221 citations · 406 across the 17 of their papers we have counts for
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From Young to Older Disks: JWST/MIRI Evidence for Fading Molecular Emission and Hints for Elevated C/O in Upper Scorpius
Chengyan Xie, Ilaria Pascucci, Feng Long +23
We present JWST/MIRI spectroscopy of 14 disks in the older (~5-10 Myr) Upper Scorpius (USco) association and use slab of gas in local thermal equilibrium to infer basic gas propert…
Metamorphoses of carbon and oxygen in protoplanetary discs: how chemistry and radial drift transform inner disc C/O ratios
Tamara Molyarova, Richard A. Booth, Catherine Walsh
The chemical composition of a protoplanetary disc is sensitive to its thermal structure and dust properties, and can provide insights into the disc evolution. Recent observations w…
Evidence for Systematically Larger Dust Grains in Upper Scorpius Relative to Taurus Disks
Yao Liu, Ilaria Pascucci, Fei Gao +10
Infrared spectroscopy provides a powerful diagnostic for probing the mineralogical properties of dust grains in the terrestrial planet-forming regions of protoplanetary disks. The…
JWST-DECO: The Impact of Accretion on Mid-Infrared Observable Water in Planet-forming Disks
Jenny K. Calahan, Tarisai Dziire, Karin Öberg +13
The inner few au of a protoplanetary disk hosts the majority of observed exoplanets and is the primary planet-forming zone of the disk. The mid-IR spectra of disks, with its rich f…
Deuteration of water in protoplanetary discs during luminosity outbursts: model predictions for FU Ori discs
Anastasiia Topchieva, Tamara Molyarova, Anton Vasyunin
Luminosity outbursts of FU Ori-type objects (FUors) allow us to observe in the gas the molecules that are typically present in the ice in protoplanetary discs. In particular, the f…
The Effect of Luminosity Outbursts on the Abundance of Pebbles and Their Ice Mantles in Protoplanetary Disks
Anastasiia Topchieva, Tamara Molyarova, Eduard Vorobyov
Centimeter-sized dust grains-pebbles-are necessary for planetesimal formation via the streaming instability, they play an important role in forming protoplanetary cores and giant p…
C/O ratios in self-gravitating protoplanetary discs with dust evolution
Tamara Molyarova, Eduard Vorobyov, Vitaly Akimkin
Elemental abundances, particularly the C/O ratio, are seen as a way to connect the composition of planetary atmospheres with planet formation scenario and the disc chemical environ…
Ices on pebbles in protoplanetary discs
A. Topchieva, T. Molyarova, V. Akimkin +2
The formation of solid macroscopic grains (pebbles) in protoplanetary discs is the first step toward planet formation. We aim to study the distribution of pebbles and the chemical…
Machine learning-accelerated chemistry modeling of protoplanetary disks
Grigorii V. Smirnov-Pinchukov, Tamara Molyarova, Dmitry A. Semenov +4
Aims. With the large amount of molecular emission data from (sub)millimeter observatories and incoming James Webb Space Telescope infrared spectroscopy, access to fast forward mode…
Interpreting the atmospheric composition of exoplanets: sensitivity to planet formation assumptions
Paul Mollière, Tamara Molyarova, Bertram Bitsch +13
Constraining planet formation based on the atmospheric composition of exoplanets is a fundamental goal of the exoplanet community. Existing studies commonly try to constrain atmosp…
Gravitoviscous protoplanetary disks with a dust component. V. The dynamic model for freeze-out and sublimation of volatiles
Tamara Molyarova, Eduard I. Vorobyov, Vitaly Akimkin +3
The snowlines of various volatile species in protoplanetary disks are associated with abrupt changes in gas composition and dust physical properties. Volatiles may affect dust grow…
Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e
P. Mollière, T. Stolker, S. Lacour +25
Clouds are ubiquitous in exoplanet atmospheres and represent a challenge for the model interpretation of their spectra. Complex cloud models are too numerically costly for generati…
Chemical modelling of FU Ori protoplanetary disks
Tamara Molyarova, Vitaly Akimkin, Dmitry Semenov +5
Luminosity outbursts of the FUOri type stars, which have a magnitude of and last for decades, may affect chemical composition of the surrounding protoplanetary…
Luminosity outburst chemistry in protoplanetary discs: going beyond standard tracers
Dmitri S. Wiebe, Tamara S. Molyarova, Vitaly V. Akimkin +2
The chemical influence of luminosity outbursts on the environments of young solar-type stars is explored. Species are categorised into several types according to their response to…
Chemical Signatures of the FU Ori Outbursts
Tamara Molyarova, Vitaly Akimkin, Dmitry Semenov +5
The FU Ori-type young stellar objects are characterized by a sudden increase in luminosity by 12 orders of magnitude, followed by slow return to the pre-outburst state on timesc…
Gas mass tracers in protoplanetary disks: CO is still the best
Tamara Molyarova, Vitaly Akimkin, Dmitry Semenov +3
Protoplanetary disk mass is a key parameter controlling the process of planetary system formation. CO molecular emission is often used as a tracer of gas mass in the disk. In this…