activity
20132026
most citedX-shooter spectroscopy of young stars with disks. The TW Hydrae association as a probe of the final stages of disk accretion

50 citations · 83 across the 9 of their papers we have counts for

collaborators

12 papers

astro-ph.SR2026

Tracing star formation across the Rosette nebula using deep Spitzer imaging

Daniel Capela, Aleks Scholz, Koraljka Muzic +4

We present a deep large-scale infrared survey of young stellar objects in the Rosette Nebula. Our analysis is based on stacked archival Spitzer/IRAC images. The images have been tr…

astro-ph.GA2026

EWOCS-IX: JWST/NIRCam observations of Westerlund 2 - Identification of candidate substellar members

V. Almendros-Abad, M. G. Guarcello, K. Muzic +26

[Abridged] Investigating substellar populations in young massive clusters offers crucial insights into the formation of brown dwarfs (BDs) and the role of environmental conditions…

astro-ph.SR2026

Revealing the substellar population of IC 1396: A spectroscopic survey of brown dwarfs in the region

Belinda Damian, Jessy Jose, Aleks Scholz +7

We present a new spectroscopic view of the brown dwarf population in the young star-forming region IC 1396 and investigate the impact of environment on low-mass star formation. We…

astro-ph.EP2026

RV and TTV Measurements of Two Transiting Long-Period Giants around TOI-4600

Tong Hu, Zitao Lin, Sharon X. Wang +27

TOI-4600b and c, originally identified by the Transiting Exoplanet Survey Satellite (TESS) and reported by I. Mireles et al. (2023), are a rare pair of transiting long-period giant…

astro-ph.SR2026

The age sequence of young clusters in Perseus: Estimating ages from mass distributions

Tatiana Pavlidou, Aleks Scholz, Koraljka Muzic

Establishing ages for young clusters is key for properly tracking the star formation history of a region. In this paper we investigate a new approach to estimating ages for young p…

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

Spectroscopy of Free-Floating Planetary-Mass Objects and their disks with JWST

Belinda Damian, Aleks Scholz, Ray Jayawardhana +6

Free-floating planetary-mass objects (FFPMOs) are known to harbor disks at young ages. Here, we present 1-13 spectra for eight young FFPMOs with masses of 5-10 M$_\mathrm{Jup}…

astro-ph.EP2025

Detection of Hydrocarbons in the Disk around an Actively-Accreting Planetary-Mass Object

Laura Flagg, Aleks Scholz, V. Almendros-Abad +6

We present the 0.6--12-micron spectrum of Cha\,1107-7626, a 6-10 Jupiter-mass free-floating object in the 2\,Myr-old Chamaeleon-I star-forming region, from observations with…

astro-ph.EP2024★ 25 cited

The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-Floating Planets

Adam B. Langeveld, Aleks Scholz, Koraljka Mužić +9

The discovery and characterization of free-floating planetary-mass objects (FFPMOs) is fundamental to our understanding of star and planet formation. Here we report results from an…

astro-ph.SR2024★ 8 cited

Spectral characterization of young LT dwarfs

L. Piscarreta, K. Mužić, V. Almendros-Abad +1

We aim to provide a detailed characterization of near-infrared spectra for young LT brown dwarfs, including robust spectral typing, calibrating spectral indices, identifying possib…

astro-ph.SR2019★ 50 cited

X-shooter spectroscopy of young stars with disks. The TW Hydrae association as a probe of the final stages of disk accretion

L. Venuti, B. Stelzer, J. M. Alcalá +9

We investigate ongoing accretion activity in young stars in the TW Hydrae association (TWA, ~8-10 Myr), an ideal target to probe the final stages of disk accretion down to brown dw…

astro-ph.EP2013

ALMA and CARMA observations of Brown Dwarfs disks: testing the models of dust evolution

L. Ricci, L. Testi, A. Natta +4

The first steps toward planet formation involve the coagulation of small microscopic grains into larger and larger pebbles and rocks in gas-rich disks around young stars and brown…