Understanding the formation and destruction processes of dust grains by massive stars and supernovae
| Project/Area Number |
22684004
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NOZAWA Takaya 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (90435975)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | ダスト（星間塵） / 超新星爆発 / 大質量星 / 超新星残骸 / 可視光赤外線観測 / 物質進化 / 減光曲線 / 化学進化 / 質量放出 / 星間衝撃波 / ダスト(星間塵) / 可視赤外線観測 |
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| Research Abstract |
We investigated the formation of dust in the ejecta of supernovae and the destruction of dust in the supernova remnants. Comparing the results of the calculations to the observations, we revealed the composition, size, and amount of dust grains ejected from the supernovae. In particular, we showed that Type II supernovae can produce a sub-solar mass of dust in the ejecta, while Type Ia supernovae are not likely to be the major sources of interstellar dust. In addition, we formulated the non-steady-state formation process of dust in astrophysical environments, and examined the formation condition of dust grains and their average radius in mass-loss winds of very massive stars. We also constructed the evolution model of grain size distribution and predicted the time developement of interstellar extinction curves in galaxies.
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Report
(5 results)
Research Products
(58 results)
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[Journal Article] Properties of Newly Formed Dust Grains in the Luminous Type IIn Supernova 2010jl2013
Author(s)
K. Maeda, T. Nozawa, D. K. Sahu, Y. Minowa, K. Motohara, I. Ueno, G. Folatelli, T. -S. Pyo, Y. Kitagawa, K. S. Kawabata, G. C. Anupama, T. Kozasa, T. J. Moriya, M. Yamanaka, K. Nomoto, M. Bersten, R. Quimby, M. Iye
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Journal Title
The Astrophysical Journal
Volume: 776
Issue: 1
Pages: 5-5
DOI
Related Report
Peer Reviewed
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[Journal Article] SN 2009js at the Crossroads between Normal and Subluminous Type II P Supernovae : Optical and Mid-infrared Evolution2013
Author(s)
P. Gandhi, M. Yamanaka, M. Tanaka, T. Nozawa, K. S. Kawabata, I. Saviane, K. Maeda, T. J. Moriya, T. Hattori, M. Sasada, R. Itoh
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Journal Title
The Astrophysical Journal
Volume: 767
Issue: 2
Pages: 166-166
DOI
Related Report
Peer Reviewed
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[Presentation] Dust in the Ejecta of Supernovae2013
Author(s)
Takaya Nozawa
Organizer
Frascati Workshop 2013: Multifrequency Behavior of High Energy Cosmic Sources
Place of Presentation
Splendid Hotel La Torre, Mondello, Palermo, Italy
Related Report
Invited
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