List of works by Jörn Helbert

A dynamic upper atmosphere of Venus as revealed by VIRTIS on Venus Express

scientific article

A geologically supervised spectral analysis of 121 globally distributed impact craters as a tool for identifying vertical and horizontal heterogeneities in the composition of the shallow crust of Mercury

article

A new approach to assessing the burial depth of ground ice deposits and its application to proposed MER landing sites in Isidis Planitia

scholarly article

A new perspective on Mercury's surface composition and temperatures: Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS)

article

A set of laboratory analogue materials for the MERTIS instrument on the ESA BepiColombo mission to Mercury

Analysis of the MESSENGER MASCS photometric targets part I: Photometric standardization for examining spectral variability across Mercury's surface

scientific article

Analysis of the MESSENGER MASCS photometric targets part II: Photometric variability between geomorphological units

scholarly article

Anomalously porous boulders on (162173) Ryugu as primordial materials from its parent body

scientific article published on 24 May 2021

Approach towards a Holistic Management of Research Data in Planetary Science—Use Case Study Based on Remote Sensing Data

scientific article published in 2022

Characterization of asteroid analogues by means of emission and reflectance spectroscopy in the 1- to 100-µm spectral range

Comparison of surface temperatures measured by the Planetary Fourier Spectrometer (PFS) on Mars Express with predictions from the Berlin Mars near Surface Thermal model (BMST) for the BEAGLE 2 landing site in Isidis Planitia

Comparisons of fresh complex impact craters on Mercury and the Moon: Implications for controlling factors in impact excavation processes

article

Constraints on Mercury’s surface composition from MESSENGER and ground-based spectroscopy

article

Creating Habitable Zones, at all Scales, from Planets to Mud Micro-Habitats, on Earth and on Mars

article published in 2007

Dark spots on Mercury: A distinctive low-reflectance material and its relation to hollows

Deep space instrument design for thermal infrared imaging with MERTIS

Deriving optical constants of volcanish ash using measurements from the planetary emissivity laboratory at DLR

Determination of a precise rotation period for the Deep Space 1 target, Comet 19P/Borrelly

scholarly article

Developing of MERTIS as an advanced process from the study up to the flight model

Digging deep for ice in Isidis Planitia—New constraints on subsurface volatile concentrations from thermal modeling

Earth and moon observations by thermal infrared imager on Hayabusa2 and the application to detectability of asteroid 162173 Ryugu

scholarly article

Emissivity measurements of analogue materials for the interpretation of data from PFS on Mars Express and MERTIS on Bepi-Colombo

Estimation of lunar surface temperatures and thermophysical properties: test of a thermal model in preparation of the MERTIS experiment onboard BepiColombo

article by Karin E. Bauch et al published October 2014 in Planetary and Space Science

Global inventory and characterization of pyroclastic deposits on Mercury: New insights into pyroclastic activity from MESSENGER orbital data

article

Highly porous nature of a primitive asteroid revealed by thermal imaging

scientific article published on 16 March 2020

Idunn Mons on Venus: Location and extent of recently active lava flows

In-situ high-temperature emissivity spectra and thermal expansion of C2/c pyroxenes: Implications for the surface of Mercury

scholarly article in American Mineralogist, vol. 99 no. 4, April 2014

Infrared Reflectance and Emissivity Spectra of Nanodiamonds

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

scholarly article

Komatiites as Mercury surface analogues: Spectral measurements at PEL

scientific article

Limits on the burial depth of glacial ice deposits on the flanks of Hecates Tholus, Mars

scholarly article

Long-term optical spectrophotometric monitoring of comet C/1995 O1 (Hale-Bopp)

scientific article published in Astronomy and Astrophysics

Low thermal conductivity boulder with high porosity identified on C-type asteroid (162173) Ryugu

scholarly article

MERTIS on BepiColombo: seeing Mercury in a new light

MERTIS: background signal removal and signal simulation

MERTIS: from laboratory to Mercury

MERTIS: reflective baffle design and manufacturing

MERTIS: shutterless background signal removal

MERTIS: system theory and simulation

MERTIS: understanding Mercury's surface composition from mid-infrared spectroscopy

article

MERTIS−thermal infrared imaging of Mercury: advances in mid-IR remote sensing technology for planetary exploration

Martian atmospheric particulate spectral end-members recovery from PFS and IRIS data

scientific article

Mercury's hollows: Constraints on formation and composition from analysis of geological setting and spectral reflectance

article

Mercury's surface and composition to be studied by BepiColombo

article

Mercury’s Surface Composition and Character as Measured by Ground-Based Observations

article

Mercury’s Weather-Beaten Surface: Understanding Mercury in the Context of Lunar and Asteroidal Space Weathering Studies

article

Mid-infrared spectral variability for compositionally similar asteroids: Implications for asteroid particle size distributions

article

Mineralogical indicators of Mercury's hollows composition in MESSENGER color observations

article

New advances in interdisciplinary observation and understanding of the solar system

