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RR Lyrae Stars for SIM

RR Lyrae Stars for SIM. I. Making the B-List II. Obtaining Apparent Mags: (a) Field and (b) Cluster. B-List. 5-10 more RRc All RRab with: [Fe/H] > -1.0 [Fe/H] < -2.0 (~8 stars) More at disk/halo: [Fe/H] ~ -1 (~5 stars) More at OoI/II: [Fe/H] > -1.5 (20+ stars?)

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RR Lyrae Stars for SIM

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  1. RR Lyrae Stars for SIM I. Making the B-List II. Obtaining Apparent Mags: (a) Field and (b) Cluster

  2. B-List • 5-10 more RRc • All RRab with: • [Fe/H] > -1.0 • [Fe/H] < -2.0 • (~8 stars) • More at disk/halo: • [Fe/H] ~ -1 • (~5 stars) • More at OoI/II: • [Fe/H] > -1.5 • (20+ stars?) • Will prioritize (40-84)

  3. BVIK light curves of Field RRL • 60 field RRL in A-List • BVI: • Most have PE/CCD B,V light curves • Have been obtaining I with BGSU 0.5m+CCD • Plan to do all stars w/ d > -20° by Dec 2004 • K: • 16 stars need K, most in South • Have queue-scheduled 1.3-m O/IR at CTIO

  4. BGSU 0.5m+CCD

  5. Locations of 60 Field RRL

  6. BVIK LCs of Cluster RRL • K: • Will need to do most clusters: ~15 visits each • Begin in 2005? (SOAR, LCO, MDM?) • BVI: • 6 of the 13 RRL-bearing globulars have BVI • 4 need BVI: M13, M30, NGC362, NGC6723 • w Cen needs BI • M55 and 47 Tuc need I

  7. BVI data on RRL in Globulars • Obtained w/ CTIO 0.9-m & LCO 40”: • w Cen: 66 visits in BI … done! • NGC 362: 25 visits in BVI … done? • 47 Tuc: 20 visits in I … done? • NGC 6732: 7 visits in BVI … needs more • Time on CTIO 0.9-m to continue in Feb ‘04 • Will do photometry in Summer 2004 • Propose to CTIO 0.9-m to do M30 & M55? • Propose to WIYN 0.9-m to do M13??

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