Color and Variability Characteristics of Point Sources in the Faint Sky Variability Survey
| dc.creator | Huber, M. E. | |
| dc.creator | Everett, M. E. | |
| dc.creator | Howell, S. B. | |
| dc.date | 2006-04-20 | |
| dc.date.accessioned | 2026-07-07T11:25:31Z | |
| dc.date.available | 2026-07-07T11:25:31Z | |
| dc.description | We present an analysis of the color and variability characteristics for point sources in the Faint Sky Variability Survey (FSVS). The FSVS cataloged ~23 square degrees in BVI filters from ~16--24 mag to investigate variability in faint sources at moderate to high Galactic latitudes. Point source completeness is found to be >83% for a selected representative sample (V=17.5--22.0 mag, B-V=0.0--1.5) containing both photometric B, V detections and 80% of the time-sampled V data available compared to a basic internal source completeness of 99%. Multi-epoch (10--30) observations in V spanning minutes to years modeled by light curve simulations reveal amplitude sensitivities to 0.015--0.075 mag over a representative V=18--22 mag range. Periodicity determinations appear viable to time-scales of an order 1 day or less using the most sampled fields (~30 epochs). The fraction of point sources is found to be generally variable at 5--8% over V=17.5--22.0 mag. For V brighter than 19 mag, the variable population is dominated by low amplitude (<0.05 mag) and blue (B-V<0.35) sources, possibly representing a population of gamma Doradus stars. Overall, the dominant population of variable sources are bluer than B-V=0.65 and have Main Sequence colors, likely reflecting larger populations of RR Lyrae, SX Phe, gamma Doradus, and W UMa variables. | |
| dc.description | 34 pages, 16 figures, accepted in AJ | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0604449 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0604449 | |
| dc.identifier | Astron.J.132:633-649,2006 | |
| dc.identifier | doi:10.1086/505300 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/195532 | |
| dc.subject | Astrophysics | |
| dc.title | Color and Variability Characteristics of Point Sources in the Faint Sky Variability Survey | |
| dc.type | text |