Concept
Orbital speed
Related publications (43)
Shedding light on the MRI-driven dynamo in a stratified shearing box
We study the magneto-rotational instability (MRI) dynamo in a geometrically thin disc (H/R < 1) using stratified zero net (vertical) flux shearing box simulations. We find that mean fields and electromotive forces (EMFs) oscillate with a primary frequency ...
2024Super-harmonically resonant swirling waves in longitudinally forced circular cylinders
François Gallaire, Alessandro Bongarzone, Alice Evelyne Julienne Marcotte
Resonant sloshing in circular cylinders was studied by Faltinsen et al. (J. Fluid Mech., vol. 804, 2016, pp. 608-645), whose theory was used to describe steady-state resonant waves due to a time-harmonic container's elliptic orbits. In the limit of longitu ...
CAMBRIDGE UNIV PRESS2023HD 213258: A new rapidly oscillating, super slowly rotating, strongly magnetic Ap star in a spectroscopic binary
We report on HD 213258, an Ap star that we recently identified as presenting a unique combination of rare, remarkable properties. Our study of this star is based on ESPaDOnS Stokes I and V data obtained at seven epochs spanning a time interval slightly sho ...
EDP SCIENCES S A2023Gaia Focused Product Release: Radial velocity time series of long-period variables
Stephan Morgenthaler, Shuangqing Liao
Context. The third Gaia Data Release (DR3) provided photometric time series of more than 2 million long-period variable (LPV) candidates. Anticipating the publication of full radial-velocity data planned with Data Release 4, this Focused Product Release (F ...
Les Ulis Cedex A2023Discovery of a Binary-origin Classical Cepheid in a Binary System with a 59 day Orbital Period
We report the discovery of a surprising binary configuration of the double-mode Cepheid OGLE-LMC-CEP-1347 pulsating in the first (P-1= 0.690 days) and second-overtone (P-2= 0.556 days) modes. The orbital period (P-orb= 59 days) of the system is five times ...
Bristol2022The Pristine dwarf galaxy survey - IV. Probing the outskirts of the dwarf galaxy Bootes I
Pascale Jablonka, Nicolas Lawrence Etienne Longeard, Romain Ely Roland Lucchesi
We present a new spectroscopic study of the dwarf galaxy Bootes I (Boo I) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system. We observed 36 high-probability Boo I stars selecte ...
OXFORD UNIV PRESS2022