229 citations · 4.2k across the 91 of their papers we have counts for
76 papers · 1 filter
Universal Upper End of the Stellar Initial Mass Function in the Young and Compact LEGUS clusters
Dooseok Escher Jung, Daniela Calzetti, Matteo Messa +21
We investigate the variation in the upper end of stellar initial mass function (uIMF) in 375 young and compact star clusters in five nearby galaxies within Mpc. All the yo…
The Ages and Metallicities of the Globular Clusters in the Sparkler
Angela Adamo, Christopher Usher, Joel Pfeffer +1
JWST observations of the strongly lensed galaxy The Sparkler have revealed a population of gravitationally bound globular cluster (GC) candidates. Different analyses have resulted…
Constraining the LyC escape fraction from LEGUS star clusters with SIGNALS HII region observations: A pilot study of NGC 628
J. W. Teh, K. Grasha, M. R. Krumholz +23
The ionising radiation of young and massive stars is a crucial form of stellar feedback. Most ionising (Lyman-continuum; LyC, ) photons are absorbed close to the stars tha…
An extremely metal poor star complex in the reionization era: Approaching Population III stars with JWST
E. Vanzella, F. Loiacono, P. Bergamini +31
We present JWST/NIRSpec integral field spectroscopy (IFS) of a lensed Population III candidate stellar complex (dubbed Lensed And Pristine 1, LAP1), with a lensing-corrected stella…
JWST NIRSpec spectroscopy of the triply-lensed galaxy MACS0647JD
Tiger Yu-Yang Hsiao, Abdurro'uf, Dan Coe +38
We present JWST/NIRSpec prism spectroscopy of MACS0647-JD, the triply-lensed candidate discovered in HST imaging and spatially resolved by JWST imaging into two compone…
On the evolution of the size of Lyman alpha halos across cosmic time: no change in the circumgalactic gas distribution when probed by line emission
Axel Runnholm, Matthew J. Hayes, Yu-Heng Lin +18
Lyman (Ly) is now routinely used as a tool for studying high-redshift galaxies and its resonant nature means it can trace neutral hydrogen around star-forming galaxies. Inte…
Search strategies for supermassive stars in young clusters and application to nearby galaxies
A. Kuruvanthodi, D. Schaerer, M. Messa +4
Supermassive stars (SMS) with masses , formed by runaway collisions in young, massive, and dense star clusters have been invoked as a possible soluti…
Dust Buried Compact Sources in the Dwarf Galaxy NGC 4449
Daniela Calzetti, Sean T. Linden, Timothy McQuaid +10
Multi-wavelength images from the Hubble Space Telescope covering the wavelength range 0.27-1.6 m show that the central area of the nearby dwarf galaxy NGC4449 contains several t…
Spatially Resolved Stellar Populations of Galaxies in WHL0137-08 and MACS0647+70 Clusters as Revealed by JWST: How do Galaxies Grow and Quench Over Cosmic Time?
