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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T HE S OLAR -S TELLAR S PECTROGRAPH (SSS) P ROJECT R EVIEW JEFFREY HALL LOWELL OBSERVATORY, FLAGSTAFF, AZ
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 P ROJECT T IMELINE 1988199219962000200420082012 Construction/early observing Rebuild 1 Broad survey Solar analog survey Rebuild 2 A/D boundary
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 I NSTRUMENTATION
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 R AW D ATA 1993-20072008- λλ 3858-4012 λλ 5126-8973 with gaps λλ xxxx-xxxx with gaps Usual cadence: Solar3X/week Stellar5-7 nights of bright time per month
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 E XTRACTED S PECTRA
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 HK S PECTRUM E XTRACTION AND A NALYSIS – 1 S log R’ HK ΔF HK
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 HK S PECTRUM E XTRACTION AND A NALYSIS – 2
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 HK S PECTRUM E XTRACTION AND A NALYSIS – 3
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T IME S ERIES - S OLAR
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T IME S ERIES - S TELLAR
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T IME S ERIES - S TELLAR
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 E NSEMBLE B EHAVIOR No unambiguous detection of a stellar Maunder Minimum
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 E NSEMBLE B EHAVIOR General recovery of the usual activity-brightness relationships
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 F UTURE D IRECTIONS
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 F UTURE D IRECTIONS Composite proxies beyond HK yr -1 power
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 C ONNECTING SSS TO MWO – 1
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 C ONNECTING SSS TO MWO – 2 We need a comprehensive linking, with individual observations and time series from other programs included. Case study: the question of HD 3651
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 C ONNECTING SSS TO MWO – 2
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SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 C ONNECTING SSS TO MWO – 2 Principal MWO data compilations available in the literature: > Duncan et al. 1991 ApJS 76 383 > Baliunas et al. 1995 ApJ 438 269 (grand mean S, yearly mean S) MWO time series for select stars > Radick et al 1998 ApJS 118 239 > Lockwood et al 2007 ApJS 171 260 (grand mean S, yearly mean S, individual observations) Data analysis formerly overseen by Donahue (1990s) Data currently curated by Soon
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