Stellar chromospheres
STELLAR CHROMOSPHERES - NASA Technical Reports Server
IAU Colloquium 19 on "Stellar Chromospheres" was a natural extension of its predecessor "Spectrum Formation in Stars with Steady State.
Stellar Chromospheres - NASA/ADS
Observations indicating the presence of stellar chromospheres, that is hot envelopes around stars are summarized. Undisputed indicators (called type I) for ...
A chromosphere is the second layer of a star's atmosphere, located above the photosphere and below the solar transition region and corona.
Stellar chromospheres and transition regions contain the moderate temperature (5,000-500,000 K) gas located between the photosphere and corona. These regions ...
Stellar Model Chromospheres and Spectroscopic Diagnostics
Some 35 years ago, the only available observations of stellar chromospheres consisted of solar optical and ultraviolet. (UV) spectra and stellar ...
Stellar and Solar Chromospheres and Attendant Phenomena
The main topic is why chromospheres exist: the warm, extensive outer atmospheres of cool stars, a consequence of nonradiative heating mainly devolving from ...
Stellar chromospheres - NASA ADS
SAO/NASA ADS Astronomy Abstract Service · 1. In most cases studied, temperatures in the stellar upper photosphere inferred from the K-line wings are hotter than ...
Stellar Model Chromospheres and Spectroscopic Diagnostics
The discovery of exoplanets and the desire to understand their atmospheric chemical composition and habitability provides a new rationale for understanding ...
Stellar chromospheres - NASA Technical Reports Server (NTRS)
The interpretation of stellar chromospheric line intensities and widths is discussed, and semiempirical chromospheric models of single stars are reviewed.
Stellar Chromospheric Activity | Living Reviews in Solar Physics
Stellar chromospheres exhibit a wide range of phenomena collectively called activity, stemming largely from the time evolution of their magnetic fields and the ...
Chromospheric activity catalogue of 4454 cool stars
They reported that stellar activity cycles form two distinct branches when plotted as a function of rotation. They classified them as the active and inactive ...
Stellar chromospheres | Space Science Reviews - SpringerLink
Observations indicating the presence of stellar chromospheres, that is hot envelopes around stars are summarized. Undisputed indicators (called type I) for.
Stellar Chromospheric Variability - MDPI
Cool stars with convective envelopes of spectral types F and later tend to exhibit magnetic activity throughout their atmospheres.
Stellar chromospheres - PubMed
Stellar chromospheres. Science. 1966 Mar 25;151(3717):1487-98. doi: 10.1126/science.151.3717.1487. Author. O C Wilson. PMID: 17730078; DOI: 10.1126/science ...
Heating and structure of Stellar Chromospheres | CHROMORAD
In this project the solar chromosphere was studied by means of numerical simulations in comparison with observations. We took advantage of new instruments, ...
Acoustic and magnetic wave heating in stars
... stellar chromospheres. Key words: methods: numerical - stars: chromospheres - stars: coronae - stars: magnetic fields - MHD - waves. 1 Introduction. In the ...
Page 1. Stellar Chromospheres. ASTR691. W10L2. Page 2. Linsky (2017). Page 3. Linsky (2017). “simple” model. (photosphere-only) observations. Page 4 ...
Stellar Chromospheres | Science
ATHAY, R.G., CHALLENGE OF CHROMOSPHERIC PHYSICS - CHROMOSPHERIC PLASMA REVEALS COMPLEX INTERACTIONS OF MAGNETIC HYDRODYNAMIC RADIATIVE + THERMAL FIELDS, ...
Stellar Chromospheric Variability | Encyclopedia MDPI
Chromospheric (magnetic) activity is evidence of the presence of strong and variable magnetic fields. Magnetically active chromospheres are ...
Minicourse on Stellar Activity II: Stellar Chromospheres Jeffrey Linsky
Stellar Chomospheres and. Nonradiative Heating: Outline. • Examples of spectra emitted by stellar chromospheres. • Definitions and assumptions ...