E-viri
Recenzirano
Odprti dostop
-
Watanabe, H.; Kita, H.; Tao, C.; Kagitani, M.; Sakanoi, T.; Kasaba, Y.
Geophysical research letters, 16 November 2018, Letnik: 45, Številka: 21Journal Article
We report narrow band‐filtered imaging observations of the Jovian H3+ 3.4‐μm emission using the IRCS (infrared camera and spectrograph) on the Subaru telescope taken on 25 May 2016. Approximately 1 hr of data was taken at intervals of 45–110 s, with high spatial resolution (~0.2 arcsec) using adaptive optics. In the northern polar region, we found bright patch‐like emissions on the poleward side of the main oval. One of them had a pulsation period of ~10 min. We utilized an H3+ emission model to investigate the response time of the H3+ emission to abrupt and periodic variations of the precipitating electron flux. The model showed that the H3+ emission could pulsate with this timescale due to a modulated flux of the precipitating electrons in the kilo‐electron‐volt to tens of kilo‐electron‐volt energy range. Plain Language Summary We made a movie of the Jovian infrared aurora for the first time. The high spatial resolution images were observed for ~1 hr with the time interval of 45–110 s using the infrared camera of the Subaru‐8‐m telescope. This movie showed that the infrared aurora from the hydrogen ion molecule H3+ had patchy structures on the northern auroral region and a pulsation period of ~10 min. Our model analysis proved that such a fast variation could be driven by the modulation of the kilo‐electron‐volt to tens of kilo‐electron‐volt electrons coming into Jupiter. Key Points We took infrared images of the Jovian H3+ aurora for ~1 hr at time intervals of 45–110 s with the assistance of adaptive optics The aurora images showed a patchy structure on the polar side of the northern main oval with a pulsating interval of ~10 min A model analysis showed that such a fast variation can be driven by the modulated electron flux with energy in the kilo‐electron‐volt to tens of kilo‐electron‐volt range
![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.