E-viri
Odprti dostop
-
Vines, Jose I; Jenkins, James S; Berdiñas, Zaira; Soto, Maritza G; Díaz, Matías R; Alves, Douglas R; Tuomi, Mikko; Wittenmyer, Robert A; Jerome Pitogo de Leon; Peña, Pablo; Lissauer, Jack J; Ballard, Sarah; Bedding, Timothy; Bowler, Brendan P; Horner, Jonathan; Jones, Hugh R A; Kane, Stephen R; Kielkopf, John; Plavchan, Peter; Shporer, Avi; Tinney, C G; Hui Zhang Duncan J Wright; Addison, Brett; Mengel, Matthew W; Okumura, Jack; Samadi-Ghadim, Anya
arXiv.org, 10/2022Paper, Journal Article
Very little is known about the young planet population because the detection of small planets orbiting young stars is obscured by the effects of stellar activity and fast rotation which mask planets within radial velocity and transit data sets. The few planets that have been discovered in young clusters generally orbit stars too faint for any detailed follow-up analysis. Here we present the characterization of a new mini-Neptune planet orbiting the bright (V=9) and nearby K2 dwarf star, HD 18599. The planet candidate was originally detected in TESS light curves from Sectors 2, 3, 29, and 30, with an orbital period of 4.138~days. We then used HARPS and FEROS radial velocities, to find the companion mass to be 25.5\(\pm\)4.6~M\(_\oplus\). When we combine this with the measured radius from TESS, of 2.70\(\pm\)0.05~R\(_\oplus\), we find a high planetary density of 7.1\(\pm\)1.4~g cm\(^{-3}\). The planet exists on the edge of the Neptune Desert and is the first young planet (300 Myr) of its type to inhabit this region. Structure models argue for a bulk composition to consist of 23% H\(_2\)O and 77% Rock and Iron. Future follow-up with large ground- and space-based telescopes can enable us to begin to understand in detail the characteristics of young Neptunes in the galaxy.
Avtor
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.