2009 Fiscal Year Final Research Report
An investigation of buried, actively-mass-accreting supermassive blackholes through multi-wavelengths observations
| Project/Area Number |
19740109
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
IMANISHI Masatoshi National Astronomical Observatory of Japan, 光赤外研究部, 助教 (00311176)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 赤外線観測 / (サブ)ミリ波観測 / 赤外線銀河 / 超巨大ブラックホール / あかり赤外線天文衛星 / スピッツアー赤外線天文衛星 / 野辺山ミリ波干渉計 / ASTEサブミリ望遠鏡 |
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| Research Abstract |
We have performed systematic multi-wavelengths searches for elusive buried mass-accreting supermassive blackholes (=active galactic nuclei ; AGNs) in luminous infrared galaxies, using AKARI, Spitzer, Nobeyama Millimeter Array, and ASTE sub-millimeter telescope. We quantitatively estimated the energetic importance of buried AGNs and found that buried AGNs become more important energetically with increasing galaxy infrared luminosity, observationally suggesting that the AGN-starburst connections are luminosity dependent.
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[Journal Article] Detections of Water Ice, Hydrocarbons, and 3. 3μm PAH in z ~ 2 ULIRGs2009
Author(s)
Sajina, A., Spoon, H., Yan, L., Imanishi, M., Fadda, D., Elitzur, M.
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Journal Title
Peer Reviewed
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[Journal Article] Systematic Infrared 2. 5-5μm Spectroscopy of Nearby Ultraluminous Infrared Galaxies with AKARI2008
Author(s)
Imanishi, M., Nakagawa, T., Ohyama, Y., Shirahata, M., Wada, T., Onaka, T., Oi, N.
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Journal Title
Peer Reviewed
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[Journal Article] Spectral decomposition of starbursts and active galactic nuclei in 5-8μm Spitzer-IRS spectra of local ultraluminous infrared galaxies2008
Author(s)
Nardini, E., Risaliti, G., Salvati, M., Sani, E., Imanishi, M., Marconi, A., Maiolino, R.
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Journal Title
MNRAS 385
Pages: L130-L134
Peer Reviewed
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[Journal Article] A Spitzer IRS Low-Resolution Spectroscopic Search for Buried AGNs in Nearby Ultraluminous Infrared Galaxies: A Constraint on Geometry between Energy Sources and Dust2007
Author(s)
Imanishi, M., Dudley, C.C., Maiolino, R., Maloney, P.R., Nakagawa, T., Risaliti, G.
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Journal Title
Peer Reviewed
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[Journal Article] Dust covering factor, silicate emission, and star formation in luminous QSOs2007
Author(s)
Maiolino, R., Shemmer, O., Imanishi, M., Netzer, H., Oliva, E., Lutz, D., Sturm, E.
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Journal Title
Peer Reviewed
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[Journal Article] The Mid-Infrared Emission of M872007
Author(s)
Perlman, E.S., Mason, R.E., Packham, C., Levenson, N.A., Elitzur, M., Schaefer, J.T., Imanishi, M., Sparks, W.B., Radomski, J.
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Journal Title
Peer Reviewed
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