Results 51 to 60 of about 65,066 (300)
First JWST/NIRSpec Spectroscopy of O Stars in the Small Magellanic Cloud
The Astrophysical Journal LettersDetermining how much mass is removed by stellar winds is crucial to understanding massive star evolution and feedback. However, traditional spectroscopic diagnostics in the UV and optical are not sensitive enough to characterize weak stellar winds of OB ...
Armin Mang Román +12 more
doaj +1 more source
Stellar magnetism, winds and their effects on planetary environments
, 2016 Here, I review some recent works on magnetism of cool, main-sequence stars, their winds and potential impact on surrounding exoplanets. The winds of these stars are very tenuous and persist during their lifetime.
Vidotto, A. A.
core +1 more source
Observational evidences of stellar wind [PDF]
International Astronomical Union Colloquium, 1981 AbstractObservations mainly from the IUE Spectra of HD 152236 (Blla) have been used to provide support to the various aspects of the theory of stellar wind (SW) and its interaction with the interstellar medium (ISM). Lines arising from excited levels connected radiatively to the ground level tend to be more frequent and/or strong compared to those ...
openaire +1 more source
Molecular Oncology, EarlyView.Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice +16 more
wiley +1 more source
Critical Metallicity of Cool Supergiant Formation. I. Effects on Stellar-mass Loss and Feedback
The Astrophysical Journal, 2023 This paper systematically studies the relation between metallicity and mass loss of massive stars. We perform one-dimensional stellar evolution simulations and build a grid of ∼2000 models with initial masses ranging between 11 and 60 M _⊙ and absolute ...
Po-Sheng Ou +3 more
doaj +1 more source
Probing Clumpy Stellar Winds in SFXTs
, 2008 Quantitative constraints on the wind clumping of massive stars can be obtained from the study of the hard X-ray variability of SFXTs. In these systems, a large fraction of the hard X-ray emission is emitted in the form of flares with typical duration of ...
Christopher R. Gelino +5 more
core +1 more source
Galactic Centre stellar winds and Sgr A* accretion [PDF]
, 2005 (ABRIDGED) We present in detail our new 3D numerical models for the accretion of stellar winds on to Sgr A*. In our most sophisticated models, we put stars on realistic orbits around Sgr A*, include `slow' winds (300 km/s), and account for radiative ...
Cuadra, J. +3 more
core +2 more sources
Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma
Molecular Oncology, EarlyView.Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken +7 more
wiley +1 more source
Detection of Metal Enrichment by SN 2011jm in NGC 4809
The Astrophysical Journal LettersCosmic metals are believed to originate from stellar and supernovae (SNe) nucleosynthesis, dispersed into the interstellar medium (ISM) through stellar winds and supernova explosions.
Yulong Gao +4 more
doaj +1 more source
Hadronic processes within collective stellar winds
, 2005 Recently, we have proposed that the interaction between relativistic protons resulting from Fermi first order acceleration in the superbubble of a stellar OB association or in other nearby accelerator and ions residing in single stellar winds of massive ...
Domingo-Santamaria, Eva +1 more
core +1 more source