TOI-1452 b explained

TOI-1452 b
Discoverer:Cadieux, Charles et al.; International Team
Discovery Site:Université de Montréal
Discovered:June 2022
Extrasolarplanet:yes
Semimajor: AU
Eccentricity:0
Period:11 days
Arg Peri:90
Star:TOI-1452
Mean Radius:1.67±0.07
Mass:4.82±1.3
Density: g/cm3

TOI-1452 b is a confirmed super-Earth exoplanet, possibly a water world, orbiting a red-dwarf star TOI-1452 about 100 light-years away in the Draco constellation.[1] [2] The exoplanet is about 70% larger in diameter than Earth, and roughly five times as massive.[3]

System

The TOI-1452 star system is 99 light-years away from Earth,[4] located in the constellation of Draco. It is a binary pair of dim red dwarf stars separated by only 96 astronomical units (AU). A notable feature of this system is the presence of an exoplanet around one of the stars, designated as TOI-1452 b.[5] It is two M4 dwarf stars that were observed by TESS as a priority, since they are on the cool dwarf list, a list of high-priority orange-red and red dwarf stars, that was uploaded to TESS. It is a flare star, with a flare observed by TESS where the star brightened by 5%. The secondary star is often distinguished from the first with the name "TOI-1760".[6]

Discovery

TOI-1452 b was discovered by an international team led by astronomers from the Université de Montréal,[7] [8] using data from NASA’s Transiting Exoplanet Survey Satellite (TESS).[9] [10] The discovery was first reported in June 2022.

Notes and References

  1. Web site: Program . By Pat Brennan, NASA's Exoplanet Exploration . Discovery Alert: Intriguing New 'Super-Earth' Could Get a Closer Look . 2022-08-27 . Exoplanet Exploration: Planets Beyond our Solar System.
  2. Web site: The Extrasolar Planet Encyclopaedia — TOI-1452 b . . 2022-08-27 .
  3. Web site: Cowing . Keith . 2022-08-24 . TOI-1452 b: An Extrasolar World Covered In Water? . 2022-08-27 . Astrobiology . en-US.
  4. Web site: TOI-1452 Star Information . Stellar Catalog . 2023-09-14.
  5. Web site: Discovery of Ocean World with the CFHT . Canada-France-Hawaii Telescope . 2023-09-14.
  6. Cadieux . Charles . Doyon . René . Plotnykov . Mykhaylo . Hébrard . Guillaume . Jahandar . Farbod . Artigau . Étienne . Valencia . Diana . Cook . Neil J. . Martioli . Eder . Vandal . Thomas . Donati . Jean-François . Cloutier . Ryan . Narita . Norio . Fukui . Akihiko . Hirano . Teruyuki . 2022-08-12 . TOI-1452 b: SPIRou and TESS Reveal a Super-Earth in a Temperate Orbit Transiting an M4 Dwarf . The Astronomical Journal . 164 . 3 . 96 . 10.3847/1538-3881/ac7cea . 0004-6256 . free . 2208.06333 .
  7. News: DePresse . Salle . An extrasolar world covered in water? . 24 August 2022 . . 2 September 2022 .
  8. News: Brennan . Pat . Discovery Alert: Intriguing New 'Super-Earth' Could Get a Closer Look . 24 August 2022 . . 3 September 2022 .
  9. Cadieux. Charles. Doyon. René. Plotnykov. Mykhaylo. Hébrard. Guillaume. Jahandar. Farbod. Artigau. Étienne. Valencia. Diana. Cook. Neil J.. Martioli. Eder. Vandal. Thomas. Donati. Jean-François. Cloutier. Ryan. Narita. Norio. Fukui. Akihiko. Hirano. Teruyuki. Bouchy. François. Cowan. Nicolas B.. Gonzales. Erica J.. Ciardi. David R.. Stassun. Keivan G.. Arnold. Luc. Benneke. Björn. Boisse. Isabelle. Bonfils. Xavier. Carmona. Andrés. Cortés-Zuleta. Pía. Delfosse. Xavier. Forveille. Thierry. Fouqué. Pascal. da Silva. João Gomes. Jenkins. Jon M.. Kiefer. Flavien. Kóspál. Ágnes. Lafrenière. David. Martins. Jorge H. C.. Moutou. Claire. do Nascimento. J.-D.. Ould-Elhkim. Merwan. Pelletier. Stefan. Twicken. Joseph D.. Bouma. Luke G.. Cartwright. Scott. Darveau-Bernier. Antoine. Grankin. Konstantin. Ikoma. Masahiro. Kagetani. Taiki. Kawauchi. Kiyoe. Kodama. Takanori. Kotani. Takayuki. Latham. David W.. Menou. Kristen. Ricker. George. Seager. Sara. Tamura. Motohide. Vanderspek. Roland. Watanabe. 2. Noriharu. TOI-1452 b: SPIRou and TESS Reveal a Super-Earth in a Temperate Orbit Transiting an M4 Dwarf. The Astronomical Journal. American Astronomical Society. 164:96. 3. 27 June 2022 . 12 August 2022. 2208.06333. 10.3847/1538-3881/ac7cea. 2022AJ....164...96C. free. 28pp.
  10. Web site: Anderson . Natali . 2022-08-24 . Water-World Super-Earth Found in Nearby Binary System Sci.News . 2022-08-27 . Sci.News: Breaking Science News . en-US.