Qatar Exoplanet Survey

Last updated
Qatar Exoplanet Survey
Survey typeExoplanet search survey
Named afterthe country Qatar
Observatory code H06
Started24, November 2010
Website http://www.qatarexoplanet.org/default.html
[ edit on Wikidata]

The Qatar Exoplanet Survey, also known as QES, is an international exoplanet search survey based in Qatar. Its main goal is to detect exoplanets using the transit method, which is observing the light curve of the host star. [1]

Contents

History

This survey has a site in New Mexico, which was a collaboration to find small planets in the northern sky. [1] Before it found its own planets, it detected WASP-36b [2] and WASP-37b. [3]

Site

There is a telescope with 5 cameras, which are each 400m, which is also located in New Mexico. It has been operating since 2011 which occasional errors. [1]

Results

- In 2011, QES announced the discovery of Qatar-1b, a hot Jupiter that has similar parameters to Jupiter. [4]

- In 2016, QES discovered 3 massive planets, which are 4-6 times more massive than Jupiter. These planets are Qatar-3b, Qatar-4b, which is the largest, and Qatar-5b. [5]

List

This list is incomplete and needs more information.

Light green indicates it orbits one of stars in a binary system.

Star Constellation Right ascension Declination App.

mag.

Distance

(ly)

 Spectral

Type

Planet Mass

(MJ)

 Radius

(RJ)

 Orbital

(d)

 Semimajor

(AU)

 Orbital Eccentricity Inclination

(°)

Discovery

year

Qatar-1 Draco 20h 13m 31.65s+65° 09′ 44.39″12.69609K3V Qatar-1b 1.091.161.420.023430 (fixed)83.472010
Qatar-2 Virgo 13h 50m 37.32s−06° 48′ 14.66″13.30595K5V Qatar-2b 2.491.1441.340.021490 (fixed88.30 ± 0.942011
Qatar-3 Andromeda 23h 56m 36.47s+36° 12′ 46.64″12.932,400G0V Qatar-3b 4.311.0962.510.037830 (fixed)86.8 ± 22017
Qatar-4 Andromeda 0h 19m 26.23s44° 01′ 39.35″13.571,089K1V Qatar-4b 6.11.1351.810.028030 (fixed)87.5 ± 1.62017
Qatar-5 Andromeda 0h 28m 12.94s+42° 03′ 40.84″12.61G2V Qatar-5b 4.321.1072.880.041270 (fixed)88.74 ± 0.872017
Qatar-6 Boötes 14h 48m 50.42s+22° 09′ 09.41″11.5K2V Qatar-6b 0.671.0623.510.04230 (fixed)86.01 ± 0.142017
Qatar-7 Andromeda 23h 54m 03.63s+37° 01′ 18.57″13.13F4V Qatar-7b 1.881.702.030.03520 (fixed)89.0 ± 12019
Qatar-8 Ursa Major 10h 29m 38.96s+70° 31′ 37.50″11.71924G0V Qatar-8b 0.371.2853.710.04740 (fixed)89.29 ± 0.72019
Qatar-9 Ursa Major 10h 42m 59.54s+60° 57′ 50.83″14.02K5V Qatar-9b 1.191.011.540.02340 (fixed)89.23 ± 0.642019
Qatar-10 Draco 18h 57m 47.00s+69° 34′ 15.00″12.801343F7V Qatar-10b 0.7361.5341.6450.04740 (fixed)89.29 ± 0.702019

Related Research Articles

WASP-26 is a yellow main sequence star in the constellation of Cetus.

WASP-25 is a yellow main sequence star in the constellation of Hydra.

WASP-37 is a yellow main sequence star in the constellation of Virgo.

WASP-36 is a yellow main sequence star in the Hydra constellation.

Qatar-1 is an orange main sequence star in the constellation of Draco.

WASP-46 is a G-type main-sequence star about 1240 light-years away. The star is older than Sun and is strongly depleted in heavy elements compared to Sun, having just 45% of solar abundance. Despite its advanced age, the star is rotating rapidly, being spun up by the tides raised by giant planet on close orbit.

WASP-45 is a K-type main-sequence star about 690 light-years away. The star age cannot be well constrained, but it is probably older than Sun. Yet, WASP-45 is enriched in heavy elements compared to Sun, having 240% of solar abundance.

WASP-67 is a K-type main-sequence star about 620 light-years away. The stars age is poorly constrained, but is likely older than the Sun`s at approximately 8.7+5.5
−8.6 billion years. WASP-67 is slightly depleted in heavy elements, having 85% of the solar abundance of iron.

