Search filters

List of works by Hans Rickman

67P/Churyumov-Gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS

scientific article published in Astronomy and Astrophysics

A Monte Carlo estimate of the fraction of comets developing into sizeable asteroidal bodies

article

A Monte Carlo investigation of Jovian perturbations on short-period comet orbits

A catalog of observed nuclear magnitudes of Jupiter family comets

scientific article published in Astronomy and Astrophysics

A collision in 2009 as the origin of the debris trail of asteroid P/2010 A2

scientific article

A keplerian method to estimate perturbations in the restricted three-body problem

article

A kinetic model of gas flow in a porous cometary mantle

A large dust/ice ratio in the nucleus of comet 9P/Tempel 1

scientific article published in Nature

A mini outburst from the nightside of comet 67P/Churyumov-Gerasimenko observed by the OSIRIS camera on Rosetta

scientific article published in Astronomy and Astrophysics

A three-dimensional modelling of the layered structure of comet 67P/Churyumov-Gerasimenko

scientific article

Acceleration of individual, decimetre-sized aggregates in the lower coma of comet 67P/Churyumov–Gerasimenko

scholarly article

Algorithms for Stellar Perturbation Computations on Oort Cloud Comets

An Extended CO Source around Comet 29P/Schwassmann–Wachmann 1

Are fractured cliffs the source of cometary dust jets? Insights from OSIRIS/Rosetta at 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Asteroids in cometary orbits

scientific article

Aswan site on comet 67P/Churyumov-Gerasimenko: Morphology, boulder evolution, and spectrophotometry

scientific article published in Astronomy and Astrophysics

Bilobate comet morphology and internal structure controlled by shear deformation

CHOMIK: a multi-method approach for studying Phobos

Changes in the physical environment of the inner Coma of 67P/Churyumov-Gerasimenko with decreasing heliocentric distance

scientific article published in Astronomical Journal

Chaotic dynamics and Monte Carlo modelling

article

Characterization of OSIRIS NAC filters for the interpretation of multispectral data of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Characterization of dust aggregates in the vicinity of the Rosetta spacecraft

scientific article

Characterization of the Abydos region through OSIRIS high-resolution images in support of CIVA measurements

scientific article published in Astronomy and Astrophysics

Comet 46P/Wirtanen, the target of the Rosetta mission

Comet 67P/Churyumov-Gerasimenko: Constraints on its origin from OSIRIS observations

scientific article published in Astronomy and Astrophysics

Comet P/Wirtanen, summary of observational data

article by L. Jorda & Hans Rickman published March 1995 in Planetary and Space Science

Cometary Dynamics

article

Cometary impact rates on the Moon and planets during the late heavy bombardment

scientific article published in Astronomy and Astrophysics

Cometary science. Dust measurements in the coma of comet 67P/Churyumov-Gerasimenko inbound to the Sun.

scientific article published on January 2015

Cometary science. The morphological diversity of comet 67P/Churyumov-Gerasimenko

scientific article published on January 2015

Comets

scholarly article (December 1993)

Comets

scholarly article

Comets as collisional fragments of a primordial planetesimal disk

scientific article published in Astronomy and Astrophysics

Comparative study of water ice exposures on cometary nuclei using multispectral imaging data

scientific article

Constraints on cometary surface evolution derived from a statistical analysis of 67P’s topography

scientific article

Decimetre-scaled spectrophotometric properties of the nucleus of comet 67P/Churyumov–Gerasimenko from OSIRIS observations

scientific article

Deep Impact observations by OSIRIS onboard the Rosetta spacecraft

scientific article

Detection of exposed H2O ice on the nucleus of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Determining the geotechnical properties of planetary regolith using Low Velocity Penetrometers

Distance determination method of dust particles using Rosetta OSIRIS NAC and WAC data

Distribution of long-period comets: comparison between simulations and observations

scientific article published in Astronomy and Astrophysics

Dust mass distribution around comet 67P/Churyumov–Gerasimenko determined via parallax measurements using Rosetta's OSIRIS cameras

scientific article

Dust particle impacts during the Giotto encounter with comet Grigg–Skjellerup

scientific article published in Nature

Dynamical Features of the Oort Cloud Comets

E-type asteroid (2867) Steins as imaged by OSIRIS on board Rosetta.

