Special Notice #186: Request for observations of high-mass X-ray binaries
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AAVSO Special Notice #186
Request
HMXBs
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:
"Please obtain BVRI photometry (or any subset thereof, VI preferred) of the following four HMXBs for the time period of our radial velocity observations to be made with the 72-inch Plaskett telescope at the Dominion Astrophysical Observatory (DAO) from now until June 30.
Alert Notice 348: Observe HMXBs; monitor AR UMa; update on Alert Notice 345
HMXB campaign extended until further notice. It has been updated numerous times and covered in AAVSO Alert Notices 348, 354, and 377, and in AAVSO Special Notices #118, #129, #143, #213, and #220.
April 6, 2007
SUBJECTS:
Alert Notice 354: Extending Request to Observe HMXBs in Support of Radial Velocity Observations
HMXB campaign extended until further notice. It has been updated numerous times and covered in AAVSO Alert Notices 348, 354, and 377, and in AAVSO Special Notices #118, #129, #143, #213, and #220.
Special Notice #220: Request for observations of high-mass X-ray binaries (HMXBs) in support of radial velocity observations
HMXB campaign extended until further notice. - Elizabeth O. Waagen, 17 April 2020
It has been updated numerous times and covered in AAVSO Alert Notices 348, 354, and 377, and in AAVSO Special Notices #118, #129, #143, #213, and #220.