DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Junhan | ko |
dc.contributor.author | Ishiguro, Masateru | ko |
dc.contributor.author | Hanayama, Hidekazu | ko |
dc.contributor.author | Hasegawa, Sunao | ko |
dc.contributor.author | Usui, Fumihiko | ko |
dc.contributor.author | Yanagisawa, Kenshi | ko |
dc.contributor.author | Sarugaku, Yuki | ko |
dc.contributor.author | Watanabe, Jun-ichi | ko |
dc.contributor.author | Yoshida, Michitoshi | ko |
dc.date.accessioned | 2023-11-04T07:03:43Z | - |
dc.date.available | 2023-11-04T07:03:43Z | - |
dc.date.created | 2023-11-03 | - |
dc.date.created | 2023-11-03 | - |
dc.date.issued | 2012-02 | - |
dc.identifier.citation | ASTROPHYSICAL JOURNAL LETTERS, v.746, no.1 | - |
dc.identifier.issn | 2041-8205 | - |
dc.identifier.uri | http://hdl.handle.net/10203/314236 | - |
dc.description.abstract | An inner main-belt asteroid, P/2010 A2, was discovered on 2010 January 6. Based on its orbital elements, it is considered that the asteroid belongs to the Flora collisional family, where S-type asteroids are common, while showing a comet-like dust tail. Although analysis of images taken by the Hubble Space Telescope and Rosetta spacecraft suggested that the dust tail resulted from a recent head-on collision between asteroids, an alternative idea of ice sublimation was suggested based on the morphological fitting of ground-based images. Here, we report a multiband observation of P/2010 A2 made on 2010 January with a 105 cm telescope at the Ishigakijima Astronomical Observatory. Three broadband filters, g', R-c, and I-c, were employed for the observation. The unique multiband data reveal that the reflectance spectrum of the P/2010 A2 dust tail resembles that of an Sq-type asteroid or that of ordinary chondrites rather than that of an S-type asteroid. Due to the large error of the measurement, the reflectance spectrum also resembles the spectra of C-type asteroids, even though C-type asteroids are uncommon in the Flora family. The reflectances relative to the g' band (470 nm) are 1.096 +/- 0.046 at the R-c band (650 nm) and 1.131 +/- 0.061 at the I-c band (800 nm). We hypothesize that the parent body of P/2010 A2 was originally S-type but was then shattered upon collision into scattering fresh chondritic particles from the interior, thus forming the dust tail. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | MULTIBAND OPTICAL OBSERVATION OF THE P/2010 A2 DUST TAIL | - |
dc.type | Article | - |
dc.identifier.wosid | 000300323500011 | - |
dc.identifier.scopusid | 2-s2.0-84863076031 | - |
dc.type.rims | ART | - |
dc.citation.volume | 746 | - |
dc.citation.issue | 1 | - |
dc.citation.publicationname | ASTROPHYSICAL JOURNAL LETTERS | - |
dc.identifier.doi | 10.1088/2041-8205/746/1/L11 | - |
dc.contributor.localauthor | Kim, Junhan | - |
dc.contributor.nonIdAuthor | Ishiguro, Masateru | - |
dc.contributor.nonIdAuthor | Hanayama, Hidekazu | - |
dc.contributor.nonIdAuthor | Hasegawa, Sunao | - |
dc.contributor.nonIdAuthor | Usui, Fumihiko | - |
dc.contributor.nonIdAuthor | Yanagisawa, Kenshi | - |
dc.contributor.nonIdAuthor | Sarugaku, Yuki | - |
dc.contributor.nonIdAuthor | Watanabe, Jun-ichi | - |
dc.contributor.nonIdAuthor | Yoshida, Michitoshi | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | comets: general | - |
dc.subject.keywordAuthor | comets: individual (P/2010 A2) | - |
dc.subject.keywordAuthor | minor planets, asteroids: general | - |
dc.subject.keywordPlus | WATER-ICE | - |
dc.subject.keywordPlus | SPECTROSCOPIC SURVEY | - |
dc.subject.keywordPlus | COMETS | - |
dc.subject.keywordPlus | DEBRIS | - |
dc.subject.keywordPlus | TRAIL | - |
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