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- Doppler_imaging abstract "Inhomogeneous structures on stellar surfaces, i.e. temperature differences, chemical composition or magnetic fields, create characteristic distortions in the spectral lines due to the Doppler effect. These distortions will move across spectral line profiles due to the stellar rotation. The technique to reconstruct these structures on the stellar surface is called Doppler-imaging, often based on the Maximum Entropy image reconstruction to find the stellar image. This technique gives the smoothest and simplest image that is consistent with observations.To understand the magnetic field and activity on stars studies of the Sun is not sufficient, therefore studies of other stars are necessary. Periodic changes in brightness have long been observed in stars which indicate cooler or brighter starspots on the surface. These spots are larger than the ones on the Sun, covering up to 20% of the star. Spots with similar size as the ones on the Sun would hardly give rise to changes in intensity. In order to understand the magnetic field structure of a star it is not enough to know that spots exist, their location and extent are also important.".
- Doppler_imaging wikiPageExternalLink 1983PASP...95..565V.
- Doppler_imaging wikiPageExternalLink 1987ApJ...321..496V.
- Doppler_imaging wikiPageExternalLink 1997akst.book.....S.
- Doppler_imaging wikiPageExternalLink 2001A%26A...379L..30K.
- Doppler_imaging wikiPageExternalLink 2002AN....323..309S.
- Doppler_imaging wikiPageExternalLink 2005LRSP....2....8B.
- Doppler_imaging wikiPageExternalLink 2005oasp.book.....G.
- Doppler_imaging wikiPageExternalLink imaging.html.
- Doppler_imaging wikiPageID "17242477".
- Doppler_imaging wikiPageRevisionID "591603371".
- Doppler_imaging hasPhotoCollection Doppler_imaging.
- Doppler_imaging subject Category:Doppler_effects.
- Doppler_imaging subject Category:Stellar_astronomy.
- Doppler_imaging type Consequence111410625.
- Doppler_imaging type DopplerEffects.
- Doppler_imaging type Phenomenon100034213.
- Doppler_imaging type PhysicalEntity100001930.
- Doppler_imaging type Process100029677.
- Doppler_imaging comment "Inhomogeneous structures on stellar surfaces, i.e. temperature differences, chemical composition or magnetic fields, create characteristic distortions in the spectral lines due to the Doppler effect. These distortions will move across spectral line profiles due to the stellar rotation. The technique to reconstruct these structures on the stellar surface is called Doppler-imaging, often based on the Maximum Entropy image reconstruction to find the stellar image.".
- Doppler_imaging label "Doppler imaging".
- Doppler_imaging sameAs m.043r6w9.
- Doppler_imaging sameAs Q5297353.
- Doppler_imaging sameAs Q5297353.
- Doppler_imaging sameAs Doppler_imaging.
- Doppler_imaging wasDerivedFrom Doppler_imaging?oldid=591603371.
- Doppler_imaging isPrimaryTopicOf Doppler_imaging.