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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,

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Presentation on theme: "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,"— Presentation transcript:

1 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

2 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 P ROJECT T IMELINE Construction/early observing Rebuild 1 Broad survey Solar analog survey Rebuild 2 A/D boundary

3 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 I NSTRUMENTATION

4 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 R AW D ATA λλ λλ with gaps λλ xxxx-xxxx with gaps Usual cadence: Solar3X/week Stellar5-7 nights of bright time per month

5 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 E XTRACTED S PECTRA

6 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 HK S PECTRUM E XTRACTION AND A NALYSIS – 1 S  log R’ HK  ΔF HK

7 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 HK S PECTRUM E XTRACTION AND A NALYSIS – 2

8 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 HK S PECTRUM E XTRACTION AND A NALYSIS – 3

9 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T IME S ERIES - S OLAR

10 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T IME S ERIES - S TELLAR

11 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 T IME S ERIES - S TELLAR

12 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 E NSEMBLE B EHAVIOR No unambiguous detection of a stellar Maunder Minimum

13 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 E NSEMBLE B EHAVIOR General recovery of the usual activity-brightness relationships

14 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 F UTURE D IRECTIONS

15 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 F UTURE D IRECTIONS Composite proxies beyond HK yr -1 power

16 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 C ONNECTING SSS TO MWO – 1

17 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

18 SOLAR-STELLAR VARIABILITY WORKSHOP BOULDER, CO 3/19/2014 C ONNECTING SSS TO MWO – 2

19 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 ApJS > Baliunas et al ApJ (grand mean S, yearly mean S) MWO time series for select stars > Radick et al 1998 ApJS > Lockwood et al 2007 ApJS (grand mean S, yearly mean S, individual observations) Data analysis formerly overseen by Donahue (1990s) Data currently curated by Soon


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