WASP-55 is a G-type main-sequence star about 980 light-years away. The star is much younger than the Sun at approximately 1.1+0.8
−0.6 billion years. WASP-55 is similar to the Sun in concentration of heavy elements.

WASP-54, also known as BD+00 3088, is a binary star system about 825 light-years away. The primary, WASP-54A, is a F-type main-sequence star, accompanied by the red dwarf WASP-54B on a wide orbit. WASP-54 is depleted in heavy elements, having 55% of the solar abundance of iron. The age of WASP-54 is slightly older than the Sun's at 6.9+1.0
−1.9 billion years.

WASP-41 is a G-type main-sequence star. Its surface temperature is 5450±150 K. WASP-41 is similar to the Sun in its concentration of heavy elements, with a metallicity Fe/H index of −0.080±0.090, but is much younger at an age of 2.289±0.077 billion years. The star does exhibit strong starspot activity, with spots covering 3% of the stellar surface.

Qatar-3 is a 12th magnitude star located in the northern constellation Andromeda. It is host to a transiting planet. With a radial velocity of 10.99 km/s, it is drifting away from the Solar System, and is currently located 2,400 light years away based on its annual parallax.

Qatar-4 is a faint K-dwarf star that hosts a planet in the constellation Andromeda. With an apparent magnitude of 13.60, it is impossible to detect with the naked eye, but can be detected with a powerful telescope. Qatar-4 is currently located 1,083 light years away based on parallax.

WASP-103b is an gaseous exoplanet, more specifically a hot Jupiter, located in the Hercules constellation orbiting the star WASP-103. It has an oval shape, similar to that of a rugby ball, thanks to the force of gravity exerted by its star. It is the first exoplanet to have a deformation detected.

References

  1. 1 2 3 Alsubai, K. A.; Parley, N. R.; Bramich, D. M.; Horne, K.; Cameron, A. Collier; West, R. G.; Sorensen, P. M.; Pollacco, D.; Smith, J. C.; Fors, O. (2014-01-09). "The Qatar Exoplanet Survey". Acta Astronomica. 63 (4): 465. arXiv: 1401.1984 . Bibcode:2013AcA....63..465A.
  2. ↑ Smith, A. M. S.; Anderson, D. R.; Collier Cameron, A.; Gillon, M.; Hellier, C.; Lendl, M.; Maxted, P. F. L.; Queloz, D.; Smalley, B.; Triaud, A. H. M. J.; West, R. G. (2012-04-01). "WASP-36b: A New Transiting Planet around a Metal-poor G-dwarf, and an Investigation into Analyses Based on a Single Transit Light Curve". The Astronomical Journal. 143 (4): 81. arXiv: 1110.5313 . Bibcode:2012AJ....143...81S. doi:10.1088/0004-6256/143/4/81. ISSN   0004-6256. S2CID   67754202.
  3. ↑ Simpson, E. K.; Faedi, F.; Barros, S. C. C.; Brown, D. J. A.; Collier Cameron, A.; Hebb, L.; Pollacco, D.; Smalley, B.; Todd, I.; Butters, O. W.; Hébrard, G. (2011-01-01). "WASP-37b: A 1.8 M J Exoplanet Transiting a Metal-poor Star". The Astronomical Journal. 141 (1): 8. arXiv: 1008.3096 . Bibcode:2011AJ....141....8S. doi:10.1088/0004-6256/141/1/8. hdl: 1885/152023 . ISSN   0004-6256. S2CID   20036137.
  4. ↑ Alsubai, K. A.; Parley, N. R.; Bramich, D. M.; West, R. G.; Sorensen, P. M.; Collier Cameron, A.; Latham, D. W.; Horne, K.; Anderson, D. R.; Bakos, G. Á.; Brown, D. J. A. (2011-10-01). "Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star". Monthly Notices of the Royal Astronomical Society. 417 (1): 709–716. arXiv: 1012.3027 . Bibcode:2011MNRAS.417..709A. doi: 10.1111/j.1365-2966.2011.19316.x . ISSN   0035-8711.
  5. ↑ Alsubai, Khalid; Mislis, Dimitris; Tsvetanov, Zlatan I.; Latham, David W.; Bieryla, Allyson; Buchhave, Lars A.; Esquerdo, Gilbert A.; Bramich, D. M.; Pyrzas, Stylianos; Vilchez, Nicolas P. E.; Mancini, Luigi (2017-04-01). "Qatar Exoplanet Survey : Qatar-3b, Qatar-4b, and Qatar-5b" (PDF). The Astronomical Journal. 153 (4): 200. Bibcode:2017AJ....153..200A. doi: 10.3847/1538-3881/aa6340 . ISSN   0004-6256. S2CID   119214858.


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