Pulsating variable stars in the MACHO bulge database: the semiregular variables
Conference
·
OSTI ID:298692
- and others
We review the pulsating stars contained in the top 24 fields of the MACHO bulge database, with special emphasis on the red semireg-ular stars. Based on period, amplitude and color cuts, we have selected a sample of 2000 semireguku variables with 15 < P < 100 days. Their period-luminosity relation is studied, as well ss their spatial distribution. We find that they follow the bar, unlike the RR Lyrae in these fields.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 298692
- Report Number(s):
- UCRL-JC--129160; CONF-9708177--; ON: DE98054671; BR: YN0100000; CNN: NSF AST-8809616; NSF AST-9120005
- Country of Publication:
- United States
- Language:
- English
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