Photometric observations of Grid Giant Star Survey candidates
| dc.creator | Bizyaev, D. | |
| dc.creator | Smith, V. V. | |
| dc.creator | Arenas, J. | |
| dc.creator | Geisler, D. | |
| dc.date | 2005-02-18 | |
| dc.date.accessioned | 2026-07-07T02:17:00Z | |
| dc.date.available | 2026-07-07T02:17:00Z | |
| dc.description | We compare variability of radial velocity (RV) and brightness for a sample of red giants which were selected as candidates for the Grid Giant Star Survey (GGSS). The purpose of the survey is to select astrometrically stable stars as a reference frame for the future Space Interferometry Mission. We incorporate photometric data taken by ROTSE-I and being taken by ROTSE-III robotic telescopes. Typically 2/3 of all GGSS stars to the north of DEC=-35 were observed 76 and 8 times by ROTSE-I and III respectively in white-light filters. It is shown that photometric stability at the 0.02 mag level cannot be used for a pre-selection of RV-stable stars, and the most important tool remains high-resolution spectroscopy. We deeply thank the ROTSE collaboration providing us observing time at the ROTSE-IIIb telescope. We gratefully acknowledge NASA grant NRA-99-04-OSS-058. | |
| dc.description | The poster was presented at 205 AAS meeting (San Diego, CA, USA). 6 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0502369 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0502369 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/9013 | |
| dc.subject | Astrophysics | |
| dc.title | Photometric observations of Grid Giant Star Survey candidates | |
| dc.type | text |