Publications (7)
Thermoluminescence of Simulated Interstellar Matter after Gamma-ray Irradiation
K. Koike, M. Nakagawa, C. Koike +2
Interstellar matter is known to be strongly irradiated by radiation and several types of cosmic ray particles. Simulated interstellar matter, such as forsterite …
PAHs and crystalline silicates in the post-AGB star IRAS 16279-4757
M. Matsuura, A. A. Zijlstra, F. J. Molster +7
IRAS 16279-4757 belongs to a group of post-AGB stars showing both PAH bands and crystalline silicates. We present mid-infrared images, that resolve the object for the first time. T…
Mid-infrared spectra of the shocked Murchison CM chondrite: Comparison with astronomical observations of dust in debris disks
A. Morlok, C. Koike, N. Tomioka +2
We present laboratory mid-infrared transmission/absorption spectra obtained from matrix of the hydrated Murchison CM meteorite experimentally shocked at peak pressures of 10 to 49…
Photo-Luminescence and Possible Forsterite nanoparticles Model of Extended Red Emission
K. Koike, H. Chihara, C. Koike +4
Possible forsterite nanoparticle model of the Extended Red Emission(ERE) is proposed on the basis of photo-luminescence of forsterite after gamma-ray and neutron irradiation. Forst…
Crystalline silicate dust around evolved stars III. A correlations study of crystalline silicate features
F. J. Molster, L. B. F. M. Waters, A. G. G. M. Tielens +2
We have carried out a quantitative trend analysis of the crystalline silicates observed in the ISO spectra of a sample of 14 stars with different evolutionary backgrounds. We have…
Mid-infrared spectra of differentiated meteorites (achondrites): Comparison with astronomical observations of dust in protoplanetary and debris disks
A. Morlok, C. Koike, K. Tomeoka +4
Mid-infrared (5 micron to 25 micron) transmission/absorption spectra of differentiated meteorites (achondrites) were measured to permit comparison with astronomical observations of…