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Дата изменения: Sat Jan 10 17:37:56 1998
Дата индексирования: Sat Sep 11 20:37:09 2010
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Поисковые слова: m 15

Quasar CG 273

One of the Case galaxies appeared to be a distant and bright AGN. This is CG 273 ($\alpha$= 09^h39^m05^s.8, $\delta$= +35$^{\circ}$36'42", m_CG=18 mag). Only one prominent emission line is seen in the wavelength range 3600 - 5500 Å. This broad emission line is centered at $\lambda$4673 Å and its FWHM is 50 Å. We identify it with the MgII doublet $\lambda$2798 Å, the corresponding redshift is 0.670. With the Hubble constant 75 km s^-1Mpc^-1 and q₀=0.5 its absolute blue magnitude M_B= -25 mag, which places CG 273 to the class of quasars. We show its spectrum in Fig. 1.