Results 41 to 50 of about 64,867 (203)
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
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
Moving inhomogeneous envelopes of stars
, 2016 Massive stars are extremely luminous and drive strong winds, blowing a large part of their matter into the galactic environment before they finally explode as a supernova.
Hamann, Wolf-Rainer +2 more
core +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
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
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
A Blind Search for Magnetospheric Emissions from Planetary Companions to Nearby Solar-type Stars
, 2009 This paper reports a blind search for magnetospheric emissions from planets around nearby stars. Young stars are likely to have much stronger stellar winds than the Sun, and because planetary magnetospheric emissions are powered by stellar winds ...
Aubier +33 more
core +1 more source
Using population synthesis of massive stars to study the interstellar medium near OB associations [PDF]
, 2009 We developed a new population synthesis code for groups of massive stars, where we model the emission of different forms of energy and matter from the stars of the association.
A. Chieffi +71 more
core +3 more sources
Symposium - International Astronomical Union, 1979 The region of the O VI resonance doublet around 1030 Å has been observed in 9 stars with the high resolution (0.051 Å FWHM) detector on the Copernicus satellite spectrometer. Although the spectra are confused with interstellar Lyman β and H2 absorption, P Cygni profiles or shifted absorption lines indicating mass flow were found in ζ Pup (O4If), 15 Mon
openaire +1 more source
JWST/NIRCam Imaging of the Bipolar Planetary Nebula NGC 6537: The (Infra)red Spider, Revealed
The Astrophysical JournalWe present James Webb Space Telescope (JWST) Near-Infrared Camera (NIRCam) Br α , H _2 , [Fe ii ], and polycyclic aromatic hydrocarbon (PAH) imaging of the molecule-rich, high-excitation bipolar planetary nebula (PN) NGC 6537 (the Red Spider ...
Joel H. Kastner +7 more
doaj +1 more source