Results 1 to 10 of about 1,906 (170)

Kinematics and dynamics of the luminous infrared galaxy pair NGC 5257/58 (Arp 240) [PDF]

Astronomy & Astrophysics, 2018
Context. Encounters between galaxies modify their morphology, kinematics, and star formation history. The relation between these changes and external perturbations is not straightforward. The great number of parameters involved requires both the study of
I. Fuentes-Carrera, M. Rosado, P. Amram, E. Laurikainen, H. Salo, J. Gómez-López, H. Castaneda, A. Bernal, C. B. ESFM-IPN, Ia-Unam, Lam, University of Oulu Gepi, O. Paris-meudon   +12 more
semanticscholar   +7 more sources

The SAMI Galaxy Survey: Kinematics of Stars and Gas in Brightest Group Galaxies—The Role of Group Dynamics [PDF]

The Astrophysical Journal, 2020
We study the stellar and gas kinematics of the brightest group galaxies (BGGs) in dynamically relaxed and unrelaxed galaxy groups for a sample of 154 galaxies in the SAMI galaxy survey.
M. Raouf, Rory J. E. Smith, H. Khosroshahi, J. V. D. Sande, J. Bryant, L. Cortese, S. Brough, S. Croom, H. Hwang, S. Driver, Á. López-Sánchez, J. Ko, Jae-Woo Kim, Jihye Shin, N. Scott, J. Bland-Hawthorn, S. Richards, M. Owers, J. Lawrence, I. Konstantopoulos   +19 more
semanticscholar   +4 more sources

A new step forward in realistic cluster lens mass modelling: Analysis of Hubble Frontier Field Cluster Abell S1063 from joint lensing, X-ray and galaxy kinematics data [PDF]

Monthly notices of the Royal Astronomical Society, 2023
We present a new method to simultaneously and self-consistently model the mass distribution of galaxy clusters that combines constraints from strong lensing features, X-ray emission and galaxy kinematics measurements.
Beauchesne Benjamin, Benjamin Cl'ement, P. Hibon, M. Limousin, D. Eckert, J. Kneib, J. Richard, P. Natarajan, M. Jauzac, M. Montes, G. Mahler, A. Claeyssens, A. Jeanneau, A. Koekemoer, D. Lagattuta, A. Pagul, J. S'anchez   +16 more
semanticscholar   +1 more source

Investigating kinematics and dynamics of three open clusters towards Galactic anti-center [PDF]

Monthly notices of the Royal Astronomical Society, 2023
We present the intra-cluster kinematics and dynamics of three open clusters: NGC 1193, NGC 2355, and King 12 by incorporating kinematical and photometric data from Gaia DR3, as well as a ground-based telescope.
G. Rangwal, R. Yadav, D. Bisht, A. Durgapal, D. Sariya   +4 more
semanticscholar   +1 more source

Gas and stellar dynamics in Stephan's Quintet. Mapping the kinematics in a closely interacting compact galaxy group [PDF]

Astronomy & Astrophysics, 2021
In nearby compact galaxy groups we can study the complex processes of galaxy interactions at high resolution and obtain a window into a time in the history of the Universe when the galaxies were closely spaced and the intergalactic medium was awash with ...
M. Yttergren, P. Misquitta, 'A. S'anchez-Monge, M. Valencia-S., A. Eckart, A. Zensus, T. Peitl-Thiesen   +6 more
semanticscholar   +1 more source

Characterization and dynamics of the peculiar stream Jhelum. A tentative role for the Sagittarius dwarf galaxy [PDF]

Astronomy & Astrophysics, 2022
Stellar streams are a promising tool to study the Milky Way's dark matter subhalo population, as interactions with subhalos could produce substructure in streams. However, other possible causes for substructure first need to be well understood.
H. Woudenberg, O. Koop, E. Balbinot, A. Helmi   +3 more
semanticscholar   +1 more source

The Outermost Edges of the Milky Way Halo from Galaxy Kinematics [PDF]

Astrophysical Journal Letters, 2021
We measure for the first time the outermost edges of the Milky Way (MW) halo in terms of the depletion and turnaround radii. The inner depletion radius, r id, identified at the location of maximum infall velocity, separates a growing halo from the ...
Zhaozhou Li, Jiaxin Han
semanticscholar   +1 more source

New Velocity Measurements of NGC 5128 Globular Clusters Out to 130 kpc: Outer Halo Kinematics, Substructure, and Dynamics [PDF]

Astrophysical Journal, 2022
We present new radial velocity measurements from the Magellan and the Anglo-Australian Telescopes for 175 previously known and 121 newly confirmed globular clusters (GCs) around NGC 5128, the nearest accessible massive early-type galaxy at D = 3.8 Mpc ...
A. Hughes, D. Sand, A. Seth, J. Strader, C. Lidman, K. Voggel, Antoine Dumont, D. Crnojević, M. Mateo, N. Caldwell, D. Forbes, Sarah Pearson, P. Guhathakurta, E. Toloba   +13 more
semanticscholar   +1 more source

Supermassive black hole mass in the massive elliptical galaxy M87 from integral-field stellar dynamics using OASIS and MUSE with adaptive optics: assessing systematic uncertainties [PDF]

Monthly notices of the Royal Astronomical Society, 2023
The massive elliptical galaxy M87 has been the subject of several supermassive black hole mass measurements from stellar dynamics, gas dynamics, and recently the black hole shadow by the Event Horizon Telescope (EHT).
David A Simon, M. Cappellari, J. Hartke
semanticscholar   +1 more source

No need for dark matter: resolved kinematics of the ultra-diffuse galaxy AGC 114905 [PDF]

, 2021
We present new H i interferometric observations of the gas-rich ultra-diffuse galaxy AGC 114905, which previous work, based on low-resolution data, identified as an outlier of the baryonic Tully-Fisher relation.
P. E. M. Piña, F. Fraternali, T. Oosterloo, E. Adams, K. Oman, L. Leisman   +5 more
semanticscholar   +1 more source