Results 1 to 10 of about 112,637 (293)

Gravitational Lensing & Stellar Dynamics [PDF]

, 2006
Strong gravitational lensing and stellar dynamics provide two complementary and orthogonal constraints on the density profiles of galaxies. Based on spherically symmetric, scale-free, mass models, it is shown that the combination of both techniques is ...
L.V.E. Koopmans, L.V.E. Koopmans
openalex   +4 more sources

Internal rotation of red giants by asteroseismology [PDF]

EPJ Web of Conferences, 2013
We present an asteroseismic approach to study the dynamics of the stellar interior in red giant stars by asteroseismic inversion of the splittings induced by the stellar rotation on the oscillation frequencies.
Christensen-Dalsgaard J., Mosser B., Hekker S., García R.A., Elsworth Y., Davies G., Beck P.G., Stello D., Ventura R., Di Mauro M.P., Cardini D., Bloemen S., Catanzaro G., De Smedt K., Tkachenko A.   +14 more
doaj   +3 more sources

Grigori Kuzmin and Stellar Dynamics

Open Astronomy, 2011
Grigori Kuzmin was a very gifted dynamicist and one of the towering figures in the distinguished history of the Tartu Observatory. He obtained a number of important results in relative isolation which were later rediscovered in the West.
Zeeuw P. Tim de, Ven Glenn van de
doaj   +3 more sources

Probing Stellar Dynamics in Galactic Nuclei [PDF]

, 2009
Electromagnetic observations over the last 15 years have yielded a growing appreciation for the importance of supermassive black holes (SMBH) to the evolution of galaxies, and for the intricacies of dynamical interactions in our own Galactic center. Here
M. Coleman Miller, Tal Alexander, Pau Amaro‐Seoane, Aaron J. Barth, Curt Cutler, Jonathan Gair, Clovis Hopman, David Merritt, E. S. Phinney, D. O. Richstone   +9 more
openalex   +3 more sources

Binary populations and stellar dynamics in young clusters

, 2008
We first summarize work that has been done on the effects of binaries on theoretical population synthesis of stars and stellar phenomena. Next, we highlight the influence of stellar dynamics in young clusters by discussing a few candidate UFOs ...
D. Vanbeveren, Houria Belkus, Joris Van Bever, N. Mennekens   +3 more
openalex   +3 more sources

Stellar dynamics and black holes [PDF]

, 2011
Chandrasekhar's most important contribution to stellar dynamics was the concept of dynamical friction. I briefly review that work, then discuss some implications of Chandrasekhar's theory of gravitational encounters for motion in galactic nuclei.Comment:
David Merritt, David Merritt
openalex   +3 more sources

Perspectives on the physics of late-type stars from beyond low earth orbit, the moon and mars [PDF]

npj Microgravity
With the new discoveries enabled thanks to the recent space missions, stellar physics is going through a revolution. However, these discoveries opened the door to many new questions that require more observations.
Savita Mathur, Ângela R. G. Santos
doaj   +2 more sources

Stellar dynamics around transient co-rotating spiral arms

EPJ Web of Conferences, 2012
Spiral density wave theory attempts to describe the spiral pattern in spiral galaxies in terms of a long-lived wave structure with a constant pattern speed in order to avoid the winding dilemma.
Cropper M., Grand R.J.J., Kawata D.
doaj   +3 more sources

On the orbital periods for a particular case of spherical symmetry [PDF]

Serbian Astronomical Journal, 2008
A particular case of steady state and spherical symmetry - the so-called logarithmic potential introduced as the first approximation for dark coronae of galaxies - is studied.
Ninković S., Jovanović B.
doaj   +3 more sources

Compact Binary Coalescences: Astrophysical Processes and Lessons Learned

Galaxies, 2022
On 11 February 2016, the LIGO and Virgo scientific collaborations announced the first direct detection of gravitational waves, a signal caught by the LIGO interferometers on 14 September 2015, and produced by the coalescence of two stellar-mass black ...
Mario Spera, Alessandro Alberto Trani, Mattia Mencagli   +2 more
doaj   +1 more source