43 citations · 198 across the 12 of their papers we have counts for
12 papers
Exploring refractory organics in extraterrestrial particles
Alexey Potapov, Maria Elisabetta Palumbo, Zelia Dionnet +5
The origin of organic compounds detected in meteorites and comets, some of which could serve as precursors of life on Earth, still remains an open question. The aim of the present…
A New "Non-energetic" Route to Complex Organic Molecules in Astrophysical Environments: The C + HO HCO Solid-state Reaction
Alexey Potapov, Serge Krasnokutski, Cornelia Jäger +1
The solid-state reaction C + HO HCO was studied experimentally following the codeposition of C atoms and HO molecules at low temperatures. In spite of the…
Physics and Chemistry on the Surface of Cosmic Dust Grains: A Laboratory View
Alexey Potapov, Martin McCoustra
Dust grains play a central role in the physics and chemistry of cosmic environments. They influence the optical and thermal properties of the medium due to their interaction with s…
Dust/ice mixing in cold regions and solid-state water in the diffuse interstellar medium
Alexey Potapov, Jeroen Bouwman, Cornelia Jäger +1
Whether ice in cold cosmic environments is physically separated from the silicate dust or mixed with individual silicate moieties is not known. However, different grain models give…
Ice coverage of dust grains in cold astrophysical environments
Alexey Potapov, Cornelia Jäger, Thomas Henning
Surface processes on cosmic solids in cold astrophysical environments lead to gas phase depletion and molecular complexity. Most astrophysical models assume that the molecular ice…
Thermal formation of ammonium carbamate on the surface of laboratory analogues of carbonaceous grains in protostellar envelopes and planet-forming disks
Alexey Potapov, Cornelia Jäger, Thomas Henning
The catalytic role of dust grain surfaces in the thermal reaction CO2 + 2NH3 NH4+NH2COO was recently demonstrated by our group. The rate coefficients for the reaction…
High-resolution gas phase spectroscopy of molecules desorbed from an ice surface: a proof-of-principle study
Patrice Theulé, Christian Endres, Marius Hermanns +2
High-resolution gas phase spectroscopy techniques in the microwave, millimeter-wave and terahertz spectral ranges can be used to study complex organic molecules desorbed from inter…
Evidence of surface catalytic effect on cosmic dust grain analogues: the ammonia and carbon dioxide surface reaction
Alexey Potapov, Patrice Theulé, Cornelia Jäger +1
Surface chemistry on cosmic dust grains plays an important role in the formation of molecules at low temperatures in the interstellar and circumstellar environments. For the first…
Photodesorption of water ice from dust grains and thermal desorption of cometary ices studied by the INSIDE experiment
Alexey Potapov, Cornelia Jäger, Thomas Henning
A new experimental set-up INterStellar Ice-Dust Experiment (INSIDE), was designed for studying cosmic grain analogues represented by ice-coated carbon- and silicate-based dust grai…
Temperature programed desorption of water ice from the surface of amorphous carbon and silicate grains as related to planet-forming disks
Alexey Potapov, Cornelia Jäger, Thomas Henning
Understanding the history and evolution of small bodies, such as dust grains and comets, in planet-forming disks is very important to reveal the architectural laws responsible for…
Low temperature optical properties of interstellar and circumstellar icy silicate grain analogues in the mid-infrared spectral region
Alexey Potapov, Harald Mutschke, Phillip Seeber +2
Two different silicate/water ice mixtures representing laboratory analogues of interstellar and circumstellar icy grains were produced in the laboratory. For the first time, optica…
The CO-H2 van der Waals complex and complex organic molecules in cold molecular clouds: a TMC-1C survey
A. Potapov, A. Sanchez-Monge, P. Schilke +3
Almost 200 different species have been detected in the interstellar medium (ISM) during the last decades, revealing not only simple species but complex molecules with more than 6 a…