172 citations · 1.3k across the 29 of their papers we have counts for
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Spectroscopic monitoring of the luminous blue variable Westerlund1-243 from 2002 to 2009
B. W. Ritchie, J. S. Clark, I. Negueruela +1
The massive post-Main Sequence star W243 in the galactic starburst cluster Westerlund 1 has undergone a spectral transformation from a B2Ia supergiant devoid of emission features i…
A VLT/FLAMES survey for massive binaries in Westerlund 1: I. first observations of luminous evolved stars
B. W. Ritchie, J. S. Clark, I. Negueruela +1
Multiwavelength observations of the young massive cluster Westerlund 1 have revealed evidence for a large number of OB supergiant and Wolf-Rayet binaries. However, in most cases th…
Bolometric luminosity variations in the Luminous Blue Variable AFGL2298
J. S. Clark, P. A. Crowther, V. M. Larionov +3
We characterise the variability in the physical properties of the luminous blue variable AFGL2298 between 1989-2008. In conjunction with published data from 1989-2001, we have unde…
A third red supergiant rich cluster in the Scutum-Crux Arm
J. S. Clark, I. Negueruela, B. Davies +6
We aim to characterise the properties of a third massive, red supergiant dominated galactic cluster. To accomplish this we utilised a combination of near/mid-IR photometry and spec…