The disk wind is considered as the main source of the emission spectrum. The radiation generated in the stellar magnetosphere is also taken into account. We showed that variations in the H伪 line profile during eclipses depend sensitively on the wind opening angle. In models with a large ...
Also found in: Encyclopedia. Related to Emission lines: line spectrum, Absorption lines, Emission spectroscopy spectral line n. An isolated bright or dark line in a spectrum produced by emission or absorption of light of a single wavelength. American Heritage® Dictionary of the English Language,...
electromagnetic spectrum.-Look out the window using a spectroscope. What do you see?∙When current is passed through a glass tube filled with hydrogen, a pinkish glow is given off.-Does hydrogen emit a continuous spectrum?-What is this called?-Each element has its own characteristic line-...
Emission spectra refer to the characteristic wavelengths of light emitted by sources like incandescent vapours or gases, showing specific lines on a spectrum due to the atoms, molecules, or ions present in the source. AI generated definition based on: Physics for O.N.C. Courses, 1970 ...
Rapid variations of H-alpha and H-beta emission line intensities were discovered. It is shown that these variations in the spectra of Beta CMi and Gamma Cas are irregular. The following parameters of the emission lines are determined: equivalent widths, maximum intensity, and the intensity ratio...
The emission lines in the spectra are narrow because the transitions occur between distinct energy levels. AES excites all the atoms in a sample simultaneously; therefore, they can be detected simultaneously and this is a major advantage of AES compared to atomic-absorption; high resolution is ...
The constant, 3.289 x 10 15 s -1 , is known as the Rydberg Constant.For the visible lines of the hydrogen spectrum, n f is always 2, and the equation can be rearrangedto the form y = mx + b (the equation of a straight line, where m is the slope and b is the y-intercept):...
Additional series of lines were discovered in the ___ and ___ regions of hydrogen’s line-emission spectrum. - Lyman series – ultraviolet range (cannot see) - Balmer series – visible range - Paschen series – infrared range (cannot see) A mathematical relationship was developed that related...
OBSERVATIONS of the interstellar medium in the 500–1,700 region of the optical spectrum reveals three measurable lines identified as He (584 ), H Ly-β (1,025 ), H Ly-α (1,216 ). The origination of these emissions is dominated by resonance scattering of solar radiation by the ...
Other articles where emission spectrum is discussed: chemical element: Stars and gas clouds: …a pattern is called an emission, or bright-line, spectrum. When light passes through a gas or cloud at a lower temperature than the light source, the gas absor