CoRoT/bright stars

The CoRoT mission (http://smsc.cnes.fr/COROT/index.htm and http://en.wikipedia.org/wiki/COROT) performed high precision photometric stellar monitoring from space. Half of its instrumental field was optimized for bright targets (mv < 9.5).

Data products: large band photometric time series with 32s time sampling, over 90% duty cycle and durations from a few weeks to about 5 months.
Detailed description of the data can be found here or in PDF.

Objects: About 150 stars with 5 .4 < mV < 9.5 have been observed; some several times. They were chosen to scan various spectral type, from G to O-type and evolution stages from the Zero Age Main Sequence to the red giants stages. They are located in the ‘CoRoT eyes’, two cones of ~10 degrees radius centered about (α=6h50’ , δ=0) and (α=6h50’ , δ=0)

Direct access:

• Through the Vizier portal
  • for the Astero field
  • for the Exo field
• Through the IAS Data & Operation center
  • IDOC

The CoRoT mission has been developed and operated by the French space agency CNES, with the contribution of Austria, Belgium, Brazil, ESA (RSSD and Science Programme), Germany and Spain.

Kepler

The Kepler mission (http://kepler.nasa.gov/ and http://en.wikipedia.org/wiki/Kepler_%28spacecraft%29) performed high precision photometric stellar monitoring from space.

Data products: large band photometric time series with either about 1 min (short cadence) or 30 mins (long cadence) time sampling, over 90% duty cycle and durations up to about four years.
Detailed description of the data can be found here.

Objects: about 150 000 stars have been observed continuously. Most of the observed stars are low-mass stars , including main-sequence stars up to the red-giant phase. The Kepler field of view was 105 deg² and choosen in the Cygnus region along the Orion arm centered on galactic coordinates (76.32º,+13.5º) or RA=19h 22m 40s, Dec=+44º 30’ 00’.

Direct access:

• Through the Mikulski Archive for Space Telescopes at Space Telescope Science Institute (MAST)
  • MAST
• Through the Kepler Asteroseismic Science Operations Centre (KASOC)
  • KASOC

Spectroscopic Indicators in a SeisMic Archive (SISMA)

Thousands of high-resolution spectra were taken with the spectrograph HARPS mounted at the 3.6m ESO telescope at La Silla, Chile (Mayor, M. et al. 2003, The Messenger 114, 20) during the ESO Large Programmes LP 182.D-0356 and LP 185.D-0056 as ground-based counterpart of the CoRoT photometric measurements.

Seventy-one CoRoT targets – mainly belonging to the asteroseismic programme, V<9.5 mag – were monitored, mostly in simultaneous mode. Other stars were observed to better characterize the variability classes of the CoRoT targets.

Data products:

• 7103 reduced and normalized high-resolution echelle spectra of 261 stars (3504 observed in EGGS mode, R=80000, and 3599 observed in HAM mode, R=115000) , along with their mean line profiles computed with the LSD software. More than 60% the spectra have signal-to-noise ratio greater than 160.
• Spectroscopic time series of all the 261 observed targets containing radial velocities, projected rotational velocities, activity indices, differential rotation indicators and so on.
• CoRoT light curves of the 71 satellite targets (photometric time series mostly with 32s time sampling, spanning from a few weeks to about 5 months).

Objects: 261 stars covering almost the whole HR diagram and variability classes, from T Tauri to red giants. The visual magnitude spans from 2.7 to 11.5, with 95% of the targets brighter than 9.5 mag.

Direct access:

• Through the SISMA website

Acknowledgements: The CoRoT mission has been developed and operated by the French space agency CNES, with the contribution of Austria, Belgium, Brazil, ESA (RSSD and Science Programme), Germany and Spain.

SDO/HMI

Helioseismic and Magnetic Imager (HMI) is the instrument to observe the oscillation and magnetic field on the solar photosphere. HMI is one of the three instruments on board the Solar Dynamics Observatory (SDO).

Data products: Dopplergram, Continuum filtergram, line-of-sight and vector magnetograms
For further information, see Guide to SDO Data Analysis.

Objects: HMI observes the full-disk Sun at Fe I 6173 Å with a spatial resolution of one arcsec.

