844 citations · 1.2k across the 9 of their papers we have counts for
9 papers
Non-isothermal vertical distribution functions for the Milky Way
Maria Djurić, Ralph Schönrich
The vertical structure of our Galaxy has commonly been assumed to follow a pseudo-isothermal distribution. However, there is no \textit{a priori} reason to expect this form to aris…
The small boxy/peanut structure of the Milky Way traced by old stars
Marcin Semczuk, Walter Dehnen, Ralph Schoenrich +1
We analyse the positions of RR Lyrae stars in the central region of the Milky Way. In addition to the overall bar shape detected previously, we find evidence for a peanut shaped st…
Radial Migration in Galactic Thick Discs
Michael Solway, J. A. Sellwood, Ralph Schoenrich
We present a study of the extent to which the Sellwood & Binney radial migration of stars is affected by their vertical motion about the midplane. We use both controlled simulation…
What Velocities and Eccentricities tell us about Radial Migration
Ralph Schoenrich
This note attempts to interpret some of the recent findings about a downtrend in the mean azimuthal velocity of low [alpha/Fe] thin disc stars with increasing metallicity. The pres…
The detection and treatment of distance errors in kinematic analyses of stars
Ralph Schoenrich, James Binney, Martin Asplund
We present a new method for detecting and correcting systematic errors in the distances to stars when both proper motions and line-of-sight velocities are available. The method, wh…
A new formula for disc kinematics
Ralph Schoenrich, James Binney
In a disc galaxy the distribution of azimuthal components of velocity is very skew. In the past this skewness has been modelled by superposed Gaussians. We use dynamical arguments…
New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
Luca Casagrande, Ralph Schoenrich, Martin Asplund +5
We present a re-analysis of the Geneva-Copenhagen survey, which benefits from the infrared flux method to improve the accuracy of the derived stellar effective temperatures and use…
On the alleged duality of the Galactic halo
Ralph Schoenrich, Martin Asplund, Luca Casagrande
We examine the kinematics of the Galactic halo based on SDSS/SEGUE data by Carollo et al. (2007, 2010). We find that their claims of a counter-rotating halo are the result of subst…
The SSS phase of RS Ophiuchi observed with Chandra and XMM-Newton I.: Data and preliminary Modeling
J. -U. Ness, S. Starrfield, A. P. Beardmore +13
The phase of Super-Soft-Source (SSS) emission of the sixth recorded outburst of the recurrent nova RS Oph was observed twice with Chandra and once with XMM-Newton. The observations…