v 1 2 1 D ec 1 99 8 A massive object in the core of NGC 5055 ?
نویسنده
چکیده
In a global kinematical study of NGC 5055 using high resolution Fabry-Perot, intriguing spectral line profiles have been observed in the center of the galaxy. These profiles seem to indicate a rapidly rotating disk with a radius near 365 pc and tilted 50 deg with respect to the major axis of the galaxy. In the hypothesis of a massive dark object, a naive keplerian estimate gives a mass around 10 7.2 to 10 7.5 M ⊙. The limited spectral domain of the Fabry-Perot leaves some ambiguity on the exact movement and velocity of this Hα emission. 2-D spectroscopy with a larger spectral range (eg.: TIGRE, OASIS) is thus required.
منابع مشابه
A Massive Object in the Core of NGC 5055 ?
In a global kinematical study of NGC 5055 using high resolution Fabry-Perot interferometry, intriguing spectral line prooles have been observed in the center of the galaxy. These prooles seem to indicate a rapidly rotating disk with a radius near 365 pc and tilted 50 deg with respect to the major axis of the galaxy. In the hypothesis of a massive dark object, a naive keplerian estimate gives a ...
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