Results 91 to 100 of about 1,118 (188)

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

The 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, Kyle B. Westfall, Kevin Bundy, Niv Drory, Matthew A. Bershady, Stephanie Campbell, Anne-Marie Weijmans, Karen L. Masters, David Stark, David Law   +9 more
doaj   +1 more source

The Role of Baryonic and Dark Matter in Bar Kinematics

The Astrophysical Journal
Simulations predict that bars in galaxies should slow down over time. This is often attributed to the exchange of angular momentum between the bar and other regions of the galaxy, such as the outer disk and dark matter halo, which implies that galaxies ...
Tobias Géron, Kai Zhu, Steph Campbell, Chris Lintott, Rebecca J. Smethurst, Behzad Tahmasebzadeh   +5 more
doaj   +1 more source

A Shocked Wind Interpretation of an Odd Radio Circle

The 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, David S. N. Rupke, Serena Perrotta, Saloni Agrawal, Cassandra Lochhaas   +4 more
doaj   +1 more source

WALLABY Pilot Survey: Characterizing Low-rotation Kinematically Modeled Galaxies

The 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, K. Spekkens, N. Arora, R. Dudley, H. White, A. Helias, J. English, T. O’Beirne, V. Kilborn, G. Ferrand, M. L. A. Richardson, B. Catinella, L. Cortese, H. Dénes, A. Elagali, B.-Q. For, K. Lee-Waddell, J. Rhee, L. Shao, A. X. Shen, L. Staveley-Smith, T. Westmeier, O. I. Wong   +22 more
doaj   +1 more source

The Intrinsic Flattening of Galaxy Disks

The 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, Stéphane Courteau, Sébastien Comerón, Connor Stone   +3 more
doaj   +1 more source

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

The 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, Fazeel Mahmood Khan, Isaiah Williams, Jaelyn Roth, Michael Rizzo Smith, Kaitlin Porter, Jillian Bellovary, Andrea Derdzinski, Andrea V. Macciò   +8 more
doaj   +1 more source

The Sunburst Arc with JWST. IV. The Importance of Interaction, Turbulence, and Feedback for Lyman-continuum Escape

The Astrophysical Journal
At present, the best opportunity for detailed Lyman continuum (LyC) escape studies is in gravitationally lensed galaxies at z  ≳ 2. Only one such galaxy currently exists in the literature with sufficient magnification and spatial resolution: the Sunburst
T. Emil Rivera-Thorsen, Brian Welch, Taylor Hutchison, Matthew J. Hayes, Jane R. Rigby, Keunho Kim, Suhyeon Choe, Michael Florian, Matthew B. Bayliss, Gourav Khullar, Keren Sharon, Håkon Dahle, John Chisholm, Erik Solhaug, M. Riley Owens, Michael D. Gladders   +15 more
doaj   +1 more source

Modeling the Kinematics of Distant Galaxies

, 2012
7 pages, 3 figures, accepted for publication in Baltic ...
Kipper, R., Tempel, E., Tamm, A.
openaire   +2 more sources

Kinematic and Dynamics of the Galaxy ESO 358-60

The Astrophysical Journal
We investigate the velocity field derived from H I measurements of the irregular galaxy ESO 358-60 using the velocity ring model (VRM) method. This technique, which assumes a coplanar disk, allows us to reconstruct coarse-grained maps of both radial and ...
Francesco Sylos Labini, Matteo Straccamore   +1 more
doaj   +1 more source

Physical characterization of the local system NGC 1313: A flattening in its chemical abundance by past interactions

Astronomy & Astrophysics
Context. Interacting galaxies provide unique information on morphological transformation, enhanced star formation, and chemical evolution, and thus contribute to understanding the complex evolution of galaxies. Aims. We investigated the local interacting
Ojeda-Díaz Belén, Torres-Flores Sergio, Olave-Rojas Daniela E., Lima-Dias Ciria, Lago Paulo J. A., de Oliveira Claudia Mendes, Amram Philippe, Quint Bruno C.   +7 more
doaj   +1 more source