Results 141 to 150 of about 10,200 (231)

Chemical Abundances of Dwarf Galaxies [PDF]

open access: yes
Dwarf galaxies, though small in size, play a crucial role in understanding the chemical evolu- tion of galaxies. Dwarf galaxies make up the overwhelming majority of galaxies in our local group and have very low metallicities.
Sanborn, Natalie
core  

Discrete effects in stellar feedback: Individual Supernovae, Hypernovae, and IMF Sampling in Dwarf Galaxies. [PDF]

open access: yesMon Not R Astron Soc, 2018
Su KY   +9 more
europepmc   +1 more source

Dwarf Galaxy Integral-field Survey (DGIS): Survey Overview and the Results of a Global Mass–Metallicity Relation

open access: yesThe Astrophysical Journal Supplement Series
Low-mass galaxies are the building blocks of massive galaxies in the framework of hierarchical structure formation. To enable detailed studies of galactic ecosystems in dwarf galaxies by spatially resolving different galactic components, we have carried ...
Xin Li   +13 more
doaj   +1 more source

Detached Tidal Dwarf Galaxies

open access: yes, 2019
Dwarf galaxies may form in the tidal tails of galaxy interactions. If these tidal dwarf galaxies (TDGs) detach from their parent galaxies, then an independent dwarf galaxy emerges. However, the lifespan of such objects is uncertain.
Jones, Mark   +2 more
core  

A Luminous X-Ray Active Galactic Nucleus in the Dwarf–Dwarf Galaxy Merger RGG 66

open access: yesThe Astrophysical Journal
We present the discovery of a luminous X-ray active galactic nucleus (AGN) in the dwarf galaxy merger RGG 66. The black hole is predicted to have a mass of M _BH ∼ 10 ^5.4 M _⊙ and to be radiating close to its Eddington limit ( L _bol / L _Edd ∼ 0.75 ...
Seth J. Kimbrell, Amy E. Reines
doaj   +1 more source

An Accreting Supermassive Black Hole Buried in a Faint Dwarf Galaxy

open access: yesThe Astrophysical Journal Letters
In the last decade, there have been several discoveries of active galactic nuclei (AGN) in dwarf galaxies including an AGN in an ultracompact dwarf galaxy with a black hole mass >10 ^6 M _⊙ .
Abhishek Paswan, Mousumi Das, K Rubinur
doaj   +1 more source

A Morphological Study of AGN-host Dwarf Galaxies

open access: yesThe Astrophysical Journal
The study of morphology in galaxies offers a convenient and quantitative method to measure the shapes and characteristics of galaxy light distribution that reflect the evolutionary history.
Jie Tian   +3 more
doaj   +1 more source

Star Formation Histories of Dwarf Galaxies in the Local Group

open access: yes, 2001
International audienceA considerable fraction of dwarf galaxies may represent fossils of the very first star formation in the universe. If true, in much the same way as paleontologists reconstruct the prehistoric life from the fossils, it is possible to ...
Ikuta, C.   +2 more
core  

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