Results 101 to 110 of about 17,995 (289)

The Secret Lives of Young Massive Star Clusters [PDF]

open access: yes
Many aspects of star cluster formation and evolution are unconstrained. This thesis presents models of star cluster formation — including gas and stellar dynamics, sub-grid star formation, stellar evolution, and stellar feedback — from turbulent gas ...
Polak, Brooke
core   +1 more source

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

open access: yesAdvanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong   +24 more
wiley   +1 more source

The Close Binary Properties of Massive Stars across Different Environments within the LMC

open access: yesThe Astrophysical Journal
We analyze 4859 O stars in the third phase of the Optical Gravitational Lensing Experiment photometric survey of the LMC, including 415 eclipsing binaries (EBs).
Maxwell Moe   +3 more
doaj   +1 more source

OB runaway stars originating in the Vel OB1 association

open access: yesAstronomy & Astrophysics
Context. OB runaway stars are massive stars moving through interstellar space with a high velocity (up to 200 km s−1). They are produced by dynamical ejections in young massive clusters or by supernova explosions in massive binaries.
Azatyan N.   +6 more
doaj   +1 more source

Dynamical ejections of massive stars from young star clusters under diverse initial conditions [PDF]

open access: yes, 2016
We study the effects that initial conditions of star clusters and their massive star population have on dynamical ejections of massive stars from star clusters up to an age of 3 Myr. We use a large set of direct N-body calculations for moderately massive
Pavel Kroupa, Seungkyung Oh
core   +1 more source

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

Gravitational waves from coalescing massive black holes in young dense clusters [PDF]

open access: yes, 2006
HST observations reveal that young massive star clusters form in gas-rich environments like the Antenn{\ae} galaxy which will merge in collisional processes to form larger structures.
Amaro-Seoane, Pau, Pau Amaro-Seoane
core   +4 more sources

FEAST: A NIRSpec/MOS Survey of Emerging Young Star Clusters in NGC 628

open access: yesThe Astrophysical Journal
JWST can pierce through dusty molecular clouds to study the early stages of star formation, where young star clusters are actively driving stellar feedback and still emerging from their natal cloud.
Helena Faustino Vieira   +20 more
doaj   +1 more source

Probing young massive clusters with laser guide star adaptive optics [PDF]

open access: yes, 2009
We use laser guide star adaptive optics (LGS/AO) on the 10 m Keck II telescope to obtain high spatial resolution images of young massive clusters (YMCs) in NGC1569 and M82.
McCrady, Nate
core   +1 more source

Multi‐Omics Profiling Reveals Immunomodulatory and Pro‐Regenerative Effects of a Graphene Oxide–Collagen Scaffold in Massive Rotator Cuff Tears

open access: yesAdvanced Science, EarlyView.
A graphene oxide/collagen scaffold is developed for chronic massive rotator cuff tear repair. The scaffold improves compressive stability, supports reparative mesenchymal differentiation, and modulates the immune microenvironment. In chronic MRCT models, it reduces muscle degeneration, enhances tendon–bone regeneration, and improves functional recovery,
Renwen Wan   +24 more
wiley   +1 more source

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