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相关论文: The Milky Way Bulge: Observed properties and a com…

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Near infrared images from the COBE satellite presented the first clear evidence that our Milky Way galaxy contains a boxy shaped bulge. Recent years have witnessed a gradual paradigm shift in the formation and evolution of the Galactic…

星系天体物理 · 物理学 2015-12-09 Juntai Shen , Zhao-Yu Li

The Milky Way is a barred galaxy whose central bulge has a box/peanut shape and consists of multiple stellar populations with different orbit distributions. This review describes dynamical and chemo-dynamical equilibrium models for the…

星系天体物理 · 物理学 2018-08-22 Ortwin Gerhard

The Milky Way is the only galaxy for which we can resolve individual stars at all evolutionary phases, from the Galactic center to the outskirt. The last decade, thanks to the advent of near IR detectors and 8 meter class telescopes, has…

天体物理学 · 物理学 2009-11-13 Dante Minniti , Manuela Zoccali

Much of our effort in understanding the long-term evolution and morphology of the Milky Way and other galaxies has focused on the equilibrium of its luminous disk. However, the interplay between all components, seen and unseen, is a major…

天体物理学 · 物理学 2007-05-23 Martin D. Weinberg

The Milky Way bulge has a boxy/peanut morphology and an X-shaped structure. This X-shape has been revealed by the `split in the red clump' from star counts along the line of sight toward the bulge, measured from photometric surveys. This…

星系天体物理 · 物理学 2016-06-29 Melissa Ness , Dustin Lang

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…

星系天体物理 · 物理学 2014-08-04 Ortwin Gerhard

This review discusses the structure and evolution of the Milky Way, in the context of opportunities provided by asteroseismology of red giants. The review is structured according to the main Galactic components: the thin disk, thick disk,…

星系天体物理 · 物理学 2015-05-30 Ken Freeman

The assembly of the Milky Way bulge is an old topic in astronomy, one now in a period of renewed and rapid development. The dominant scenario for bulge formation is that of the Milky Way as a nearly pure disk galaxy, with the inner disk…

星系天体物理 · 物理学 2017-10-04 David M. Nataf

We present a new investigation of the habitability of the Milky Way bulge, that expands previous studies on the Galactic Habitable Zone. We discuss existing knowledge on the abundance of planets in the bulge, metallicity and the possible…

地球与行星天体物理 · 物理学 2020-08-05 Amedeo Balbi , Maryam Hami , Andjelka B. Kovačević

This chapter reviews the three-dimensional structure, age, kinematics, and chemistry of the Milky Way (MW) region within ~2 kpc from its center (hereafter referred to as the 'bulge') from an observational perspective. While not exhaustive…

星系天体物理 · 物理学 2024-12-03 Manuela Zoccali , Elena Valenti

Invited Review at IAU Symp 164 on Stellar Populations. The Milky Way Galaxy offers a unique opportunity for testing theories of galaxy formation and evolution. The study of the spatial distribution, kinematics and chemical abundances of…

天体物理学 · 物理学 2009-10-22 Rosemary F. G. Wyse

The structural parameters of a galaxy can be used to gain insight into its formation and evolution history. In this paper, we strive to compare the Milky Way's structural parameters to other, primarily edge-on, spiral galaxies in order to…

星系天体物理 · 物理学 2024-01-09 Jacob A. Guerrette , Aleksandr V. Mosenkov , Dallin Spencer , Zacory D. Shakespear

The detailed dynamical structure of the bulge in the Milky Way is currently under debate. Although kinematics of the bulge stars can be well reproduced by a boxy-bulge, the possible existence of a small embedded classical bulge can not be…

星系天体物理 · 物理学 2015-05-30 Kanak Saha , Inma Martinez-Valpuesta , Ortwin Gerhard

We examine the metallicity trends in the Milky Way (MW) bulge - using APOGEE DR13 data - and explore their origin by comparing two N-body models of isolated galaxies which develop a bar and a boxy/peanut (b/p) bulge. Both models have been…

星系天体物理 · 物理学 2017-11-15 F. Fragkoudi , P. Di Matteo , M. Haywood , S. Khoperskov , A. Gómez , M. Schultheis , F. Combes , B. Semelin

By means of idealized, dissipationless N-body simulations which follow the formation and subsequent buckling of a stellar bar, we study the characteristics of boxy/peanut-shaped bulges and compare them with the properties of the stellar…

星系天体物理 · 物理学 2014-09-05 P. Di Matteo , M. Haywood , A. Gomez , L. van Damme , F. Combes , A. Halle , B. Semelin , M. D. Lehnert , D. Katz

Our Galaxy, the Milky Way, is a benchmark for understanding disk galaxies. It is the only galaxy whose formation history can be studied using the full distribution of stars from white dwarfs to supergiants. The oldest components provide us…

星系天体物理 · 物理学 2017-01-06 Joss Bland-Hawthorn , Ortwin Gerhard

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…

We use N-body chemo-dynamic simulations to study the coupling between morphology, kinematics and metallicity of the bar/bulge region of our Galaxy. We make qualitative comparisons of our results with available observations and find very…

星系天体物理 · 物理学 2017-02-15 E. Athanassoula , S. A. Rodionov , N. Prantzos

The Galactic bulge, that is the prominent out-of-plane over-density present in the inner few kiloparsecs of the Galaxy, is a complex structure, as the morphology, kinematics, chemistry and ages of its stars indicate. To understand the…

星系天体物理 · 物理学 2016-07-06 P. Di Matteo

Galaxies with Milky Way-like stellar masses have a wide range of bulge and black hole masses; in turn, these correlate with other properties such as star formation history. While many processes may drive bulge formation, major and minor…

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