English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/150101
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

2008 OG19: a highly elongated Trans-Neptunian object

AuthorsFernández Valenzuela, Estela del Mar; Ortiz, José Luis ; Duffard, René D. ; Santos Sanz, Pablo ; Morales, Nicolás
KeywordsTechniques: photometric
Kuiper belt objects: individual: 2008 OG19
Issue Date2016
PublisherBlackwell Publishing
CitationMonthly Notices of the Royal Astronomical Society 456: 2354- 2360 (2016)
AbstractFrom two observing runs during the 2014 summer at the Calar Alto Observatory in Almeŕa (Spain) and at the Sierra Nevada Observatory in Granada (Spain), we were able to derive CCD photometry of the Trans-Neptunian object 2008 OG. We analysed the time series and obtained a double-peaked light curve with a peak-to-valley amplitude of 0.437 ± 0.011 mag and a rotational period of 8.727 ± 0.003 h. This implies that this object is very elongated closely resembling the case of Varuna. The photometry also allowed us to obtain an absolute magnitude in the R band of 4.39 ± 0.07 mag. From this result, we estimated an equivalent diameter of 2008 OG of 619 km using an average albedo for scattered disc objects. Finally, we interpreted the results under the assumption of hydrostatic equilibrium and found a lower limit for the density of 544 kg m. However, a more likely density is 609 ± 4 kg m using an aspect angle of 60°, which corresponds to the most likely configuration for the spin axis with respect to the observer assuming random orientations.© 2015 The Authors.
URIhttp://hdl.handle.net/10261/150101
DOI10.1093/mnras/stv2739
Identifiersdoi: 10.1093/mnras/stv2739
issn: 1365-2966
Appears in Collections:(IAA) Artículos
Files in This Item:
File Description SizeFormat 
IAA_2016_MNRASstv2739.pdf827,24 kBAdobe PDFThumbnail
View/Open
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.