scientific article

Evolution of the dust size distribution of comet 67p/Churyumov-Gerasimenko from 2.2 au to perihelion

scientific article published in the Astrophysical Journal

Exposed bright features on the comet 67P/Churyumov–Gerasimenko: distribution and evolution

scientific article published in Astronomy and Astrophysics

Fractures on comet 67P/Churyumov-Gerasimenko observed by Rosetta/OSIRIS

scholarly article

From the Oort cloud to observable short-period comets -- I. The initial stage of cometary capture

scientific article

Gaia and the new comets from the Oort cloud

Gas flow and dust acceleration in a cometary Knudsen layer

Gas outflow and dust transport of comet 67P/Churyumov–Gerasimenko

scientific article

Geologic mapping of the Comet 67P/Churyumov–Gerasimenko's Northern hemisphere

scientific article

Geological map and stratigraphy of asteroid 21 Lutetia

article by Matteo Massironi et al published June 2012 in Planetary and Space Science

Geomorphological and spectrophotometric analysis of Seth's circular niches on comet 67P/Churyumov–Gerasimenko using OSIRIS images

scientific article

Geomorphological mapping of comet 67P/Churyumov–Gerasimenko’s Southern hemisphere

scientific article

Geomorphology and spectrophotometry of Philae’s landing site on comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Geomorphology of the Imhotep region on comet 67P/Churyumov-Gerasimenko from OSIRIS observations

scientific article published in Astronomy and Astrophysics

Gravitational scattering of stars and clusters and the heating of the Galactic disk

scientific article published in Astronomy and Astrophysics

Gravitational slopes, geomorphology, and material strengths of the nucleus of comet 67P/Churyumov-Gerasimenko from OSIRIS observations

scientific article published in Astronomy and Astrophysics

Highlights from the first year of Odin observations

scientific article published in Astronomy and Astrophysics

ISPY-NACO Imaging Survey for Planets around Young stars

scientific article

Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System

scientific article (publication date: 27 October 2011)

Injection of Oort Cloud comets: the fundamental role of stellar perturbations

Insolation, erosion, and morphology of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Interpretation of thermal emission. I. The effect of roughness for spatially resolved atmosphereless bodies

scholarly article

Investigating the physical properties of outbursts on comet 67P/Churyumov–Gerasimenko

scientific article

Large heterogeneities in comet 67P as revealed by active pits from sinkhole collapse

scientific article

Large-scale dust jets in the coma of 67P/Churyumov-Gerasimenko as seen by the OSIRIS instrument onboard Rosetta

scientific article published in Astronomy and Astrophysics

Long-term effects of the Galactic tide on cometary dynamics

article

Long-term evolution of Oort Cloud comets: capture of comets

scholarly article

Long-term monitoring of comet 67P/Churyumov–Gerasimenko’s jets with OSIRIS onboard Rosetta

scientific article

Long-term survival of surface water ice on comet 67P

scientific article

Mapping the carbon monoxide coma of comet 29P/Schwassmann-Wachmann 1

scientific article published in Astronomy and Astrophysics

Meter-scale thermal contraction crack polygons on the nucleus of comet 67P/Churyumov-Gerasimenko

Missed opportunities for tuberculosis prevention among patients accessing a UK HIV service

article

Modeling of cometary evolution by kinetic theory: Method and first results

Modelling of the outburst on 2015 July 29 observed with OSIRIS cameras in the Southern hemisphere of comet 67P/Churyumov–Gerasimenko

scientific article

Molecular oxygen in the ρ  Ophiuchi cloud

scientific article published in Astronomy and Astrophysics

Monte Carlo methods to calculate impact probabilities

scientific article published in Astronomy and Astrophysics

Morphology and dynamics of the jets of comet 67P/Churyumov-Gerasimenko: Early-phase development

scientific article published in Astronomy and Astrophysics

Multivariate statistical analysis of OSIRIS/Rosetta spectrophotometric data of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Natural transfer of viable microbes in space

scientific article

Natural transfer of viable microbes in space from planets in extra-solar systems to a planet in our solar system and vice versa

scientific article published in the Astrophysical Journal

New catalogue of one-apparition comets discovered in the years 1901–1950

scientific article published in Astronomy and Astrophysics

Nobel Symposium 135: Physics of Planetary Systems (18–22 June 2007, Lidingö, Stockholm, Sweden)

