| |
 |
| Paper: |
A Progress Report on the Empirical Determination of the ZZ Ceti Instability Strip |
| Volume: |
372, 15th European Workshop on White Dwarfs |
| Page: |
577 |
| Authors: |
Gianninas, A.; Bergeron, P.; Fontaine, G. |
| Abstract: |
Although the Sloan Digital Sky Survey has permitted the discovery of an increasing number of new ZZCeti stars, recent published analyzes have shown that there are still many relatively bright (V < 17) ZZCeti stars waiting to be found. We will discuss the discovery of several such objects in addition to a number of DA stars in which we detected no photometric variations. These were uncovered as part of an ongoing spectroscopic survey of DA white dwarfs from the McCook & Sion Catalog. By determining the atmospheric parameters of a large sample of DA stars, we were able to identify objects placed within or near the empirical boundaries of the ZZCeti instability strip. By establishing the photometric status of these stars, we can use them in an effort to conclusively pin down the empirical boundaries of the ZZ Ceti instability strip. |
|
|
|
|
|
