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Related papers: Young globular clusters in NGC 1316

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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…

Astrophysics of Galaxies · Physics 2022-08-17 Svea Hernandez , Autumn Winch , Søren Larsen , Bethan L. James , Logan Jones

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 the results of a meta-analysis of Keck spectra of extragalactic globular clusters (GCs) in a sample of eight galaxies, ranging from dwarfs to massive ellipticals. We infer ages for the metal-poor and metal-rich GCs in these…

Astrophysics · Physics 2019-08-15 Jay Strader , Jean P. Brodie , A. J. Cenarro , Michael A. Beasley , Duncan A. Forbes

We studied the star cluster population properties in the nearby collisional ring galaxy NGC 922 using HST/WFPC2 photometry and population synthesis modeling. We found that 69% of the detected clusters are younger than 7 Myr, and that most…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Anne Pellerin , Gerhardt R. Meurer , Kenji Bekki , Debra M. Elmegreen , O. Ivy. Wong , Patricia Knezek

We present multi-wavelength imagery of the merger remnant galaxy NGC 1316 with an objective to study the content of dust and its association with the other phases of the ISM. Color-index maps as well as extinction maps derived for this…

Cosmology and Nongalactic Astrophysics · Physics 2018-08-08 S. P. Deshmukh , B. T. Tate , N. D. Vagshette , S. K. Pandey , M. K. Patil

This is the second paper in our series about the search for multiple populations in Magellanic Cloud star clusters using the Hubble Space Telescope. Here we report the detection of multiple stellar populations in the colour-magnitude…

We review our recent studies of the globular cluster system of NGC 5128. First, we have obtained low-resolution, high signal-to-noise spectroscopy of 72 globular clusters using Gemini-S/GMOS to obtain the ages, metallicities, and the level…

Astrophysics of Galaxies · Physics 2015-05-14 Kristin A. Woodley , Matias Gomez

Globular cluster systems (GCS) frequently show a bi-modal distribution of the cluster integrated colours. This work explores the arguments to support the idea that the same feature is shared by the diffuse stellar population of the galaxy…

Astrophysics · Physics 2009-11-10 Juan C. Forte , Favio Faifer , Doug Geisler

Large samples of globular clusters (GC) with precise multi-wavelength photometry are becoming increasingly available and can be used to constrain the formation history of galaxies. We present the results of an analysis of Milky Way (MW) and…

We deduce the globular cluster formation history of the nearby elliptical NGC 5128 by using a phenomenological chemical enrichment model to reproduce its observed metallicity distribution function (MDF). We derive the observed MDF using…

Astrophysics · Physics 2007-05-23 S. Kaviraj , I. Ferreras , S. -J. Yoon , S. K. Yi

From spectrophotometric and chemical evolutionary modelling of interacting and merging galaxies we predict abundances of burst stars and of globular clusters (GCs) that may be formed in strong bursts. Observations of young GCs in merger…

Astrophysics · Physics 2007-05-23 Uta Fritze - v. Alvensleben , Andi Burkert

Based on a new large, homogeneous photometric database of 35 Galactic globular clusters (GGCs), a set of distance and reddening independent relative age indicators has been measured. The observed D(V-I)_2.5 and D(V)(HB-TO) vs. metallicity…

Astrophysics · Physics 2009-10-31 A. Rosenberg , I. Saviane , G. Piotto , A. Aparicio

We present an analysis of the circumnuclear structure of NGC 1316 using both near-infrared imaging and stellar kinematics. 2D decomposition of the images suggests the presence of a structure that resembles inner gaseous spiral arms, at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Y. Beletsky , D. A. Gadotti , A. Moiseev , J. Alves , A. Kniazev

We study the globular cluster (GC) system of the dust-lane elliptical galaxy NGC 6702, using B, V and I-band photometric observations carried out at the Keck telescope. This galaxy has a spectroscopic age of ~2Gyrs suggesting recent…

Astrophysics · Physics 2009-10-31 A. Georgakakis , D. A. Forbes , J. P. Brodie

Visual and near-infrared colours are used to identify intermediate-age globular cluster in early-type galaxies. In NGC5846 and NGC4365 colour-colour diagrams (V-I vs. V-K) reveal a sub-population in the globular cluster systems with an age…

We present the results of combined optical and near-infrared photometry for the globular cluster systems of the giant ellipticals IC 4051 and NGC 3311. We use the reduced age-metallicity degeneracy in (V-I) vs.(V-H) color-color diagrams to…

Astrophysics · Physics 2009-11-11 M. Hempel , D. Geisler , D. W. Hoard , W. E. Harris

We present measurements of ages, metallicities, and [alpha/Fe] ratios for 16 globular clusters (GC) in NGC 147, NGC 185, and NGC 205 and of the central regions of the diffuse galaxy light in NGC 185, and NGC 205. Our results are based on…

Astrophysics · Physics 2009-11-11 M. E. Sharina , V. L. Afanasiev , T. H. Puzia

Hubble Space Telescope observations of globular clusters (GCs) in the Antennae galaxy show clusters of clusters, or regions in the galaxy that span hundreds of parsecs, where many of the GCs are doomed to collide, and eventually merge.…

Astrophysics of Galaxies · Physics 2015-03-19 Pau Amaro-Seoane , Symeon Konstantinidis , Patrick Brem , Márcio Catelan

We present HST Planetary Camera V and I~band images of the central region of the peculiar giant elliptical galaxy NGC 1316. The inner profile is well fit by a nonisothermal core model with a core radius of 0.41" +/- 0.02" (34 pc). At an…

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