| タイトル | Spectrophotometry of the galaxies and nebulosity associated with the quasar III Zw 2 |
| 著者（英） | Williams, T. B.; Morton, D. C.; Green, R. F. |
| 著者所属（英） | Hale Observatories|Princeton Univ. Observatory |
| 発行日 | 1978-12-15 |
| 言語 | eng |
| 内容記述 | Results are presented for spectrophotometry of the object III Zw 2, the faint nebulosity to the NW of its nucleus, and two associated galaxies (a normal elliptical and a more luminous late-type spiral). The object III Zw 2 is defined to be a quasar on the basis of its dominant starlike nucleus, redshift, and optical and radio variability. The spectrophotometrically measured redshifts of the two associated galaxies are shown to place III Zw 2 as a member of Zwicky Cluster 0007.7+1056, thus establishing the cosmological origin of the quasar's emission-line redshift of 0.089. It is found that the nebulosity to the NW of the quasar exhibits an emission-line spectrum at the same redshift as the nucleus with an underlying red continuum, that the strength of the forbidden lines relative to the permitted lines is 3 to 4 times greater than in the nucleus, and that the data for the nebulosity are not well fitted by a bremsstrahlung emission spectrum, but are consistent with a spectrum of starlight from an underlying galaxy at the system redshift of 0.089. |
| NASA分類 | ASTRONOMY |
| レポートNO | 79A16904 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/429118 |
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