Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-24T16:51:46.305Z Has data issue: false hasContentIssue false

Dust evolution in galaxies at z > 7

Published online by Cambridge University Press:  10 June 2020

Tsutomu T. Takeuchi
Affiliation:
Division of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya464-8602, Japan (e-mail: takeuchi.tsutomu@g.mbox.nagoya-u.ac.jp)
Ryosuke S. Asano
Affiliation:
Division of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya464-8602, Japan (e-mail: takeuchi.tsutomu@g.mbox.nagoya-u.ac.jp)
Sayaka Nagasaki
Affiliation:
Division of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya464-8602, Japan (e-mail: takeuchi.tsutomu@g.mbox.nagoya-u.ac.jp)
Takaya Nozawa
Affiliation:
National Astronomical Observatory of Japan
Yoichi Tamura
Affiliation:
Division of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya464-8602, Japan (e-mail: takeuchi.tsutomu@g.mbox.nagoya-u.ac.jp)
Ken Mawatari
Affiliation:
Institute for Cosmic Ray Research, the University of Tokyo
Akio K. Inoue
Affiliation:
Osaka Sangyo University
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Recently huge amount of dust Mdust ≃ 106−7M in galaxies at z = 7–8 has been discovered by ALMA observations. The suggested timescale of the dust production was a few–several×108 yr, while the stellar mass was several × 109M. This amount of dust cannot be easily explained only by a supply from supernovae if we consider the dust destruction by reverse shocks. We propose that these values can be consistently explained if we take into account the grain growth in the interstellar medium (ISM). This scenario successfully reproduces the evolution of the dust mass, as well as the SFR, and stellar mass simultaneously. We conclude that even at such an early epoch of the Universe, the dust grain growth in the ISM plays a significant role in galaxies.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020

References

Asano, R. S., Takeuchi, T. T., Hirashita, H., & Inoue, A. K. 2013, EPS, 65, 213Google Scholar
Asano, R. S., Takeuchi, T. T., Hirashita, H., & Nozawa, T. 2013, MNRAS, 432, 637CrossRefGoogle Scholar
Asano, R. S., Takeuchi, T. T., Hirashita, H., & Nozawa, T. 2014, MNRAS, 440, 134CrossRefGoogle Scholar
Burgarella, D., Buat, V., Gruppioni, C., et al. 2013, A&A, 554, A70Google Scholar
Gould, R. J. & Salpeter, E. E. 1963, ApJ, 138, 393CrossRefGoogle Scholar
Guiderdoni, B., Hivon, E., Bouchet, F. R., & Maffei, B. 1998, MNRAS, 295, 877CrossRefGoogle Scholar
Kennicutt, R. C. & Evans, N. J. 2012, ARA&A, 50, 531CrossRefGoogle Scholar
Laporte, N., Ellis, R. S., Boone, F., et al. 2017, ApJ, 837, L2110.3847/2041-8213/aa62aaCrossRefGoogle Scholar
Nozawa, T., Kozasa, T., & Habe, A. 2006, ApJ, 648, 435CrossRefGoogle Scholar
Nozawa, T., Kozasa, T., Habe, A., et al. 2007, ApJ, 666, 955CrossRefGoogle Scholar
Nozawa, T., Asano, R. S., Hirashita, H., & Takeuchi, T. T. 2015, MNRAS, 447, L16CrossRefGoogle Scholar
Rémy-Ruyer, A., Madden, S. C., Galliano, F., et al. 2014, A&A, 563, A31Google Scholar
Takeuchi, T. T., Buat, V., & Burgarella, D. 2005, A&A, 440, L17Google Scholar
Watson, D., Christensen, L., Knudsen, K. K., et al. 2015, Nature, 519, 327CrossRefGoogle Scholar