Results 81 to 90 of about 4,715,495 (301)

The Impact of Stellar Collisions in the Galactic Center [Elektronisk resurs]

open access: yes, 2011
We consider whether stellar collisions can explain the observed depletion of red giants in the Galactic center. We model the stellar population with two different IMFs: 1) the Miller-Scalo and 2) a much flatter IMF.
Church, Ross,   +5 more
core  

Star Formation in the Galactic Center

open access: yes, 2016
Research on Galactic Center star formation is making great advances, in particular due to new data from interferometers spatially resolving molecular clouds in this environment.
Jens Kauffmann
core   +1 more source

Kinematics of ob stars in the nearby galactic disk [PDF]

open access: yes, 2006
The goal of this thesis is it to learn something about the kinematics and structure of the Milky Way. By analysing a sample of young stars in the nearby Galactic disk we can get to know more about the global large-scale structure of our host Galaxy ...
Girard, Caroline
core   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

Widespread Hot Molecular Gas Heated by Shear-induced Turbulence in the Galactic Center

open access: yesThe Astrophysical Journal
We observed NH _3 metastable inversion lines from (3, 3) to (18, 18) toward G0.66-0.13 in the Galactic center with the Shanghai Tianma 65 m radio telescope and Yebes 40 m telescope.
Juan Li   +15 more
doaj   +1 more source

Measuring the Hall Effect in Hysteretic Materials

open access: yesAdvanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya   +6 more
wiley   +1 more source

Supermassive boson star at the galactic center?

open access: yesPhysical Review D, 2000
We explore whether supermassive non-baryonic stars (in particular boson, mini-boson and non-topological soliton stars) might be at the center of some galaxies, with special attention to the Milky Way. We analyze, from a dynamical point of view, what current observational data show, concluding that they are compatible with a single supermassive object ...
Diego F. Torres   +4 more
openaire   +4 more sources

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

open access: yesAdvanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi   +5 more
wiley   +1 more source

Far-infrared spectroscopic observations of the Galactic center region [PDF]

open access: yes, 2008
Context. The Galactic center region is luminous in the far-infrared (FIR), but dominant sources of this luminosity are still controversial. Aims. We investigate physical conditions of the diffuse interstellar medium in the Galactic center region by multi-
Nakagawa, T.   +9 more
core   +2 more sources

3D CMZ. III. Constraining the 3D Structure of the Central Molecular Zone via Molecular Line Emission and Absorption

open access: yesThe Astrophysical Journal
The Milky Way’s Central Molecular Zone (CMZ) is the largest concentration of dense molecular gas in the Galaxy, the structure of which is shaped by the complex interplay between Galactic-scale dynamics and extreme physical conditions.
Daniel L. Walker   +17 more
doaj   +1 more source

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