Twitter Google Share on Facebook spectral type (redirected fromspectral types) Encyclopedia Related to spectral types:HR diagram or spectral class n (Astronomy) any of various groups into which stars are classified according to characteristic spectral lines and bands. The most important classification ...
Types of supernovae Supernovae may be divided into two broad classes, Type I and Type II, according to the way in which they detonate. Type I supernovae may be up to three times brighter than Type II; they also differ from Type II supernovae in that their spectra contain nohydrogen...
A spectrometer allows a real-world measurement of the solar radiation spectrum. You can use it to measure the absorption spectrum of the photovoltaic material and compare this to the incident radiation. Mass Spectrometers Mass spectrometers produce spectra which show intensity as a function of mass-...
spectraexciteLight from the polymerization source which initiates photopolymerization in the material has its determined wavelength. Photoinitiator, such as camphorhinone, excited by light, can be activated with any of the wavelength from its absorption spectrum. To obtain successful photopolymerization, ...
Vibrational spectroscopy is a spectroscopic method of identifying and classifying compounds based on the vibrations of their bonds. Depending on the type, vibrational spectroscopy either measures which frequencies of radiation are absorbed vs. transmitted or which types of light scattering occur. The ...
There are many different types of stars in the Universe, from Protostars to Red Supergiants. They can be categorized according to their mass and temperature. Stars are also classified by their spectra (the elements they absorb). Along with their brightness (apparent magnitude), the spectral ...
Type II Supernovae have hydrogen in their light spectra while Type I Supernovae do not. What causes supernovae? A supernova happens at the end of a star's life cycle as it runs out of fuel. The core begins to cool and the force of gravity is able to take over, pulling the star...
spectroscopy, study of the absorption and emission oflightand otherradiationbymatter, as related to the dependence of these processes on thewavelengthof the radiation. More recently, the definition has been expanded to include the study of the interactions between particles such aselectrons,protons, ...
Type Ib, Type Ic and Type II supernovae, despite showing different elements in their spectra, all explode the same way. Find out how they work on the next page. The Chandrasekhar limit At the age of 20, when most college sophomores are still picking their majors,Harvardstudent Subrahmanyan...
There are three main kinds of spectra that we have explored: continuous spectra, absorption spectra, and emission spectra. A continuous spectrum contains many different colors, or wavelengths, with no gaps. Perfectly white light shined through a prism causes dispersion of the light, and we see a...