HATS-36b

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HATS-36 b
HATS-36 b infrared spectographic, 2018.png
An image of HATS-36 taken using the Kepler Space Telescope
Discovery [1]
Discovery dateJune 12, 2017
Transit
Designations
K2-145 b or EPIC 215969174b
Orbital characteristics [2]
0.0529 (± 0.0011) AU
Eccentricity 0.105 ± 0.028
4.17524 (± 2.1×10−6) day
Inclination 87.57 (± 0.36)°
Star HATS-36
Physical characteristics
Mean radius
1.235 ± 0.043 RJ
Mass 2.79 ± 0.40 MJ

    HATS-36b is a gas giant exoplanet that orbits an F-type star. Its mass is 3.216 Jupiters, it takes 4.2 days to complete one orbit of its star, and is 0.05425 AU from it. It was discovered on June 12, 2017 and was announced in 2018. [3] [4] Its discoverers were 23, namely Daniel Bayliss, Joel Hartman, George Zhou, Gaspar Á. Bakos, Andrew Vanderburg, J. Bento, L. Mancini, S. Ciceri, Rafael Brahm, Andres Jordán, N. Espinoza, M. Rabus, T. G. Tan, K. Penev, W. Bhatti, M. de Val-Borro, V. Suc, Z. Csubry, Th. Henning, P. Sarkis, J. Lázár, I. Papp, P. Sári. [5]

    Contents

    Host star

    The exoplanet HATS-36 b which orbits the star HATS-36 is located about 3,186.5 light-years (977 parsecs ) away from Solar System. It is situated in the constellation of Sagittarius. The host star HATS-36 has apparent magnitude of 14.4, with absolute magnitude of 4.4. The surface temperature is 5970 K with its spectral types of G0V class. In this planetary system, the extra-solar planet orbits around the star HATS-36 every 4.17524 days with its orbital distance of 0.05  AU (7.5 million  km ). [4]

    Discovery

    After the discovery of HATS-36b, it became one of the 25 HATSouth candidates on Campaign 7 of the K2 mission. It detects that the exoplanet, a hot Jupiter-like planet with a mass of 2.790.40 MJ and a radius of 1.2630.045 RJ, transits a solar-type G0V star (V = 14.386) in a 4.17524-day period. The planetary system of HATS-36 is classified as an eclipsing binary system based on a combination of the HATSouth data, the K2 data, and follow-up ground-based photometry and spectroscopy. [5] [6]

    Discussion

    HATS-36b has a typical orbital period of 4.1752379 ± 0.0000021 days and has a density of 2.12 ± 0.20 g/cm 3. Its star is active, which can be seen and manifested in both the variability in the LC and the high jitters in the radial velocity measurements. Due to its high mass compared with the known population of hot Jupiters, HATS-36b lies in a relatively sparsely populated region of the mass-density relationship for gas giant exoplanets. However, its bulk density fits well on the mass-density sequence of the related exoplanets. [5]

    See also

    Related Research Articles

    The Hungarian Automated Telescope Network (HATNet) project is a network of six small fully automated "HAT" telescopes. The scientific goal of the project is to detect and characterize extrasolar planets using the transit method. This network is used also to find and follow bright variable stars. The network is maintained by the Center for Astrophysics | Harvard & Smithsonian.

    K2-138b is a potentially rocky Super-Earth exoplanet orbiting every 2 days around a K1V star. The planet, along with the four others in the system, was found by citizen scientists of the Exoplanet Explorers project on Zooniverse. It was the final planet found in the system and was officially announced on January 8, 2018.

    K2-58 is G-type main-sequence star in the constellation of Aquarius, approximately 596 light-years from Solar System. The star is metal-rich, having 155% of Solar abundance of elements heavier than helium. The star is located in the region allowing to see Venus transiting the Sun for hypothetical observer located in K2-58 system.

    HATS-11b, also known as EPIC 216414930b, is a confirmed exoplanet, or exosolar planet, discovered in 2016 and has been described as similar to Jupiter. It orbits the star HATS-11.

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

    HAT-P-29, also known as Muspelheim since 2019, is a star about 1,040 light-years away. It is a G-type main-sequence star. The star's age of 2.2±1.0 billion years is less than half that of the Sun. HAT-P-29 is slightly enriched in heavy elements, having 35% more iron than the Sun.

    HATS-3 is an F-type main-sequence star 1,380 light-years away. Its surface temperature is 6351±76 K. HATS-3 is relatively depleted in its concentration of heavy elements, with a metallicity Fe/H index of −0.157±0.07, but is slightly younger than the Sun at an age of 3.2+0.6
    −0.4     billion years.

    References

    1. ↑ Bayliss, D.; Hartman, J. D.; Zhou, G.; Bakos, G. Á.; Vanderburg, A.; Bento, J.; Mancini, L.; Ciceri, S.; Brahm, R.; Jordán, A.; Espinoza, N.; Rabus, M.; Tan, T. G.; Penev, K.; Bhatti, W.; de Val-Borro, M.; Suc, V.; Csubry, Z.; Henning, Th.; Sarkis, P.; Lázár, J.; Papp, I.; Sári, P. (2017). "HATS-36b and 24 Other Transiting/Eclipsing Systems from the HATSouth-K2 Campaign 7 Program". The Astronomical Journal. 155 (3): 119. arXiv: 1706.03858 . doi: 10.3847/1538-3881/aaa8e6 . S2CID   119383417.
    2. ↑ "The Extrasolar Planet Encyclopaedia — HATS-36 b". Extrasolar Planets Encyclopaedia .
    3. ↑ "HATS-36 b | New World Atlas - Exoplanet Exploration: Planets Beyond our Solar System". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2018-07-05.
    4. 1 2 "HAT-36 b". www.exoplanetkyoto.org. Retrieved 2018-07-05.
    5. 1 2 3 Bayliss, D.; Hartman, J. D.; Zhou, G.; Bakos, G. Á; Vanderburg, A.; Bento, J.; Mancini, L.; Ciceri, S.; Brahm, R. (2017-06-12). "HATS-36b and 24 Other Transiting/Eclipsing Systems from the HATSouth-K2 Campaign 7 Program". The Astronomical Journal. 155 (3): 119. arXiv: 1706.03858 . doi: 10.3847/1538-3881/aaa8e6 . S2CID   119383417.
    6. ↑ Bayliss, D.; Hartman, J. D.; Zhou, G.; Bakos, G. Á; Vanderburg, A.; Bento, J.; Mancini, L.; Ciceri, S.; Brahm, R. (2018). "HATS-36b and 24 Other Transiting/Eclipsing Systems from the HATSouth-K2 Campaign 7 Program". The Astronomical Journal. 155 (3): 119. arXiv: 1706.03858 . Bibcode:2018AJ....155..119B. doi: 10.3847/1538-3881/aaa8e6 . ISSN   1538-3881. S2CID   119383417.
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