Trans-Atlantic Exoplanet Survey

The Trans-atlantic Exoplanet Survey, or TrES, used three 4-inch (10 cm) telescopes located at Lowell Observatory, Palomar Observatory, and Teide Observatory to locate exoplanets. It was made using the network of small, relatively inexpensive telescopes designed to look specifically for planets orbiting bright stars using the transit method. The array used 4-inch Schmidt telescopes having CCD cameras and automated search routines. The survey was created by David Charbonneau of the Center for Astrophysics, Timothy Brown of the National Center for Atmospheric Research, and Edward Dunham of Lowell Observatory.[1]

The TrES survey is no longer operational.

Discoveries

The TrES project discovered a total of five planets in its years of operation. All were discovered using the transit method. Note that the discovery papers do not use the "b" suffix typically used in extrasolar planet designations. While forms with and without the b are used in the literature, the table here uses the designations assigned by the discoverers.

Star Constellation Right
ascension		 Declination App.
mag.		 Distance
(ly)		 Spectral
type		 Planet Mass
(MJ)		 Radius
(RJ)		 P
(days)		 a
(AU)		 e i
(°)		 Discovery
year
GSC 02652-01324[1]Lyra 19h 04m 09s+36° 37′ 57″11.79512K0V TrES-1b0.611.0813.0300650.03930.13588.22004
GSC 03549-02811(*)[2]Draco 19h 07m 14s+49° 18′ 59″11.41750 ± 30G0V TrES-2b1.1991.2722.470630.03556083.622006
GSC 03089-00929[3]Hercules 17h 52m 07s+37° 32′ 46″12.41300G TrES-31.921.2951.306190.0226?82.152007
GSC 02620-00648(*)[4]Hercules 17h 53m 13s+37° 12′ 42″11.5921400F8 TrES-40.9191.7993.5539450.05091082.862007
GSC 03949-00967[5]Cygnus 20h 20m 53s+59° 26′ 56″13.7181170G TrES-51.7781.2091.48224460.02446?84.5292011
Note: (*) indicates that the planet orbits one of the stars in a binary star system.
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See also

TrES light curves of the Kepler field are available at the NASA Exoplanet Archive

  • List of extrasolar planets

Similar exoplanet discovery projects

Exoplanet hunting spacecraft
  • COROT is an ESA spacecraft launched December 2006.
  • Kepler Mission is a NASA spacecraft launched March 2009.

References
  1. Alonso, Roi; et al. (2004). "TrES-1: The Transiting Planet of a Bright K0V Star". The Astrophysical Journal Letters. 613 (2): L153–L156. arXiv:astro-ph/0408421. Bibcode:2004ApJ...613L.153A. doi:10.1086/425256.
  2. O'Donovan, Francis T.; et al. (2006). "TrES-2: The First Transiting Planet in the Kepler Field". The Astrophysical Journal Letters. 651 (1): L61–L64. arXiv:astro-ph/0609335. Bibcode:2006ApJ...651L..61O. doi:10.1086/509123.
  3. O'Donovan, Francis T.; et al. (2007). "TrES-3: A Nearby, Massive, Transiting Hot Jupiter in a 31 Hour Orbit". The Astrophysical Journal Letters. 663 (1): L37–L40. arXiv:0705.2004. Bibcode:2007ApJ...663L..37O. doi:10.1086/519793.
  4. Mandushev, Georgi; et al. (2007). "TrES-4: A Transiting Hot Jupiter of Very Low Density". The Astrophysical Journal Letters. 667 (2): L195–L198. arXiv:0708.0834. Bibcode:2007ApJ...667L.195M. doi:10.1086/522115.
  5. Mandushev, Georgi; et al. (2011). "TrES-5: A Massive Jupiter-sized Planet Transiting A Cool G-dwarf". The Astrophysical Journal. 741 (2). 114. arXiv:1108.3572. Bibcode:2011ApJ...741..114M. doi:10.1088/0004-637X/741/2/114.
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