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(16) Psyche: A mesosiderite-like asteroid?

Tutkimustuotosvertaisarvioitu

Standard

(16) Psyche : A mesosiderite-like asteroid? / Viikinkoski, M.; Vernazza, P.; Hanuš, J.; Le Coroller, H.; Tazhenova, K.; Carry, B.; Marsset, M.; Drouard, A.; Marchis, F.; Fetick, R.; Fusco, T.; Ďurech, J.; Birlan, M.; Berthier, J.; Bartczak, P.; Dumas, C.; Castillo-Rogez, J.; Cipriani, F.; Colas, F.; Ferrais, M.; Grice, J.; Jehin, E.; Jorda, L.; Kaasalainen, M.; Kryszczynska, A.; Lamy, P.; Marciniak, A.; Michalowski, T.; Michel, P.; Pajuelo, M.; Podlewska-Gaca, E.; Santana-Ros, T.; Tanga, P.; Vachier, F.; Vigan, A.; Warner, B.; Witasse, O.; Yang, B.

julkaisussa: Astronomy and Astrophysics, Vuosikerta 619, L3, 01.11.2018.

Tutkimustuotosvertaisarvioitu

Harvard

Viikinkoski, M, Vernazza, P, Hanuš, J, Le Coroller, H, Tazhenova, K, Carry, B, Marsset, M, Drouard, A, Marchis, F, Fetick, R, Fusco, T, Ďurech, J, Birlan, M, Berthier, J, Bartczak, P, Dumas, C, Castillo-Rogez, J, Cipriani, F, Colas, F, Ferrais, M, Grice, J, Jehin, E, Jorda, L, Kaasalainen, M, Kryszczynska, A, Lamy, P, Marciniak, A, Michalowski, T, Michel, P, Pajuelo, M, Podlewska-Gaca, E, Santana-Ros, T, Tanga, P, Vachier, F, Vigan, A, Warner, B, Witasse, O & Yang, B 2018, '(16) Psyche: A mesosiderite-like asteroid?', Astronomy and Astrophysics, Vuosikerta. 619, L3. https://doi.org/10.1051/0004-6361/201834091

APA

Viikinkoski, M., Vernazza, P., Hanuš, J., Le Coroller, H., Tazhenova, K., Carry, B., ... Yang, B. (2018). (16) Psyche: A mesosiderite-like asteroid? Astronomy and Astrophysics, 619, [L3]. https://doi.org/10.1051/0004-6361/201834091

Vancouver

Viikinkoski M, Vernazza P, Hanuš J, Le Coroller H, Tazhenova K, Carry B et al. (16) Psyche: A mesosiderite-like asteroid? Astronomy and Astrophysics. 2018 marras 1;619. L3. https://doi.org/10.1051/0004-6361/201834091

Author

Viikinkoski, M. ; Vernazza, P. ; Hanuš, J. ; Le Coroller, H. ; Tazhenova, K. ; Carry, B. ; Marsset, M. ; Drouard, A. ; Marchis, F. ; Fetick, R. ; Fusco, T. ; Ďurech, J. ; Birlan, M. ; Berthier, J. ; Bartczak, P. ; Dumas, C. ; Castillo-Rogez, J. ; Cipriani, F. ; Colas, F. ; Ferrais, M. ; Grice, J. ; Jehin, E. ; Jorda, L. ; Kaasalainen, M. ; Kryszczynska, A. ; Lamy, P. ; Marciniak, A. ; Michalowski, T. ; Michel, P. ; Pajuelo, M. ; Podlewska-Gaca, E. ; Santana-Ros, T. ; Tanga, P. ; Vachier, F. ; Vigan, A. ; Warner, B. ; Witasse, O. ; Yang, B. / (16) Psyche : A mesosiderite-like asteroid?. Julkaisussa: Astronomy and Astrophysics. 2018 ; Vuosikerta 619.

Bibtex - Lataa

@article{dcf3a915e5b74977914ed285986dc3cd,
title = "(16) Psyche: A mesosiderite-like asteroid?",
abstract = "Context. Asteroid (16) Psyche is the target of the NASA Psyche mission. It is considered one of the few main-belt bodies that could be an exposed proto-planetary metallic core and that would thus be related to iron meteorites. Such an association is however challenged by both its near- and mid-infrared spectral properties and the reported estimates of its density. Aims. Here, we aim to refine the density of (16) Psyche to set further constraints on its bulk composition and determine its potential meteoritic analog. Methods. We observed (16) Psyche with ESO VLT/SPHERE/ZIMPOL as part of our large program (ID 199.C-0074). We used the high angular resolution of these observations to refine Psyche's three-dimensional (3D) shape model and subsequently its density when combined with the most recent mass estimates. In addition, we searched for potential companions around the asteroid. Results. We derived a bulk density of 3.99 ± 0.26 ± cm-3 for Psyche. While such density is incompatible at the 3-sigma level with any iron meteorites (∼7.8 ± cm-3), it appears fully consistent with that of stony-iron meteorites such as mesosiderites (density ∼4.25 ± cm-3). In addition, we found no satellite in our images and set an upper limit on the diameter of any non-detected satellite of 1460 ± 200 m at 150 km from Psyche (0.2{\%} × RHill, the Hill radius) and 800 ± 200 m at 2000 km (3{\%} × RHill). Conclusions. Considering that the visible and near-infrared spectral properties of mesosiderites are similar to those of Psyche, there is merit to a long-published initial hypothesis that Psyche could be a plausible candidate parent body for mesosiderites.",
keywords = "Methods: observational, Minor planets, asteroids: general, Minor planets, asteroids: individual: (16) Psyche, Techniques: high angular resolution",
author = "M. Viikinkoski and P. Vernazza and J. Hanuš and {Le Coroller}, H. and K. Tazhenova and B. Carry and M. Marsset and A. Drouard and F. Marchis and R. Fetick and T. Fusco and J. Ďurech and M. Birlan and J. Berthier and P. Bartczak and C. Dumas and J. Castillo-Rogez and F. Cipriani and F. Colas and M. Ferrais and J. Grice and E. Jehin and L. Jorda and M. Kaasalainen and A. Kryszczynska and P. Lamy and A. Marciniak and T. Michalowski and P. Michel and M. Pajuelo and E. Podlewska-Gaca and T. Santana-Ros and P. Tanga and F. Vachier and A. Vigan and B. Warner and O. Witasse and B. Yang",
year = "2018",
month = "11",
day = "1",
doi = "10.1051/0004-6361/201834091",
language = "English",
volume = "619",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - (16) Psyche

