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Related papers: Dwarf galaxies in the Local Group: the VLT perspec…

200 papers

The identification of the carrier(s) of diffuse interstellar bands (DIBs) is one of the oldest mysteries in stellar spectroscopy. With the advent of 8-10m-class telescopes substantial progress has been made in measuring the properties of…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 Lex Kaper

Weak gravitational lensing of distant galaxies can probe the total projected mass distribution of foreground gravitational structures on all scales and has been used successfully to map the projected mass distribution of rich intermediate…

Astrophysics · Physics 2007-05-23 L. Van Waerbeke , Y. Mellier

We present observations of 82 Local Group dwarf galaxy candidates, of which 62 were chosen visually from ESO-SRC survey plates of the southern sky (32 of which were not previously catalogued) and the rest suggested by various sources in the…

Astrophysics · Physics 2009-11-07 Alan B. Whiting , G. K. T. Hau , Mike Irwin

Experiments are looking for diffuse brown dwarfs in the dark galactic halo through the gravitational lens effect. If brown dwarfs are clumped in dark clusters, the event rate is not changed, but events are spatially clustered, and stars…

Astrophysics · Physics 2007-05-23 Alain Bouquet , Jean Kaplan , Jean-Manuel Verschaeve

With the immense number of images, data, and sources that Euclid will deliver, the consortium will be in a unique position to create/provide/construct legacy catalogues. The latter will have exquisite imaging quality and good near-infrared…

Astrophysics of Galaxies · Physics 2022-11-22 Jenny G. Sorce , Antonino Troja , Isaac Tutusaus

We review the formation and evolution of fossil groups and clusters from both the theoretical and the observational points of view. In the optical band, these systems are dominated by the light of the central galaxy. They were interpreted…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-28 J. Alfonso L. Aguerri , Stefano Zarattini

Wolf-Rayet stars (WRs) represent the end of a massive star's life as it is about to turn into a supernova. Obtaining complete samples of such stars across a large range of metallicities poses observational challenges, but presents us with…

Solar and Stellar Astrophysics · Physics 2019-08-20 Kathryn F. Neugent , Philip Massey

This is a summary of the discussions that took place in the working group dedicated to studies of the Local Universe. The authors are listed in alphabetical order, after the working group organiser, and are those who gave a presentation…

Astrophysics of Galaxies · Physics 2019-08-19 E. Tolstoy , G. Battaglia , R. Beck , A. Brunthaler , A. Calamida , G. Fiorentino , J. M. van der Hulst

Dwarf galaxy satellite systems are essential probes to test models of structure formation, making it necessary to establish a census of dwarf galaxies outside of our own Local Group. We present deep FORS2 VI band images from the ESO Very…

Spatially resolving the immediate surroundings of young stars is a key challenge for the planet formation community. SPHERE on the VLT represents an important step forward by increasing the opportunities offered by optical or near-infrared…

We report on the discovery of three new dwarf galaxies in the Local Group. These galaxies are found in new CFHT/MegaPrime g,i imaging of the south-western quadrant of M31, extending our extant survey area to include the majority of the…

The most recent observational results on the search for high redshift field ellipticals are reviewed in the context of galaxy formation scenarios. The perspectives for Large Binocular Telescope (LBT) observations are also discussed.

Astrophysics · Physics 2007-05-23 A. Cimatti

Simulations of the chemical enrichment histories of ten Local Group (LG) dwarf galaxies are presented, employing empirically-derived star formation histories (SFHs), a rich network of isotopic and elemental nucleosynthetic yields, and a…

Astrophysics · Physics 2009-11-13 Brad K. Gibson

We briefly describe our on-going investigation of the near-IR luminosity-metallicity relationship for dwarf irregular galaxies in nearby groups of galaxies. The motivations of the project and the observational databases are introduced, and…

Astrophysics · Physics 2007-05-23 Ivo Saviane , R. Riegerbauer , E. V. Held , V. Ivanov , D. Alloin , F. Bresolin , Y. Momany , R. M. Rich , L. Rizzi

The present generation of large telescopes facilitates spectroscopy of blue supergiants in galaxies out to distances beyond the Local Group. Recent developments in NLTE spectrum synthesis techniques allow for an accurate determination of…

Astrophysics · Physics 2007-05-23 N. Przybilla , F. Bresolin , K. Butler , R. P. Kudritzki , M. A. Urbaneja , K. A. Venn

I analyze the properties of the first galaxies in cosmological simulations with radiative feedback. Preliminary results indicate similarities with the observed properties of the bulk of dwarf spheroidal galaxies (dSphs) in the Local Group…

Astrophysics · Physics 2016-01-27 Massimo Ricotti

The galaxy evolution is believed to be conditioned by the environment. Isolated galaxies or galaxies in poor groups are an excellent laboratory to study evolutionary mechanisms where effects of the environment are minimal. We present new…

Astrophysics of Galaxies · Physics 2022-03-14 Paola Mazzei , Roberto Rampazzo , Antonietta Marino , Ginevra Trinchieri , Michela Uslenghi , Anna Wolter

The modern generation of wide-field galaxy surveys, such as LSST, Euclid and Roman, will enable studies of dwarf galaxies $(10^6 \leq M_\ast / M_\odot \leq 10^9)$ beyond the Local Group (LG) in unprecedented detail. Improved theoretical…

We review recent progress by the RSAA team in elucidating the dynamical evolution of the various classes of Narrow Line Regions (NLR) in active galaxies.

Astrophysics · Physics 2007-05-23 M. A. Dopita , G. V. Bicknell , R. S. Sutherland , C. J. Saxton

We describe a method to efficiently obtain two-dimensional velocity fields of distant, faint and small, emission-line galaxies with FORS2 at the VLT. They are examined for kinematic substructure to identify possible interaction processes.…

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