Content of the CorotSky Database
S. Charpinet J. Platzer J. Cuvilo E. Bourrec G. Vauclair D. Toublanc
(LA) (LA) (CESR) (LA) (LA) (CESR)
What is behind CorotSky ?
Objectives of CorotSky :
– Simulate the sky visible by COROT in both seismology and exoplanet channels – Provide specific informations on potential targets in both channels – Provide overall informations (histograms, HR diagrams, …) Optimization of:
• •
(c.f. poster describing the graphical application CorotSky) (The tool CorotSky is being developped by GMV and is the Spanish contribution to COROT)
Target/Field-of-View selection Global planification of observations Seismology Database
• • • •
CorotSky Exoplanet Search Database
• • • • Stars with 12 ≤ V ≤ 16 Centre/Anticentre directions ~10,000,000 stars from cat. BVRI data + identification for ~3,000,000 stars from GBO around principal targets Under construction
The database behind CorotSky →
See the document « Content description of the CorotSky asteroseismology database » available (soon) from the Corotsky web page : http://smsc.cnes.fr/COROT/A_corotsky.htm
Stars brighter than V=9.5 Centre/Anticentre directions ~12,000 stars Large amount of data from catalogs and dedicated GBO Mostly Implemented
The Seismology Database: Data From Catalogues
The Core of the Database :
– Contains all the stars referenced in the CDS/SIMBAD database :
Brighter than V=9.5 Within the 15° cones around the Center / Anticentre directions (Scenario 4) 11,911 stars
Parameter Source
Identifiers RA (2000) DEC (2000)
SIMBAD SIMBAD SIMBAD SIMBAD SIMBAD/HIP SIMBAD SIMBAD HIPPARCOS SIMBAD/GBO
Parameters from Catalogues :
– Main sources: Simbad / Hipparcos – Values, errors, sources
V B-V Spectral Type Proper Motion Parallax Vrad
Teff
Mv
The Seismology Database: Data from Ground Based Observations
Stromgren photometry :
– Observations at Obs. of Sierra Nevada (R. Garrido et al.) – Stars V ≤ 8 (~ 1000 objects; Scenario 4) – Photometric data available from the GAUDI database (E. Solano; LAEFF)
Templogg Mv, Teff, log g, [Fe/H] (R. Garrido, W. Weiss et al.)
High resolution spectroscopy :
– Observations at/with OHP/ELODIE, LaSilla/FEROS, TNG/SARG, … (C. Catala, E. Poretti et al.) – Stars V ≤ 8 (~ 1000 objects; Scenario 4) – Spectra available from the GAUDI database (E. Solano; LAEFF)
Tgmet (C.Soubiran) Mv, Teff, log g, [Fe/H] (OHP, FEROS?, SARG?) Detailed Analysis (P. Magain et al.) Teff, log g, [Fe/H] Ha line wings (C. Van’t Veer) Teff (OHP, FEROS?, SARG?) LSD (C. Catala) Vrad, Vsin i, SB2 (OHP, FEROS, SARG?) if Vsin i > 200 km/s (A.-M. Hubert) Vsin i
The Seismology Database: Adopted Teff, Mv, log g & [Fe/H]
P Method Detailed analysis Ha line wings Literature Stromgren/Templogg Spectroscopy/Tgmet V-I/Allen B-V/Allen Conditions / Comments Only for a few stars 5500 K ≤ Teff ≤ 8500 K Only for a few stars mV ≤ 8 mV ≤ 8; Teff ≤ 8,000 K; V sin i ≤ 30 km/s Not yet available Almost all stars S. Charpinet Source P. Magain et al. C. Van’t Veer et al. C. Soubiran R. Garrido, W. Weiss et al. C. Catala, E. Poretti, C. Soubiran
Teff Adopted
For each star in the database, a value is adopted for the folloqing parameters according to the data available and by order of priority (P) of the method used for the determination.
1 2 3 4 5 6 7
P
Method
Conditions / Comments
Source
MV Adopted
1
2 3 4 5
Literature
Parallax > 10 mas Stromgren/Templogg Spectroscopy/Tgmet Parallax ≤ 10 mas
Only for a few stars
π > 10 mas mV ≤ 8 mV ≤ 8; Teff ≤ 8,000 K; V sin i ≤ 30 km/s 3 mas ≤ π ≤ 10 mas
C. Soubiran
S. Charpinet/Hip. Catalog R. Garrido, W. Weiss et al. C. Catala, E. Poretti, C. Soubiran S. Charpinet/Hip. Catalog
6
Parallax Default
π < 3 mas or no value
S. Charpinet/Hip. Catalog
The Seismology Database: Adopted Teff, Mv, log g & [Fe/H]
P Method Detailed analysis MgI triplet Literature Stromgren/Templogg Spectroscopy/Tgmet Conditions / Comments Only for a few stars Not yet implemented Only for a few stars mV ≤ 8 mV ≤ 8; Teff ≤ 8,000 K; V sin i ≤ 30 km/s C. Soubiran R. Garrido, W. Weiss et al. C. Catala, E. Poretti, C. Soubiran Source P. Magain et al.
log g Adopted
1 2 3 4 5
P
Method
Conditions / Comments
Source
[Fe/H] Adopted
1
2
Detailed analysis
Literature
Only for a few stars
Only for a few stars
P. Magain et al.
C. Soubiran
3
4
Stromgren/Templogg
Spectroscopy/Tgmet
mV ≤ 8
mV ≤ 8; Teff ≤ 8,000 K; V sin i ≤ 30 km/s
R. Garrido, W. Weiss et al.
C. Catala, E. Poretti, C. Soubiran
The Seismology Database: Star Type Catalogues
Stars of specific interest :
– – – –
Primary candidates Variable stars Peculiar stars … Catalogues that define star types in the database
Current status :
– Implementation of the VISAT catalogues (Obs. Vienna; W. Weiss et al.) for the seismology channel 28 referenced startypes Star types in the exoplanet channel are not yet implemented
What Do We Need to Complete the Seismology Database ?
Database updates :
Who: The OMP CorotSky Team When: Every month or so…
2. Mv and Teff values :
Prob: ~75% of the database, Mv relies on the « Parallax by Default » method…
About the same fraction relies on Teff values coming from a B-V/Teff conversion (Allen)… What: Include V-I Results from spectroscopy Additional Ground Based photometry/spectroscopy? Who: Contact: C. Catala
3. What else ?
- Include spectrophotometry - Improve Teff, logg, [Fe/H] using better calibrations for photometry and spectrocopy
1. Lists of star types :
What: Add missing startypes Check catalogue contents Startypes in the Exo fields Who: Each scientist (GI?) is resp. for the catalogue she/he has provided Contact: W. Weiss
Contact: Caroline Soubiran