dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?
DESCRIPTION
Dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?. Galactic Radio Arcs originating from the vicinity of the black hole in the galaxy center - plasma streaming along magnetic field lines ?. Same place - X rays due to the collision of the hot plasma - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?](https://reader035.vdocuments.net/reader035/viewer/2022062723/56813fe8550346895daad8df/html5/thumbnails/1.jpg)
Dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?
![Page 2: Dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?](https://reader035.vdocuments.net/reader035/viewer/2022062723/56813fe8550346895daad8df/html5/thumbnails/2.jpg)
Galactic Radio Arcs originating from the vicinityof the black hole in the galaxy center - plasma streaming along magnetic field lines ?
![Page 3: Dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?](https://reader035.vdocuments.net/reader035/viewer/2022062723/56813fe8550346895daad8df/html5/thumbnails/3.jpg)
Same place - X raysdue to the collisionof the hot plasmawith a cold cloud ?
![Page 4: Dust in the giant elliptical galaxy - evidence of collision of several spiral galaxies ?](https://reader035.vdocuments.net/reader035/viewer/2022062723/56813fe8550346895daad8df/html5/thumbnails/4.jpg)
QuickTime™ and aYUV420 codec decompressor
are needed to see this picture.
Recent EIT 195movie
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Supernova in UV in another galaxy
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6שיעור n מעברהקרינה
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Exercise: Syhchrotron emission from a power-law distribution
Exercise: Power of inverse Compton scattering
Exercise: Natural line profile
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תצפיות
הספק
האנרגיה שטף
כיוון
תדר
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ערכים בין קשר
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Q: Isotropic intensity - what is the flux ?
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האנרגיה צפיפות
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התנע שטף
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Q: Isotropic intensity - what is the pressure ?
Q: Sun interior - flux ? pressure ?
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המצב משוואתאיזוטרופית קרינה
מחזירות דפנות
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ובליעה פליטה
ספונטנית פליטה
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Q: Initial intensity =0 ?
Q: Emissivity = 0 ?
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ובליעה מאולצת פליטה
אופטי עומק
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Q: Optical depth - physical sense ?
Q: Dependence on the frame ?
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פיזורופליטה בליעה
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Q: Diff eq ?
Q: If non-isotropic scattering ?
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הקרינה מעבר משוואת
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פתרון
פשוט מקרה
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Q: No initial intensity - what is this ? Small and large optical depth ?
Q: Only Thomson scattering in the Sun. What is the optical depth ?
Q: How long travels light before leaving the Sun ?
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שחור גוף
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שחור גוףהמשך
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תרמית קרינה
בליעה או פליטה
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Q: Maximum intensity from a thermally emitting body ?
Q: Where do the photons come from ?
Q: Emission and absorption lines ?
Q: Line shape (saturation) ?
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חופשיים פוטונים
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Q: Redshifted emission - intensity ?