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Special Notice #210: Request for observations of high-mass X-ray binaries

May 19, 2010: Dr. Gordon Sarty, University of Saskatchewan, Canada, requests our continuing assistance in his ongoing observations of High Mass X-ray Binaries (HMXBs). Dr. Sarty provides the following text for the current request:
 

Alert Notice 377: Request extended to observe HMXBs in support of radial velocity observations

May 2, 2008

Dr. Gordon Sarty, University of Saskatchewan, Canada, has requested our continuing assistance (see AAVSO Alert Notices 348 and 354) in his ongoing radial velocity observations of four High Mass X-ray Binaries (HMXBs). From Dr. Sarty:

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484