Monitoring of Bright Giant Variables requested in support of ground-based spectroscopy and for long-term study
Active Dates: May 30, 2011 – June 1, 2011
Abstract:
Dr. Steve Howell (NASA) and Dr. Travis Rector (University of Alaska, Anchorage) have requested AAVSO observations of several bright giant variable stars of diverse classes. This request is for immediate support of spectroscopic observations to be made at Kitt Peak National Observatory between 2011 May 30 and 2011 June 01 (JD 2455712 - 714). However, observers are encouraged to continue long-term monitoring of these objects. Using the spectroscopy, as well as parallax measurements from Hipparcos and contemporary photometry from the AAVSO, the distance, luminosity, temperature and radius of these stars are determined. The goal of the project is to determine if the surface temperatures and radii of these stars change in a recognizable pattern over long timescales.
Justification:
Spectroscopy is not being obtained, but optical coverage is needed to help understand their behavior.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| R Oph | 7.00 | M |
Cadence: Not Specified Precision: 100 |
Not Requested |
| R CrB | 5.71 | RCB |
Cadence: Not Specified Precision: 100 |
Not Requested |
| Z UMa | 6.20 | SRB |
Cadence: Not Specified Precision: 100 |
Not Requested |
| SX Her | 7.90 | SRD: |
Cadence: Not Specified Precision: 100 |
Not Requested |
| TT Oph | 9.35 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| TX Oph | 9.70 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| AC Her | 6.85 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| R Sct | 4.20 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| R Vir | 6.10 | M |
Cadence: Not Specified Precision: 100 |
Not Requested |
| Y CVn | 4.86 | SRB |
Cadence: Not Specified Precision: 100 |
Not Requested |
| g Her | 4.30 | SRB |
Cadence: Not Specified Precision: 100 |
Not Requested |
| UU Her | 8.65 | SRD |
Cadence: Not Specified Precision: 100 |
Not Requested |
| UZ Oph | 9.93 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| BMAM-V453 | 17.17 | EA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| XX Oph | 8.59 | EA:+ZAND: |
Cadence: Not Specified Precision: 100 |
Not Requested |
| TZ Oph | 12.80 | SRA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| T Lyr | 7.50 | LB |
Cadence: Not Specified Precision: 100 |
Not Requested |
| AD Aql | 11.10 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| AR Sgr | 8.90 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| V5569 Sgr | 9.80 | EA+ZAND+BE |
Cadence: Not Specified Precision: 100 |
Not Requested |
| EP Lyr | 9.90 | RVA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| EU Del | 5.41 | SRB |
Cadence: Not Specified Precision: 100 |
Not Requested |
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. Steve Howell and Dr. Travis Rector; Imported Campaign (Alert Notice #441)