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2015-05

Star Forming Molecular Gas in Early Stage Mergers / Accelerated galaxy growth toward the peak epoch revealed by [OIII] emission line galaxies at z > 3

[Speaker 1]
MICHIYAMA Tomonari , M2, SOKENDAI, Mitaka(supervisor: Iono Daisuke)
[Title]
Star Forming Molecular Gas in Early Stage Mergers
[Abstract]
While the simulations have predicted a number of intriguing aspects of the gas response during the early stages of a galaxy collision, only a handful of observational tests exist in literature so far. We performed observation of early stages galaxies with Nobeyama45m CO(1-0) and ASTE10m CO(3-2). An extensive survey of molecular gas along the complete merger sequence will finally allow us a detailed comparison with the predictions from numerical simulations.

[Speaker 2]
Tomoko Suzuki , D2, SOKENDAI, Mitaka(supervisor: Tadayuki Kodama)
[Title]
Accelerated galaxy growth toward the peak epoch revealed by [OIII] emission line galaxies at z > 3

Rapid dust production in Hα-8μm-selected galaxies at z=2 / Addressing the Evolution of Super-massive Blackholes with Hyper Suprime-Cam Survey

[Speaker 1]
Rhythm Shimakawa , D2, SOKENDAI, Mitaka(supervisor: Tadayuki Kodama)
[Title]
Rapid dust production in Hα-8μm-selected galaxies at z=2
[Abstract]
I present results on the dust obscuration of star-burst galaxies at z=2 selected by MIPS/Spitzer and MOIRCS/Subaru, towards on-going programs with ALMA. Thanks to our past narrow-band imaging survey (Mahalo-Subaru), we have a large sample of Hα-selected star-forming galaxies. By combining them with MIPS 24um data, we probed ~50 dusty galaxies with IR luminosities above 5E11 Lsun. Since those also have spatially-resolved rest-UV image taken by Hubble Space Telescope, we can study morphological dependence of dust properties (IRX=IR/UV). Our preliminary results show that for a given UV slope, “UV-saturated” galaxies have more heavily-obscured UV structures, which directly indicates that dust covering fraction increase rapidly than intrinsic UV luminosity as suggested by Reddy et al. 2010. Moreover, such highly-obscured galaxies tend to have high equivalent widths of Hα emission, which is also good agreement with dust properties of massive galaxies at low redshift (Koyama et al. 2015).

[Speaker 2]
Masafusa Onoue, D1, SOKENDAI, Mitaka(supervisor: Nobunari Kashikawa)
[Title]
Addressing the Evolution of Super-massive Blackholes with Hyper Suprime-Cam Survey

Chemical Network Simulations for Glycine Precursors / Observational study of the evolution of M BH / M spheroid ratios probed by z~3.3 QSOs

[Speaker 1]
Taiki Suzuki, D2, SOKENDAI, Mitaka(supervisor: Ohishi Maharishi)
[Title]
Chemical Network Simulations for Glycine Precursors

[Speaker 2]
Yuriko SAITO, D3, SOKENDAI, Mitaka(supervisor: Masatoshi Imanishi)
[Title]
Observational study of the evolution of M BH / M spheroid ratios probed by z~3.3 QSOs

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