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Shape model of asteroid (130) Elektra from optical photometry and disk-resolved images from VLT/SPHERE and Nirc2/Keck

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Shape model of asteroid (130) Elektra from optical photometry and disk-resolved images from VLT/SPHERE and Nirc2/Keck. / Hanuš, J.; Marchis, F.; Viikinkoski, M.; Yang, B.; Kaasalainen, M.

julkaisussa: Astronomy and Astrophysics, Vuosikerta 599, A36, 01.03.2017.

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Hanuš, J. ; Marchis, F. ; Viikinkoski, M. ; Yang, B. ; Kaasalainen, M. / Shape model of asteroid (130) Elektra from optical photometry and disk-resolved images from VLT/SPHERE and Nirc2/Keck. Julkaisussa: Astronomy and Astrophysics. 2017 ; Vuosikerta 599.

Bibtex - Lataa

@article{b5ae7be4a873463f8b752d177980c0df,
title = "Shape model of asteroid (130) Elektra from optical photometry and disk-resolved images from VLT/SPHERE and Nirc2/Keck",
abstract = "Context. Asteroid (130) Elektra belongs to one of the six known triple asteroids in the main belt, so its mass has been reliably determined.Aims. We aim to use all available disk-resolved images of (130) Elektra obtained by the SPHERE instrument at VLT and by the Nirc2 of the Keck telescope together with the disk-integrated photometry to determine its shape model and its size. The volume can be then used in combination with the known mass to derive the bulk density of the primary.Methods. We have applied the All-Data Asteroid Modeling (ADAM) algorithm to the optical disk-integrated data, two disk-resolved images obtained by the SPHERE instrument, and 13 disk-resolved images from the Nirc2 of the Keck telescope. We have also derived the shape model and size of Elektra.Results. We present the shape model, volume-equivalent diameter (199 ± 7 km) and bulk density (1.60 ± 0.13 g cm-3) of the C-type asteroid Elektra.",
keywords = "Methods: numerical, Methods: observational, Minor planets, asteroids: individual: (130) Elektra",
author = "J. Hanuš and F. Marchis and M. Viikinkoski and B. Yang and M. Kaasalainen",
year = "2017",
month = "3",
day = "1",
doi = "10.1051/0004-6361/201629592",
language = "English",
volume = "599",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Shape model of asteroid (130) Elektra from optical photometry and disk-resolved images from VLT/SPHERE and Nirc2/Keck

AU - Hanuš, J.

AU - Marchis, F.

AU - Viikinkoski, M.

AU - Yang, B.

AU - Kaasalainen, M.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Context. Asteroid (130) Elektra belongs to one of the six known triple asteroids in the main belt, so its mass has been reliably determined.Aims. We aim to use all available disk-resolved images of (130) Elektra obtained by the SPHERE instrument at VLT and by the Nirc2 of the Keck telescope together with the disk-integrated photometry to determine its shape model and its size. The volume can be then used in combination with the known mass to derive the bulk density of the primary.Methods. We have applied the All-Data Asteroid Modeling (ADAM) algorithm to the optical disk-integrated data, two disk-resolved images obtained by the SPHERE instrument, and 13 disk-resolved images from the Nirc2 of the Keck telescope. We have also derived the shape model and size of Elektra.Results. We present the shape model, volume-equivalent diameter (199 ± 7 km) and bulk density (1.60 ± 0.13 g cm-3) of the C-type asteroid Elektra.

AB - Context. Asteroid (130) Elektra belongs to one of the six known triple asteroids in the main belt, so its mass has been reliably determined.Aims. We aim to use all available disk-resolved images of (130) Elektra obtained by the SPHERE instrument at VLT and by the Nirc2 of the Keck telescope together with the disk-integrated photometry to determine its shape model and its size. The volume can be then used in combination with the known mass to derive the bulk density of the primary.Methods. We have applied the All-Data Asteroid Modeling (ADAM) algorithm to the optical disk-integrated data, two disk-resolved images obtained by the SPHERE instrument, and 13 disk-resolved images from the Nirc2 of the Keck telescope. We have also derived the shape model and size of Elektra.Results. We present the shape model, volume-equivalent diameter (199 ± 7 km) and bulk density (1.60 ± 0.13 g cm-3) of the C-type asteroid Elektra.

KW - Methods: numerical

KW - Methods: observational

KW - Minor planets, asteroids: individual: (130) Elektra

U2 - 10.1051/0004-6361/201629592

DO - 10.1051/0004-6361/201629592

M3 - Article

VL - 599

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A36

ER -