Results 21 to 30 of about 334,147 (281)

Associations of Dwarf Galaxies [PDF]

The Astronomical Journal, 2006
50 pages, 2 tables, 15 encapsulated figures, 1 (3 part) jpg figure.
Luca Rizzi, Shoko Sakai, Valentina E. Karachentseva, Edward J. Shaya, Dmitry Makarov, Andrew E. Dolphin, R. Brent Tully, Igor D. Karachentsev, Lidia Makarova, Lidia Makarova, Lidia Makarova   +10 more
openaire   +3 more sources

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, M. Rejkuba, M. Pawlowski, R. Ibata, F. Lelli, M. Hilker, H. Jerjen   +6 more
semanticscholar   +1 more source

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, J. Navarro, A. Robertson, Alejandro Ben'itez-Llambay, K. Oman, M. Lovell, C. Frenk, A. Ludlow, Azadeh Fattahi, A. Ritz   +9 more
semanticscholar   +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., Remy-Ruyer, A., Galametz, M., Cormier, D., Lebouteiller, V., Galliano, F., Hony, S., Bendo, G. J., Smith, M. W. L., Pohlen, M., Roussel, H., Sauvage, M., Wu, R., Sturm, E., Poglitsch, A., Contursi, A., Doublier, V., Baes, M., Barlow, M. J., Boselli, A., Boquien, M., Carlson, L. R., Ciesla, L., Cooray, A., Cortese, L., Looze, I., Irwin, J. A., Isaak, K., Kamenetzky, J., Karczewski, O. L., Lu, N., Machattie, J. A., O'Halloran, B., Parkin, T. J., Rangwala, N., Schirm, M. R. P., Schulz, B., Spinoglio, L., Vaccari, M., Wilson, C. D., Wozniak, H.   +40 more
openaire   +10 more sources

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, Joachim Stadel, Tobias Kaufmann, Tobias Goerdt, Tobias Goerdt, Ben Moore, Andrea V. Macciò   +6 more
openaire   +6 more sources

DWARF GALAXIES OF THE LOCAL GROUP [PDF]

Annual Review of Astronomy and Astrophysics, 1998
▪ Abstract  The Local Group dwarf galaxies offer a unique window to the detailed properties of the most common type of galaxy in the Universe. In this review, I update the census of Local Group dwarfs based on the most recent distance and radial velocity determinations.
Mario Mateo
openalex   +4 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, Pascale Jablonka, Giuseppina Battaglia, Khyati Malhan, Nicolas Martin, Rubén Sánchez-Janssen, Federico Sestito, Else Starkenburg, Kim A Venn   +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, M. Walker, V. Belokurov, A. Casey, A. Geringer-Sameth, D. Mackey, G. Costa, D. Erkal, P. Jethwa, M. Mateo, E. Olszewski, J. Bailey   +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, Navarro, Julio F., Abadi, Mario G., Gottlöber, Stefan, Yepes Alonso, Gustavo, Hoffman, Yehuda, Steinmetz, Matthias   +6 more
openaire   +6 more sources

Simulating an isolated dwarf galaxy with multichannel feedback and chemical yields from individual stars [PDF]

Monthly notices of the Royal Astronomical Society, 2018
In order to better understand the relationship between feedback and galactic chemical evolution, we have developed a new model for stellar feedback at grid resolutions of only a few parsecs in global disk simulations, using the adaptive mesh refinement ...
A. Emerick, G. Bryan, Mordecai-Mark Mac Low   +2 more
semanticscholar   +1 more source