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Related papers: Rotating stellar populations in the Fornax dSph ga…

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We present a comprehensive and detailed study of the stellar populations of the Fornax dwarf spheroidal galaxy. We analyse their spatial distributions along the main body of the galaxy, obtaining their surface density maps, together with…

Astrophysics of Galaxies · Physics 2015-11-04 Andrés del Pino , Antonio Aparicio , Sebastian L. Hidalgo

We present new radial velocity results for 176 stars in the Fornax dwarf spheroidal galaxy, of which at least 156 are probable Fornax members. We combine with previously published data to obtain a radial velocity sample with 206 stars, of…

As part of the DART project we have used the ESO/2.2m Wide Field Imager in conjunction with the VLT/FLAMES GIRAFFE spectrograph to study the detailed properties of the resolved stellar population of the Fornax dwarf spheroidal galaxy out to…

We present compelling evidence for the complexity of the Fornax dwarf spheroidal. By disentangling three different stellar subpopulations in its red giant branch, we are able to study in detail the dependence between kinematics and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 N. C. Amorisco , N. W. Evans

We present radial velocities and [Fe/H] abundances for 340 stars in the Fornax dwarf spheroidal from R~16,000 spectra. The targets have been obtained in the outer parts of the galaxy, a region which has been poorly studied before. Our…

Astrophysics of Galaxies · Physics 2014-12-03 Benjamin Hendricks , Andreas Koch , Matthew Walker , Christian I. Johnson , Jorge Penarrubia , Gerard Gilmore

We present deep photometry in the B,V and I filters from CTIO/MOSAIC for about 270.000 stars in the Fornax dwarf Spheroidal galaxy, out to a radius of r_ell\sim0.8 degrees. By combining the accurately calibrated photometry with the…

Astrophysics of Galaxies · Physics 2015-06-05 T. J. L. de Boer , E. Tolstoy , V. Hill , A. Saha , E. W. Olszewski , M. Mateo , E. Starkenburg , G. Battaglia , M. G. Walker

(abridged) We present B,V,I CCD photometry of about 40000 stars in four regions of the Fornax dSph. Using the resultant CMDs, many already known age-tracers are investigated, and new CMD features are also detected: we show that blue HB…

Astrophysics · Physics 2007-05-23 Ivo Saviane , Enrico V. Held , Gianpaolo Bertelli

The 31 brightest galaxies (m_B < 15 mag) inside the virial radius of the Fornax cluster were observed from the centres to the outskirts with the Multi Unit Spectroscopic Explorer on the Very Large Telescope. These observations provide…

Most ultra-compact dwarf galaxies (UCDs) and very massive globular clusters reside in nearby galaxy clusters or around nearby giant galaxies. Due to their distance (>Mpc) and compactness (r_eff<100pc) they are barely resolved, and thus it…

Astrophysics of Galaxies · Physics 2015-12-24 Michael Hilker

Fornax is one of the most massive dwarf spheroidal galaxies in the Local Group. The Fornax field star population is dominated by intermediate age stars but star formation was going on over almost its entire history. It has been proposed…

We present a new derivation of the star formation history (SFH) of the dSph galaxy Fornax in two central regions, characterised by unprecedented precision and age resolution. It reveals that star formation has proceeded in sharp bursts…

Astrophysics of Galaxies · Physics 2021-01-12 V. Rusakov , M. Monelli , C. Gallart , T. K. Fritz , T. Ruiz-Lara , E. J. Bernard , S. Cassisi

We present new dynamical models of dwarf spheroidal galaxies (dSphs) in which both the stellar component and the dark halo are described by analytic distribution functions that depend on the action integrals. In their most general form…

Astrophysics of Galaxies · Physics 2018-08-01 Raffaele Pascale , Lorenzo Posti , Carlo Nipoti , James Binney

Uniquely among the dwarf spheroidal (dSph) satellite galaxies of the Milky Way, Fornax hosts globular clusters. It remains a puzzle as to why dynamical friction has not yet dragged any of Fornax's five globular clusters to the centre, and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 David R. Cole , Walter Dehnen , Justin I. Read , Mark I. Wilkinson

Based on a deep imaging survey, we present the first homogeneous star formation history (SFH) of the Fornax dwarf spheroidal (dSph) galaxy. We have obtained two-filter photometry to a depth of B ~ 23 over the entire surface of Fornax, the…

Astrophysics · Physics 2009-11-13 Matthew G. Coleman , Jelte T. A. de Jong

The Fornax dwarf spheroidal galaxy has an anomalous number of globular clusters, five, for its stellar mass. There is a longstanding debate about a potential sixth globular cluster (Fornax~6) that has recently been `rediscovered' in DECam…

We present a study of the evolved stellar populations in the dwarf spheroidal galaxy Fornax based on JHK imaging photometry. The observations cover an 18.5x18.5 arcmin central area with a mosaic of NTT/SOFI images. Our data sample all the…

Astrophysics · Physics 2009-11-13 M. Gullieuszik , E. V. Held , L. Rizzi , I. Saviane , Y. Momany , S. Ortolani

The results of a photometric survey of the Fornax dwarf spheroidal galaxy are presented herein. Accurate photometry in two colours (V and I) was collected over a 10 square degree area centred on the Fornax system with the aim of searching…

Astrophysics · Physics 2009-11-10 M. G. Coleman , G. S. Da Costa , J. Bland-Hawthorn , K. C. Freeman

We discuss how different approaches to selecting member stars in kinematic samples of dwarf spheroidal galaxies affect the estimates of their mass and anisotropy of stellar orbits. We demonstrate that the selection of members is an…

Astrophysics · Physics 2007-12-17 Ewa L. Lokas , Jaroslaw Klimentowski , Radoslaw Wojtak

Using deep V, B-V wide-field photometry, we have conducted a new study of stellar over-densities in the Fornax dwarf spheroidal galaxy by determining detailed Star Formation Histories from Colour-Magnitude Diagram analysis. We have…

Astrophysics of Galaxies · Physics 2015-06-12 T. J. L. de Boer , E. Tolstoy , A. Saha , E. W. Olszewski
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