023

Twenty-Ðve low-redshift quasars have been monitored for several decades at Ðve nearand midinfrared wavelengths to detect rapid variations that would indicate that a nonthermal component was present in the ““ 10 km bump.ÏÏ Such variability has apparently been detected in several radio-loud quasars and in the radio-quiet quasar PG 1535]547. In addition, the structure function of PG 1226]023 shows...

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Constraints on the Formation of Gullies on Mars: a Possibility of the Formation of Gullies by Avalanches of Granular Co2 Ice Particles

2006

T. Ishii H. Miyamoto S. Sasaki E. Tajika

FORMATION OF GULLIES BY AVALANCHES OF GRANULAR CO2 ICE PARTICLES. T. Ishii, H. Miyamoto, S. Sasaki and E. Tajika, Department of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, ([email protected]), Department of Geosystem Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, National Astronomical Observa...

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