Results 61 to 70 of about 257,486 (317)

Variability of Gravity Wave Effects on the Zonal Mean Circulation and Migrating Terdiurnal Tide as Studied With the Middle and Upper Atmosphere Model (MUAM2019) Using a Nonlinear Gravity Wave Scheme

Frontiers in Astronomy and Space Sciences, 2020
Implementing a nonlinear gravity wave (GW) parameterization into a mechanistic middle and upper atmosphere model, which extends to the lower thermosphere (160 km), we study the response of the atmosphere in terms of the circulation patterns, temperature ...
Friederike Lilienthal, Erdal Yiğit, Nadja Samtleben, Christoph Jacobi   +3 more
doaj   +1 more source

Development of multiple tidal tails around globular clusters and dwarf satellite galaxies

, 2014
The formation and evolution of tidal tails like those observed around some globular clusters and dwarf satellite galaxies is examined with an N-body simulation.
Burkert, Andreas, Hozumi, Shunsuke
core   +1 more source

Jeans Instability in a Tidally Disrupted Halo Satellite Galaxy [PDF]

, 2010
We use a hybrid test particle/N-body simulation to integrate 4 million massless test particle trajectories within a fully self-consistent 10^5 particle N-body simulation. The number of massless particles allows us to resolve fine structure in the spatial
Alice C. Quillen, Asphaug, Barnes, Bekki, Binney, Bullock, Carlberg, Dehnen, Fridman, Gaburov, Gnedin, Gomez, Harfst, Helmi, Helmi, Helmi, Helmi, Ibata, Ibata, Johnston, Johnston, Johnston, Johnston, Justin Comparetta, Kaib, Kuijken, Kupper, Kupper, Makino, Makino, Masaki, Mayer, Meza, Minchev, Odenkirchen, Penarrubia, Penarrubia, Purcell, Quillen, Shu, Siegal-Gaskins, Villalobos, Wetzstein, Widrow, Widrow, Yanny   +45 more
core   +1 more source

First deep search of tidal tails in the Milky Way globular cluster NGC 6362 [PDF]

Astronomy & Astrophysics
I present results of the analysis of a set of images obtained in the field of the Milky Way globular cluster NGC 6362 using the Dark Energy Camera, which is mounted in the 4.0m Victor Blanco telescope of the Cerro-Tololo Interamerican Observatory.
A. Piatti
semanticscholar   +1 more source

Tidal tails of open star clusters as probes of early gas expulsion [PDF]

Astronomy & Astrophysics, 2020
Context. Star clusters form in the densest parts of infrared dark clouds. The emergence of massive stars expels the residual gas that has not formed stars yet.
F. Dinnbier, P. Kroupa
semanticscholar   +1 more source

From Globular Clusters to Tidal Dwarfs: Structure Formation in the Tidal Tails of Merging Galaxies

, 2003
Using V and I images obtained with WFPC2/HST, we investigate compact stellar structures within tidal tails. Six regions of tidal debris in the four classic ``Toomre Sequence'' mergers: NGC 4038/39 (``Antennae''), NGC 3256, NGC 3921, and NGC 7252 (``Atoms
Aalto S., Amram P., Arunav Kundu, Bradley Whitmore, Casoli F., Dennis Zaritsky, Duc P.-A., Duc P.-A., Fritze, J. E. Hibbard, Jane C. Charlton, Karen A. Knierman, Larsen S. S., Mirabel I. F., Mirabel I. F., Sally D. Hunsberger, Sarah C. Gallagher, van der Hulst J. M., Weilbacher P. M.   +18 more
core   +1 more source

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

The Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić, Olivia J. Holmes, Brenna N. Wells, Jimmy A. Irwin   +3 more
doaj   +1 more source

The eye of Gaia on globular clusters structure: tidal tails [PDF]

, 2020
I analyse the projected density distribution of member stars over a wide area surrounding 18 Galactic globular clusters using the photometric and astrometric information provided by the second data release of the Gaia mission.
A. Sollima
semanticscholar   +1 more source

Discovery of Extended Tidal Tails around the Globular Cluster Palomar 13 [PDF]

Astronomical Journal, 2020
We use photometry from the DECam Legacy Survey to detect candidate tidal tails extending ∼5° on either side of the Palomar 13 globular cluster. The tails are aligned with the proper motion of Palomar 13 and are consistent with its old, metal-poor stellar
N. Shipp, A. Price-Whelan, K. Tavangar, C. Mateu, A. Drlica-Wagner   +4 more
semanticscholar   +1 more source

Tidal Tails of the Nearest Open Clusters [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractWe show that an extended population of stars escaping an evolved cluster and moving along its galactic orbit forms at the final phases of its dynamical evolution. Here we present some results of the numerical simulations for nearest open clusters: Hyades, Pleiades, Praesepe, Alpha Persei, Coma, IC 2391, and IC 2602.
Yaroslav Chumak, Alexey Rastorguev
openaire   +1 more source