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Mid- and Far-Infrared Photometry of Galactic Planetary Nebulae with the AKARI All-Sky Survey
Phillips, J. P.; Márquez-Lugo, R. A.
We provide mid- and far-infrared photometry of 857 Galactic planetary nebulae (PNe) using data derived from the AKARI All-Sky Survey. These include fluxes at 9 and 18 µm obtained with the Infrared Camera (IRC), and at 65, 90, 140 and 160 µm using the far-Infrared Surveyor (FIS). It is noted that the IR luminosities of the youngest PNe …
Variable jets with non-top hat ejection cross sections: a model for the knots of the HH 34 jet
Raga, A. C.; Noriega-Crespo, A.; Esquivel, A. +3 more
We compute axisymmetric, single-sinusoidal mode variable ejection models with a non-top hat ejection velocity cross section. We find that for decreasing edge-to-center velocity ratios one obtains internal working surfaces with progressively more extended bow shock wings. These wings produce [S II] emission which partially fills in the inter-knot r…
The Kinematics and Velocity Ellipsoid of the G III Stars
Branham, R. L., Jr.
To study the kinematics of the G giant stars (luminosity class III) use is made of proper motions and parallaxes taken from van Leeuwen's new reduction of the Hipparcos catalog. 3,075 stars, of which 658 have radial velocities, were used in the final study. The solution gives: solar velocity of 16.72±0.41 km s-1; Oort's constant's, in u…