PJ McMillan

Signatures of simulated spiral arms on radial actions

P. A. Palicio, Alejandra Recio-Blanco, Thor Tepper-García, E. Poggio et autres

Context. Spiral arms play a key role in the evolution of disc galaxies, defining their morphology, star formation, chemistry, and dynamics. Among their various implications, it has been observed in the Milky Way disc that the distribution of Gaia Data Release 3 …

fr, au, it, jp, gb (code pays fourni par la source)

The American Astronomical Society, find out more The Institute of Physics, find out moreThe Sixth Data Release of the Radial Velocity Experiment (Rave). II. Stellar Atmospheric Parameters, Chemical Abundances, and Distances

Matthias Steinmetz, G. Guiglion, PJ McMillan, G. Matijevič et autres

We present part 2 of the 6th and final Data Release (DR6 or FDR) of the Radial Velocity Experiment (RAVE), a magnitude-limited (9<I<12) spectroscopic survey of Galactic stars randomly selected in the southern hemisphere. The RAVE medium-resolution spectra (R~7500) cover the Ca-triplet …

Gaia Data Release 2. Observations of solar system objects

F. Spoto, P. Tanga, F. Mignard, J. Berthier et autres

CONTEXT: The Gaia spacecraft of the European Space Agency (ESA) has been securing observations of solar system objects (SSOs) \nsince the beginning of its operations. Data Release 2 (DR2) contains the observations of a selected sample of 14,099 SSOs. These \nasteroids have …

Age verification, growth and life history of rubyfish Plagiogeneion rubiginosum

Péter Horn, H. L. Neil, L. J. Paul, PJ McMillan

Abstract Age verification of rubyfish ( Plagiogeneion rubiginosum ) was sought using the bomb radiocarbon chronometer procedure. Stable isotopes were investigated for life history characteristics. Radiocarbon ( 14 C) and stable isotope (δ 18 O and δ 13 C) levels were measured …

nz (code pays fourni par la source)

The effects of ovariectomy and estrogen replacement on trkA and choline acetyltransferase mRNA expression in the basal forebrain of the adult female Sprague-Dawley rat

PJ McMillan, CA Singer, DM Dorsa

Cognitive deficits associated with aging and with neurodegenerative diseases such as Alzheimer's disease have been attributed to degeneration of cholinergic neurons in the basal forebrain. Estrogen is known to provide trophic support to cholinergic neurons, although the mechanisms underlying the actions of …

us (code pays fourni par la source)