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Sublimation temperature of circumstellar dust particles and its importance for dust ring formation
Kimura, Hiroshi; Müller, Sebastian; Kobayashi, Hiroshi +2 more
Dust particles in orbit around a star drift toward the central star by the Poynting-Robertson effect and pile up by sublimation. We analytically derive the pile-up magnitude, adopting a simple model for optical cross sections. As a result, we find that the sublimation temperature of drifting dust particles plays the most important role in the pile…
A powerful tool for browsing quick-look data in solar-terrestrial physics: "Conjunction Event Finder"
Shinohara, Iku; Hasegawa, Hiroshi; Fujimoto, Masaki +4 more
The "Conjunction Event Finder (CEF)" is a Web tool for seamlessly browsing quick-look (QL) data from many different kinds of satellites and ground-based instruments in solar-terrestrial physics. The QL plots are generally scattered all over the world, so that browsing many of them is so far very troublesome and inefficient. Just a simple procedure…
AKARI All Sky Survey: contribution from AGB stars to the far infrared flux from the Milky Way related to point sources outside the Galactic plane
Pollo, Agnieszka; Takeuchi, Tsutomu Tsutomu; Rybka, Piotr
Using data from the FIS AKARI All-Sky Survey, we make a first step towards the estimation of the contribution from Asymptotic Giant Branch (AGB) stars to the far-infrared (FIR) flux from the Milky Way. We estimate the contribution from the AGB, and post-AGB, stars to the total flux generated by point sources outside the Galactic plane. Additionall…