14 citations · 34 across the 4 of their papers we have counts for
4 papers
The pre-perihelion evolution of the activity of comet C/2017 K2 (PANSTARRS) during the water ice-line crossover
Yuna G. Kwon, Stefano Bagnulo, Johannes Markkanen +4
Comets, relics from the early solar system, consist of dust and ice. The ice sublimates as comets approach the Sun, ejecting dust from their nuclei seen as activity. Different vola…
Extension of Radiative Transfer Coherent Backscattering RT-CB code to dense discrete random media
Johannes Markkanen, Antti Penttilä
The Radiative transfer coherent backscattering (RT-CB) code is extended to apply to dense discrete random media of optically soft spherical particles. This is achieved by utilizing…
Cometary surface dust layers built out of millimetre-scale aggregates: dependence of modelled cometary gas production on the layer transport properties
Yu. Skorov, J. Markkanen, V. Reshetnyk +5
The standard approach to obtaining knowledge about the properties of the surface layer of a comet from observations of gas production consists of two stages. First, various thermop…
Long-lasting activity of asteroid (248370) 2005 QN 173
Oleksandra Ivanova, Javier Licandro, Fernando Moreno +8
We present the results of observations of asteroid (248370) QN obtained during July 2021 - January 2022 with three telescopes. Our analysis revealed the presence of the dus…