Outputs (2)

Testing the Paradigm that Ultra-Luminous X-ray Sources as a Class Represent Accreting Intermediate-Mass Black Holes (2008)
Journal Article
Berghea, C., Weaver, K., Colbert, E., & Roberts, T. (2008). Testing the Paradigm that Ultra-Luminous X-ray Sources as a Class Represent Accreting Intermediate-Mass Black Holes. Astrophysical Journal, 687(1), 471-487. https://doi.org/10.1086/591722

To test the idea that ultraluminous X-ray sources (ULXs) in external galaxies represent a class of accreting intermediate-mass black holes (IMBHs), we have undertaken a program to identify ULXs and a lower luminosity X-ray comparison sample with the... Read More about Testing the Paradigm that Ultra-Luminous X-ray Sources as a Class Represent Accreting Intermediate-Mass Black Holes.

New Hubble Space Telescope imaging of the counterparts to six ultraluminous X-ray sources (2008)
Journal Article
Roberts, T., Levan, A., & Goad, M. (2008). New Hubble Space Telescope imaging of the counterparts to six ultraluminous X-ray sources. Monthly Notices of the Royal Astronomical Society, 387(1), 73-78. https://doi.org/10.1111/j.1365-2966.2008.13293.x

We report the results of new Hubble Space Telescope imaging of the positions of six ultraluminous X-ray sources (ULXs). Using images in three Advanced Camera for Surveys (ACS) filters, we detect good candidate counterparts to four out of six ULXs, wi... Read More about New Hubble Space Telescope imaging of the counterparts to six ultraluminous X-ray sources.