activity
20142026
most citedMapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry

149 citations · 1.4k across the 50 of their papers we have counts for

collaborators

50 papers

astro-ph.SR2026

Rotation in the Lagoon Nebula with K2

L. M. Rebull, A. M. Cody, L. Venuti +2

A low-mass star's rotation rate drives its magnetic field, and in the case of young stars, also affects accretion and planetary formation. Observations of the rotation rates of you…

astro-ph.SR2026

Preparing for the Early eVolution Explorer: Photometric Diagnostics of Magnetospheric Accretion Geometry in Young Stellar Objects

Laura Venuti, Connor E. Robinson, Ann Marie Cody +13

The inner disk truncation radius, , plays a crucial role in the regulation of star-disk interaction and the early evolution of star-disk-planet systems; however, measuring thi…

astro-ph.EP2026

Exoplanet System Architecture: Sculpting the Inner Regions

Mark R. Swain, Geoffrey Bryden, Jonathan C. Tan +14

In this study, we seek to improve our understanding of the competing roles of disk-driven and planet-planet dynamical migration in sculpting planetary system architecture in the in…

astro-ph.EP2026

Preparing for the Early eVolution Explorer: Detecting the Primordial, Transiting Exoplanet Population

George Zhou, James G. Rogers, Jennifer A. Burt +17

The close-in small planet population may be formed either with hydrogen/helium dominated envelopes or with water-rich interiors. Both scenarios reproduce the present day planet pop…

astro-ph.SR2025

The mass distribution of clumpy accretion onto the nearby young star TW Hya

Tao Ji, Javier Serna, Gregory J. Herczeg +12

The proliferation of high time-resolution and decades-long monitoring of classical T Tauri stars provides a vast opportunity to test the variability of the star-disk connections. H…

astro-ph.EP2025

TESS Discovers a Second System of Transiting Exocomets in the Extreme Debris Disk of RZ Psc

Adalyn Gibson, Meredith A. MacGregor, Ward S. Howard +9

We present the TESS discovery of only the second system of transiting exocomets with a sufficient number of events to measure the size distribution in the RZ Psc system, enabling c…

astro-ph.SR2025★ 8 cited

PENELLOPE VII: Revisiting empirical relations to measure accretion luminosity

E. Fiorellino, J. M. Alcalá, C. F. Manara +10

The accretion luminosity (Lacc) in young, low-mass stars is crucial for understanding stellar formation, but direct measurements are often hindered by limited spectral coverage and…

astro-ph.SR2025

The ODYSSEUS Survey. Characterizing magnetospheric geometries and hotspot structures in T Tauri stars

Caeley V. Pittman, C. C. Espaillat, Connor E. Robinson +20

Magnetospheric accretion is a key process that shapes the inner disks of T Tauri stars, controlling mass and angular momentum evolution. It produces strong ultraviolet and optical…

astro-ph.SR2025

Hunting for UVdim stars in Galactic Open clusters. Clues from ultraviolet photometry

G. Cordoni, A. P. Milone, L. Casagrande +7

Split main-sequences (MSs) and extended main-sequence turn-offs (eMSTOs) have been observed in nearly all Magellanic Clouds clusters younger than 2 Gyr. More recently, Hubble Space…

astro-ph.SR2025★ 2 cited

Do accretion-powered stellar winds help spin down T Tauri stars?

Lukas Gehrig, Eric Gaidos, Laura Venuti +2

How T Tauri stars remain slowly rotating while still accreting material is a long-standing puzzle. Current models suggest that these stars may lose angular momentum through magneto…

astro-ph.EP2024

Preparing for the Early eVolution Explorer: Characterizing the photochemical inputs and transit detection efficiencies of young planets using multiwavelength flare observations by TESS and Swift

Ward S. Howard, Meredith A. MacGregor, Adina D. Feinstein +6

Ultraviolet flare emission can drive photochemistry in exoplanet atmospheres and even serve as the primary source of uncertainty in atmospheric retrievals. Additionally, flare ener…

astro-ph.SR2024

Using the Ca II lines in T Tauri stars to infer the abundance of refractory elements in the innermost disk regions

Marbely Micolta, Nuria Calvet, Thanawuth Thanathibodee +5

We present a study of the abundance of calcium in the innermost disk of 70 T Tauri stars in the star-forming regions of Chamaeleon I, Lupus and Orion OB1b. We use calcium as a prox…

astro-ph.SR2024

A Multi-wavelength, Multi-epoch Monitoring Campaign of Accretion Variability in T Tauri Stars from the ODYSSEUS Survey. III. Optical Spectra

