Results 21 to 30 of about 305,280 (307)

Asteroseismic measurement of surface-to-core rotation in a main-sequence A star, KIC 11145123 [PDF]

open access: yes, 2014
We have discovered rotationally split core g-mode triplets and surface p-mode triplets and quintuplets in a terminal age main-sequence A star, KIC 11145123, that shows both δ Sct p-mode pulsations and γ Dor g-mode pulsations.
Hideyuki Saio   +17 more
core   +1 more source

Constraining the Rotation Profile in a Low-Luminosity Subgiant with a Surface Rotation Measurement [PDF]

open access: yes, 2023
Rotationally-induced mode splitting frequencies of low-luminosity subgiants suggest that angular momentum transport mechanisms are 1-2 orders of magnitude more efficient in these stars than predicted by theory.
Guy Davies   +19 more
core   +2 more sources

Stellar magnetism : empirical trends with age and rotation [PDF]

open access: yes, 2014
AAV acknowledges support from a Royal Astronomical Society Fellowship and from the Swiss National Science Foundation via an Ambizione Fellowship. SGG acknowledges support from the Science and Technology Facilities Council (STFC) via an Ernest Rutherford ...
G. Hussain   +45 more
core   +1 more source

Isosynchronous Paths on a Rotating Surface [PDF]

open access: yesThe American Mathematical Monthly, 2015
18 pages, 6 ...
openaire   +2 more sources

Feature Based Particle Filter Registration of 3D Surface Models and its Application in Robotics [PDF]

open access: yes, 2013
This work is focused on global registration of surface models such as homogeneous triangle meshes and point clouds. The investigated approach utilizes feature descriptors in order to assign correspondences between the data sets and to reduce complexity ...
Michael Suppa   +9 more
core   +1 more source

Asteroseismic measurement of slow, nearly uniform surface-to-core rotation in the main-sequence F star KIC 9244992 [PDF]

open access: yes, 2015
We have found a rotationally split series of core g-mode triplets and surface p-mode multiplets in a main-sequence F star, KIC 9244992. Comparison with models shows that the star has a mass of about 1.45 M , and is at an advanced stage of main-sequence ...
Shibahashi, Hiromoto   +13 more
core   +1 more source

Surface Differential Rotation of Evolved Fast Rotators [PDF]

open access: yesSymposium - International Astronomical Union, 2004
Zeeman-Doppler Imaging enables one to estimate the short term temporal evolution of surface brightness and magnetic structures, under the effect of differential rotation. We present here spectropolarimetric observations secured between 1998 and 2002 for two evolved active stars: the K1 subgiant of the RS CVn system HR 1099 and the single FK Com giant ...
P. Petit   +13 more
openaire   +1 more source

Improved asteroseismic inversions for red-giant surface rotation rates [PDF]

open access: yes, 2022
Asteroseismic observations of internal stellar rotation have indicated a substantial lack of angular momentum transport in theoretical models of subgiant and red-giant stars.
S. Basu   +10 more
core   +2 more sources

Stability of Surface Motion on a Rotating Ellipsoid [PDF]

open access: yesCelestial Mechanics and Dynamical Astronomy, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guibout, Vincent, Scheeres, Daniel J.
openaire   +2 more sources

Home - About - Disclaimer - Privacy