Results 131 to 140 of about 1,000,727 (374)

The star cluster system of the 3 Gyr old merger remnant NGC 1316: Clues from optical and near-infrared photometry

open access: yes, 2001
The giant merger remnant galaxy NGC 1316 (Fornax A) is an ideal probe for studying the long-term effects of a past major merger on star cluster systems, given its spectroscopically derived merger age of ~3 Gyr which we reported in a recent paper. Here we
Alonso, M. Victoria   +3 more
core   +2 more sources

What Sets the Massive Star Formation Rates and Efficiencies of Giant Molecular Clouds? [PDF]

open access: yes, 2017
Galactic star formation scaling relations show increased scatter from kpc to sub-kpc scales. Investigating this scatter may hold important clues to how the star formation process evolves in time and space. Here, we combine different molecular gas tracers,
B. Ochsendorf   +4 more
semanticscholar   +1 more source

Evolution of Asymptotic Giant Branch Stars [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2005
▪ Abstract  The current status of modeling the evolution and nucleosynthesis of asymptotic giant branch (AGB) stars is reviewed. The principles of AGB evolution have been investigated in recent years leading to improved and refined models, for example with regard to hot-bottom burning or the third dredge-up.
openaire   +2 more sources

Vanadium Doped Magnetic MoS2 Monolayers of Improved Electrical Conductivity as Spin‐Orbit Torque Layer

open access: yesAdvanced Functional Materials, EarlyView.
Electrically conductive and room temperature magnetic atomically thin (≈0.8 nm) vanadium doped MoS2 (V‐MoS2) is demonstrated for its spintronic applications. Here, the spin transport at the interface of permalloy (Py) and high spin‐orbit coupling V‐MoS2 magnetic monolayers is shown.
Krishna Rani Sahoo   +8 more
wiley   +1 more source

Secular Resonances in Planet-hosting Binary Stars. I. General Theory

open access: yesThe Astronomical Journal
Motivated by the diversity of circumstellar planets in binary stars and the strong effects of the secular resonances of Jupiter and Saturn on the formation and architecture of the inner solar system, we have launched an expansive project on studying the ...
Nader Haghighipour, Michael Andrew
doaj   +1 more source

The shock-heated atmosphere of an asymptotic giant branch star resolved by ALMA [PDF]

open access: yes, 2017
Our current understanding of the chemistry and mass-loss processes in Sun-like stars at the end of their evolution depends critically on the description of convection, pulsations and shocks in the extended stellar atmosphere1.
W. Vlemmings   +10 more
semanticscholar   +1 more source

“Writing” Crystal Phases in Amorphous Calcium Carbonate via Laser‐Induced Patterned Transformations

open access: yesAdvanced Functional Materials, EarlyView.
Laser‐induced crystallization enabling the patterning of amorphous calcium carbonate into various distinct phases is introduced. This approach provides spatial control over polymorph selection, both crystalline and amorphous, inspired by biomineralization pathways.
Hadar Shaked   +6 more
wiley   +1 more source

Habitable Zones of Host Stars During the Post-MS Phase

open access: yes, 2010
A star will become brighter and brighter with stellar evolution, and the distance of its habitable zone will become farther and farther. Some planets outside the habitable zone of a host star during the main sequence phase may enter the habitable zone of
A.J. Watson   +43 more
core   +1 more source

Giant pulsar glitches and the inertia of neutron star crusts [PDF]

open access: yes, 2016
Giant pulsar frequency glitches as detected in the emblematic Vela pulsar have long been thought to be the manifestation of a neutron superfluid permeating the inner crust of a neutron star.
T. Delsate   +5 more
semanticscholar   +1 more source

Regulating the Interphase Strain in High‐Entropy Oxide Thin Films – An Approach to Attaining Giant Energy Storage Capability under Moderate Electric Fields

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates an interphase strain engineering strategy to regulate capacitive energy storage performance in high‐entropy oxide thin films. Through introducing pyrochlore nanocolumns, the polarization response of perovskite unit cells is strengthened, yielding recoverable energy densities up to 93 J cm−3 with an efficiency of 83% under ...
Hao Luo   +11 more
wiley   +1 more source

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