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Understanding how the large-scale kinematics of the MW shape the formation and evolution of the interstellar medium remains challenging from an observational perspective, and numerical models that can reproduce the observed structure and…

Astrophysics of Galaxies · Physics 2026-04-29 Eva Durán-Camacho , Ana Duarte-Cabral

We present an investigation into the morphological features of the Milky Way. We use smoothed particle hydrodynamics (SPH) to simulate the interstellar medium (ISM) in the Milky Way under the effect of a number of different gravitational…

Astrophysics of Galaxies · Physics 2015-06-22 Alex R. Pettitt , Clare L. Dobbs , David M. Acreman , Daniel J. Price

We analyse a sample of 52,000 Milky Way (MW) type galaxies drawn from the publicly available galaxy catalogue of the Millennium Simulation with the aim of studying statistically the differences and similarities of their properties in…

Using our rich observations within the Milky Way to better understand galaxy evolution requires understanding what the Milky Way looks like "as a galaxy" -- that is, its "true" shape and abundance profiles (unskewed by observational…

Astrophysics of Galaxies · Physics 2025-07-24 Gail Zasowski , Julie Imig , Hayley Coluccio

Our Galaxy - the Milky Way - has certain features of the structure and evolution. The morphological, photometric, kinematic, and chemodynamical properties are usually considered in the search for the Milky Way galaxies-analogues (MWAs). The…

The parameters of an axisymmetric model for the gravitational potential of the Galaxy have been refined. The basic curve of the Galaxy's rotation in a distance interval of $R:0-190$ kpc was constructed using the velocities of masers,…

Astrophysics of Galaxies · Physics 2026-01-14 V. V. Bobylev , A. T. Bajkova , A. A. Smirnov

We present the current standing of an investigation into the structure of the Milky Way. We use smoothed particle hydrodynamics (SPH) to simulate the ISM gas in the Milky Way under the effect of a number of different gravitational…

Astrophysics of Galaxies · Physics 2015-06-17 Alex Pettitt , Clare Dobbs , David Acreman , Daniel Price

We demonstrate a new statistical method of determining the global photometric properties of the Milky Way (MW) to an unprecedented degree of accuracy, allowing our Galaxy to be compared directly to objects measured in extragalactic surveys.…

Astrophysics of Galaxies · Physics 2015-08-20 Timothy C. Licquia , Jeffrey A. Newman , Jarle Brinchmann

We present a new theoretical population synthesis model (the Galaxy Model) to examine and deal with large amounts of data from surveys of the Milky Way and to decipher the present and past structure and history of our own Galaxy. We assume…

Astrophysics of Galaxies · Physics 2016-07-27 S. Pasetto , G. Natale , D. Kawata , C. Chiosi , J. A. S. Hunt , C. Brogliato

Milky Way analogues (MWAs) have long been studied by astronomers to place our Galaxy within an extragalactic context. With the power of cosmological simulations, we are now able to not only characterize MWAs today, but also watch as they…

Astrophysics of Galaxies · Physics 2025-08-15 Alicia M. Savelli , Joshua S. Speagle , J. Ted Mackereth , Norman Murray , Kartheik G. Iyer

In this paper, we place the Milky Way (MW) in the context of similar-looking galaxies in terms of their star-formation and chemical evolution histories. We select a sample of 138 Milky-Way analogues (MWAs) from the SDSS-IV/MaNGA survey…

Astrophysics of Galaxies · Physics 2023-03-29 Shuang Zhou , Alfonso Aragón-Salamanca , Michael Merrifield , Brett H. Andrews , Niv Drory , Richard R. Lane

We develop a new technique to equip models of spiral galaxies with self-consistent dynamics that match observations. We apply our technique and construct a model for the Milky Way with a dynamical interstellar medium (ISM). In simulations a…

Astrophysics of Galaxies · Physics 2023-06-21 Joachim Frenkler

We investigate the possibility of describing the spiral pattern of the Milky Way in terms of a model of superposition 2- and 4-armed wave harmonics (the simplest description, besides pure modes). Two complementary methods are used: a study…

Astrophysics · Physics 2009-10-31 J. R. D. Lepine , Yu. N. Mishurov , S. Yu. Dedikov

Observational data indicate that the Milky Way is a barred spiral galaxy. Computation facilities and availability of data from Galactic surveys stimulate the appearance of models of the Galactic structure. More efforts to build dynamical…

Astrophysics of Galaxies · Physics 2018-07-18 Tatiana A. Michtchenko , Jacques R. D. Lépine , Douglas A. Barros , Ronaldo S. S. Vieira

We present an N-body model for the barred Milky Way (MW) galaxy that reproduces many of its properties, including the overall mass distribution, the disc kinematics, and the properties of the central bar. Our high-resolution (N ~ 10^8…

The arm structure of the Milky Way remains somewhat of an unknown, with observational studies hindered by our location within the Galactic disc. In the work presented here we use smoothed particle hydrodynamics (SPH) and radiative transfer…

Astrophysics of Galaxies · Physics 2015-06-24 Alex R. Pettitt , Clare L. Dobbs , David M. Acreman , Matthew R. Bate

We present a model of the Galactic Habitable Zone (GHZ), described in terms of the spatial and temporal dimensions of the Galaxy that may favour the development of complex life. The Milky Way galaxy is modelled using a computational…

Earth and Planetary Astrophysics · Physics 2015-05-28 Michael G. Gowanlock , David R. Patton , Sabine M. McConnell

We use particle data from the Illustris simulation, combined with individual kinematic constraints on the mass of the Milky Way (MW) at specific distances from the Galactic center, to infer the radial distribution of the MW's dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-28 Corbin Taylor , Michael Boylan-Kolchin , Paul Torrey , Mark Vogelsberger , Lars Hernquist

Here we investigate the evolution of a Milky Way (MW) -like galaxy with the aim of predicting the properties of its progenitors all the way from $z \sim 20$ to $z = 0$. We apply GAMESH (Graziani et al. 2015) to a high resolution N-Body…

Astrophysics of Galaxies · Physics 2017-04-18 Luca Graziani , M. de Bennassuti , R. Schneider , D. Kawata , S. Salvadori

Context. Recent observational data show that the Milky Way (MW) galaxy contains about 170 globular clusters (GCs). A fraction of them is likely formed in dwarf galaxies accreted onto the MW in the past, while the remaining of clusters are…

Astrophysics of Galaxies · Physics 2023-05-24 M. Ishchenko , M. Sobolenko , P. Berczik , S. Khoperskov , C. Omarov , O. Sobodar , M. Makukov
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