Results 71 to 80 of about 210,241 (186)

The Full-fledged Dwarf Irregular Galaxy Leo A

, 2004
International audienceWe have studied Leo A, an isolated and extremely gas-rich dwarf irregular galaxy of very low stellar mass and metallicity. Ages of the stellar populations in Leo A range from ~10 Myr to ~10 Gyr.
Vladas Vansevičius, Donatas Narbutis, Nobuo Arimoto, Naoyuki Tamura, Ohta, Kouji, Tamura, Naoyuki, Jablonka, Pascale, Narbutis, Donatas, Chisato Ikuta, Vansevicius, Vladas, Pascale Jablonka, Yoshihiko Yamada, Stonkute, Rima, Valdas Vansevičius, Kouji Ohta, Takashi Hasegawa, Rima Stonkutė, Yamada, Yoshihiko, Hasegawa, Takashi, Arimoto, Nobuo, Ikuta, Chisato   +20 more
core   +1 more source

Simulations of Dwarf Galaxy Formation [PDF]

, 2011
Dwarf galaxies are related to important cosmological questions, and central to our understanding of the physics of galaxy formation. In this thesis, I present the results of cosmological, hydrodynamical simulations of the formation and evolution of dwarf
Sawala, T., Sawala, Till
core  

Asymptotic giant branch stars in the Phoenix dwarf galaxy

, 2015
JHKs near-infrared photometry of stars in the Phoenix dwarf galaxy is presented and discussed. Combining these data with the optical photometry of Massey et al. allows a rather clean separation of field stars from Phoenix members.
Menzies, J. W, Matsunaga, G, Da Costa, Gary, Olivier, E. A., Feast, M.W., Whitelock, Patricia A   +5 more
core   +1 more source

Star clusters as age tracers of the age-metallicity relation of the small magellanic cloud [PDF]

, 2009
In my Thesis, I determined ages of Small Magellanic Cloud (SMC) star clusters that have formed during the galaxys entire lifetime.
Glatt, Katharina
core   +1 more source

It’s a Breeze: The Circumgalactic Medium of a Dwarf Galaxy Is Easy to Strip

The Astrophysical Journal
The circumgalactic medium (CGM) of star-forming dwarf galaxies plays a key role in regulating the galactic baryonic cycle. We investigate how susceptible the CGM of dwarf satellite galaxies is to ram pressure stripping in Milky Way–like environments.
Jingyao Zhu, Stephanie Tonnesen, Greg L. Bryan, Mary E. Putman   +3 more
doaj   +1 more source

Models of Dwarf Galaxy Destruction

, 2007
. Dwarf galaxies might be destroyed either by internal processes, such as gas loss induced by star formation, or external processes, such as tidal disruption.
C. Pryor, Pryor Dept
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Barley yellow dwarf epidemiology [PDF]

, 2006
Barley yellow dwarf (BYD) disease is induced by viruses that are vectored by aphids. The viruses infect grasses and cause severe damage on oats, barley and wheat worldwide.
Bisnieks, Maris
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The Formation of Dwarf Galaxy Disks

The Astrophysical Journal
Dwarf galaxies are dark matter-dominated systems that are sensitive to feedback and display a diversity of baryonic morphologies. This makes them excellent probes for understanding dark matter and galaxy evolution.
Robel Geda, Akaxia Cruz, Anna C. Wright, Jenny E. Greene, Alyson Brooks, Thomas Quinn, James Wadsley, Ben Keller   +7 more
doaj   +1 more source

Non-equilibrium Bayesian modelling of the Sagittarius dwarf galaxy and its tidal stream [PDF]

, 2015
Recent studies have shown that the distribution of Dark Matter within dwarf spheroidal galaxies can be constrained by measuring simultaneously dynamical properties of the remnant progenitor and its stellar tidal stream.
Errani, Raphael
core  

Dwarf spheroidals in the M81 galaxy group

, 2010
The M81 group consists of a few large galaxies and about 40 dwarf galaxies. It is a highly interacting group which makes it an important nearby laboratory to study the role of the environment and interactions in the dwarf galaxy formation and evolution ...
Lianou, S., Koch, Andreas, Grebel, E. K.
core