Non-gravitational motion of the Jupiter-family comet 81P/Wild 2. II. The active regions on the surface

scientific article published in Astronomy and Astrophysics

Nongravitational effects and the aging of periodic comets

scientific article published in Astronomical Journal

Nuclear magnitudes and the size distribution of Jupiter family comets

scholarly article

Nucleus properties of Comet 9P/Tempel 1 estimated from non-gravitational force modeling

article

OSIRIS observations of meter-sized exposures of H2O ice at the surface of 67P/Churyumov-Gerasimenko and interpretation using laboratory experiments

scientific article published in Astronomy and Astrophysics

OSIRIS – The Scientific Camera System Onboard Rosetta

Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Observations of Comet 9P/Tempel 1 around the Deep Impact event by the OSIRIS cameras onboard Rosetta

scientific article

Observations of water in comets with Odin

scientific article published in Astronomy and Astrophysics

On deviations from free-radial outflow in the inner coma of comet 67P/Churyumov–Gerasimenko

scholarly article

On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko

scientific article published in Science

On the present shape of the Oort cloud and the flux of “new” comets

On the properties of comets, asteroids, and terrestrial planet impactors

Opposition effect on comet 67P/Churyumov-Gerasimenko using Rosetta-OSIRIS images

scientific article published in Astronomy and Astrophysics

Orbital elements of the material surrounding comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Orbital evolution of short-period comets treated as a Markov process

scientific article published in Astronomical Journal

Orbits of short period comets captured from the Oort cloud

Origin and Evolution of the Cometary Reservoirs

Osiris—The optical, spectroscopic and infrared remote imaging system for the Rosetta Orbiter

Photoelectric photometry of asteroids 33 Polyhymnia and 386 Siegena

Photometry of dust grains of comet 67P and connection with nucleus regions

scientific article published in Astronomy and Astrophysics

Physical properties and dynamical relation of the circular depressions on comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Physical properties of morphological units on Comet 9P/Tempel 1 derived from near-IR Deep Impact spectra

scholarly article

Physical studies of asteroids IX: The light curve of the M asteroid 77 Frigga

article by C. -I. Lagerkvist & Hans Rickman published August 1982 in Earth, Moon, and Planets

Planetary perturbations for Oort Cloud comets. I. Distributions and dynamics

article

Planetary perturbations for Oort cloud comets: II. Implications for the origin of observable comets

scholarly article

Planetary perturbations for Oort cloud comets: III. Evolution of the cloud and production of centaurs and Halley type comets

Possible interpretation of the precession of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Post-perihelion photometry of dust grains in the coma of 67P Churyumov–Gerasimenko

scientific article

Preface

Production and kinematics of CO in comet C/1995 O1 (Hale-Bopp) at large post-perihelion distances

scientific article published in Astronomy and Astrophysics

Radiation damage in OSIRIS filter substrates

Redistribution of particles across the nucleus of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Regional surface morphology of comet 67P/Churyumov-Gerasimenko from Rosetta/OSIRIS images

scientific article published in Astronomy and Astrophysics

Regional surface morphology of comet 67P/Churyumov-Gerasimenko from Rosetta/OSIRIS images: The southern hemisphere

scientific article published in Astronomy and Astrophysics

Regional surface morphology of comet 67P/Churyumov-Gerasimenko from Rosetta/OSIRIS images: The southern hemisphere (Corrigendum)

scientific article published in Astronomy and Astrophysics

Risks threatening viable transfer of microbes between bodies in our solar system

Rosetta Radio Science Investigations (RSI)

Rosetta's comet 67P/Churyumov-Gerasimenko sheds its dusty mantle to reveal its icy nature

scientific article published on 17 November 2016

Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Scientific assessment of the quality of OSIRIS images

scientific article published in Astronomy and Astrophysics

Search for satellites near comet 67P/Churyumov-Gerasimenko using Rosetta/OSIRIS images

scientific article published in Astronomy and Astrophysics

Seasonal erosion and restoration of the dust cover on comet 67P/Churyumov-Gerasimenko as observed by OSIRIS onboard Rosetta

scientific article published in Astronomy and Astrophysics

Seasonal mass transfer on the nucleus of comet 67P/Churyumov–Gerasimenko

scientific article

Secular orbital evolution of Jupiter family comets

scientific article published in Astronomy and Astrophysics

Shape model, reference system definition, and cartographic mapping standards for comet 67P/Churyumov-Gerasimenko – Stereo-photogrammetric analysis of Rosetta/OSIRIS image data

scientific article published in Astronomy and Astrophysics

Simulation of gas flow in a cometary Knudsen layer

Size-frequency distribution of boulders ≥7 m on comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Spectrophotometric investigation of Phobos with the Rosetta OSIRIS-NAC camera and implications for its collisional capture

scientific article

Spectrophotometric properties of the nucleus of comet 67P/Churyumov-Gerasimenko from the OSIRIS instrument onboard the ROSETTA spacecraft

