DOI QR코드

DOI QR Code

PROPERTIES OF DUST IN VARIOUS ENVIRONMENTS OF NEARBY GALAXIES

  • Received : 2014.09.30
  • Accepted : 2016.10.20
  • Published : 2017.03.31

Abstract

We have performed systematic studies of the properties of dust in various environments of nearby galaxies with AKARI. The unique capabilities of AKARI, such as near-infrared (near-IR) spectroscopy combined with all-sky coverage in the mid- and far-IR, enable us to study processing of dust, particularly carbonaceous grains includings polycyclic aromatic hydrocarbons (PAHs), for unbiased samples of nearby galaxies. In this paper, we first review our recent results on individual galaxies, highlighting the uniqueness of AKARI data for studies of nearby galaxies. Then we present results of our systematic studies on nearby starburst and early-type galaxies. From the former study based on the near-IR spectroscopy and mid-IR all-sky survey data, we find that the properties of PAHs change systematically from IR galaxies to ultraluminous IR galaxies, depending on the IR luminosity of a galaxy or galaxy population. From the latter study based on the mid- and far-IR all-sky survey data, we find that there is a global correlation between the amounts of dust and old stars in early-type galaxies, giving an observational constraint on the origin of the dust.

Keywords

References

  1. Appleton, P. N., et al., 2013, Shock-enhanced $C^+$ Emission and the Detection of $H_2O$ from the Stephan's Quintet Group-wide Shock Using Herschel, ApJ, 777, 66 https://doi.org/10.1088/0004-637X/777/1/66
  2. Compiegne, M., et al., 2011, The global dust SED: tracing the nature and evolution of dust with DustEM, A&A, 525, 103 https://doi.org/10.1051/0004-6361/201015292
  3. Draine, B. T. & Li, A., 2007, Infrared Emission from Interstellar Dust. IV. the Silicate-graphite-PAH Model in the Post-Spitzer Era, ApJ, 657, 810 https://doi.org/10.1086/511055
  4. Goudfrooij, P. & de Jong, T., 1995, Interstellar matter in Shapley-Ames elliptical galaxies. IV. A diusely distributed component of dust and its eect on colour gradients, A&A, 298, 784
  5. Imanishi, M., Nakagawa, T., Shirahata, M., Ohyama, Y., & Onaka, T., 2010, AKARI IRC Infrared $2.5-5{\mu}m$ Spectroscopy of a Large Sample of Luminous Infrared Galaxies, ApJ, 721, 1233 https://doi.org/10.1088/0004-637X/721/2/1233
  6. Kaneda, H., Yamagishi, M., Suzuki, T., & Onaka, T., 2009, AKARI Detection of Far-Infrared Dust Emission in the Halo of NGC253, ApJ, 698, L125 https://doi.org/10.1088/0004-637X/698/2/L125
  7. Kaneda, H., et al., 2010, Large-scale distributions of mid- and far-infrared emission from the center to the halo of M82 revealed with AKARI, A&A, 514, A14 https://doi.org/10.1051/0004-6361/200913769
  8. Kaneda, H., Ishihara, D., Onaka, T., Suzuki, T., Mori, T., Oyabu, S., & Yamagishi, M., 2011, Properties of dust and PAHs in the hot plasma of the elliptical galaxy NGC 4125 revealed with AKARI and Spitzer Space Telescope, PASJ, 63, 601 https://doi.org/10.1093/pasj/63.3.601
  9. Knapp, G. R., Guhathakurta, P., Kim, D.-W., & Jura, M. A., 1989, Interstellar matter in early-type galaxies. I - IRAS flux densities, ApJS, 70, 329 https://doi.org/10.1086/191342
  10. Knapp, G. R., Gunn, J. E. & Wynn-Williams, C. G., 1992, Infrared emission and mass loss from evolved stars in elliptical galaxies, ApJ, 399, 76 https://doi.org/10.1086/171904
  11. Kondo, T. et al., 2012, The Central Region of the Barred Spiral Galaxy NGC 1097 Probed by AKARI Near-infrared Spectroscopy, ApJ L751, 18
  12. Onaka, T., Matsumoto, H., Sakon, I., & Kaneda, H., 2010, Detection of unidentied infrared bands in a H lament in the dwarf galaxy NGC 1569 with AKARI, A&A, 514, A15 https://doi.org/10.1051/0004-6361/200913770
  13. Suzuki, T., Kaneda, H., Onaka, T., & Kitayama, T., 2011, Far-infrared Emission from the Intergalactic Medium in Stephan's Quintet Revealed by AKARI, ApJ, 731, L12 https://doi.org/10.1088/2041-8205/731/1/L12
  14. Yamada, R., Oyabu, S., Kaneda, H., Yamagishi, M., Ishihara, D., Kim, J. -H., & Im, M., 2013, A Relation of the PAH $3.3{\mu}m$ Feature with Star-forming Activity for Galaxies with a Wide Range of Infrared Luminosity, PASJ, 65, 103 https://doi.org/10.1093/pasj/65.5.103
  15. Yamagishi, M., Kaneda, H., Ishihara, D., Oyabu, S., Onaka, T., Shimonishi, T., & Suzuki, T., 2011, AKARI Near-infrared Spectroscopic Observations of Interstellar Ices in the Edge-on Starburst Galaxy NGC 253, ApJ, 731, L20 https://doi.org/10.1088/2041-8205/731/1/L20
  16. Yamagishi, M., et al., 2012, AKARI near-infrared spectroscopy of the aromatic and aliphatic hydrocarbon emission features in the galactic superwind of M82, A&A, 541, 10
  17. Yamagishi, M., et al., 2013, Dierence in the Spatial Distribution between $H_2O$ and $CO_2$ Ices in M 82 Found with AKARI, ApJ, 773, 37 https://doi.org/10.1088/0004-637X/773/1/37