English
Related papers

Related papers: The Galaxy in Context: Structural, Kinematic and I…

200 papers

The Milky Way bulge offers a unique opportunity to investigate in detail the role that different processes such as dynamical instabilities, hierarchical merging, and dissipational collapse may have played in the history of the Galaxy…

Astrophysics of Galaxies · Physics 2015-12-09 Oscar A. Gonzalez , Dimitri A. Gadotti

The Milky Way galaxy is observed to have multiple components with distinct properties, such as the bulge, disk, and halo. Unraveling the assembly history of these populations provides a powerful test to the theory of galaxy formation and…

Astrophysics of Galaxies · Physics 2015-06-05 Jason Kalirai

By analyzing a N-body simulation of a bulge formed simply via a bar instability mechanism operating on a kinematically cold stellar disk, and by comparing the results of this analysis with the structural and kinematic properties of the main…

Astrophysics of Galaxies · Physics 2015-04-22 P. Di Matteo , A. Gomez , M. Haywood , F. Combes , M. D. Lehnert , M. Ness , O. N. Snaith , D. Katz , B. Semelin

Stellar halos may hold some of the best preserved fossils of the formation history of galaxies. They are a natural product of the merging processes that probably take place during the assembly of a galaxy, and hence may well be the most…

Astrophysics · Physics 2009-06-23 Amina Helmi

Like the majority of spiral galaxies, the Milky Way contains a central non-axisymmetric bar component. Our position in the Galactic plane renders it rather hard to see, but also allows us to make measurements of the bar that are completely…

Astrophysics · Physics 2008-11-26 M. R. Merrifield

I discuss how the chemical abundance distributions, kinematics and age distributions of stars in the thin and thick disks of the Galaxy can be used to decipher the merger history of the Milky Way, a typical large galaxy. The observational…

Astrophysics · Physics 2015-05-13 Rosemary F. G. Wyse

Cosmologists have often considered the Milky Way as a typical spiral galaxy, and its properties have considerably influenced the current scheme of galaxy formation. Here we compare the general properties of the Milky Way disk and halo with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 F. Hammer , M. Puech , H. Flores , Y. B. Yang , J. L. Wang , S. Fouquet

We discuss the main ingredients necessary to build models of chemical evolution of spiral galaxies and in particular the Milky Way galaxy. These ingredients include: the star formation rate, the initial mass function, the stellar yields and…

Astrophysics · Physics 2007-05-23 Francesca Matteucci

Studies of nearby galaxies including the Milky Way have provided fundamental information on the evolution of structure in the Universe, the existence and nature of dark matter, the origin and evolution of galaxies, and the global features…

Cosmology and Nongalactic Astrophysics · Physics 2009-02-24 F. J. Lockman , J. Ott

We review recent research on the Milky Way galaxy and try to investigate whether its shape is similar to other barred galaxies. The emphasis is given on microlensing research because this method can be useful in determining the shape of the…

Astrophysics · Physics 2007-05-23 S. Samurovic , V. Milosevic-Zdjelar , M. M. Cirkovic , V. Celebonovic

Galactic archaeology represents a multidisciplinary approach aimed at unraveling the intricate history of the Milky Way galaxy through the study of its stellar populations. This abstract delves into the significance of galactic archaeology…

Astrophysics of Galaxies · Physics 2023-08-17 J. Alfredo Collazos

In its first part, this paper summarizes recent work on the mass and shape of the Galactic dark halo. The second part presents a review of the large-scale structure of the Milky Way, and of the evidence that the inner Galaxy is dominated by…

Astrophysics · Physics 2009-11-11 Ortwin Gerhard

The Galactic bulge is now considered to be the inner three-dimensional part of the Milky Way's bar. It has a peanut shape and is characterized by cylindrical rotation. In N-body simulations, box/peanut bulges arise from disks through bar…

Astrophysics of Galaxies · Physics 2014-08-04 Ortwin Gerhard

The formation of galaxies can be understood in terms of the assembly patterns of each type of galactic component. To perform this kind of analysis, is necessary to define some criteria to separate those components. Decomposition methods…

The Milky Way's bar dominates the orbits of stars and the flow of cold gas in the inner Galaxy, and is therefore of major importance for Milky Way dynamical studies in the Gaia era. Here we discuss the pronounced peanut shape of the…

Astrophysics of Galaxies · Physics 2018-03-14 Ortwin Gerhard , Christopher Wegg

The Milky Way is a unique laboratory, where stellar properties can be measured and analyzed in detail. In particular, stars in the older populations encode information on the mechanisms that led to the formation of our Galaxy. In this…

Because of its nearness to Earth, the centre of the Milky Way is the only galaxy nucleus in which we can study the characteristics, distribution, kinematics, and dynamics of the stars on milli-parsec scales. We have accurate and precise…

Astrophysics of Galaxies · Physics 2017-08-23 Rainer Schödel

The DENIS/ISOGAL near/mid-IR survey of the Milky Way for the first time probes stellar populations in the innermost obscured regions of our galaxy. Ages, metallicities and extinction-corrected luminosities are derived for these stars…

Astrophysics · Physics 2019-08-17 Jacco van Loon

Upcoming next generation galactic surveys, such as GAIA and HERMES, will deliver unprecedented detail about the structure and make-up of our Galaxy, the Milky Way, and promise to radically improve our understanding of it. However, to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Simon J. Mutch , Darren J. Croton , Gregory B. Poole

The Milky Way is a spiral galaxy with the Schechter characteristic luminosity $L_*$, thus an important anchor point of the Hubble sequence of all spiral galaxies. Yet the true appearance of the Milky Way has remained elusive for centuries.…

Astrophysics of Galaxies · Physics 2020-12-21 Juntai Shen , Xing-Wu Zheng