T2 - A mesosiderite-like asteroid?

AU - Viikinkoski, M.

AU - Vernazza, P.

AU - Hanuš, J.

AU - Le Coroller, H.

AU - Tazhenova, K.

AU - Carry, B.

AU - Marsset, M.

AU - Drouard, A.

AU - Marchis, F.

AU - Fetick, R.

AU - Fusco, T.

AU - Ďurech, J.

AU - Birlan, M.

AU - Berthier, J.

AU - Bartczak, P.

AU - Dumas, C.

AU - Castillo-Rogez, J.

AU - Cipriani, F.

AU - Colas, F.

AU - Ferrais, M.

AU - Grice, J.

AU - Jehin, E.

AU - Jorda, L.

AU - Kaasalainen, M.

AU - Kryszczynska, A.

AU - Lamy, P.

AU - Marciniak, A.

AU - Michalowski, T.

AU - Michel, P.

AU - Pajuelo, M.

AU - Podlewska-Gaca, E.

AU - Santana-Ros, T.

AU - Tanga, P.

AU - Vachier, F.

AU - Vigan, A.

AU - Warner, B.

AU - Witasse, O.

AU - Yang, B.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Context. Asteroid (16) Psyche is the target of the NASA Psyche mission. It is considered one of the few main-belt bodies that could be an exposed proto-planetary metallic core and that would thus be related to iron meteorites. Such an association is however challenged by both its near- and mid-infrared spectral properties and the reported estimates of its density. Aims. Here, we aim to refine the density of (16) Psyche to set further constraints on its bulk composition and determine its potential meteoritic analog. Methods. We observed (16) Psyche with ESO VLT/SPHERE/ZIMPOL as part of our large program (ID 199.C-0074). We used the high angular resolution of these observations to refine Psyche's three-dimensional (3D) shape model and subsequently its density when combined with the most recent mass estimates. In addition, we searched for potential companions around the asteroid. Results. We derived a bulk density of 3.99 ± 0.26 ± cm-3 for Psyche. While such density is incompatible at the 3-sigma level with any iron meteorites (∼7.8 ± cm-3), it appears fully consistent with that of stony-iron meteorites such as mesosiderites (density ∼4.25 ± cm-3). In addition, we found no satellite in our images and set an upper limit on the diameter of any non-detected satellite of 1460 ± 200 m at 150 km from Psyche (0.2% × RHill, the Hill radius) and 800 ± 200 m at 2000 km (3% × RHill). Conclusions. Considering that the visible and near-infrared spectral properties of mesosiderites are similar to those of Psyche, there is merit to a long-published initial hypothesis that Psyche could be a plausible candidate parent body for mesosiderites.

AB - Context. Asteroid (16) Psyche is the target of the NASA Psyche mission. It is considered one of the few main-belt bodies that could be an exposed proto-planetary metallic core and that would thus be related to iron meteorites. Such an association is however challenged by both its near- and mid-infrared spectral properties and the reported estimates of its density. Aims. Here, we aim to refine the density of (16) Psyche to set further constraints on its bulk composition and determine its potential meteoritic analog. Methods. We observed (16) Psyche with ESO VLT/SPHERE/ZIMPOL as part of our large program (ID 199.C-0074). We used the high angular resolution of these observations to refine Psyche's three-dimensional (3D) shape model and subsequently its density when combined with the most recent mass estimates. In addition, we searched for potential companions around the asteroid. Results. We derived a bulk density of 3.99 ± 0.26 ± cm-3 for Psyche. While such density is incompatible at the 3-sigma level with any iron meteorites (∼7.8 ± cm-3), it appears fully consistent with that of stony-iron meteorites such as mesosiderites (density ∼4.25 ± cm-3). In addition, we found no satellite in our images and set an upper limit on the diameter of any non-detected satellite of 1460 ± 200 m at 150 km from Psyche (0.2% × RHill, the Hill radius) and 800 ± 200 m at 2000 km (3% × RHill). Conclusions. Considering that the visible and near-infrared spectral properties of mesosiderites are similar to those of Psyche, there is merit to a long-published initial hypothesis that Psyche could be a plausible candidate parent body for mesosiderites.

KW - Methods: observational

KW - Minor planets, asteroids: general

KW - Minor planets, asteroids: individual: (16) Psyche

KW - Techniques: high angular resolution

U2 - 10.1051/0004-6361/201834091

DO - 10.1051/0004-6361/201834091

M3 - Article

VL - 619

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - L3

ER -