activity
20202026
most citedA major asymmetric ice trap in a planet-forming disk: I. Formaldehyde and methanol

67 citations · 369 across the 25 of their papers we have counts for

collaborators

27 papers

astro-ph.EP2026

An ALMA view on molecular complexity: water, methanol, and methyl formate in the HD 100546 and IRS 48 disks

Luna Rampinelli, Stefano Facchini, Marta De Simone +6

Water and methanol are the fundamental constituents of interstellar and cometary ices: understanding their abundances in disks is therefore of high importance to reveal how this ic…

astro-ph.IM2026

Chemistry on solar system scales

Catherine Walsh, Maria Drozdovskaya, Dmitry Semenov +33

The initial chemical composition of planets, primitive bodies in our solar system, and exoplanets is ultimately set by their nascent protoplanetary disks. Yet observing key carbon-…

astro-ph.SR2026

Hunting for methanol in the water rich, planet forming disk around HL Tau

Alessandro Soave, Margot Leemker, Stefano Facchini +3

Methanol, the simplest complex organic molecule found in space, is considered a key compound necessary for the formation of chemical species of prebiotic interest. Methanol detecti…

astro-ph.EP2025

The chemical diversity of giant-planet nurseries as revealed by ALMA

Alice S. Booth, Jenny Calahan, Milou Temmink +9

With the giant exoplanet occurrence rate peaking around stars of 1.5-2 solar masses, there is strong motivation to characterize the disks that set their formation conditions. Obser…

astro-ph.EP2025★ 2 cited

Zooming into the water snowline: high resolution water observations of the HL Tau disk

M. Leemker, S. Facchini, P. Curone +4

Water is one of the central molecules for the formation and habitability of planets. In particular, the region where water freezes-out, the water snowline, could be a favorable loc…

astro-ph.EP2025★ 8 cited

Pristine ices in a planet-forming disk revealed by heavy water

Margot Leemker, John J. Tobin, Stefano Facchini +4

Water is essential to our understanding of the planet-formation process and habitability on Earth. Although trace amounts of water are seen across all phases of star and planet for…

astro-ph.EP2025

Ice sublimation in the dynamic HD 100453 disk reveals a rich reservoir of inherited complex organics

Alice S. Booth, Lisa Wölfer, Milou Temmink +7

Protoplanetary disks around luminous young A-type stars are prime observational laboratories to determine the abundances of complex organic molecules (COMs) present during planet f…

astro-ph.EP2025★ 5 cited

Radial variations in nitrogen, carbon, and hydrogen fractionation in the PDS 70 planet-hosting disk

L. Rampinelli, S. Facchini, M. Leemker +8

Element isotopic ratios are powerful tools to reconstruct the journey of planetary material, from the parental molecular cloud to protoplanetary disks, where planets form and accre…

astro-ph.EP2025★ 14 cited

ALMA reveals thermal and non-thermal desorption of methanol ice in the HD 100546 protoplanetary disk

Lucy Evans, Alice S. Booth, Catherine Walsh +8

Methanol (CHOH) and formaldehyde (HCO) are chemically coupled organic molecules proposed to act as an intermediate step between simple molecules and more complex prebiotic…

astro-ph.EP2024

Characterising the molecular line emission in the asymmetric Oph-IRS 48 dust trap: Temperatures, timescales, and sub-thermal excitation

Milou Temmink, Alice S. Booth, Margot Leemker +8

The ongoing physical and chemical processes in planet-forming disks set the stage for planet formation. The asymmetric disk around the young star Oph-IRS 48 has one of the most wel…

astro-ph.EP2024

Volatile composition of the HD 169142 disk and its embedded planet

Luke Keyte, Mihkel Kama, Alice S. Booth +2

The composition of a planet's atmosphere is intricately linked to the chemical makeup of the protoplanetary disk in which it formed. Determining the elemental abundances from key v…

astro-ph.EP2024

Measuring the and isotopic ratios of volatile sulfur during planet formation

Alice S. Booth, Maria N. Drozdovskaya, Milou Temmink +9

Stable isotopic ratios constitute powerful tools for unraveling the thermal and irradiation history of volatiles. In particular, we can use our knowledge of the isotopic fractionat…

astro-ph.EP2024★ 17 cited

ALMA high-resolution observations unveil planet formation shaping molecular emission in the PDS 70 disk