scientific article published in Astronomy and Astrophysics

Spectrophotometry of the Khonsu region on the comet 67P/Churyumov–Gerasimenko using OSIRIS instrument images

scientific article

Spins, shapes, and orbits for near-Earth objects by Nordic NEON

Stellar perturbations on the scattered disk

scientific article published in Astronomy and Astrophysics

Structure and evolution of the Jupiter family

Sublimation of icy aggregates in the coma of comet 67P/Churyumov–Gerasimenko detected with the OSIRIS cameras on boardRosetta

scholarly article

Summer fireworks on comet 67P

article

Sunset jets observed on comet 67P/Churyumov-Gerasimenko sustained by subsurface thermal lag

scientific article published in Astronomy and Astrophysics

Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past.

scientific article

Surface roughness and three-dimensional heat conduction in thermophysical models

Temporal morphological changes in the Imhotep region of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Tensile strength of 67P/Churyumov-Gerasimenko nucleus material from overhangs (Corrigendum)

scientific article published in Astronomy and Astrophysics

Tensile strength of 67P/Churyumov–Gerasimenko nucleus material from overhangs

scientific article published in Astronomy and Astrophysics

The 1995–2002 Long-Term Monitoring of Comet C/1995 O1 (HALE–BOPP) at Radio Wavelength

article published in 2002

The 2016 Feb 19 outburst of comet 67P/CG: an ESA Rosetta multi-instrument study

scientific article

The Agilkia boulders/pebbles size–frequency distributions: OSIRIS and ROLIS joint observations of 67P surface

scholarly article

The CORALIE survey for southern extrasolar planets. XVIII. Three new massive planets and two low-mass brown dwarfs at greater than 5 AU separation

scholarly article

The EChO science case

scientific article (publication date: 29 November 2015)

The Oort Cloud and long-period comets

scholarly article

The SPHERE infrared survey for exoplanets (SHINE). III. The demographics of young giant exoplanets below 300 au with SPHERE

scholarly article

The connection between comet P/Machholz and the Quadrantid meteor stream

scientific article

The destruction of an Oort Cloud in a rich stellar cluster

scientific article published in Astronomy and Astrophysics

The dust environment of comet 67P/Churyumov-Gerasimenko from Rosetta OSIRIS and VLT observations in the 4.5 to 2.9 AU heliocentric distance range inbound

scientific article published in Astronomy and Astrophysics

The geomorphology of (21) Lutetia: Results from the OSIRIS imaging system onboard ESA's Rosetta spacecraft

The global meter-level shape model of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

The global shape, density and rotation of Comet 67P/Churyumov-Gerasimenko from preperihelion Rosetta/OSIRIS observations

The highly active Anhur–Bes regions in the 67P/Churyumov–Gerasimenko comet: results from OSIRIS/ROSETTA observations

scientific article

The key role of massive stars in Oort cloud comet dynamics

scientific article

The last revolution of new comets: the role of stars and their detectability

scientific article published in Astronomy and Astrophysics

The opposition effect of 67P/Churyumov–Gerasimenko on post-perihelion Rosetta images

scientific article

The pebbles/boulders size distributions on Sais: Rosetta’s final landing site on comet 67P/Churyumov–Gerasimenko

scientific article

The phase function and density of the dust observed at comet 67P/Churyumov–Gerasimenko

scholarly article

The primordial nucleus of comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

The pristine interior of comet 67P revealed by the combined Aswan outburst and cliff collapse

The rotation state of 67P/Churyumov-Gerasimenko from approach observations with the OSIRIS cameras on Rosetta

scientific article published in Astronomy and Astrophysics

The southern hemisphere of 67P/Churyumov-Gerasimenko: Analysis of the preperihelion size-frequency distribution of boulders ≥7 m

scientific article published in Astronomy and Astrophysics

The spin periods of masteroids

The strange periodic comet machholz.

scientific article

Thermal inertia and surface roughness of Comet 9P/Tempel 1

scholarly article

Thermal modelling of water activity on comet 67P/Churyumov-Gerasimenko with global dust mantle and plural dust-to-ice ratio

scientific article

Thermophysics of fractures on comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Transport of comets to the Inner Solar System

Triple F—a comet nucleus sample return mission

scientific article published on 7 August 2008

Two independent and primitive envelopes of the bilobate nucleus of comet 67P.

scientific article

Using comet light-curve asymmetries to predict comet returns

scientific article published in Nature

Variegation of comet 67P/Churyumov-Gerasimenko in regions showing activity

scientific article published in Astronomy and Astrophysics