Computer Science
Scientific paper
Aug 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..370a&link_type=abstract
NOAO Proposal ID #1999B-0370
Computer Science
Scientific paper
Post-asymptotic giant branch (AGB) supergiants of spectral type A-F are theoretically predicted to have a near constant luminosity in old populations. They are also the visually brightest Population II stars, and thus a promising standard candle (Bond 1997). We have undertaken a survey for post-AGB stars which includes a majority of the Galactic globular cluster system and nearly 300 square degrees of the Large Magellanic Cloud (LMC). We propose a search for RR Lyrae stars in the LMC halo, in the same fields as our post-AGB survey. We expect to triple the number of known LMC halo RR Lyrae. With this large sample, we will test stellar evolution models for low-mass, low-metallicity stars by comparing the relative mean brightnesses and total numbers of post-AGBs and RR Lyraes to the theoretically predicted luminosities and lifetimes. We will also test whether the properties of post-AGBs and RR Lyraes in the LMC and Galactic halos are similar, which would support distances inferred from their comparison. We request 10 nights with the Curtis-Schmidt telescope at CTIO.
Alves David
Bond Howard E.
No associations
LandOfFree
RR Lyrae and Post-AGB Stars in Halo Fields of the Large Magellanic Cloud does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with RR Lyrae and Post-AGB Stars in Halo Fields of the Large Magellanic Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RR Lyrae and Post-AGB Stars in Halo Fields of the Large Magellanic Cloud will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1016098