362 citations · 2.8k across the 43 of their papers we have counts for
34 papers · 1 filter
Soot Planets instead of Water Worlds
Jie Li, Edwin A. Bergin, Marc M. Hirschmann +3
Some low-density exoplanets are thought to be water-rich worlds that formed beyond the snow line of their protoplanetary disc, possibly accreting coequal portions of rock and water…
Burned to ashes: How the thermal decomposition of refractory organics in the inner protoplanetary disc impacts the gas-phase C/O ratio
Adrien Houge, Anders Johansen, Edwin Bergin +5
The largest reservoir of carbon in protoplanetary discs is stored in refractory organics, which thermally decompose into the gas-phase at the organics line, well interior to the wa…
Dynamics of small, constant size particles in a protoplanetary disk with an embedded protoplanet
Ellen M. Price, Eric Van Clepper, Fred J. Ciesla
Hydrodynamical simulations of protoplanetary disk dynamics are useful tools for understanding the formation of planetary systems, including our own. Approximations are necessary to…
Three-dimensional transport of solids in a protoplanetary disk containing a growing giant planet
Eric Van Clepper, Ellen M. Price, Fred J. Ciesla
We present the results of combined hydrodynamic and particle tracking post-processing modeling to study the transport of small dust in a protoplanetary disk containing an embedded…
JWST/MIRI detection of a carbon-rich chemistry in a solar nebula analog
Maria Jose Colmenares, Edwin Bergin, Colette Salyk +16
It has been proposed, and confirmed by multiple observations, that disks around low mass stars display a molecule-rich emission and carbon-rich disk chemistry as compared to their…
Exoplanet Volatile Carbon Content as a Natural Pathway for Haze Formation
E. A. Bergin, E. Kempton, M. Hirschmann +5
We explore terrestrial planet formation with a focus on the supply of solid-state organics as the main source of volatile carbon. For the water-poor Earth, the water ice line, or i…
The Volatile Carbon to Oxygen Ratio as a Tracer for the Formation Locations of Interstellar Comets
Darryl Z. Seligman, Leslie A. Rogers, Samuel H. C. Cabot +13
Based on the occurrence rates implied by the discoveries of 1I/`Oumuamua and 2I/Borisov, the forthcoming Rubin Observatory Legacy Survey of Space and Time (LSST) should detect $\ge…
Chemical Feedbacks of Pebble Growth: Impacts on CO depletion and C/O ratios
Eric Van Clepper, Jennifer B. Bergner, Arthur D. Bosman +2
Observations of protoplanetary disks have revealed them to be complex and dynamic, with vertical and radial transport of gas and dust occurring simultaneously with chemistry and pl…
Thermal Processing of Solids Encountering a Young Jovian Core
Megan N. Barnett, Fred J. Ciesla
Jupiter's enhancement in nitrogen relative to hydrogen when compared to the Sun has been interpreted as evidence that its early formation occurred beyond the N snowline ($\si…
Why do M dwarfs have more transiting planets?
Gijs D. Mulders, Joanna Drążkowska, Nienke van der Marel +2
We propose a planet formation scenario to explain the elevated occurrence rates of transiting planets around M dwarfs compared to sun-like stars discovered by Kepler. We use a pebb…
The Mass Budgets and Spatial Scales of Exoplanet Systems and Protoplanetary Disks
Gijs D. Mulders, Ilaria Pascucci, Fred J. Ciesla +1
Planets are born from disks of gas and dust, and observations of protoplanetary disks are used to constrain the initial conditions of planet formation. However, dust mass measureme…
Ice inheritance in dynamical disk models
Jennifer Bergner, Fred Ciesla
The compositions of planet-forming disks are set by a combination of material inherited from the interstellar medium and material reprocessed during disk formation and evolution. I…
Early volatile depletion on planetesimals inferred from C-S systematics of iron meteorite parent bodies
Marc M. Hirschmann, Edwin A. Bergin, Geoff A. Blake +2
During the formation of terrestrial planets, volatile loss may occur through nebular processing, planetesimal differentiation, and planetary accretion. We investigate iron meteorit…
Earth's carbon deficit caused by early loss through irreversible sublimation
Jie Li, Edwin A. Bergin, Geoffrey A. Blake +2
Carbon is an essential element for life but its behavior during Earth's accretion is not well understood. Carbonaceous grains in meteoritic and cometary materials suggest that irre…
Earths in Other Solar Systems N-body simulations: the Role of Orbital Damping in Reproducing the Kepler Planetary Systems
Gijs D. Mulders, David P. O'Brien, Fred J. Ciesla +2
The population of exoplanetary systems detected by Kepler provides opportunities to refine our understanding of planet formation. Unraveling the conditions needed to produce the ob…
Tracking Dust Grains During Transport and Growth in Protoplanetary Disks
William Misener, Sebastiaan Krijt, Fred J. Ciesla
Protoplanetary disks are dynamic objects, within which dust grains and gas are expected to be redistributed over large distances. Evidence for this redistribution is seen both in o…
Systematic Variations of CO Gas Abundance with Radius in Gas-rich Protoplanetary Disks
Ke Zhang, Edwin A. Bergin, Kamber R. Schwarz +2
CO is the most widely used gas tracer of protoplanetary disks. Its abundance is usually assumed to be an interstellar ratio throughout the warm molecular layer of the disk. But rec…
The Exoplanet Population Observation Simulator. II -- Population Synthesis in the Era of Kepler
Gijs D. Mulders, Christoph Mordasini, Ilaria Pascucci +3
The collection of planetary system properties derived from large surveys such as Kepler provides critical constraints on planet formation and evolution. These constraints can only…
The Efficiency of Noble Gas Trapping in Astrophysical Environments
Fred Ciesla, Sebastiaan Krijt, Reika Yokochi +1
Amorphous ice has long been invoked as a means for trapping extreme volatiles into solids, explaining the abundances of these species in comets and planetary atmospheres. Experimen…
Transport of CO in Protoplanetary Disks: Consequences of Pebble Formation, Settling, and Radial Drift
Sebastiaan Krijt, Kamber R. Schwarz, Edwin A. Bergin +1
Current models of (exo)planet formation often rely on a large influx of so-called `pebbles' from the outer disk into the planet formation region. In this paper, we investigate how…
The Exoplanet Population Observation Simulator. I - The Inner Edges of Planetary Systems
Gijs D. Mulders, Ilaria Pascucci, Daniel Apai +1
The Kepler survey provides a statistical census of planetary systems out to the habitable zone. Because most planets are non-transiting, orbital architectures are best estimated us…
A comprehensive understanding of planet formation is required for assessing planetary habitability and for the search for life
Dániel Apai, Fred Ciesla, Gijs D. Mulders +14
Dozens of habitable zone, approximately earth-sized exoplanets are known today. An emerging frontier of exoplanet studies is identifying which of these habitable zone, small planet…
Destruction of Refractory Carbon in Protoplanetary Disks
Dana E. Anderson, Edwin A. Bergin, Geoffrey A. Blake +3
The Earth and other rocky bodies in the inner solar system contain significantly less carbon than the primordial materials that seeded their formation. These carbon-poor objects in…
Fast litho-panspermia in the habitable zone of the TRAPPIST-1 system
Sebastiaan Krijt, Timothy J. Bowling, Richard J. Lyons +1
With several short-period, Earth-mass planets in the habitable zone, the TRAPPIST-1 system potentially allows litho-panspermia to take place on very short timescales. We investigat…