Results 111 to 120 of about 84,076 (356)
Evidence for the Third Stellar Population in the Milky Way’s Disk [PDF]
The Astrophysical Journal, 2019 Abstract The Milky Way is a unique laboratory in which 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 article, we analyze the kinematics, spatial distribution, and chemistry of a large number of ...
Daniela Carollo +8 more
openaire +2 more sources
ORIGIN AND EVOLUTION OF THE ABUNDANCE GRADIENT ALONG THE MILKY WAY DISK [PDF]
, 2009 Based on a simple model of the chemical evolution of the Milky Way disk, we investigate the disk oxygen abundance gradient and its time evolution. Two star formation rates (SFRs) are considered, one is the classical Kennicutt–Schmidt law (Ψ = 0.25Σ1.4gas,
J. Fu +9 more
semanticscholar +1 more source
Advanced Science, EarlyView.Microglial lipid metabolic dysfunction drives neurodegeneration in glaucoma. We found loss of LRP1 causes lipid accumulation and inflammation. We developed alpinetin‐loaded nanoparticles (AlpNPs) that bind LRP1, activate the PPARγ‐LXRα‐ABCA1 pathway to restore lipid homeostasis, promote an anti‐inflammatory phenotype, and protect retinal ganglion cells,
Miao Wei +8 more
wiley +1 more source
The Stellar Disk Structure Revealed by the Mono-age Populations of the LAMOST Red Clump Star Sample
The Astronomical JournalUnderstanding the structure of the Galactic disk is crucial for understanding the formation and evolutionary history of the Milky Way. This study examines the structure of the Galactic disk by analyzing a sample of 138,667 primary red clump (RC) stars ...
Zheng Yu +4 more
doaj +1 more source
Milky Way versus Andromeda: a tale of two disks [PDF]
Astronomy & Astrophysics, 2009 13 Pages, 7 figures, 2 tables, accepted for publication in Astronomy and ...
Yin, J. +6 more
openaire +2 more sources
Advanced Science, EarlyView.The present study investigates a cone‐specific STX3 knockout model, displaying a complete loss of cone function, a later onset reduction in rod function, and photoreceptor cell death. A cone‐specific depletion of STXBP1 and ARR4 could be observed in this model.
Lars Tebbe +5 more
wiley +1 more source
The Astrophysical JournalThe Milky Way (MW) is a barred spiral galaxy shaped by tidal interactions with its satellites. The Large Magellanic Cloud (LMC) and the Sagittarius dwarf galaxy (Sgr) are the dominant influences at the present day. This paper presents a suite of four 10 ^
Ioana A. Stelea +2 more
doaj +1 more source
, 2005 The history of the Milky Way Galaxy is written in the properties of its stellar populations. Here we analyse stars observed as part of surveys of local dwarf spheroidal galaxies, but which from their kinematics are highly probable to be non-members.
A. Koch +9 more
core +2 more sources
On the Formation of Planets in the Milky Way’s Thick Disk
The Astrophysical JournalAbstract Exoplanet demographic surveys have revealed that close-in (≲1 au) small planets orbiting stars in the Milky Way’s thick disk are ∼50% less abundant than those orbiting stars in the Galactic thin disk. One key difference between the two stellar populations is the time at which they emerged: thick-disk stars are the likely product
Tim Hallatt, Eve J. Lee
openaire +3 more sources
Chemical enrichment and star formation in the Milky Way disk - III. Chemodynamical constraints [PDF]
, 2004 In this paper, we investigate some chemokinematical properties of the Milky Way disk, by using a sample composed by 424 late-type dwarfs. We show that the velocity dispersion of a stellar group correlates with the age of this group, according to a law ...
H. Rocha-Pinto +6 more
semanticscholar +1 more source