2013 Fiscal Year Final Research Report
Study on physics of supernovae
| Project/Area Number |
23740175
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
FOLATELLI Gaston 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (80600527)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 宇宙物理学 / 宇宙論 / 超新星 / 分光学 |
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| Research Abstract |
We have used intensive observations of supernovae (SNe), coupled with modelling capabilities provided by collaborators to study the physical nature of these events. The power of our observations resided in the availability of early-time spectroscopic data, obtained at short intervals, and covering a wide wavelength range. This wealth of information allowed us perform studies on different types of SNe. One highlight of the results is the detection of material that is left unburned by the explosion of thermonuclear SNe, which we found to be much more common than previously thought. On core-collapse SNe, we were able to distinguish a special class of hydrogen-poor SNe that show peculiarly low expansion velocities, a feature that is challenging for current explosion models.
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[Journal Article] Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Project2013
Author(s)
Folatelli, G., Morrell, N., Phillips, M. M., Hsiao, E., Campillay, A., 省略25名
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Journal Title
The Astrophysical Journal
Volume: 773
Pages: 53
Peer Reviewed
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[Journal Article] The Type IIb Supernova 2011dh from a Supergiant Progenitor2012
Author(s)
Bersten, M. C., Benvenuto, O. G., Nomoto, K., Ergon, M., Folatelli, G., 省略8名
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Journal Title
The Astrophysical Journal
Volume: 757
Pages: 31
Peer Reviewed
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[Journal Article] A Precision Photometric Comparison between SDSS-II and CSP Type Ia Supernova Data2012
Author(s)
Mosher, J., Sako, M., Corlies, L., Folatelli, G., Frieman, J., 省略8名
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Journal Title
The Astronomical Journal
Volume: 144
Pages: 17
Peer Reviewed
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[Journal Article] The Standardizability of Type Ia Supernovae in the Near-Infrared : Evidence for a Peak-Luminosity Versus Decline-Rate Relation in the Near-Infrared2012
Author(s)
Kattner, S., Leonard, D. C., Burns, C. R., Phillips, M. M., Folatelli, G., 省略7名
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Journal Title
Publications of the Astronomical Society of the Pacific
Volume: 124
Pages: 114-127
Peer Reviewed
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[Journal Article] Unburned Material in the Ejecta of Type Ia Supernovae2012
Author(s)
Folatelli, G., Phillips, M. M., Morrell, N., Tanaka, M., Maeda, K., 省略15名
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Journal Title
The Astrophysical Journal
Volume: 745
Pages: 74
Peer Reviewed
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