Abdurro'uf, Dan Coe, Intae Jung +20
We study the spatially resolved stellar populations of 444 galaxies at in two clusters (WHL0137-08 and MACS0647+70) and a blank field, combining imaging data from HST a…
Molecular gas cloud properties at revealed by the superb angular resolution achieved with ALMA and gravitational lensing
Miroslava Dessauges-Zavadsky, Johan Richard, Françoise Combes +6
Current observations favour that the massive ultraviolet-bright clumps with a median stellar mass of , ubiquitously observed in galaxies, are star-…
Tidally offset neutral gas in Lyman continuum emitting galaxy Haro 11
Alexandra Le Reste, John M. Cannon, Matthew J. Hayes +10
Around 400 million years after the Big Bang, the ultraviolet emission from star-forming galaxies reionized the Universe. Ionizing radiation (Lyman Continuum, LyC) is absorbed by co…
Fraction of Stars in Clusters for the LEGUS Dwarf Galaxies
D. O. Cook, J. C. Lee, A. Adamo +20
We study the young star cluster populations in 23 dwarf and irregular galaxies observed by the HST Legacy ExtraGalactic Ultraviolet Survey (LEGUS), and examine relationships betwee…
Two lensed star candidates at behind the galaxy cluster MACS J0647.7+7015
Ashish Kumar Meena, Adi Zitrin, Yolanda Jiménez-Teja +24
We report the discovery of two extremely magnified lensed star candidates behind the galaxy cluster MACS J0647.7+7015, in recent multi-band James Webb Space Telescope (JWST) NIRCam…
JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc
E. Vanzella, A. Claeyssens, B. Welch +27
Star cluster formation in the early universe and their contribution to reionization remains to date largely unconstrained. Here we present JWST/NIRCam imaging of the most highly ma…
JWST reveals a possible galaxy merger in triply-lensed MACS0647JD
Tiger Yu-Yang Hsiao, Dan Coe, Abdurro'uf +63
MACS0647JD is a triply-lensed galaxy originally discovered with the Hubble Space Telescope. Here we report new JWST imaging, which clearly resolves MACS0647JD as ha…
CLusters in the Uv as EngineS (CLUES): I. Survey presentation \& FUV spectral analysis of the stellar light
M. Sirressi, A. Adamo, M. Hayes +17
The CLusters in the Uv as EngineS (CLUES) survey is a Cosmic Origins Spectrograph (COS) campaign aimed at acquiring the 1130 to 1770 Å, restframe spectroscopy of very young (<20 My…
Multiply lensed star forming clumps in the A521-sys1 galaxy at redshift 1
Matteo Messa, Miroslava Dessauges-Zavadsky, Johan Richard +6
We study the population of star-forming clumps in A521-sys1, a system gravitationally lensed by the foreground () cluster Abell 0521. The galaxy presents o…
Star formation at the smallest scales; A JWST study of the clump populations in SMACS0723
Adélaïde Claeyssens, Angela Adamo, Johan Richard +3
We present the clump populations detected in 18 lensed galaxies at redshifts 1 to 8.5 within the lensing cluster field SMACS0723. The recent JWST Early Release Observations of this…
Star Cluster Formation and Evolution in M101: An Investigation with the Legacy Extragalactic UV Survey
S. T. Linden, G. Perez, D. Calzetti +13
We present Hubble Space Telescope WFC3/UVIS (F275W, F336W) and ACS/WFC optical (F435W, F555W, and F814W) observations of the nearby grand-design spiral galaxy M101 as part of the L…
Stellar feedback in M83 as observed with MUSE -- II. Analysis of the HII region population: ionisation budget and pre-SN feedback
Lorenza Della Bruna, Angela Adamo, Anna F. McLeod +11
We study pre-supernova feedback in a sample of 4700 HII regions in the nearby spiral galaxy M83, identified on their H emission. We pectroscopically identify Wolf-Rayet (…
The Dense Gas Mass Fraction and the Relationship to Star Formation in M51
Mark Heyer, Benjamin Gregg, Daniela Calzetti +15
Observations of 12CO J=1-0 and HCN J=1-0 emission from NGC 5194 (M51) made with the 50~meter Large Millimeter Telescope and the SEQUOIA focal plane array are presented. Using the H…
Stellar feedback in M83 as observed with MUSE -- I. Overview, an unprecedented view of the stellar and gas kinematics and evidence of outflowing gas
Lorenza Della Bruna, Angela Adamo, Philippe Amram +14
We present a large VLT/MUSE mosaic (3.8 x 3.8 kpc) of the nearby spiral galaxy M83, with a spatial resolution ~20 pc. We obtained the kinematics of the stars and ionised gas, and c…
Haro 11 -- Untying the knots of the nuclear starburst
M. Sirressi, A. Adamo, M. Hayes +7
Star formation is a clustered process that regulates the structure and evolution of galaxies. We investigate this process in the dwarf galaxy Haro 11, forming stars in three knots…
The impact of pre-supernova feedback and its dependence on environment
Anna F. Mcleod, Ahmad A. Ali, Mélanie Chevance +8
Integral field units enable resolved studies of a large number of star-forming regions across entire nearby galaxies, providing insight on the conversion of gas into stars and the…