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129 papers · 1 filter
Star Formation and AGN activity in Galaxies classified using the 1.6 μm Bump and PAH features at
Hitoshi Hanami, Tsuyoshi Ishigaki, Naofumi Fujishiro +17
We have studied the star-formation and AGN activity of massive galaxies in the redshift range , which are detected in a deep survey field using the AKARI InfraRed (IR) ast…
Tanpopo cosmic dust collector: Silica aerogel production and bacterial DNA contamination analysis
Makoto Tabata, Yuko Kawaguchi, Shin-ichi Yokobori +4
Hydrophobic silica aerogels with ultra-low densities have been designed and developed as cosmic dust capture media for the Tanpopo mission which is proposed to be carried out on th…
Planetesimal Formation at the Boundary Between Steady Super/Sub-Keplerian Flow Created by Inhomogeneous Growth of Magnetorotational Instability
Mariko T. Kato, Masaki Fujimoto, Shigeru Ida
We have studied formation of planetesimals at a radial pressure bump in a protoplanetary disk created by radially inhomogeneous magnetorotational instability (MRI), through three-d…
The Cosmic Infrared Background Experiment (CIBER): The Low Resolution Spectrometer
K. Tsumura, T. Arai, J. Battle +20
Absolute spectrophotometric measurements of diffuse radiation at 1 μm to 2 μm are crucial to our understanding of the radiative content of the Universe from nucleosynthesis since t…
Development of transparent silica aerogel over a wide range of densities
Makoto Tabata, Ichiro Adachi, Yoshikazu Ishii +3
We have succeeded in developing hydrophobic silica aerogels over a wide range of densities (i.e. refractive indices). A pinhole drying method was invented to make possible producin…
Suzaku X-ray Follow-up Observations of Seven Unassociated Fermi-LAT Gamma-ray Sources at High Galactic Latitudes
Yosuke Takahashi, Jun Kataoka, Takeshi Nakamori +8
We report on our second-year campaign of X-ray follow-up observations of unidentified Fermi-LAT γ-ray sources at high Galactic latitudes (|b|>10 degree) using the X-ray Imaging Spe…