Extending Request to Observe HMXBs in Support of Radial Velocity Observations
Active Dates: Aug. 13, 2007 – Sept. 30, 2007
Abstract:
Dr. Gordon Sarty from the University of Saskatchewan has requested assistance from AAVSO observers in obtaining IVBR photometry for four High Mass X-ray Binaries (HMXBs) to support his spectroscopic observations with the DAO 1.85-m Plaskett telescope. The goal is to determine the orbital periods of the HMXBs and understand variations due to mass transfer, pulsations, and other effects.
Justification:
The goal is to determine the orbital periods of the HMXBs. Optical photometry will also reveal other periods and variations due to mass transfer, pulsations, and other effects. The availability of photometry will be very valuable for interpreting the spectroscopic data.
Requested Data Types:
Photometry, Spectroscopy
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| 1H 1936+541 | 10.38 | HMXB |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
| RX J2030.5+4751 | 9.50 | HMXB: |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
| NSV 5011 | 3.75 |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
|
| ASAS J110545-5433.5 | 11.53 | EA/SD |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
No photometry filters provided
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; Imported Campaign (Alert Notice #354)