Results 131 to 140 of about 4,353 (224)

The LEGARE Project

Astronomy & Astrophysics
Context. The nuclear stellar disc (NSD) of the Milky Way is a dense, rotating stellar system in the central ~200 pc. The NSD is thought to be primarily fuelled by bar-driven gas inflows from the inner Galactic disc. Aims.
Spitoni E., Schultheis M., Matteucci F., Ryde N., Cescutti G., Saro A., Sormani M. C., Thorsbro B.   +7 more
doaj   +1 more source

Asymmetric eROSITA bubbles as the evidence of a circumgalactic medium wind. [PDF]

Nat Commun, 2023
Mou G, Sun D, Fang T, Wang W, Zhang R, Yuan F, Sofue Y, Wang T, He Z.   +8 more
europepmc   +1 more source

Abundances in Galactic Bulge Dwarfs and the Origin of the Elements in the Bulge [PDF]

, 2008
The Galactic Bulge has a very different chemical evolution history than the Milky Way disk or halo. The unique mix of supernovae and asymptotic giant branch stars that have contributed to the elements in the bulge offer the opportunity to identify or ...
Johnson, Jeniffer A., Gaudi, B. Scott, Gal-Yam, Avishay, Leonard, Douglas C., Sumi, Takahiro, Cohen, Judith G., Udalski, Andrzej, Bond, Ian A., Gould, Andrew, Simon, Joshua D., Huang, Wenjin   +10 more
core  

Tracing the Galactic Origins of Selected Four G-type Stars in the Solar Neighborhood

The Astronomical Journal
We present a multimethod investigation of four metal-poor G-type main-sequence stars to resolve their Galactic origins. By combining high-resolution spectroscopy from PolarBase, photometric/astrometric data from Gaia DR3, and spectral energy distribution
Deniz Cennet Çınar, Selçuk Bilir, Timur Şahin, Olcay Plevne   +3 more
doaj   +1 more source

The Age of the Galactic Bulge

, 2001
9 pages, 2 figures, To appear in Astrophysical Ages and Timescales, ASP Conference Series, eds. T. von Hippel, N.
openaire   +2 more sources

The Galactic bulge exploration

Astronomy & Astrophysics
We present a new set of period–absolute magnitude–metallicity (PMZ) relations for single-mode RR Lyrae stars calibrated for the optical GBP, V, G, GRP, near-infrared I, J, H, and Ks passbands. We compiled a large dataset (over 100 objects) of fundamental and first-overtone RR Lyrae pulsators consisting of mean intensity magnitudes, reddenings ...
Z. Prudil, A. Kunder, I. Dékány, A. J. Koch-Hansen   +3 more
openaire   +1 more source

The Metallicity Gradient of the Old Galactic Bulge Population

, 2015
Understanding the structure, formation and evolution of the Galactic Bulge requires the proper determination of spatial metallicity gradients in both the radial and vertical directions.
Sans Fuentes, Alejandra, De Ridder, Joris   +1 more
core   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

A Survey for New PNe in the Southern Galactic Bulge

, 1998
We present the results of a deep and uniform narrow-band Hα imaging survey for planetary nebulæ (PNe) in the southern galactic bulge. The goal of this survey was to obtain a sample of bulge tracers which can be used to study the dynamics of the Milky Way
Michael A. Dopita, Sylvie F. Beaulieu
core   +1 more source

Overview of the LAMOST survey in the first decade. [PDF]

Innovation (Camb), 2022
Yan H, Li H, Wang S, Zong W, Yuan H, Xiang M, Huang Y, Xie J, Dong S, Yuan H, Bi S, Chu Y, Cui X, Deng L, Fu J, Han Z, Hou J, Li G, Liu C, Liu J, Liu X, Luo A, Shi J, Wu X, Zhang H, Zhao G, Zhao Y.   +26 more
europepmc   +1 more source