H-alpha and H-beta Standard Stars in M 67 and NGC 752
Abstract
The BYU H-alpha photometric system was defined in Joner and Hintz (2015, AJ, 150, 204) using multiple years of spectroscopic observations. The spectrophotometric methods used to form the new index were also utilized to produce an H-beta index for each of the newly established H-alpha standard stars. We present H-alpha and H-beta filter photometry for stars in the open clusters M 67 and NGC 752 that has been carefully transformed to the standard systems. These stars are suitable to use as standards for transforming CCD observations to the H-alpha and H-beta photometric systems.
- Publication:
-
American Astronomical Society Meeting Abstracts #229
- Pub Date:
- January 2017
- Bibcode:
- 2017AAS...22934309J