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

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Presentation on theme: "RR Lyrae Stars for SIM I. Making the B-List II. Obtaining Apparent Mags: (a) Field and (b) Cluster."— Presentation transcript:

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

3 BVIK light curves of Field RRL 60 field RRL in A-List 60 field RRL in A-List BVI: BVI: Most have PE/CCD B,V light curves Most have PE/CCD B,V light curves Have been obtaining I with BGSU 0.5m+CCD Have been obtaining I with BGSU 0.5m+CCD Plan to do all stars w/  > -20° by Dec 2004 Plan to do all stars w/  > -20° by Dec 2004 K: K: 16 stars need K, most in South 16 stars need K, most in South Have queue-scheduled 1.3-m O/IR at CTIO 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: K: Will need to do most clusters: ~15 visits each Will need to do most clusters: ~15 visits each Begin in 2005? (SOAR, LCO, MDM?) Begin in 2005? (SOAR, LCO, MDM?) BVI: BVI: 6 of the 13 RRL-bearing globulars have BVI 6 of the 13 RRL-bearing globulars have BVI 4 need BVI: M13, M30, NGC362, NGC6723 4 need BVI: M13, M30, NGC362, NGC6723  Cen needs BI  Cen needs BI M55 and 47 Tuc need I M55 and 47 Tuc need I

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


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