524 citations · 3.1k across the 56 of their papers we have counts for
56 papers
Molecules in the shadows of the protoplanetary disk HD 143006: Evidence for C/O from simultaneously modeling fourteen ALMA lines
S. E. van Terwisga, P. Woitke, A. M. Weiss +2
The inner disk of the T Tauri star HD 143006 is inclined and casts a broad shadow on a large portion of the outer disk. We use this extraordinary geometry to study the impact of st…
The Carbon Isotopic Ratio and Planet Formation
Edwin A. Bergin, Arthur Bosman, Richard Teague +6
We present the first detection of 13CCH in a protoplanetary disk (TW Hya). Using observations of C2H we measure CCH/13CCH = 65 +/- 20 in gas with a CO isotopic ratio of 12CO/13CO =…
A potential site for wide-orbit giant planet formation in the IM Lup disk
Arthur Bosman, Johan Appelgren, Edwin A. Bergin +2
The radial transport, or drift, of dust has taken a critical role in giant planet formation theory. However, it has been challenging to identify dust drift pile ups in the hard-to-…
UV-driven Chemistry as a Signpost for Late-stage Planet Formation
Jenny K. Calahan, Edwin A. Bergin, Arthur D. Bosman +14
The chemical reservoir within protoplanetary disks has a direct impact on planetary compositions and the potential for life. A long-lived carbon-and nitrogen-rich chemistry at cold…
The kinematics and excitation of infrared water vapor emission from planet-forming disks: results from spectrally-resolved surveys and guidelines for JWST spectra
Andrea Banzatti, Klaus M. Pontoppidan, José Pérez Chávez +19
This work presents ground-based spectrally-resolved water emission at R = 30000-100000 over infrared wavelengths covered by JWST (2.9-12.8 m). Two new surveys with iSHELL and VI…
The formation of CO through consumption of gas-phase CO on vacuum-UV irradiated water ice
J. Terwisscha van Scheltinga, N. F. W. Ligterink, A. D. Bosman +2
[Abridged] Observations of protoplanetary disks suggest that they are depleted in gas-phase CO. It has been posed that gas-phase CO is chemically consumed and converted into less v…
Water shielding in the terrestrial planet-forming zone: Implication for inner disk organics
Sara E. Duval, Arthur D. Bosman, Edwin A. Bergin
The chemical composition of the inner region of protoplanetary disks can trace the composition of planetary building material. The exact elemental composition of the inner disk has…
Water UV-Shielding in the Terrestrial Planet-Forming Zone: Implications for Oxygen-18 Isotope Anomalies in H2-18O Infrared Emission and Meteorites
Jenny K. Calahan, Edwin A. Bergin, Arthur D. Bosman
An understanding of the abundance and distribution of water vapor in the innermost region of protoplanetary disks is key to understanding the origin of habitable worlds and planeta…
Water UV-shielding in the terrestrial planet-forming zone: Implications for carbon dioxide emission
Arthur D. Bosman, Edwin A. Bergin, Jenny K. Calahan +1
Carbon Dioxide is an important tracer of the chemistry and physics in the terrestrial planet forming zone. Using a thermo-chemical model that has been tested against the mid-infrar…
Water UV-shielding in the terrestrial planet-forming zone: Implications from water emission
Arthur D. Bosman, Edwin A. Bergin, Jenny Calahan +1
Mid-infrared spectroscopy is one of the few ways to observe the composition of the terrestial planet forming zone, the inner few au, of proto-planetary disks. The species currently…
Gas temperature structure across transition disk cavities
M. Leemker, A. S. Booth, E. F. van Dishoeck +8
[Abridged] Most disks observed at high angular resolution show substructures. Knowledge about the gas surface density and temperature is essential to understand these. The aim of t…
Scanning disk rings and winds in CO at 0.01-10 au: a high-resolution -band spectroscopy survey with IRTF-iSHELL
Andrea Banzatti, Kirsten M. Abernathy, Sean Brittain +11
