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Related papers: Young Star Cluster Complexes in NGC 4038/39: Integ…

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The characterisation of the stellar population toward young high-mass star-forming regions allows to constrain fundamental cluster properties like distance and age. These are essential when using high-mass clusters as probes to conduct…

We present the results of determination of the age, helium mass fraction (Y) in terms of the used stellar evolutionary models, metallicity ([Fe/H]), and abundances of the elements C, O, Na, Mg, Ca, Ti, Cr and Mn for 26 globular clusters of…

Astrophysics of Galaxies · Physics 2020-09-07 M. E. Sharina , V. V. Shimansky , N. N. Shimanskaya

In this paper we derive ages and masses for 276 clusters in the merger galaxy NGC 3256. This was achieved by taking accurate photometry in four wavebands from archival HST images. Photometric measurements are compared to synthetic stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Q. E. Goddard , N. Bastian , R. C. Kennicutt

We present new optical spectroscopy with FLAMES/VLT, near-IR imaging with HAWK-I/VLT, and 870 micron mapping with APEX/LABOCA of the Coronet cluster. The optical data allow to estimate spectral types, extinction and the presence of…

Solar and Stellar Astrophysics · Physics 2015-05-28 Aurora Sicilia-Aguilar , Thomas Henning , Jouni Kainulainen , Veronica Roccatagliata

We present new near-infrared spectroscopic observations of the outer edges of the young stellar cluster around the supermassive black hole at the Galactic center. The observations show a break in the surface-density profile of young stars…

Astrophysics of Galaxies · Physics 2015-08-06 Morten N. Støstad , Tuan Do , Norm Murray , Jessica R. Lu , Sylvana Yelda , Andrea M. Ghez

We discuss HST FOS ultraviolet spectroscopy and NICMOS near-infrared photometry of four young super star clusters in the central region of the irregular starburst galaxy NGC 1569. The new observations coupled with previous HST WFPC2…

Astrophysics · Physics 2009-11-06 L. Origlia , C. Leitherer , A. Aloisi , L. Greggio , M. Tosi

Integrated spectra have been obtained of 31 star clusters in the Magellanic Clouds (MC) and of 4 Galactic globular clusters. The spectra cover the wavelength range 3500 -- 4700 Angstroms at a resolution of 3.2 Angstroms FWHM. The MC…

Astrophysics · Physics 2007-05-23 Andrew. J. Leonardi , James. A. Rose

The {\it Planck} Galactic Cold Clumps (PGCCs) are the possible representations of the initial conditions and the very early stages of star formation. With an objective to understand better the star and star cluster formation, we probe the…

Astrophysics of Galaxies · Physics 2018-09-19 Somnath Dutta , Soumen Mondal , Manash R Samal , Jessy Jose

We present 1" (<100 pc) resolution maps of millimeter emission from five molecules-CN, HCN, HCO+, CH3OH, and HNCO-obtained towards NGC 4038, which is the northern galaxy of the mid-stage merger, Antennae galaxies, with the Atacama Large…

We present a study of the hierarchical clustering of the young stellar clusters in six local (3--15 Mpc) star-forming galaxies using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy…

We present a multi-wavelength analysis of the history of star formation in the W3 complex. Using deep, near-infrared ground-based images, combined with images obtained with Spitzer and Chandra observatories, we identified and classified…

Solar and Stellar Astrophysics · Physics 2015-09-09 C. G. Román-Zúñiga , J. Ybarra , G. Megias , M. Tapia , E. A. Lada , J. F. Alves

We present a study of the properties of the star-cluster systems around pseudo-bulges of late-type spiral galaxies using a sample of 11 galaxies with distances from 17 to 37 Mpc. Star clusters are identified from multiband HST ACS and WFPC2…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Daiana Di Nino , Michele Trenti , Massimo Stiavelli , C. Marcella Carollo , Claudia Scarlata , Rosemary F. G. Wyse

We measure the radii and two-dimensional light profiles of a large sample of young, massive star clusters in M83 using archival HST/WFC3 imaging of seven adjacent fields. We use GALFIT to fit the two-dimensional light profiles of the…

We present the results of a {\it Hubble Space Telescope} ACS/HRC FUV, ACS/WFC optical study into the cluster populations of a sample of 22 Luminous Infrared Galaxies in the Great Observatories All-Sky LIRG Survey. Through integrated…

We report velocity-resolved spectroscopy of infrared hydrogen recombination lines in the interacting region of the Antennae galaxies (NGC 4038/4039). It generally has been assumed that the active star formation found there is due to the…

Astrophysics · Physics 2009-11-06 M. C. Liang , T. R. Geballe , K. Y. Lo , D. -C. Kim

We present results from a study of proto-globular cluster candidates in the interacting galaxy system Arp 284 (NGC 7714/5) using data from the Hubble Space Telescope. Previous studies of the Antennae and M51 have suggested that the majority…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Bradley W. Peterson , Curtis Struck , Beverly J. Smith , Mark Hancock

We have previously reported on chemical abundance trends with evolutionary state in the globular cluster NGC 6397 discovered in analyses of spectra taken with FLAMES at the VLT. Here, we reinvestigate the FLAMES-UVES sample of 18 stars,…

Solar and Stellar Astrophysics · Physics 2012-09-24 T. Nordlander , A. J. Korn , O. Richard , K. Lind

We present new high spectral resolution VLT/UVES spectroscopy and archival HST/STIS imaging and spectroscopy of the giant HII region Tol89 in NGC5398. From optical and UV HST images, we find that the star-forming complex as a whole contains…

Astrophysics · Physics 2009-11-11 F. Sidoli , L. J. Smith , P. A. Crowther

Ultraviolet, optical and near infrared images of the nearby (D ~ 5.5 Mpc) SBm galaxy NGC 1311, obtained with the Hubble Space Telescope, reveal a small population of 13 candidate star clusters. We identify candidate star clusters based on a…

(Abridged) We study the nuclear star clusters in spiral galaxies of various Hubble types using spectra obtained with STIS on-board HST. We observed the nuclear clusters in 40 galaxies, selected from two previous HST/WFPC2 imaging surveys.…

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