. E., et al., 2006, Frequency of Debris Disks around Solar-Type Stars: First Results from a Spitzer MIPS Survey, ApJ, 636, 1098 https://doi.org/10.1086/498093
  7. Chen, C. H., Patten, B. M., Werner, M. W., et al., 2005, A Spitzer Study of Dusty Disks around Nearby, Young Stars, ApJ, 634, 1372 https://doi.org/10.1086/497124
  8. Fitzpatrick, L. E. & Massa, D., 2009, An Analysis of the Shapes of Interstellar Extinction Curves. VI. The Near-IR Extinction Law, ApJ, 699, 1209 https://doi.org/10.1088/0004-637X/699/2/1209
  9. Fujiwara, H., Ishihara, D., Onaka, T., et al. 2013, AKARI/IRC $18{\mu}m$ survey of warm debris disks, A&A, 550, 15 https://doi.org/10.1051/0004-6361/201220332
  10. Kobayashi, H., & Tanaka, H., 2010, Fragmentation model dependence of collision cascades, Icar, 206, 735 https://doi.org/10.1016/j.icarus.2009.10.004
  11. Kondo, T., Ishihara, D., Kaneda, H., et al., 2014, Modeling of the zodiacal light for the AKARI mid-IR all-sky diffuse maps, in this volume
  12. Ishihara, D., Onaka, T., Kataza, H., et al., 2010, The AKARI/IRC mid-infrared all-sky survey, A&A, 514, 1
  13. Hillenbrand, L. A., Carpenter, J. M., Kim, J. S., et al., 2008, The Complete Census of $70{\mu}m$-bright Debris Disks within "the Formation and Evolution of Planetary Systems" Spitzer Legacy Survey of Sun-like Stars, ApJ, 677, 630 https://doi.org/10.1086/529027
  14. Kelsall, T., Weiland, J. L., Franz, B. A., et al., 1989, The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background. II. Model of the Interplanetary Dust Cloud, ApJ, 508, 44
  15. Kurucz, R. L., 1992, in 149, in The Stellar Populations of Galaxies, eds. B. Barbuy, & A. Renzini, IAU Symp., 225
  16. Nagayama, T. Nagashima, C., Nakajima, Y. et al., 2003, SIRUS: a near infrared simultaneous three-band camera, Proc. of SPIE, 4841, 459
  17. Perryman, M. A. C., Lindegren, L., Kovalevsky, J., et al., 1997, The HIPPARCOS Catalogue, A&A, 323, L49
  18. Takeuchi, N., Ishihara, D., Kaneda, H., et al,. 2014, Search for Debris disks by AKARI and IRSF, in this volume
  19. Trilling, D. E., Bryden, G., Beichman, C. A., et al., 2008, Debris Disks around Sun-like Stars, ApJ, 674, 1086 https://doi.org/10.1086/525514
  20. Wright, C. O., Egan, M. P., Kraemer, K. E., & Price, S. D., 2003, The Tycho-2 Spectral Type Catalog, AJ, 125, 359 https://doi.org/10.1086/345511
  21. Wyatt, R., 2008, Evolution of Debris Disks, ARA&A, 46, 339 https://doi.org/10.1146/annurev.astro.45.051806.110525