Direct access:

• JSOC database
• Latest HMI images
• SDO data analysis guide

Acknowledgements:

• "Courtesy of NASA/SDO and the HMI science team."
• SDO data use policy.
• For the instrument papers see SDO publication list

SoHO-GOLF

The GOLF experiment on the SOHO mission aims to study the internal structure of the sun by measuring the spectrum of global oscillations in the frequency range 10-7 to 10-2 Hz. Both p and g mode oscillations are investigated, with the emphasis on the low order long period waves which penetrate the solar core.

Data products: intensities time series with 10s time sampling (daily files), or calibrated velocity time series over several years (duty cycle at least 96%). Table of solar eigenfrequencies are also available.
Detailed description of the data can be found here.

Objects: The Sun (disc integrated)

Direct access:

• Through the GOLF web site
• Through the IAS Data & Operation center: IDOC

Acknowledgements: "The GOLF instrument onboard SoHO is a cooperative effort of scientists, engineers, and technicians, to whom we are indebted. SoHO is a project of international collaboration between ESA and NASA."

SoHO-MDI

MDI is an instrument onboard the SoHO mission (Sun-Earth L1 orbit). It measures the continuum intensity, Doppler velocity and magnetic field on the disc.

Data products: time series of 1024x1024 images, with a sampling time of 60s. Operations began in 1996 and stopped in 2011.

Object: The Sun

Direct access:

• At JSOC archive
• At MEDOC archive
• see also for pre-processed data at MPS

BISON

The BISON network uses spectrometers with K vapor cells. It performs integrated radial velocity monitoring of the Sun from six remote sites

Data products: integrated radial velocities time series extracted from intensity measurements in the blue and red wings of the solar K line. The time sampling is 40s, a duty-cycle greater than 80%, and data are available continuously since 1978.
Detailed description of the data can be found here.

Objects: The Sun.

Direct access:

• through BISON portal

Gaia-ESO Survey Science Archive

The Gaia-ESO Survey is an ESO public spectroscopic survey conducted in support of the ESA Gaia astrometric satellite.The target stars were observed using the FLAMES spectrograph on the ESO VLT at Paranal in Chile.

Data products: calibrated one- and two-dimensional spectra, and a variety of astrophysical parameters (heliocentric radial velocity, effective temperature, surface gravity, metallicity etc) derived from these spectra.

Objects: about 100,000 stars down to magnitude 19, systematically covering all the major components of the Milky Way, from the halo to star-forming regions and providing the first homogeneous overview of the distributions of kinematics and elemental abundances. For more details, see  the overview article

Direct access:

• Through the Gaia-ESO Survey Science Archive

Acknowledgements: Please note that all use of parameters obtained from the archive in publications and analyses leading to publications must conform with the PI Policy Statement on the use of iDR2 parameters and abundances.

Gaudi

Gaudi is providing spectroscopic data obtained within the COROT Ground-Based bright stars Programme in order to prepare the target selection and scientific exploitation in the CoRoT bright star field..

Data products:

• Spectra of the average photospheric profiles
• Full echelle spectra.

Spectra were obtained on various spectrometers: Elodie, Feros, Sarg, Coralie, Catania-echelle. RQ: Dereddened photometric indices( beta, m0, (b-y)0, c0) are also available at the Gaudi archive.

Objects: About 2000 entries for stars with mV within [5-10] located in the 'CoRoT eyes', the two regions accessible to long term observation with CoRoT: two circles of ~ 10 degrees centered on the equator around alpha=06:50 and alpha=18:50.

Direct access:

• Through the Gaudi web page

Acknowledgements: "Based on GAUDI, the data archive and access system of the ground-based asteroseismology programme of the COROT mission. The system is maintained by the Data Archive (Unit of the CAB (INTA-CSIC) in the framework of the Spanish Virtual Observatory project supported by the Spanish MINECO through grant AYA2011-24052."

Stellar Seismic Indices database

The Stellar Seismic Indices (SSI) data base contains stellar seismic indices of solar-like oscillating stars as well as other indices related to stellar granulation.

Data products: classical seismic indices (e.g., large frequency separation, frequency of the maximum amplitude in the power spectrum, …) and granulation parameters (caracteristic time-scale, power,…).
Detailed description of the data can be found here.

Objects: about 17 000 solar-like pulsators from CoRoT and Kepler data.

Direct access:

• query form