Results 141 to 150 of about 605,159 (270)

The Strength of Bisymmetric Modes in SDSS-IV/MaNGA Barred Galaxy Kinematics

open access: yesThe Astrophysical Journal
The Sloan Digital Sky Survey-IV/Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Survey data provide an unprecedented opportunity to study the internal motions of galaxies and, in particular, represent the largest sample of barred galaxy ...
Brian DiGiorgio Zanger   +9 more
doaj   +1 more source

Kinematics of gas in a triaxial galaxy

open access: yesThe Astrophysical Journal, 1989
The morphology and kinematics of cold gas in a triaxial Staeckel potential are discussed. The properties of the gas disks and rings and their projections are examined. How observations of a ring or disk can be used to constrain the orientation of the galaxy with respect to the observer and how the intrinsic shape can be determined are analyzed, and it ...
Zeeuw, P.T. de, Franx, M.
openaire   +3 more sources

A Shocked Wind Interpretation of an Odd Radio Circle

open access: yesThe Astrophysical Journal
Odd radio circles (ORCs) are a new class of extragalactic object, with large rings of faint radio continuum emission typically spanning hundreds of kiloparsecs; their origins are unknown.
Alison L. Coil   +4 more
doaj   +1 more source

Secondary evolution of galaxies investigated by N-body simulations

open access: yes, 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  

Structure and kinematics of the nearby dwarf galaxy UGCA 105

open access: yes, 2013
Owing to their shallow stellar potential, dwarf galaxies possess thick gas disks, which makes them good candidates for studies of the galactic vertical kinematical structure.
Oh, S-H   +15 more
core   +1 more source

WALLABY Pilot Survey: Characterizing Low-rotation Kinematically Modeled Galaxies

open access: yesThe Astrophysical Journal
Many of the tensions in cosmological models of the Universe lie in the low-mass, low-velocity regime. Probing this regime requires a statistically significant sample of galaxies with well-measured kinematics and robustly measured uncertainties.
N. Deg   +22 more
doaj   +1 more source

Handy Relation between Binary Black Hole Merger Times and Host Galaxy Properties

open access: yesThe Astrophysical Journal Letters
Over the past 15 yr, the evidence has clearly demonstrated that massive black hole (MBH) binary merger timescales depend strongly on the structural and kinematic properties of their host galaxy.
Kelly Holley-Bockelmann   +8 more
doaj   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

open access: yes, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

Galaxy kinematics from counter-dispersed imaging

open access: yes, 1999
Determining the internal kinematics of a galaxy from planetary nebulae (PN) is usually a two-step process in which the candidate PN are first identified in a target galaxy and then, in a follow-up run, spectra are obtained.
Taylor, K, Douglas, NG
core   +1 more source

The Intrinsic Flattening of Galaxy Disks

open access: yesThe Astrophysical Journal
Highly inclined (edge-on) disk galaxies offer the unique perspective to constrain their intrinsic flattening, c / a , where c and a are, respectively, the vertical and long radial axes of the disk measured at suitable stellar densities.
Jeremy Favaro   +3 more
doaj   +1 more source

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