CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03
Authors
M. F. A'Hearn
J. Agarwal
+52 more
C. Barbieri
M.A. Barucci
J.L. Bertaux
I. Bertini
D. Bodewits
S. Boudreault
G. Cremonese
V. Da Deppo
B. Davidsson
M. De Cecco
S. Debei
V. Della Corte
J. F. Deller
L. M. Feaga
P. D. Feldman
H. Fischer
S. Fornasier
M. Fulle
B. Geiger
A. Gicquel
O. Groussin
E. Grün
Pedro J. Gutiérrez
C. Güttler
P.H. Hasselmann
M. Hilchenbach
M. Hofmann
K. Hornung
S.F. Hviid
S. Höfner
W. H. Ip
S. Ivanovski
L. Jorda
H.U. Keller
J. Kissel
J. Knollenberg
A. Koch
L. Kolokolova
D. Koschny
J.R. Kramm
E. Kührt
M. Küppers
Y. Langevin
Luisa María Lara
José Juan López-Moreno
S. Merouane
M. Pajola
Rafael Rodrigo Montero
A. Rotundi
H. Sierks
A. J. Steffl
N. Thomas
Publication date
12 July 2018
Publisher
'Oxford University Press (OUP)'
Doi
Cite
Abstract
On 2016 July 03, several instruments onboard ESA's Rosetta spacecraft detected signs of an outburst event on comet 67P, at a heliocentric distance of 3.32 au from the Sun, outbound from perihelion. We here report on the inferred properties of the ejected dust and the surface change at the site of the outburst. The activity coincided with the local sunrise and continued over a time interval of 14-68 min. It left a 10-m-sized icy patch on the surface. The ejected material comprised refractory grains of several hundred microns in size, and sub-micron-sized water ice grains. The high dust mass production rate is incompatible with the free sublimation of crystalline water ice under solar illumination as the only acceleration process. Additional energy stored near the surface must have increased the gas density. We suggest a pressurized sub-surface gas reservoir, or the crystallization of amorphous water ice as possible causes.© 2015 The Authors.The support of the national funding agencies of Germany (DLR, grant 50 QP 1302), France (CNES), Austria, Finland and the ESA Technical Directorate is gratefully acknowledged.Peer Reviewe
Similar works
Full text
Open in the Core reader
Download PDF
Available Versions
Digital.CSIC
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:digital.csic.es:10261/1675...
Last time updated on 21/07/2018