Results 101 to 110 of about 10,200 (231)

Satellite Dwarf Galaxies in a Hierarchical Universe: The Prevalence of Dwarf-Dwarf Major Mergers [PDF]

, 2014
Mergers are a common phenomenon in hierarchical structure formation, especially for massive galaxies and clusters, but their importance for dwarf galaxies in the Local Group remains poorly understood. We investigate the frequency of major mergers between
Garrison-Kimmel, Shea, Wetzel, Andrew, Deason, Alis, Garrison-Kimmel, S., Wetzel, A., Deason, A.   +5 more
core   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

The influence of the cosmic web on the properties of dwarf galaxies in the Fornax-Eridanus supercluster

Astronomy & Astrophysics
Context. In this paper, we analyse a sample of low surface brightness dwarf galaxies with a mean effective surface brightness of μ̅e,g > 24.2 μ ¯ e , g > 24.2 $ \bar{\mu}_{e,g} > 24.2 $ mag arcsec−2, detected using interpretable ...
Xu X., Ravichandran P., Peletier R. F., Junais, Raj M. A., Awad P., Smith R.   +6 more
doaj   +1 more source

Towards AMR Simulations of Galaxy Formation [PDF]

, 2010
Numerical simulations present a fundamental building block of our modern theoretical understanding of the Universe. As such the work in this thesis is primarily concerned with understanding fundamental differences that lie between the different ...
MITCHELL, NIGEL,LEWIS, Mitchell, Nigel Lewis   +1 more
core  

Discovering Dwarf Galaxies Around Low Mass Galaxies

, 2023
The goal of this project is to discover satellite dwarf galaxies around low mass galaxies. These dwarf galaxies are important to study because a large portion of the galaxies\u27 mass is made up of dark matter.
Farnell, Bo, Saraisky, Madeleine
core  

Dwarf Galaxies with Radio-excess Active Galactic Nuclei in the Very Large Array Sky Survey

The Astrophysical Journal
We present a systematic search for radio active galactic nuclei (AGNs) in dwarf galaxies using recent observations taken by the Very Large Array Sky Survey (VLASS).
John-Michael Eberhard, Amy E. Reines, Hansung B. Gim, Jeremy Darling, Jenny E. Greene   +4 more
doaj   +1 more source

Searching for nearby diffuse dwarf galaxies in the COSMOS field

Frontiers in Astronomy and Space Sciences
It remains challenging to systematically survey nearby diffuse dwarf galaxies and address the formation mechanism of this population distinguishing from regular ones.
Dong Dong Shi, Xian Zhong Zheng, Zhizheng Pan, Yu Luo, Hongxia Deng, Qunzhi Hua, Xinyu Luo, Qiming Wu   +7 more
doaj   +1 more source

Simulations of the formation and evolution of dwarf galaxies

, 2009
We present models of the formation and evolution of isolated dwarf galaxies. The models follow the evolution of an initially homogeneous gas cloud collapsing in a pre-existing dark-matter halo.
Dejonghe, Herwig, Valcke, SanderWE05802000082888002002333917057545888075F88D0422-F0ED-11E1-A9DE-61C894A0A6B4, Valcke, Sander, De Rijcke, SvenWE050019921810478010010986820000-0001-7680-2059F511F19A-F0ED-11E1-A9DE-61C894A0A6B4, Dejonghe, HerwigWE058010004374660000-0001-7302-2778F943A290-F0ED-11E1-A9DE-61C894A0A6B4, De Rijcke, Sven   +5 more
core   +1 more source

Dwarf Galaxy Number Counts within 25 Mpc: Predictions from Local Group Analogs in TNG50

The Astrophysical Journal
The modern generation of wide-field galaxy surveys, such as LSST, Euclid, and Roman, will enable studies of dwarf galaxies (10 ^6 ≤ M _* / M _⊙ ≤ 10 ^9 ) beyond the Local Group (LG) in unprecedented detail.
Evangela E. Shread, Joanna M. Piotrowska, Daniel R. Weisz, Michael Boylan-Kolchin, Fiona A. Harrison   +4 more
doaj   +1 more source

Angular Momentum in Dwarf Galaxies

Open Astronomy, 2014
AbstractWe study the “angular momentum catastrophe” in the framework of interaction among baryons and dark matter through dynamical friction. By means of Del Popolo (2009) model we simulate 14 galaxies similar to those investigated by van den Bosch, Burkert and Swaters (2001), and calculate the distribution of their spin parameters and the angular ...
openaire   +4 more sources