Results 61 to 70 of about 874 (181)

Kinematics of early-type galaxies in compact groups

, 1999
We present measurements of stellar kinematics for seven early-type galaxies in HCG 67, HCG 74, and HCG 79. These data are aimed at studying the relation between the environment and the dynamics, structure and stellar content of early-type galaxies.
P. Bonfanti, R. Rampazzo, F. Simien, Ph. Prugniel   +3 more
core   +1 more source

Gravity Wave Variability in the Arctic Winter Mesosphere in Relation With the Stratospheric Polar Vortex

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 16, 28 August 2025.
Abstract In this study, we have investigated short‐period (< ${< } $1 hr) atmospheric gravity waves (AGWs) in the Arctic mesosphere‐lower thermosphere (MLT) region during January of 2014, 2015, and 2016. We used OH (3,1) band emission data from the Advanced Mesospheric Temperature Mapper (AMTM) at the Arctic Lidar Observatory for Middle Atmosphere ...
Subir Mandal, Tracy Moffat‐Griffin, Corwin J. Wright, Pierre‐Dominique Pautet, Mike J. Taylor, Takuji Nakamura   +5 more
wiley   +1 more source

The dynamics of molecular gas in nearby galaxies

, 2013
Includes abstract.
Frank, Bradley Stanton
core  

Two Micron‐Size Dark Dimensions

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui, Ignatios Antoniadis, Dieter Lüst   +2 more
wiley   +1 more source

Stellar dynamics of blue compact galaxies: I. Decoupled star-gas kinematics in ESO 400-G43

, 2004
To appear in A&A lettersIn this letter we present the first results from a program aimed at measuring the stellar kinematics of blue compact galaxies by observing the near-infrared Calcium triplet.
G. Östlin, D. Kunth, Amram, P., Bergvall, N., Marquez, I., Zackrisson, E., I. Márquez, P. Amram, Cumming, R. J., Kunth, D., J. Masegosa, R. J. Cumming, E. Zackrisson, Ostlin, G., Masegosa, J., N. Bergvall   +15 more
core   +2 more sources

The evolution of dark matter substructure [PDF]

, 2001
This thesis investigates the dynamical evolution of systems orbiting within deeper potentials. Initially we use a simple satellite-halo interaction to study the dynamical processes that act on orbiting systems and we compare these results to analytical ...
Roldán, Carlos Antonio Calcáneo
core  

Spatially resolved spectroscopy of faint star-forming galaxies & their environments in the high redshift universe [PDF]

, 2011
This thesis is concerned with the spectroscopic observations of distant galaxies, 1 < z < 5. The galaxies presented here are intrinsically faint such that their ux is dominated by ordinary star formation rather than galaxy-galaxy merging and/or ...
Hurley, Mairéad
core  

An OSIRIS study of the gas kinematics in a sample of UV-selected galaxies: evidence of "hot and bothered" starbursts in the local universe [PDF]

, 2009
We present data from Integral Field Spectroscopy for three supercompact UV-Luminous Galaxies (ScUVLGs). As nearby (z ~ 0.2) compact (R_(50) ~ 1-2 kpc) bright Paschen-α sources, with unusually high star formation rates (SFR = 3-100 M_☉ yr^(–1)), ScUVLGs ...
Overzier, R., Law, D., O'Dowd, M., Goncalves, Thiago S., Overzier, Roderik, Wyder, Ted, Wyder, T., O’Dowd, Matt, Schiminovich, David, Heckman, Tim, Martin, Chris, Law, David R., Heckman, T., Basu-Zych, A., O'Dowd, Matt, Martin, C., Schiminovich, D., Goncalves, T., Basu-Zych, Antara R.   +18 more
core   +1 more source

Secondary evolution of galaxies investigated by N-body simulations

, 2008
In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core  

From nearby to distant galaxies: kinematical and dynamical studies

, 2009
Kinematical studies of low and high redshift galaxies enables to probe galaxy formation and evolution scenarios. Integral field spectroscopy is a powerful tool to study with accuracy nearby galaxies kinematics. Recent observations also gives a new 2D vision of high redshift galaxies kinematics.
openaire   +2 more sources