John Wendeborn, Catherine C. Espaillat, Thanawuth Thanathibodee +20

Classical T Tauri Stars (CTTSs) are highly variable stars that possess gas- and dust-rich disks from which planets form. Much of their variability is driven by mass accretion from…

astro-ph.SR2024

FitteR for Accretion ProPErties of T Tauri stars (FRAPPE): A new approach to use Class III spectra to derive stellar and accretion properties

R. A. B. Claes, J. Campbell-White, C. F. Manara +10

Studies of the stellar and accretion properties of classical T Tauri stars (CTTS) require comparison with photospheric spectral templates. Here we aim at expanding the currently av…

astro-ph.SR2024★ 10 cited

Long period modulation of the classical T Tauri star CI Tau: evidence for an eccentric close-in massive planet at 0.17 au

R. Manick, A. P. Sousa, J. Bouvier +13

Detecting planets within protoplanetary disks around young stars is essential for understanding planet formation and evolution. However, planet detection using the radial velocity…

astro-ph.SR2024★ 6 cited

Circumstellar disk accretion across the Lagoon Nebula: the influence of environment and stellar mass

L. Venuti, A. M. Cody, G. Beccari +9

Pre-main sequence disk accretion is pivotal in determining the final stellar properties and the early conditions for close-in planets. We aim to establish the impact of internal (s…

astro-ph.SR2023★ 1 cited

Twenty-Five Years of Accretion onto the Classical T Tauri Star TW Hya

Gregory J. Herczeg, Yuguang Chen, Jean-Francois Donati +39

Accretion plays a central role in the physics that governs the evolution and dispersal of protoplanetary disks. The primary goal of this paper is to analyze the stability over time…

astro-ph.GA2023★ 14 cited

Rubin Observatory LSST Stars Milky Way and Local Volume Star Clusters Roadmap

Christopher Usher, Kristen C. Dage, Léo Girardi +26

The Vera C. Rubin Observatory will undertake the Legacy Survey of Space and Time, providing an unprecedented, volume-limited catalog of star clusters in the Southern Sky, including…

astro-ph.SR2023★ 16 cited

PENELLOPE IV. A comparison between optical forbidden lines and UV lines in the Orion OB1b and -Ori associations

M. Gangi, B. Nisini, C. F. Manara +17

Observing the spatial distribution and excitation processes of atomic and molecular gas in the inner regions (< 20 au) of young (< 10 Myr) protoplanetary disks helps us to understa…

astro-ph.SR2023★ 10 cited

Empirical Determination of the Lithium 6707.856 Å Wavelength in Young Stars

Justyn Campbell-White, Carlo F. Manara, Aurora Sicilia-Aguilar +20

Absorption features in stellar atmospheres are often used to calibrate photocentric velocities for kinematic analysis of further spectral lines. The Li feature at 6708 Å is…

astro-ph.GA2023★ 4 cited

Rubin LSST observing strategies to maximize volume and uniformity coverage of Star Forming Regions in the Galactic Plane

L. Prisinzano, R. Bonito, A. Mazzi +9

A complete map of the youngest stellar populations of the Milky Way in the era of all-sky surveys, is one of the most challenging goals in modern astrophysics. The characterisation…

astro-ph.SR2023★ 13 cited

Young stellar objects, accretion disks, and their variability with Rubin Observatory LSST

R. Bonito, L. Venuti, S. Ustamujic +14

Vera C. Rubin Observatory, through the Legacy Survey of Space and Time (LSST), will allow us to derive a panchromatic view of variability in young stellar objects (YSOs) across all…

astro-ph.SR2023★ 10 cited

Lyman-alpha Scattering Models Trace Accretion and Outflow Kinematics in T Tauri Systems

Nicole Arulanantham, Max Gronke, Eleonora Fiorellino +18

T Tauri stars produce broad Lyman-alpha emission lines that contribute 88% of the total UV flux incident on the inner circumstellar disks. Lyman-alpha photons are generated a…

astro-ph.GA2022★ 15 cited

Spatial and dynamical structure of the NGC 2264 star-forming region

E. Flaccomio, G. Micela, G. Peres +7

The processes that lead from molecular clouds to protostars, stellar associations, and the evolution of both, are active research topics. The target of this study, NGC2264, is a be…