Gliese 682
Gliese 682orGJ 682is ared dwarf.It is listed as the 53rd-nearest known star system to theSun,[8]being 16.3light yearsaway from the Earth. Even though it is close by, it is dim with amagnitudeof 10.95 and thus requires atelescopeto be seen. It is located in the constellation ofScorpius,near the bright starTheta Scorpii.[4] The star is in a crowded region of sky near theGalactic Center,and so appears to be near a number of deep-sky objects from the Solar System's perspective. The star is only 0.5 degrees from the much more distant globular clusterNGC 6388.
Search for planets
[edit]| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b(unconfirmed) | >4.4M🜨 | 0.08 | 17.48 | 0.08 | — | — |
| c(unconfirmed) | >8.7M🜨 | 0.18 | 57.32 | 0.10 | — | — |
Two candidate planets were detected orbiting Gliese 682 in 2014, one of which would be in thehabitable zone.[9][10]However, a 2020 study did not find these planets and concluded that theradial velocitysignals were probably caused by stellar activity.[11]
See also
[edit]References
[edit]- ^abcdeVallenari, A.; et al. (Gaia collaboration) (2023)."GaiaData Release 3. Summary of the content and survey properties ".Astronomy and Astrophysics.674:A1.arXiv:2208.00211.Bibcode:2023A&A...674A...1G.doi:10.1051/0004-6361/202243940.S2CID244398875. Gaia DR3 record for this sourceatVizieR.
- ^abcSuissa, Gabrielle; Mandell, Avi M.; Wolf, Eric T.; Villanueva, Geronimo L.; Fauchez, Thomas; Kopparapu, Ravi Kumar (2020)."Dim Prospects for Transmission Spectra of Ocean Earths around M Stars".The Astrophysical Journal.891(1): 58.arXiv:1912.08235.Bibcode:2020ApJ...891...58S.doi:10.3847/1538-4357/ab72f9.S2CID209405220.
- ^abcMartínez-Rodríguez, Héctor; Caballero, José Antonio; Cifuentes, Carlos; Piro, Anthony L.; Barnes, Rory (2019)."Exomoons in the Habitable Zones of M Dwarfs".The Astrophysical Journal.887(2): 261.arXiv:1910.12054.Bibcode:2019ApJ...887..261M.doi:10.3847/1538-4357/ab5640.S2CID204904780.
- ^abcdef"LHS 451 -- High proper-motion Star".Centre de Données astronomiques de Strasbourg.Archivedfrom the original on 2020-02-03.Retrieved2009-12-14.
- ^Boro Saikia, S.; Marvin, C. J.; Jeffers, S. V.; Reiners, A.; Cameron, R.; Marsden, S. C.; Petit, P.; Warnecke, J.; Yadav, A. P. (2018). "Chromospheric activity catalogue of 4454 cool stars. Questioning the active branch of stellar activity cycles".Astronomy and Astrophysics.616:616.arXiv:1803.11123.Bibcode:2018A&A...616A.108B.doi:10.1051/0004-6361/201629518.S2CID118915212.
- ^abcMaldonado, J.; Micela, G.; Baratella, M.; d'Orazi, V.; Affer, L.; Biazzo, K.; Lanza, A. F.; Maggio, A.; González Hernández, J. I.; Perger, M.; Pinamonti, M.; Scandariato, G.; Sozzetti, A.; Locci, D.; Di Maio, C.; Bignamini, A.; Claudi, R.; Molinari, E.; Rebolo, R.; Ribas, I.; Toledo-Padrón, B.; Covino, E.; Desidera, S.; Herrero, E.; Morales, J. C.; Suárez-Mascareño, A.; Pagano, I.; Petralia, A.; Piotto, G.; Poretti, E. (2020). "HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets".Astronomy and Astrophysics.644:A68.arXiv:2010.14867.Bibcode:2020A&A...644A..68M.doi:10.1051/0004-6361/202039478.S2CID225094682.
- ^Hojjatpanah, S.; Figueira, P.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Delgado-Mena, E.; Alibert, Y.; Cristiani, S.; González Hernández, J. I.; Lanza, A. F.; Di Marcantonio, P.; Martins, J. H. C.; Micela, G.; Molaro, P.; Neves, V.; Oshagh, M.; Pepe, F.; Poretti, E.; Rojas-Ayala, B.; Rebolo, R.; Suárez Mascareño, A.; Zapatero Osorio, M. R. (2019). "Catalog for the ESPRESSO blind radial velocity exoplanet survey".Astronomy and Astrophysics.629:A80.arXiv:1908.04627.Bibcode:2019A&A...629A..80H.doi:10.1051/0004-6361/201834729.S2CID199552090.
- ^Reylé, Céline; Jardine, Kevin; Fouqué, Pascal; Caballero, Jose A.; Smart, Richard L.; Sozzetti, Alessandro (30 April 2021). "The 10 parsec sample in the Gaia era".Astronomy & Astrophysics.650:A201.arXiv:2104.14972.Bibcode:2021A&A...650A.201R.doi:10.1051/0004-6361/202140985.S2CID233476431.Data available athttps://gruze.org/10pc/Archived2023-03-12 at theWayback Machine
- ^abTuomi, M.; et al. (2014)."Bayesian search for low-mass planets around nearby M dwarfs - estimates for occurrence rate based on global detectability statistics".Monthly Notices of the Royal Astronomical Society.441(2): 1545.arXiv:1403.0430.Bibcode:2014MNRAS.441.1545T.doi:10.1093/mnras/stu358.S2CID32965505.
- ^"The Habitable Exoplanets Catalog".Planetary Habitability Laboratory.University of Puerto Rico at Arecibo.Archivedfrom the original on 11 February 2018.Retrieved7 October2020.
- ^Feng, Fabo; Butler, R. Paul; Shectman, Stephen A.; Crane, Jeffrey D.; Vogt, Steve; Chambers, John; Jones, Hugh R. A.; Wang, Sharon Xuesong; Teske, Johanna K.; Burt, Jenn; Díaz, Matías R.; Thompson, Ian B. (8 January 2020)."Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and Confirmation of Three Planets around Nine Nearby M Dwarfs".The Astrophysical Journal Supplement Series.246(1): 11.arXiv:2001.02577.Bibcode:2020ApJS..246...11F.doi:10.3847/1538-4365/ab5e7c.S2CID210064560.
