activity
20112026
most citedA Steeper than Linear Disk Mass-Stellar Mass Scaling Relation

455 citations · 1.9k across the 58 of their papers we have counts for

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Showing 2026Show all

13 papers · 1 filter

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.EP2026

Super-Earth Interiors Shrink by About 10% as They Crystallise

Tim Lichtenberg, Mara Attia, Harrison Nicholls +26

Super-Earth exoplanets are among the most abundant planets known, yet their bulk densities leave the interior state degenerate. The static structure models used to interpret them,…

astro-ph.EP2026

Around the water snowline: I. Effects of dynamical and chemical interplay on mid-infrared water spectra of protoplanetary discs

Till Kaeufer, Sebastiaan Krijt, Edwin A. Bergin +2

Protoplanetary discs' infrared water spectra (e.g. as observed by JWST) encode information about the underlying water distribution and physical conditions. In this work, we examine…

astro-ph.EP2026

The JDISC Survey: Inner Disk Chemistry of Class I/FS Disks and Tentative Evidence for Early Pebble Drift

Ke Zhang, Andrea Banzatti, Colette Salyk +22

We present the first chemical survey of Class I and Flat-Spectrum (I/FS) disks using JWST MIRI/MRS, targeting sixteen sources in the Ophiuchus star-forming region. Through empirica…

astro-ph.EP2026

Planetesimal Formation Across the Stellar Mass Spectrum and its Influence on Exoplanet-Inherited Volatile Budgets

Joe Williams, Sebastiaan Krijt, Joanna Drążkowska +1

Protoplanetary discs emerging from collapsing molecular clouds are capable of forming planetesimals at the water snowline during both the cloud collapse and Class II disc phases; s…

astro-ph.EP2026

Chemical Divergence and Water Depletion: Gas Properties of Evolved Upper Scorpius Disks Revealed by JWST/MIRI

Eshan Raul, Ke Zhang, Abygail Waggoner +25

Tracing the chemical evolution of protoplanetary disks over time requires observations of disks at different ages. However, most JWST/MIRI surveys published to date have targeted y…

astro-ph.EP2026

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…

astro-ph.SR2026

Characterizing the Extended Molecular Hydrogen Winds in Protoplanetary Disks from the JWST Disk Infrared Spectroscopic Chemistry Survey

Mayank Narang, Klaus M. Pontoppidan, Colette Salyk +14

We present a comprehensive analysis of extended H emission from 34 protoplanetary disks observed with the JWST Disk Infrared Spectroscopic Chemistry Survey (JDISCS), supplement…

astro-ph.EP2026

Simulating the interplay between the snowline pebble flux and ongoing planet formation and migration

Danila Astrakhantsev, Sebastiaan Krijt, Sofia Savvidou +1

Pebble drift plays a central role in modern planet formation models. In this work we carry out planet formation simulations (including pebble accretion and migration) for a range o…

astro-ph.EP2026

JWST/MIRI Hydrocarbon and Water Absorption in the Wind of a Young Disk: Signatures of Pebble Drift and Carbon Grain Sublimation

María José Colmenares, Edwin A. Bergin, Ke Zhang +27

We present JWST/MIRI-MRS observations of ISO-Oph 37, a highly inclined flat-spectrum (1 Myr old) source, to investigate the chemical composition and dynamical origin of i…

astro-ph.EP2026★ 3 cited

HO in the terrestrial planet-forming regions of protoplanetary disks

Colette Salyk, Klaus M. Pontoppidan, Ke Zhang +12

Isotopologues play an important role in solar system cosmochemistry studies, revealing details of early planet formation physics and chemistry. Oxygen isotopes, as measured in sola…

astro-ph.EP2026

Tracing Pebble Drift History in Two Protoplanetary Disks with CO Enhancement

Tayt Armitage, Joe Williams, Ke Zhang +15

Pebble drift is an important mechanism for supplying the materials needed to build planets in the inner region of protoplanetary disks. Thus, constraining pebble drift's timescales…

astro-ph.EP2026★ 1 cited

Protoplanetary disk cavities with JWST-MIRI: a dichotomy in molecular emission

Patrick Mallaney, Andrea Banzatti, Colette Salyk +24

The evolution of planet-forming regions in protoplanetary disks is of fundamental importance to understanding planet formation. Disks with a central deficit in dust emission, a "ca…