REQUEST TO OBSERVE HMXBs IN SUPPORT OF RADIAL VELOCITY OBSERVATIONS
Active Dates: April 1, 2007 – May 31, 2007
Abstract:
Dr. Gordon Sarty has requested assistance in obtaining BVRI photometry for four High Mass X-ray Binaries (HMXBs) for April and May 2007. He will acquire spectroscopy with the DAO 1.85-m Plaskett telescope to measure radial velocities and determine the orbital periods of the HMXBs. Optical photometry will help reveal periods and variations due to mass transfer and other effects.
Justification:
Amateur observations of HMXBs are valuable for finding the true distribution of orbital periods and interpreting spectroscopic data.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| 1H 1936+541 | 10.38 | HMXB |
Cadence: Not Specified Precision: 100 |
Not Requested |
| RX J2030.5+4751 | 9.50 | HMXB: |
Cadence: Not Specified Precision: 100 |
Not Requested |
| NSV 5011 | 3.75 |
Cadence: Not Specified Precision: 100 |
Not Requested | |
| ASAS J110545-5433.5 | 11.53 | EA/SD |
Cadence: Not Specified Precision: 100 |
Not Requested |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
B (Johnson), V (Johnson), r (Sloan), i (Sloan)
Comparison Stars:
No comparison stars provided
Co-Authorship
Observers are not eligible for co-authorship.
Additional Observer Input:
Not provided
Additional Submission Location:
Not provided
Forum URL
N/A
Notes:
Principal Investigator: Dr. Gordon Sarty, University of Saskatchewan, Canada; Imported Campaign (Alert Notice #348)