ÉTYMOLOGIE DU MOT FRAUNHOFER LINES
Named after J. von Fraunhofer (1787–1826), German physicist.
MOTS EN ANGLAIS EN RAPPORT AVEC «FRAUNHOFER LINES»
Fraunhofer lines
fraunhofer
lines
explanation
what
they
significant
chemistry
elements
black
important
solar
spectrum
actually
physics
optics
spectral
named
after
german
physicist
joseph
were
originally
observed
encyclopedia
britannica
astronomical
spectroscopy
absorption
other
star
caused
selective
spectra
called
honor
unaware
this
however
offered
until
decades
fingerprints
atmosphere
call
these
formed
when
visible
light
from
below
surface
answers
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hundred
appearing
against
bright
background
continuous
produced
prominent
shown
together
with
their
corresponding
wavelengths
identification
history
herschel
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «FRAUNHOFER LINES»
Découvrez l'usage de
Fraunhofer lines dans la sélection bibliographique suivante. Des livres en rapport avec
Fraunhofer lines et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
The Cosmic Century: A History of Astrophysics and Cosmology
In a second paper, Fraunhofer measured the wavelengths of what are now
referred to as the Fraunhofer lines in the Solar spectrum using a diffraction
grating, which consisted of a large number of equally spaced thin wires (
Fraunhofer, 1821) ...
2
The Evolving Universe and the Origin of Life: The Search for ...
He observed only a few lines and regarded them as natural borders between
major colors. But Fraunhofer saw and measured as many as 600 dark lines;
these missing parts of the spectrum became known as Fraunhofer lines. He
noticed also ...
Pekka Teerikorpi, Mauri Valtonen, K. Lehto, 2008
3
Competition Science Vision
Some substance can produce both the line spectrum and band spectrum but only
one at a time. 7. Solar spectrum and Fraunhofer lines : Wollastan in 1802
observed that the spectrum of sun is continuous spectrum crossed by a large
number ...
Since those days, the solar spectrum has been well explored and documented (
see the table of principal Fraunhofer lines in Appendix J), and its absorption lines
have been named Fraunhofer lines. The majority of the lines are due to the ...
5
The Sun Kings: The Unexpected Tragedy of Richard Carrington ...
Various scientists then chipped away at the puzzle of the Fraunhofer lines, as
they became known. In the year of Fraunhofer's death, John Her- schel and his
collaborator, William Fox Talbot, realized that each chemical element gave off a ...
6
Encyclopedia of Space and Astronomy
Almost a decade later (in 1823) he observed similar (but different) lines in the
spectra of other stars but left it for other scientists such as ROBERT W. BUN- SEN
and GUSTAV R. KIRCHHOFF to solve the mystery of the “Fraunhofer lines.
7
Report of the Board of Regents
The Fraunhofer's lines to which he alludes are, as is well known, fine dark bands
that furrow the solar spectrum, such as it is, even without the help of a flame. The
nature of these lines was at first very enigmatic. The just described experiment ...
8
Modern Physics for Scientists and Engineers
FIGURE 41.3 The spectrum of the sun, showing Fraunhofer lines. The letters
beneath the spectrum are conventional labels for the Fraunhofer lines.
Absorption spectrum -Ultraviolet Emission spectrum FIGURE 41.4 Absorption
lines, produced ...
9
The New Cosmos: An Introduction to Astronomy and Astrophysics
7.9. The calculated spectral energy distribution FA(0) of a main sequence star
with an effective temperature of Teff = 30 000 K (after R. L. Kurucz, 1979). ( )
Radiation flux including the Fraunhofer lines, which were calculated using a
distribution ...
Albrecht Unsöld, Bodo Baschek, 2001
Solar Spectrum and Fraunhofer Lines When sunlight, collected by a lens is made
incident on the slit of a spectrometer, then a number of dark lines are seen in the
background of bright continuous spectrum. CChhrroommoosspphheerree ...
9 ACTUALITÉS CONTENANT LE TERME «FRAUNHOFER LINES»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
Fraunhofer lines est employé dans le contexte des actualités suivantes.
Here's Where Astronomers Discovered We Are All Star Stuff
And with a photographer's loupe, it's possible to see the absorption spectrum, which are sometimes called Fraunhofer lines, of the Sun. Enlarge. «Popular Science, juin 15»
Spectroscopy: The Key to Humanity's Future in Space
These are called Fraunhofer lines, named after the “father” of astrophysics Joseph Fraunhofer, who discovered these lines in the 19th century. «Universe Today, déc 14»
NASA Satellite to Map Carbon Emissions Using Plant 'Glow'
Frankenberg figured out a way to leverage Fraunhofer lines, meaning that the grating spectrometer for OCO-2 will allow the satellite for the first ... «EE Times, juin 14»
This summer, NASA will begin keeping an eye on your garden
... Propulsion Laboratory in Pasadena, Calif., came in, with their innovative use of an electromagnetic phenomenon known as Fraunhofer lines. «Washington Post, mai 14»
Neil deGrasse Tyson Shows Us How to See Sounds on This Week's …
That enthusiasm makes it easier to digest the somewhat complex scientific explanation behind why the Fraunhofer lines are so pivotal. «The Wire, avril 14»
Introduction to Solar Simulators
... solar radiation is like that of a 5800K blackbody with a fine structure because of absorption in the cool peripheral solar gas (Fraunhofer lines). «Azom.com, avril 14»
Every color of the Sun's rainbow: Why are there so many missing?
Fraunhofer lines, on the Sun's absorption spectrum. The letters correspond to various elements (such as helium, sodium) that cause the lines. «ExtremeTech, oct 13»
Remote sensing of terrestrial chlorophyll fluorescence from space
In reality, Fraunhofer lines are not entirely opaque, and spectral fitting techniques are needed to disentangle the amount of fluorescence from solar light reflected ... «SPIE Newsroom, févr 13»
The New Search for ET
Called Fraunhofer lines, these are naturally occurring gaps or holes within the spectrum of visible light given off by stars. At these frequencies ... «IEEE Spectrum, nov 06»
