The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 39 Issue 1
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- Pages.42.2-42.2
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- 2014
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- 1226-2692(pISSN)
Progress Report on Optical Spectroscopy of X-ray selected Intermediate-mass Black Holes
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Kim, Minjin
(Korea Astronomy and Space Science Institute) ;
- Ho, Luis C. (The Observatories of the Carnegie Institution for Science)
- Published : 2014.04.10
Abstract
We present high-resolution optical spectra of newly selected candidates of intermediate-mass black holes. The sample was selected based on the variability and spectral shape in X-ray. The spectra was taken with Magellan 6.5 m Clay Telescope and cover the rest-frame region 3500-10000A. The high spectral resolution (R~4000) of the spectrum allows us to estimate BH masses of the sources. Interestingly, the majority of the sample appears to have broad emission lines. Using this dataset, we will estimate the BH masses and Eddington ratio in order to understand their physical properties.
Keywords