We present an overview and first results from a -band spectroscopic survey of planet-forming disks performed with iSHELL on IRTF, using two slits that provide resolving power R…
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…
Molecules with ALMA at Planet-forming Scales (MAPS) XVII: Determining the 2D Thermal Structure of the HD 163296 Disk
Jenny K. Calahan, Edwin A. Bergin, Ke Zhang +26
Understanding the temperature structure of protoplanetary disks is key to interpreting observations, predicting the physical and chemical evolution of the disk, and modeling planet…
Molecules with ALMA at Planet-forming Scales (MAPS) II: CLEAN Strategies for Synthesizing Images of Molecular Line Emission in Protoplanetary Disks
Ian Czekala, Ryan A. Loomis, Richard Teague +27
The Molecules with ALMA at Planet-forming Scales large program (MAPS LP) surveyed the chemical structures of five protoplanetary disks across more than 40 different spectral lines…
Molecules with ALMA at Planet-forming Scales (MAPS) V: CO gas distributions
Ke Zhang, Alice S. Booth, Charles J. Law +32
Here we present high resolution (15-24 au) observations of CO isotopologue lines from the Molecules with ALMA on Planet-forming Scales (MAPS) ALMA Large Program. Our analysis emplo…
Molecules with ALMA at Planet-forming Scales (MAPS) XIV: Revealing disk substructures in multi-wavelength continuum emission
Anibal Sierra, Laura M. Pérez, Ke Zhang +25
Constraining dust properties of planet-forming disks via high angular resolution observations is fundamental to understanding how solids are trapped in substructures and how dust g…
Molecules with ALMA at Planet-forming Scales (MAPS) XIII: HCO and disk ionization structure
Yuri Aikawa, Gianni Cataldi, Yoshihide Yamato +25
We observed HCO and HCO emission towards the five protoplanetary disks around IM Lup, GM Aur, AS 209, HD 163296, and MWC 480 as part of the MAPS proj…
Molecules with ALMA at Planet-forming Scales (MAPS XVIII): Kinematic Substructures in the Disks of HD 163296 and MWC 480
Richard Teague, Jaehan Bae, Yuri Aikawa +24
We explore the dynamical structure of the protoplanetary disks surrounding HD 163296 and MWC 480 as part of the Molecules with ALMA at Planet Forming Scales (MAPS) large program. U…
Molecules with ALMA at Planet-forming Scales (MAPS) IV: Emission Surfaces and Vertical Distribution of Molecules
Charles J. Law, Richard Teague, Ryan A. Loomis +32
The Molecules with ALMA at Planet-forming Scales (MAPS) Large Program provides a unique opportunity to study the vertical distribution of gas, chemistry, and temperature in the pro…
Molecules with ALMA at Planet-forming Scales (MAPS) XII: Inferring the C/O and S/H ratios in Protoplanetary Disks with Sulfur Molecules
Romane Le Gal, Karin I. Öberg, Richard Teague +24
Sulfur-bearing molecules play an important role in prebiotic chemistry and planet habitability. They are also proposed probes of chemical ages, elemental C/O ratio, and grain chemi…
Molecules with ALMA at Planet-forming Scales (MAPS) VIII: CO Gap in AS 209--Gas Depletion or Chemical Processing?
Felipe Alarcón, Arthur Bosman, Edwin Bergin +22
Emission substructures in gas and dust are common in protoplanetary disks. Such substructures can be linked to planet formation or planets themselves. We explore the observed gas s…
Molecules with ALMA at Planet-forming Scales (MAPS) XI: CN and HCN as Tracers of Photochemistry in Disks
Jennifer B. Bergner, Karin I. Oberg, Viviana V. Guzman +23
UV photochemistry in the surface layers of protoplanetary disks dramatically alters their composition relative to previous stages of star formation. The abundance ratio CN/HCN has…
Molecules with ALMA at Planet-forming Scales (MAPS) I: Program Overview and Highlights
Karin I. Oberg, Viviana V. Guzman, Catherine Walsh +35
Planets form and obtain their compositions in dust and gas-rich disks around young stars, and the outcome of this process is intimately linked to the disk chemical properties. The…