Results 81 to 90 of about 210,241 (186)

Search for cold and hot gas in the ram pressure stripped Virgo dwarf galaxy IC 3418

, 2013
We present IRAM 30 m sensitive upper limits on CO emission in the ram pressure stripped dwarf Virgo galaxy IC 3418 and in a few positions covering H ...
M. Sun, F. Combes, Combes, F., A. Ržuička, Palouš, J., Jáchym, P., P. Jáchym, J. D. P. Kenney, Ržuička, A., J. Palouš, Kenney, J., Sun, M.   +11 more
core   +1 more source

Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling

Advances in Astronomy, 2010
Galaxy surveys have shown that luminous galaxies are mainly distributed in large filaments and galaxy clusters. The remaining large volumes are virtually devoid of luminous galaxies.
Matthias Hoeft, Stefan Gottlöber
doaj   +1 more source

A recent merger in the Fornax dwarf spheroidal galaxy

, 2016
This contribution describes a recent photometric survey of the Fornax dwarf spheroidal galaxy. CCD photometry in two colours (V and I) was obtained for a 10 degree2 region centred on Fornax.
Coleman, Matthew
core   +1 more source

Secondary evolution of galaxies investigated by N-body simulations [PDF]

, 2008
In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core  

Optical BVI imaging and HI synthesis observations of the dwarf irregular galaxy ESO364-G029

, 2007
As part of an effort to enlarge the number of well-studied Magellanic-type galaxies, we obtained broadband optical imaging and neutral hydrogen radio synthesis observations of the dwarf irregular galaxy ESO 364 ...
S. Kim, M. Bureau, M. B. N. Kouwenhoven, P. T. de Zeeuw   +3 more
core   +1 more source

A Search for Faint Resolved Galaxies Beyond the Milky Way in DES Year 6: A New Faint, Diffuse Dwarf Satellite of NGC 55

The Astrophysical Journal
We report results from a systematic wide-area search for faint dwarf galaxies at heliocentric distances from 0.3 to 2 Mpc using the full 6 yr of data from the Dark Energy Survey (DES).
M. McNanna, K. Bechtol, S. Mau, E. O. Nadler, J. Medoff, A. Drlica-Wagner, W. Cerny, D. Crnojević, B. Mutlu-Pakdıl, A. K. Vivas, A. B. Pace, J. L. Carlin, M. L. M. Collins, P. S. Ferguson, D. Martínez-Delgado, C. E. Martínez-Vázquez, N. E. D. Noel, A. H. Riley, D. J. Sand, A. Smercina, E. Tollerud, R. H. Wechsler, T. M. C. Abbott, M. Aguena, O. Alves, D. Bacon, C. R. Bom, D. Brooks, D. L. Burke, J. A. Carballo-Bello, A. Carnero Rosell, J. Carretero, L. N. da Costa, T. M. Davis, J. De Vicente, H. T. Diehl, P. Doel, I. Ferrero, J. Frieman, G. Giannini, D. Gruen, G. Gutierrez, R. A. Gruendl, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, R. Miquel, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, J. D. Sakowska, E. Sanchez, D. Sanchez Cid, B. Santiago, I. Sevilla-Noarbe, M. Smith, G. S. Stringfellow, E. Suchyta, M. E. C. Swanson, G. Tarle, N. Weaverdyck, P. Wiseman, DES & DELVE Collaboration   +66 more
doaj   +1 more source

Dwarf galaxies within the Kilo Degree Survey

Astronomy & Astrophysics
Context. Constraining the properties, spatial distribution, and luminosity function of dwarf galaxies in different galactic environments is crucial for understanding the dwarf galaxy formation and evolution.
Venhola Aku, Müller Oliver
doaj   +1 more source

Spatially resolved kinematics of an ultracompact dwarf galaxy

, 2011
We present the internal kinematics of UCD3, the brightest known ultracompact dwarf galaxy (UCD) in the Fornax cluster, making this the first UCD with spatially resolved spectroscopy.
S. Mieske, H. Baumgardt, Baumgardt, H., Grebel E. K., Hilker, M., Mieske, S., M. Hilker, L. Infante, Infante, L., E. K. Grebel, Frank, M. J., M. J. Frank, Frank, M., Infante Lira, Leopoldo, Frank, M.J.   +14 more
core   +1 more source

Forecasts for Galaxy Formation and Dark Matter Constraints from Dwarf Galaxy Surveys

The Astrophysical Journal
The abundance of faint dwarf galaxies is determined by the underlying population of low-mass dark matter (DM) halos and the efficiency of galaxy formation in these systems. Here, we quantify potential galaxy formation and DM constraints from future dwarf
Ethan O. Nadler, Vera Gluscevic, Trey Driskell, Risa H. Wechsler, Leonidas A. Moustakas, Andrew Benson, Yao-Yuan Mao   +6 more
doaj   +1 more source

A Possible “Too-many-satellites” Problem in the Isolated Dwarf Galaxy DDO 161

The Astrophysical Journal Letters
The abundance of satellite galaxies provides a direct test of ΛCDM and galaxy formation physics on small scales. While satellites of Milky Way-mass galaxies are well studied, those of dwarf galaxies remain largely unexplored.
Jiaxuan Li, Jenny E. Greene, Shany Danieli, Scott G. Carlsten, Marla Geha   +4 more
doaj   +1 more source