L. Rampinelli, S. Facchini, M. Leemker +7

With two directly detected protoplanets, the PDS 70 system is a unique source in which to study the complex interplay between forming planets and their natal environment. The large…

astro-ph.EP2024★ 1 cited

Chemistry across dust and gas gaps in protoplanetary disks: modelling the co-spatial molecular rings in the HD 100546 disk

M. Leemker, A. S. Booth, E. F. van Dishoeck +2

High-resolution observations show that typically both the dust and the gas in nearby extended protoplanetary disks are structured, possibly related to radial and azimuthal variatio…

astro-ph.EP2024★ 1 cited

An ALMA molecular inventory of warm Herbig Ae disks: II. Abundant complex organics and volatile sulphur in the IRS 48 disk

Alice S. Booth, Milou Temmink, Ewine F. van Dishoeck +11

The Atacama Large Millimeter/submillimeter Array (ALMA) can probe the molecular content of planet-forming disks with unprecedented sensitivity. These observations allow us to build…

astro-ph.EP2024★ 1 cited

An ALMA molecular inventory of warm Herbig Ae disks: I. Molecular rings, asymmetries and complexity in the HD 100546 disk

Alice S. Booth, Margot Leemker, Ewine F. van Dishoeck +11

Observations of disks with the Atacama Large Millimeter/submillimeter Array (ALMA) allow us to map the chemical makeup of nearby protoplanetary disks with unprecedented spatial res…

astro-ph.EP2023★ 1 cited

Constraining the gas mass of Herbig disks using CO isotopologues

L. M. Stapper, M. R. Hogerheijde, E. F. van Dishoeck +7

The total disk mass sets the formation potential for exoplanets. Carbon-monoxide (CO) has been used as a gas mass tracer in T Tauri disks, but was found to be less abundant than ex…

astro-ph.EP2023★ 40 cited

Tracing snowlines and C/O ratio in a planet-hosting disk: ALMA molecular line observations towards the HD169142 disk

Alice S. Booth, Charles J. Law, Milou Temmink +2

The composition of a forming planet is set by the material it accretes from its parent protoplanetary disk. Therefore, it is crucial to map the chemical make-up of the gas in disks…

astro-ph.EP2023★ 18 cited

A major asymmetric ice trap in a planet-forming disk IV. Nitric oxide gas and a lack of CN tracing sublimating ices and a C/O ratio

M. Leemker, A. S. Booth, E. F. van Dishoeck +5

[Abridged] Most well-resolved disks observed with ALMA show signs of dust traps. These dust traps set the chemical composition of the planet forming material in these disks, as the…

astro-ph.EP2022★ 16 cited

Disentangling protoplanetary disk gas mass and carbon depletion through combined atomic and molecular tracers

J. A. Sturm, A. S. Booth, M. K. McClure +2

The total disk gas mass and elemental C, N, O composition of protoplanetary disks are crucial ingredients for our understanding of planet formation. Measuring the gas mass is compl…

astro-ph.SR2022★ 13 cited

A Chemical Map of the Outbursting V883 Ori system: Vertical and Radial Structures

D. A. Ruiz-Rodriguez, J. P. Williams, J. H. Kastner +3

We present the first results of a pilot program to conduct an Atacama Large Millimeter/submillimeter Array (ALMA) Band 6 (211-275 GHz) spectral line study of young stellar objects…

astro-ph.SR2022

The young embedded disk L1527 IRS: constraints on the water snowline and cosmic ray ionization rate from HCO+ observations

Merel L. R. van 't Hoff, Margot Leemker, John J. Tobin +3

The water snowline in circumstellar disks is a crucial component in planet formation, but direct observational constraints on its location remain sparse due to the difficulty of ob…

astro-ph.EP2022★ 46 cited

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…

astro-ph.EP2022★ 64 cited

A major asymmetric ice trap in a planet-forming disk: III. First detection of dimethyl ether

Nashanty G. C. Brunken, Alice S. Booth, Margot Leemker +3

The complex organic molecules (COMs) detected in star-forming regions are the precursors of the prebiotic molecules that can lead to the emergence of life. By studying COMs in more…