Results 21 to 30 of about 394,077 (286)
The dwarf galaxy satellite system of Centaurus A [PDF]
Astronomy & Astrophysics, 2019 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 Large Telescope (
O. Müller +6 more
semanticscholar +1 more source
Associations of Dwarf Galaxies [PDF]
The Astronomical Journal, 2006 50 pages, 2 tables, 15 encapsulated figures, 1 (3 part) jpg figure.
Luca Rizzi +10 more
openaire +3 more sources
Bibechana, 2021 We present a spectroscopic study of an interacting emission-line dwarf galaxy SDSS J134326.99+431118.7. We analyzed eight-strong emission lines of wavelength in a range of 3902.1Å to 6619.1Å.
Daya Nidhi Chhatkuli +2 more
doaj +3 more sources
Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies
The Astrophysical Journal Letters, 2023 Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu +8 more
doaj +1 more source
An Overview of the Dwarf Galaxy Survey [PDF]
Publications of the Astronomical Society of the Pacific, 2013 The Dwarf Galaxy Survey (DGS) program is studying low-metallicity galaxies using 230h of far-infrared (FIR) and submillimetre (submm) photometric and spectroscopic observations of the Herschel Space Observatory and draws to this a rich database of a wide range of wavelengths tracing the dust, gas and stars.
Madden, S. C. +40 more
openaire +10 more sources
Baryonic clues to the puzzling diversity of dwarf galaxy rotation curves [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We use a compilation of disc galaxy rotation curves to assess the role of the luminous component (‘baryons’) in the rotation curve diversity problem. As in earlier work, we find that rotation curve shape correlates with baryonic surface density: high ...
I. Santos-Santos +9 more
semanticscholar +1 more source
The formation of ultra-compact dwarf galaxies and nucleated dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 Ultra compact dwarf galaxies (UCDs) have similar properties as massive globular clusters or the nuclei of nucleated galaxies. Recent observations suggesting a high dark matter content and a steep spatial distribution within groups and clusters provide new clues as to their origins.
Stelios Kazantzidis +6 more
openaire +6 more sources
The Pristine dwarf galaxy survey–V. The edges of the dwarf galaxy Hercules
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present a new spectroscopic study of 175 stars in the vicinity of the dwarf galaxy Hercules (d ∼ 132 kpc) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system to solve the conundrum that whether Hercules is tidally disrupting.
Nicolas Longeard +8 more
openaire +3 more sources
Snake in the Clouds: a new nearby dwarf galaxy in the Magellanic bridge* [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We report the discovery of a nearby dwarf galaxy in the constellation of Hydrus, between the Large and the Small Magellanic Clouds. Hydrus 1 is a mildy elliptical ultra-faint system with luminosity MV ∼ −4.7 and size 53 ± 3 pc, located 28 kpc from the
Sergey E. Koposov +11 more
semanticscholar +1 more source
DWARF GALAXIES AND THE COSMIC WEB [PDF]
The Astrophysical Journal, 2013 We use a cosmological simulation of the formation of the Local Group of Galaxies to identify a mechanism that enables the removal of baryons from low-mass halos without appealing to feedback or reionization. As the Local Group forms, matter bound to it develops a network of filaments and pancakes.
Benítez-Llambay, Alejandro +6 more
openaire +6 more sources