243 citations · 6.4k across the 138 of their papers we have counts for
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Extinction and Dust Geometry in M83 HII Regions: A Hubble Space Telescope/WFC3 Study
Guilin Liu, Daniela Calzetti, Sungryong Hong +7
We present HST/WFC3 narrow-band imaging of the starburst galaxy M83 targeting the hydrogen recombination lines (H, H and Pa), which we use to investigate the dust extincti…
Far-Ultraviolet Observations of Outflows from IR-Luminous Galaxies
Claus Leitherer, Rupali Chandar, Christy Tremonti +2
We obtained medium-resolution ultraviolet (UV) spectra between 1150 and 1450 Angstroms of the four UV-bright, infrared (IR)-luminous starburst galaxies IRAS F08339+6517, NGC 3256,…
Evidence for Two Distinct Stellar Initial Mass Functions : Revisiting the Effects of Cluster Dynamical Evolution
Dennis Zaritsky, Janet E. Colucci, Peter M. Pessev +2
We measure the velocity dispersions of six, galactic globular clusters using spatially integrated spectra, to test for the effects of internal dynamical evolution in the stellar ma…
An IMF Study of the Dwarf Starburst Galaxy NGC 4214
J. E. Andrews, D. Calzetti, R. Chandar +11
The production rate of ionizing photons in young < 8 Myr, unresolved stellar clusters in the nearby irregular galaxy NGC 4214 is probed using multi-wavelength Hubble Space Telescop…
Kinematics of Star Clusters in M101
Lesley Simanton, Rupali Chandar, Bryan Miller
We have identified a few thousand star clusters in the nearby, late-type spiral galaxy M101, including approximately 90 candidate ancient globular clusters (GCs), from multi-band H…
X-ray Binaries and Star Clusters in the Antennae: Optical Cluster Counterparts
Blagoy Rangelov, Rupali Chandar, Andrea Prestwich +1
We compare the locations of 82 X-ray binaries (XRBs) detected in the merging Antennae galaxies by Zezas et al., based on observations taken with the Chandra X-Ray Observatory, with…
Analysing star cluster populations with stochastic models: the HST/WFC3 sample of clusters in M83
Morgan Fouesneau, Ariane Lançon, Rupali Chandar +1
The majority of clusters in the Universe have masses well below 10^5 Msun. Hence their integrated fluxes and colors can be affected by the random presence of a few bright stars int…
The Connection Between X-ray Binaries and Star Clusters in NGC 4449
Blagoy Rangelov, Andrea H. Prestwich, Rupali Chandar
We present 23 candidate X-ray binaries with luminosities down to 1.8x10^36 erg/s, in the nearby starburst galaxy NGC 4449, from observations totaling 105 ksec taken with the ACIS-S…
Star Clusters as Tracers of Interactions in Stephan's Quintet (Hickson Compact Group 92)
K. Fedotov, S. C. Gallagher, I. S. Konstantopoulos +5
Stephan's Quintet (SQ) is a compact group of galaxies that exhibits numerous signs of interactions between its members. Using high resolution images of SQ in B438, V606, and I814 b…
The Evolution of Stellar Populations in the Outer Disks of Spiral Galaxies
Stacey Alberts, Daniela Calzetti, Hui Dong +8
We investigate recent star formation in the extended ultraviolet (XUV) disks of five nearby galaxies (NGC 0628, NGC 2090, NGC 2841, NGC 3621, and NGC 5055) using a long wavelength…
Star Clusters in the Tidal Tails of Interacting Galaxies: Cluster Populations Across a Variety of Tail Environments
B. Mullan, I. S. Konstantopoulos, A. A. Kepley +17
We have searched for compact stellar structures within 17 tidal tails in 13 different interacting galaxies using F606W- and F814W- band images from the Wide Field Planetary Camera…
A New Method for Measuring the Upper End of the IMF
Daniela Calzetti, Rupali Chandar, Janice C. Lee +3
A method is presented here for investigating variations in the upper end of the stellar Initial Mass Function (IMF) by probing the production rate of ionizing photons in unresolved…
The Formation of Spheroids in Early-Type Spirals: Clues From Their Globular Clusters
Aparna Maybhate, Paul Goudfrooij, Rupali Chandar +1
We use deep Hubble Space Telescope images taken with the Advanced Camera for Surveys (ACS) in the F475W and F814W filters to investigate the globular cluster systems in four edge-o…
Galaxy evolution in a complex environment: a multi-wavelength study of HCG 7
I. S. Konstantopoulos, S. C. Gallagher, K. Fedotov +17
[Abridged] The environment where galaxies are found heavily influences their evolution. Close groupings, like the cores of galaxy clusters or compact groups, evolve in ways far mor…
A Method for Measuring Variations in the Stellar Initial Mass Function
D. Calzetti, R. Chandar, J. C. Lee +3
We present a method for investigating variations in the upper end of the stellar Initial Mass Function (IMF) by probing the production rate of ionizing photons in unresolved, compa…
Deep HST/ACS Photometry of the M81 Halo
Patrick R. Durrell, Ata Sarajedini, Rupali Chandar
We present a deep color-magnitude diagram for individual stars in the halo of the nearby spiral galaxy M81, at a projected distance of 19 kpc, based on data taken with the Advanced…
Hierarchical Structure Formation and Modes of Star Formation in Hickson Compact Group 31
S. C. Gallagher, P. R. Durrell, D. M. Elmegreen +12
The handful of low-mass, late-type galaxies that comprise Hickson Compact Group 31 is in the midst of complex, ongoing gravitational interactions, evocative of the process of hiera…
Looking for a link between Gas Content of Dwarf Galaxies and Properties of their Globular Cluster systems
M. E. Sharina, T. H. Puzia, R. Chandar +2
Star clusters are fundamental building blocks of galaxies. Their formation is related to the density and pressure in progenitor molecular clouds and their environmental conditions.…
SAO-6m Telescope Spectroscopic Observations of Globular Clusters in Nearby Galaxies
Margarita E. Sharina, Rupali Chandar, Thomas H. Puzia +2
We present the results of medium-resolution spectroscopy of 28 globular clusters (GCs) in six nearby galaxies of different luminosities and morphological types, situated in: M33 (1…
Tidal Tails in Interacting Galaxies: Formation of Compact Stellar Structures
B. Mullan, J. C. Charlton, I. S. Konstantopoulos +17
We have used V- and I- band images from the Hubble Space Telescope (HST) to identify compact stellar clusters within the tidal tails of twelve different interacting galaxies. The s…
Population Parameters of Intermediate-Age Star Clusters in the Large Magellanic Cloud. I. NGC 1846 and its Wide Main Sequence Turnoff
Paul Goudfrooij, Thomas H. Puzia, Vera Kozhurina-Platais +1
The Advanced Camera for Surveys on board the Hubble Space Telescope has been used to obtain deep, high-resolution images of the intermediate-age star cluster NGC 1846 in the Large…