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Related papers: New dwarf galaxy candidates in the Centaurus group

200 papers

We report new nearby L and late-M dwarfs (d_phot <= 30 pc) discovered in our search for nearby ultracool dwarfs (I-J >= 3.0, later than M8.0) at low Galactic latitude (|b| < 15 degr) over 4,800 square degrees in the DENIS database. We used…

We use recently compiled position and velocity data for the globular cluster and planetary nebula subsystems in NGC 5128, the nearby giant elliptical, to search for evidence of past dwarf-satellite accretion events. Beyond a 10 arcmin (~11…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Kristin A. Woodley , William E. Harris

We report optical spectroscopic observations of a sample of 6 low-galactic latitude microquasar candidates selected by cross-identification of X-ray and radio point source catalogs for |b|<5 degrees. Two objects resulted to be of clear…

Astrophysics · Physics 2007-05-23 J. Marti , J. M. Paredes , J. S. Bloom , J. Casares , M. Ribo , E. E. Falco

We present CCD surface photometry of 16 nearby dwarf galaxies, many of which were only recently discovered. Our sample comprises both isolated galaxies and galaxies that are members of nearby galaxy groups. The observations were obtained in…

Astrophysics · Physics 2009-11-07 L. N. Makarova , I. D. Karachentsev , E. K. Grebel , O. Yu. Barsunova

We report the discovery of the faintest known dwarf galaxy satellite of an LMC stellar-mass host beyond the Local Group, based on deep imaging with Subaru/Hyper Suprime-Cam. MADCASH J074238+652501-dw lies $\sim$35 kpc in projection from NGC…

The aim of the project is to find the stars nearest to the Sun and to contribute to the completion of the stellar and substellar census of the solar neighbourhood. We identified a new late-M dwarf within 5 pc, looking for high proper motion…

Solar and Stellar Astrophysics · Physics 2017-01-13 A. Perez-Garrido , N. Lodieu , V. J. S. Bejar , M. T. Ruiz , B. Gauza , R. Rebolo , M. R. Zapatero Osorio

Dwarf spheroidal galaxies (dSphs) have been extensively investigated in the Local Group, but their low luminosity and surface brightness make similar work in more distant galaxy groups challenging. Modern instrumentation unlocks the…

We present the results of a search for globular clusters in the surroundings of 15 low surface brightness dwarf galaxies belonging to the Fornax Cluster, which was carried out on CCD images obtained with the C and T1 filters of the…

Astrophysics · Physics 2009-11-07 L. P. Bassino , S. A. Cellone , J. C. Forte , B. Dirsch

A recent surge in the discovery of new ultrafaint dwarf satellites of the Milky Way has inspired the idea of searching for faint satellites, $10^3\, \mathrm{M_{\odot}} < M_* < 10^6\, \mathrm{M_{\odot}}$, around less massive field galaxies…

Astrophysics of Galaxies · Physics 2017-09-06 Gregory A. Dooley , Annika H. G. Peter , Tianyi Yang , Beth Willman , Brendan F. Griffen , Anna Frebel

Astrometric measurements are presented for seven nearby stars with previously detected planets: six M dwarfs (GJ 317, GJ 667C, GJ 581, GJ 849, GJ 876, and GJ 1214) and one K dwarf (BD $-$10 3166). Measurements are also presented for six…

We present the results from a search for new Milky Way (MW) satellites from the first two years of data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) $\sim 300$~deg$^2$ and report the discovery of a highly compelling…

We report the discovery of a very diverse set of five low-surface brightness (LSB) dwarf galaxy candidates in Hickson Compact Group 90 (HCG 90) detected in deep U- and I-band images obtained with VLT/VIMOS. These are the first LSB dwarf…

We describe a search for compact dwarf galaxies in the Fornax cluster using the FLAIR spectrograph on the UK Schmidt Telescope. We measured radial velocities of 453 compact galaxies brighter than Bt=17.3 and found seven new compact dwarf…

Astrophysics · Physics 2009-10-30 M. J. Drinkwater , M. D. Gregg

We present a catalog of 4780 extended sources from the outer field of M33. The catalog includes 73 previously identified clusters or planetary nebulae, 1153 likely background galaxies, and 3554 new candidate stellar clusters. The survey is…

Astrophysics · Physics 2008-05-29 K. Zloczewski , J. Kaluzny , J. Hartman

Dwarf galaxies in groups of galaxies provide excellent test cases for models of structure formation. This led to a so-called small-scale crisis, including the famous missing satellite and too-big-to-fail problems. It was suggested that…

Astrophysics of Galaxies · Physics 2024-04-10 Oliver Müller , Marcel S. Pawlowski , Yves Revaz , Aku Venhola , Marina Rejkuba , Michael Hilker , Katharina Lutz

Using Virtual Observatory tools, we cross-matched the Carlsberg Meridian 14 and the 2MASS Point Source catalogs to select candidate nearby bright M dwarfs distributed over ~ 25,000 deg^2. Here, we present reconnaissance low-resolution…

Solar and Stellar Astrophysics · Physics 2014-09-17 M. Aberasturi , J. A. Caballero , B. Montesinos , M. C. Gálvez-Ortiz , E. Solano , E. L. Martín

The spatial distributions of the most recently discovered ultra faint dwarf satellites around the Milky Way and the Andromeda galaxy are compared to the previously reported discs-of-satellites (DoS) of their host galaxies. In our…

Astrophysics of Galaxies · Physics 2009-11-13 Manuel Metz , Pavel Kroupa , Helmut Jerjen

Several M dwarfs are targets of systematical monitoring in searches for Doppler signals caused by low-mass exoplanet companions. As a result, an emerging population of high-multiplicity planetary systems around low-mass stars are being…

Earth and Planetary Astrophysics · Physics 2015-06-05 Guillem Anglada-Escudé , Mikko Tuomi

Dwarf galaxies are valuable laboratories for dynamical studies related to dark matter and galaxy evolution, yet it is currently unknown just how physically extended their stellar components are. Satellites orbiting the Galaxy's potential…

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