activity
20112026
most citedDiscovery of a planetary-mass companion within the gap of the transition disk around PDS 70

700 citations · 9.5k across the 177 of their papers we have counts for

collaborators

183 papers

astro-ph.IM2026

Bridging the gap between stars and planets

Aina Palau, Dimitris Stamatellos, Matthew Bate +58

The formation mechanisms of brown dwarfs (BDs) and free-floating planets (FFPs) are poorly constrained. The two main competing scenarios include the star-like scenario, where these…

astro-ph.EP2026

Secular evolution of viscous and self-gravitating protoplanetary discs with magnetic winds

Evgenii R. Redkin, Eduard I. Vorobyov, Paola Pinilla +2

Traditionally, the disc is believed to evolve under the influence of turbulent viscosity, although the importance of this mechanism has recently been questioned. Alternatively, mag…

astro-ph.EP2026

Dust Substructures and Line Perturbations driven by a Forming Planet in J16120

Anibal Sierra, Andrés F. Izquierdo, Paola Pinilla +18

Hints of planet formation have been independently reported within the gap of the disc around 2MASS J16120668-301027 from millimetre continuum, infrared, and H-alpha observations. I…

astro-ph.EP2026

Drift-dominated dust evolution. A multiwavelength analysis of dust rings in CY Tau and DoAr25

Anastasia Topalidou, Nienke van der Marel, Paola Pinilla +3

Context. Protoplanetary disks are the birthplaces of planets, and understanding the distribution and evolution of dust within them is essential for tracing the early stages of plan…

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

Demographics of planet-forming disks with the SKAO

Antonio Garufi, Sebastián Pérez, John D. Ilee +21

Understanding how solid material in planet-forming disks evolves from micron-sized dust to planetary cores is a central challenge in modern astrophysics. This study has advanced dr…

astro-ph.EP2026

Substructures in Planet-Forming Disks with the SKAO

Yinhao Wu, Jessica Speedie, Sebastián Pérez +33

Disks of gas and dust orbiting young stars are the arenas and material reservoirs for planet formation. Over the past decade, multiwavelength observations, from infrared to radio,…

astro-ph.EP2026

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…

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

Molecular Similarity and Water Diversity in Coeval Binary Disks: JWST/MIRI Observations of Sz 65 and Sz 66

Jinghuai Yao, Ke Zhang, Andrea Banzatti +10

We present JWST/MIRI Medium Resolution Spectrometer spectra of the wide-separation (projected separation au) binary protoplanetary disks Sz 65 (K7; ) and Sz…

astro-ph.EP2026

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): Formaldehyde (HCO) emission and its links to disk properties

Ella Chevalier, Ke Zhang, Miguel Vioque +7

Protoplanetary disks are rotating structures of gas and dust surrounding young stars, serving as the birth places of planets. Understanding the chemical evolution of organic materi…

astro-ph.EP2026

Diverse dust vertical height and settling strength conditions in protoplanetary discs

Juanita Antilen, Paola Pinilla, Dafa Li +5

The settling of dust particles plays a critical role in the growth and dynamics of dust grains. We performed a detailed modeling of the ALMA continuum substructures for six highly…

astro-ph.EP2026

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): Constraints on disk turbulence, fragmentation velocity, and inner pebble fluxes

Lilian Luo, Paola Pinilla, Camila Pulgarés +14

How substructures and disk properties affect dust evolution and the delivery of solids and volatiles into planet-forming regions remains an open question. We present results from t…

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

Survival of Protoplanetary Disks in Upper Scorpius from Population Synthesis Models with External Photoevaporation

Jingyi Ping, Rossella Anania, Paola Pinilla +1

We present population synthesis models of viscous protoplanetary disks subject to mild external far-ultraviolet (FUV) radiation fields (G). Our simul…

astro-ph.EP2026

Probing Dust in the MWC 480 Disk from Millimeter to Centimeter Wavelengths

Yangfan Shi, Feng Long, Enrique Macías +12

We present deep, high-resolution (100 mas) Karl G. Jansky Very Large Array (VLA) Ka-band (9.1 mm) observations of the disk around MWC 480, and infer dust properties through a…

astro-ph.EP2026★ 2 cited

Models and Observational Predictions of Dust Traps in Protoplanetary Discs

Paola Pinilla

This manuscript investigates the impact of key dust evolution parameters on dust retention and trapping in protoplanetary discs. Using models with and without pressure bumps, combi…

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…

astro-ph.IM2025

Transformational astrophysics and exoplanet science with Habitable Worlds Observatory's High Resolution Imager

Vincent Van Eylen, Richard Massey, Saeeda Awan +167

Habitable Worlds Observatory (HWO) will be NASA's flagship space telescope of the 2040s, designed to search for life on other planets and to transform broad areas of astrophysics.…

astro-ph.EP2025

Observational evidence for a possible link between PAH emission and dust trap locations in protoplanetary disks

Nienke van der Marel, Niels F. W. Ligterink, Ryan van der Werf +4

Polycyclic Aromatic Hydrocarbons (PAHs) are commonly detected in protoplanetary disks, but it is unclear what causes the wide range of intensities across the samples. In this work,…

astro-ph.EP2025

Sculpting protoplanetary discs -- modelling circumbinary cavities at observable scales with radiation hydrodynamics

Anna B. T. Penzlin, Alexandros Ziampras, Nicolas T. Kurtovic +2

Observations of circumbinary discs reveal inner cavities, with their shape and size varying strongly between different systems. The structure of the cavity is determined by the com…

astro-ph.SR2025

Discovery of an Accretion Burst in a Free-Floating Planetary-Mass Object

V. Almendros-Abad, A. Scholz, B. Damian +7

We report the discovery of a long-lasting burst of disk accretion in Cha J11070768-7626326 (Cha 1107-7626), a young, isolated, 5-10 M object. In spectra taken…

astro-ph.EP2025

Observational Constraints on Evolution of Dust Disc Properties in Upper Scorpius

Paola Pinilla, Anibal Sierra, Nicolas T. Kurtovic +8

Protoplanetary discs in the Upper Scorpius star-forming region are excellent laboratories to investigate late stages of planet formation. In this work, we analyse the morphology of…

astro-ph.EP2025

Discovery of H Emission from a Protoplanet Candidate Around the Young Star 2MASS J16120668-3010270 with MagAO-X

Jialin Li, Laird M. Close, Feng Long +32

2MASS J16120668-3010270 (hereafter 2MJ1612) is a young M0 star that hosts a protoplanetary disk in the Upper Scorpious star-forming region. Recent ALMA observations of 2MJ1612 show…