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The SAGA team will periodically release their catalogs as the survey progresses. This is the initial data release and consists of seismic stars within a stripe centered at Galactic longitude 74° with latitudes from about 8° to 20°.
All stars with Strömgren photometry are cross-matched with a list of seismic targets in the Kepler field of view. We detect about 95% of the seismic targets falling in the stripe sampled by SAGA, totaling 1,010 targets (29 dwarfs and 981 giants). Further cross-matching of the sample with optical and infrared broad-band photometry reduces the sample to 989 stars, implying a completeness of 93% for our initial catalogue.
| Bytes | Format | Description |
| 1-7 | A7 | KIC ID |
| 8 | A1 | [*] Flag on KIC ID 1 |
| 10-15 | F6.1 | Frequency of maximum oscillations power νmax (μHz) |
| 17-21 | F5.1 | Uncertainty in νmax (μHz) |
| 23-28 | F6.2 | Large frequency separation Δν (μHz) |
| 30-33 | F4.2 | Uncertainty in Δν (μHz) |
| 35-39 | F5.2 | Strömgren [Fe/H] 2 |
| 41-44 | F4.2 | Uncertainty in Strömgren [Fe/H] |
| 46-49 | I4 | Teff from IRFM (K) |
| 51-53 | I3 | Error in Teff |
| 55-59 | F5.2 | Stellar radius (from seismology, R☉) |
| 61-65 | F5.2 | Upper error in stellar radius |
| 67-71 | F5.2 | Lower error in stellar radius |
| 73-76 | F4.2 | Stellar mass (from seismology, M☉) |
| 78-81 | F4.2 | Upper error in stellar mass |
| 83-86 | F4.2 | Lower error in stellar mass |
| 88-92 | F5.3 | Logarithm of surface gravity (from seismology, cm/s2) |
| 94-98 | F5.3 | Upper error in log(g) |
| 100-104 | F5.3 | Lower error in log(g) |
| 106-114 | F9.7 | Stellar density (ρ☉) 3 |
| 116-124 | F9.7 | Upper error in stellar density |
| 126-134 | F9.7 | Lower error in stellar density |
| 136-139 | I4 | Distance from the Sun (pc) |
| 141-144 | I4 | Upper error in distance |
| 146-149 | I4 | Lower error in distance |
| 151-155 | A5 | Asteroseismic classification 4 |
| 157 | I1 | Metallicity Flag 5 |
| 159 | I1 | Strömgren photometry quality flag 5 |
| 161-165 | F5.3 | Strömgren (b-y) index |
| 167-171 | F5.3 | Strömgren m1 index |
| 173-177 | F5.3 | Strömgren c1 index |
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1 * indicates the presence of a second oscillation signal in the Kepler data, indicating a likely binary. 2 Determined as described in Section 3.2 of Casagrande et al. (2014) for stars having the classification 'RGB,' 'RC,' and/or 'NO'. For stars classified as 'Dwarf' the Strömgren metallicity calibration of Casagrande et al. (2011) has been used (with the exception of 5629080 and 7107778, classified as Dwarf but at the base of the RGB, and for which the same calibration of RGB/RC/NO has been used instead). Notice that [Fe/H] > 0.5 dex should not be trusted. Only stars having both Metallicity and Photometry flags equal to 0 should be trusted (see Note 5). 3 In units of solar density (1.4084 g cm-3). 4 Seismic classification as described in Section 3.4 of Casagrande et al. (2014):
RGB = Certain Red Giant Branch
RC = Certain Red Clump
NO = No reliable distinction between RGB and RC could be made
Dwarf = Dwarf star (from Chaplin et al. 2014)
5 Quality flags identifying stars with most reliable Strömgren metallicities:
Metallicity Flag = 0 if the Strömgren metallicity calibration is applied within the range of applicability
Photometry Flag = 0 if photometric errors of Strömgren uvby magnitudes are below photometric fiducials. Unreliable uvby implies unreliable photometric metallicities.
Stars with both the metallicity and photometry flags set to 0 have more reliable [Fe/H] values.
