Daily variability of Ceres’ albedo detected by means of radial velocities changes of the reflected sunlight

Vista sencilla de ítem
dc.contributor.authorMolaro, P
dc.contributor.authorLanza, AF
dc.contributor.authorMonaco, L
dc.contributor.authorTosi, F
dc.contributor.authorLo Curto, G
dc.contributor.authorFulle, M
dc.contributor.authorPasquini, L
dc.date.accessioned2016-07-28T19:14:11Z
dc.date.available2016-07-28T19:14:11Z
dc.date.issued2016-05
dc.descriptionIndexación: Web of Sciencees
dc.description.abstractBright features have been recently discovered by Dawn on Ceres, which extend previous photometric and Space Telescope observations. These features should produce distortions of the line profiles of the reflected solar spectrum and therefore an apparent radial velocity variation modulated by the rotation of the dwarf planet. Here we report on two sequences of observations of Ceres performed in the nights of 2015 July 31, August 26 and 27 by means of the high-precision High Accuracy Radial Velocity Planet Searcher (HARPS) spectrograph at the 3.6 m La Silla European Southern Observatory (ESO) telescope. The observations revealed a quite complex behaviour which likely combines a radial velocity modulation due to the rotation with an amplitude of ≈±6 m s−1 and an unexpected diurnal effect. The latter changes imply changes in the albedo of Occator's bright features due to the blaze produced by the exposure to solar radiation. The short-term variability of Ceres’ albedo is on time-scales ranging from hours to months and can both be confirmed and followed by means of dedicated radial velocity observations.es
dc.description.urihttp://mnrasl.oxfordjournals.org/content/458/1/L54
dc.identifier.citationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 458 (1):L54-L58es
dc.identifier.issn0035-8711
dc.identifier.other10.1093/mnrasl/slw017
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/1563
dc.language.isoenes
dc.publisherOxford Univ Presses
dc.subjectTechniques: radial velocitieses
dc.subjectMinor planets, asteroids: individual: Cereses
dc.subjectPlanets and satellites: generales
dc.subjectPlanetary systemses
dc.subjectBRIGHT SPOTSes
dc.subjectSURFACEes
dc.subjectTRANSITes
dc.subjectATLASes
dc.subjectSTARes
dc.subjectICEes
dc.subjectSUNes
dc.titleDaily variability of Ceres’ albedo detected by means of radial velocities changes of the reflected sunlightes
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Molaro_Daily_variability_of_Ceres.pdf
Tamaño:
164.73 KB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO INGLES
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista