Results 141 to 150 of about 9,531 (227)

ALMA FACTS. II. Large Scale Variations in the 12CO(J = 2 – 1) to 12CO(J = 1 – 0) Line Ratio in Nearby Galaxies

The Astrophysical Journal
We present ^12 CO( J  = 1 – 0) mapping observations over ∼1/2 of the optical disk of 12 nearby galaxies from the Fundamental CO 1–0 Transition Survey of nearby galaxies (FACTS), using the ALMA Total Power array. Variations in the ^12 CO( J  = 2 − 1)/ ^12
Shinya Komugi, Tsuyoshi Sawada, Jin Koda, Fumi Egusa, Fumiya Maeda, Akihiko Hirota, Amanda M. Lee   +6 more
doaj   +1 more source

Cluster tidal fields: Effects on disk galaxies [PDF]

, 1993
A variety of observations of galaxies in clusters indicate that the gas in these galaxies is strongly affected by the cluster environment. We present results of a study of the dynamical effects of the mean cluster tidal field on a disk galaxy as it falls
Valluri, Monica
core   +1 more source

Can We Discover Physical Models Using Machine Learning? A Case Study of Galaxy Sizes

The Astrophysical Journal
We explore the ability of machine learning methods to discover underlying equations of physics by searching for the equations governing galaxy size in a semianalytic model. This case study allows us to evaluate the process as we know the ground truth. We
Festa Buçinca-Çupallari, Ariyeh H. Maller, Viviana Acquaviva, Austen Gabrielpillai, Rachel S. Somerville   +4 more
doaj   +1 more source

Scattering, Migration, Recircularization and Relaxation to Build out Galaxy Disks with Exponential Profiles

The Astrophysical Journal
Scattering of stars by interstellar clouds or massive clumps increases the stellar velocity dispersion and promotes a radial disk profile that is exponential.
Curtis Struck, Bruce G. Elmegreen, Elena D’Onghia   +2 more
doaj   +1 more source

The Search for Very High Energy γ-rays from Misaligned AGN [PDF]

, 2013
The aim of this work is to study the potential for emission at very high energies (100 GeV) by misaligned active galactic nuclei (AGN) and the future prospects for observations of these objects with the next generation imaging atmospheric Cherenkov ...
CHEESEBROUGH, ALISTAIR
core  

Random interactions with disk galaxies [PDF]

, 1996
Numerical simulations of galaxies have been used to study numerous characteristics and interactions of elliptical galaxies while disk galaxies have not been studied extensively with fully three-dimensional models of all components.
Edelsohn, David J.
core  

Polarized thermal emission from dust in a galaxy at redshift 2.6. [PDF]

Nature, 2023
Geach JE, Lopez-Rodriguez E, Doherty MJ, Chen J, Ivison RJ, Bendo GJ, Dye S, Coppin KEK.   +7 more
europepmc   +1 more source

A Discrete Informational Framework for Classical Gravity: Ledger Foundations and Galaxy Rotation Curve Constraints. [PDF]

Entropy (Basel)
Simons M, Allahyarov E, Washburn J.
europepmc   +1 more source

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

Nature, 2023
Costantin L, Pérez-González PG, Guo Y, Buttitta C, Jogee S, Bagley MB, Barro G, Kartaltepe JS, Koekemoer AM, Cabello C, Corsini EM, Méndez-Abreu J, de la Vega A, Iyer KG, Bisigello L, Cheng Y, Morelli L, Arrabal Haro P, Buitrago F, Cooper MC, Dekel A, Dickinson M, Finkelstein SL, Giavalisco M, Holwerda BW, Huertas-Company M, Lucas RA, Papovich C, Pirzkal N, Seillé LM, Vega-Ferrero J, Wuyts S, Yung LYA.   +32 more
europepmc   +1 more source

Simulations of multi-phase gas in and around galaxies. [PDF]

Living Rev Comput Astrophys
Gronke M, E Schneider E.
europepmc   +1 more source