catalog is a working tool providing all the latest detections and data
announced by professional astronomers, useful to facilitate progress in
exoplanetology. Given the heterogeneity of observational papers, a
uniform catalog (with uniform degree of credibility of planets) is
impossible. Therefore, ultimately, researchers willing to make a
quantitative, scientific, use of the catalog can make their own
judgement on the likelihood of data and detections.
Physical criteria The basic criterion is the mass limit: 60 Jupiter mass.
former standard limits were13 Jupiter mass, based on the deuterium burning
limit, and 30 Jupitter mass, based on formation scenario. However, the mass-density-radius distribution (Hatzes & Rauer, 2015) shows a clear difference between giant planets and stars at 60 Jupier mass.
An additional difficulty comes
from the uncertainty in the mass value. We therefore allow for a 1
sigma uncertainty and chose 60 Mjup + 1 sigma as an upper mass limit.
We thus finally include planets with masses < 60 Jup up to 1 sigma
Confidence criteria Are included planet detections published or submitted to professional journals or announced by professional astronomers in professional conferences.
Categories There are 4 categories of planets, Confirmed, Candidate, Retracted and Controversial. A planet is considered as Confirmed if it is claimed unambiguously in an accepted paper or a professional conference.
Planet data Planet data are the latest data known. They are taken from:
Latest published papers or professional preprints and conferences
First-hand updated data on professional websites. These presently are:
Mass (MJup/MEarth) : mass of the planet soon coming Msini (MJup/MEarth) : minimum mass of the planet due to inclination effect Radius (RJup/Rearth) : radius of the planet Period (day) : orbital period of the planet a (AU) : semi-major axis of the planet orbit e : eccentrity of the planet orbit from 0, circular orbit, to almost 1, very elongated orbit i (deg) : inclination of planet orbit, angle between the planet orbit and the sky plane Ang. dist.(arcsec) : formal star-planet angular separation given by a/Distance Discovery : year of discovery at the time of acceptance of a paper Update : date of the update of data ω (deg) : periapse longitude : angle between the periapse and the line nodes in the orbit plane Tperi (JD) : time of passage at the periapse for eccentric orbits Tconj(JD) : time of the star-planet upper conjunction T0 (JD) : time of passage at the center of the transit light curve for the primary transit T0-sec (JD) : time of passage at the center of the transit light curve for the secondary transit λ Ang. (deg) : sky-projected angle between the planetary orbital spin and the stellar rotational spin (Rossiter-McLaughlin anomaly).
Impact Param b (%) : minimum, in stellar radius units, of distance of
the planet to the stellar center for transiting planets
TVR (JD) : time of zero, increasing, radial velocity (i.e. when the
planet moves toward the observer) for circular orbits K (m/s) :semi-amplitude of the radial velocity curve Tcalc (K) :planet temperature as calculated by authors, based on a planet model Tmeas (K) : planet temperature as measured by authors Hot pt (deg) : longitude of the planet hottest point Ag : Albedo Log(g) : Surface gravity Disc./Det Method : Methods of discovery/detection of the planet (RV, transit, TTV, lensing, astrometry, imaging. The first method is the discovery one.
Mass Meas method : Method of measurement of the planet
mass (RV, astrometry, planet model for direct imaging) Radius Meas method : Method of measurement of the planet radius (transit, planet model for direct imaging) Alternate names : alternatives names of the same planet Molecules : Species detected in the planet
Number of planets in the system :
Stellar data Stellar data (positions, distances, V mag, mass, metallicities etc) are taken from Simbad or from professional papers on exoplanets.
Stellar parameters : Star name : α2000 (hh :mm :ss) : Right Ascension δ2000 (hh :mm :ss) : Declination mV : apparent magnitude in the V band mI : apparent magnitude in the I band mJ : apparent magnitude in the J band mH : apparent magnitude in the H band mK : apparent magnitude in the K band Distance (pc) : distance of the star to the observer Metallicity :
decimal logarithm of the massive elements (« metals ») to hydrogen
ratio in solar units (i.e. Log [(metals/H)star/(metals/H)Sun] ) Mass (Msun) : star mas in solar units Radius (Rsun) : star radius in solar units Sp. Type : stellar spectral type Age (Gy) : stellar age Teff : effective stellar temperature Detected disc : (direct imaging or IR excess) disc detected Magnetic field (Yes/No) : stellar magnetic field detected
Errors When a value is known only by its maximum or minimum its prefix is « < » or « > ». e.g. : < 89.9 or > 0.067.
Planet names For
single planetary companions to a host star, the name is generally NNN
b where NNN is the parent star name. When NNN is not taken from a
standard star catalog (e.g. HD, HIP, 2MASS, …), NNN is the name given by
the discoverers (e.g. CoRoT, Kepler, …). For multi-planet systems,
the planet names are NNN x where x = b, c, d, etc refers to the
chronological order of discovery of the planet. Exceptions are possible, like TrES-1 or planets detected by microlensing. For "free floating" planets, the name is the name given by the discoverers.
Functionalities Are provided, with different on-line filters:
Histogrammes for planet and stellar characteristics
Correlation diagrammes between characteristics
Acknowledgements The functionalities offered would not have been possible without the technical help of the team.