OSS (Outer Solar System): a fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt

scientific article published on 8 July 2012

Observing the surface of Venus after VIRTIS on VEX: new concepts and laboratory work

Olivine thermal emissivity under extreme temperature ranges: Implication for Mercury surface

scholarly article by Jörn Helbert et al published June 2013 in Earth and Planetary Science Letters

On the effect of emergence angle on emissivity spectra: application to small bodies

Optical observations of Comet 67P/Churyumov-Gerasimenko

scientific article published in Astronomy and Astrophysics

Pointing and spectral assignment design and control for MERTIS

Recent hotspot volcanism on Venus from VIRTIS emissivity data.

scientific article

Reflectance spectroscopy (200–2500nm) of highly-reduced phases under oxygen- and water-free conditions

scientific article

Remote-Sensing of Planetary Surface Using Infrared Spectroscopy

article published in 2014

Report of the COSPAR Mars Special Regions Colloquium

journal article

Rotation period of Venus estimated from Venus Express VIRTIS images and Magellan altimetry

article

Sample return of primitive matter from the outer Solar System

Scientific goals for the observation of Venus by VIRTIS on ESA/Venus express mission

Search for active lava flows with VIRTIS on Venus Express

Shallow crustal composition of Mercury as revealed by spectral properties and geological units of two impact craters

article

South-polar features on Venus similar to those near the north pole

scientific article

Space weathering of silicate regoliths with various FeO contents: New insights from laser irradiation experiments and theoretical spectral simulations

scholarly article

Spectral and petrologic analyses of basaltic sands in Ka'u Desert (Hawaii) - implications for the dark dunes on Mars

scientific article published in 2012

Spectral emissivity measurements of Mercury's surface indicate Mg- and Ca-rich mineralogy, K-spar, Na-rich plagioclase, rutile, with possible perovskite, and garnet

scholarly article by A.L. Sprague et al published March 2009 in Planetary and Space Science

Spectroscopic Observations of Mercury's Surface Reflectance During MESSENGER's First Mercury Flyby

scientific article

Surface brightness variations seen by VIRTIS on Venus Express and implications for the evolution of the Lada Terra region, Venus

scholarly article

THERMAP: a mid-infrared spectro-imager for space missions to small bodies in the inner solar system

Temperature distribution in powder beds during 3D printing

The BepiColombo mission: An outstanding tool for investigating the Hermean environment

The Berlin emissivity database (BED)

The MASCOT Radiometer MARA for the Hayabusa 2 Mission

article published in 2016

The Main-belt Asteroid and NEO Tour with Imaging and Spectroscopy (MANTIS)

The Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) for the BepiColombo mission

The Planetary Emissivity Laboratory (PEL) at DLR, Berlin

The Venus Emissivity Mapper (VEM): obtaining global mineralogy of Venus from orbit

scholarly article published 18 September 2018

The chemistry of C2 and C3 in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances rh ≥ 2.9 AU

scientific article published in Astronomy and Astrophysics

The dust activity of comet C/1995 O1 (Hale-Bopp) between 3 AU and 13 AU from the Sun

scientific article published in Astronomy and Astrophysics

The emissivity of a fine-grained labradorite sample at typical Mercury dayside temperatures

scholarly article

The low-iron, reduced surface of Mercury as seen in spectral reflectance by MESSENGER

article

The planetary fourier spectrometer (PFS) onboard the European Venus Express mission

Thermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2

scholarly article

Thermal infrared imaging of Mercury - MERTIS - a new remote sensing technology

Thermal infrared spectroscopy to investigate the composition of mercury – The MERTIS instrument on BepiColombo

article

Thermal structure of Martian soil and the measurability of the planetary heat flow

scholarly article

Thermophysical modeling of Didymos’ moon for the Asteroid Impact Mission

VIRTIS emissivity of Alpha Regio, Venus, with implications for tessera composition

article

Venus Surface Composition Constrained by Observation and Experiment

article

Venus express: Highlights of the nominal mission

Venus surface thermal emission at 1μm in VIRTIS imaging observations: Evidence for variation of crust and mantle differentiation conditions

scholarly article

Visible and near-infrared reflectance spectra of thermally processed synthetic sulfides as a potential analog for the hollow forming materials on Mercury

article published in 2013

Visible to near-infrared hyperspectral measurements of mercury: Challenges for deciphering surface mineralogy

scholarly article published June 2014

Water on the Terrestrial Planets

What is controlling the reflectance spectra (0.35–150 µm) of hydrated (and dehydrated) carbonaceous chondrites?

scientific article