The Nls1s's Multi-component Fitting Analysis

Active galactic nuclei, or AGN, are peculiar galaxies which have energetic phenomena in the central regions. Some of the most important properties of AGN are that they are star-like objects, have time-variable continuum flux, and the spectra include broad emission lines.The active galactic nucleus divides into QSO, Seyfert galaxies, radio galaxy, Blazar, Liner and so on. Seyfert galaxies divides into seyfert 1 and seyfert 2 galaxy, the two difference lies in the line width. Based on the permit line's width or relative intension, we can get the narrow line seyfert 1 galaxies(NLS1s). NLSls has narrowpermitted line, and FWHM < 2000kms^-1, Fe Ⅱ and other high ionization emission line complexes are unusually strong, but [ OⅢ ] the line is weak.In order to explain the energy origin of Black hole and the multiplicity of AGN, we introduce two models to resole the two problems, namely, the Black-hole accretion model and the unified model. The Black-hole accretion model, the current most popular hypothesis, thought the active galactic nucleus center is a supper massive black hole, the outer of this model is in turn the broad line region(BLR), the dust layer, and the narrow line region(NLR) . thought each kind of active galactic nucleus essentially is same, is only as a result of the angle of view difference, then displays the difference。We used multi-component profiles to model H β and [O Ⅲ] λλ, 4959, 5007 lines for SDSS J143030.22-001115.1, a narrow-line Seyfert 1 galaxy (NLS1) in a sample of 150 NLS1s found within the Sloan Digital Sky Survey (SDSS) Early Data Release (EDR). After subtracting the H β contribution from narrow line region (NLRs), we found that its full width half maximum (FWHM) of broad H β line is larger than...