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RELICS: Small-scale Star Formation in Lensed Galaxies at z = 6–10
The Astrophysical Journal, 2023 Detailed observations of star-forming galaxies at high redshift are critical to understanding the formation and evolution of the earliest galaxies. Gravitational lensing provides an important boost, allowing observations at physical scales unreachable in
Brian Welch +15 more
doaj +1 more source
THE EVOLUTIONARY TRACKS OF YOUNG MASSIVE STAR CLUSTERS [PDF]
The Astrophysical Journal, 2014 Stars mostly form in groups consisting of a few dozen to several ten thousand members. For 30 years, theoretical models provide a basic concept of how such star clusters form and develop: they originate from the gas and dust of collapsing molecular clouds.
S. Pfalzner +4 more
openaire +2 more sources
Early-forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly
The Astrophysical Journal, 2023 Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profound implications for the star cluster formation and assembly processes. We
Sean C. Lewis +10 more
doaj +1 more source
Variability of young massive stars in the Arches cluster [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractWe present preliminary results of the first near-infrared variability study of the Arches cluster, using adaptive optics data from NIRI/Gemini and NACO/VLT. The goal is to discover eclipsing binaries in this young (2.5 ± 0.5 Myr), dense, massive cluster for which we will determine accurate fundamental parameters with subsequent spectroscopy ...
Markakis +5 more
openaire +3 more sources
X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*
The Astrophysical Journal, 2023 To date, the proposed observation of young stellar objects (YSOs) in the Galactic center still raises the question of where and how these objects could have formed due to the violent vicinity of Sgr A*.
Florian Peißker +12 more
doaj +1 more source
HOW TO FIND YOUNG MASSIVE CLUSTER PROGENITORS [PDF]
The Astrophysical Journal, 2012 We propose that bound, young massive stellar clusters form from dense clouds that have escape speeds greater than the sound speed in photo-ionized gas. In these clumps, radiative feedback in the form of gas ionization is bottled up, enabling star formation to proceed to sufficiently high efficiency so that the resulting star cluster remains bound even ...
Bressert E +5 more
openaire +2 more sources
Is the massive young cluster Westerlund I bound? [PDF]
Astronomy & Astrophysics, 2012 8 pages, 6 figures, accepted by A&A; Corrected mass estimate quoted from Negueruela et al. (2010)
Cottaar M. +3 more
openaire +3 more sources
Chemical Abundances of Young Massive Clusters in NGC 1313∗
The Astronomical Journal, 2022 Abstract We analyze spectroscopic observations of five young massive clusters (YMCs) in the barred spiral galaxy NGC 1313 to obtain detailed abundances from their integrated light. Our sample of YMCs was observed with the X-shooter spectrograph on the Very Large Telescope.
Svea Hernandez +4 more
openaire +4 more sources
An HST Study of the Substellar Population of NGC 2024
The Astrophysical Journal, 2023 We performed an HST/WFC3-IR imaging survey of the young stellar cluster NGC 2024 in three filters probing the 1.4 μ m H _2 O absorption feature, characteristic of the population of low-mass and substellar-mass objects down to a few Jupiter masses.
Massimo Robberto +8 more
doaj +1 more source
NGC 3603 — a Local Template for Massive Young Clusters [PDF]
Symposium - International Astronomical Union, 2002 We present a study of the star cluster associated with the massive Galactic HII region NGC 3603 based on near-IR broad- and narrowband observations taken with ISAAC/VLT under excellent seeing conditions (≤ 0.4″). We discuss color-color diagrams and address the impact of the high UV flux on the disk evolution of the low-mass stars.
Brandl, B. +5 more
openaire +3 more sources