Autor:	W. van Breugel, Hien D. Tran, Spencer A. Stanford, Michael S. Brotherton
Rok vydání:	1999
Předmět:	Physics Luminous infrared galaxy Doubly ionized oxygen Quasar Astrophysics Emission spectrum Galaxy
Zdroj:	Symposium - International Astronomical Union. 194:181-183
ISSN:	0074-1809
Popis:	Many ultraluminous infrared galaxies (ULIRGs) are powered by quasars hidden in the center, but many are also powered by starbursts. A simply diagnostic diagram is proposed that can identify obscured quasars in ULIRGs by their high-ionization emission lines ([O III]λ5007/Hβ ≳ 5), and “warm” IR color (f25/f60≳ 0.25).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e43b9381205a699c7bccabf4670e7306 https://doi.org/10.1017/s0074180900161984 Zobrazit plný text záznamu