(No) dynamical constraints on the mass of the black hole in two ULXs

Challenging times: a re-analysis of NGC 5408 X-1

(2010) M. J. Middleton et al.   MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

The long-term evolution of the accreting millisecond X-ray pulsar Swift J1756.9−2508

(2010) Alessandro Patruno et al.   MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

X-ray reflection in a sample of X-ray bright ultraluminous X-ray sources

(2010) M. D. Caballero-García et al.   MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

A PHOTOIONIZED NEBULA SURROUNDING AND VARIABLE OPTICAL CONTINUUM EMISSION FROM THE ULTRALUMINOUS X-RAY SOURCE IN NGC 5408

(2009) Philip Kaaret et al.   ASTROPHYSICAL JOURNAL

EVIDENCE FOR AN INTERMEDIATE-MASS BLACK HOLE IN NGC 5408 X-1

(2009) Tod E. Strohmayer et al.   ASTROPHYSICAL JOURNAL

Low-metallicity natal environments and black hole masses in ultraluminous X-ray sources

(2009) L. Zampieri et al.   MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

The ultraluminous state

(2009) Jeanette C. Gladstone et al.   MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

HUBBLE SPACE TELESCOPEMONITORING REVEALS A 6.1 DAY PERIOD FOR AN ULTRALUMINOUS X-RAY SOURCE IN NGC 1313

(2008) Jifeng Liu et al.   ASTROPHYSICAL JOURNAL

Models for the Observable System Parameters of Ultraluminous X‐Ray Sources

(2008) N. Madhusudhan et al.   ASTROPHYSICAL JOURNAL

On IC 10 X-1, the Most Massive Known Stellar-Mass Black Hole

(2008) Jeffrey M. Silverman et al.   ASTROPHYSICAL JOURNAL

New Hubble Space Telescope imaging of the counterparts to six ultraluminous X-ray sources

(2008) T. P. Roberts et al.   MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY