Results 191 to 200 of about 399,477 (315)

A Preliminary Color-Magnitude Diagram for the Ursa Minor Dwarf Galaxy [PDF]

, 1978
R. A. Schommer, Edward W. Olszewski, W. E. Kunkel   +2 more
openalex   +1 more source

Hedgehog: An Isolated Quiescent Dwarf Galaxy at 2.4 Mpc

The Astrophysical Journal Letters
It is well known that almost all isolated dwarf galaxies are actively forming stars. We report the discovery of dw1322m2053 (nicknamed Hedgehog), an isolated quiescent dwarf galaxy at a distance of 2.40 ± 0.15 Mpc with a stellar mass of M _⋆ ≈ 10 ^5.8 M ...
Jiaxuan Li, Jenny E. Greene, Scott G. Carlsten, Shany Danieli   +3 more
doaj   +1 more source

The Planetary Nebula in the Fornax Dwarf Galaxy [PDF]

, 1978
I.J. Danziger, M. Dopita, T.G. Hawarden, B.L. Webster   +3 more
openalex   +1 more source

Deep CCD observations of nearby dwarf galaxy candidates [PDF]

, 1988
J. G. Hoessel, A. Saha, G. E. Danielson
openalex   +1 more source

Nitrogen and oxygen evolution in dwarf irregular galaxies [PDF]

, 1985
F. Matteuccí, M. Tosi
openalex   +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

Chemical Abundances in the Leiptr Stellar Stream: A Disrupted Ultra-faint Dwarf Galaxy?

The Open Journal of Astrophysics
Chemical abundances of stellar streams can be used to determine the nature of a stream's progenitor. Here we study the progenitor of the recently discovered Leiptr stellar stream, which was previously suggested to be a tidally disrupted halo globular ...
Kaia R. Atzberger, Sam A. Usman, Alexander P. Ji, Lara R. Cullinane, Denis Erkal, Terese T. Hansen, Geraint F. Lewis, Ting S. Li, Guilherme Limberg, Alice Luna, Sarah L. Martell, Madeleine McKenzie, Andrew B. Pace, Daniel B. Zucker   +13 more
doaj   +1 more source

Optical Observations of M81 Galaxy Group in Narrow Band [SII] and H_alpha Filters: Holmberg IX [PDF]

Serbian Astronomical Journal, 2009
We present observations of the nearby tidal dwarf galaxy Holmberg IX in M81 galaxy group in narrow band [SII] and H$alpha$ filters, carried out in March and November 2008 with the 2m RCC telescope at NAO Rozhen, Bulgaria.
Arbutina, B., Ilić, D., Stavrev, K., Urošević, D., Vukotić, B., Onić, D.   +5 more
doaj  

The chemical composition and age of the blue compact dwarf galaxy Haro 2 [PDF]

, 1989
T. J. Davidge
openalex   +1 more source

The Host Galaxy of the Hyperactive Repeating FRB 20240114A: Behind a Galaxy Cluster

The Astrophysical Journal Letters
We report on the optical spectroscopic observations of the host galaxy of the hyperactive repeating fast radio burst (FRB) FRB 20240114A. The host galaxy is a dwarf galaxy at a redshift of z  = 0.1306 ± 0.0002.
Xiang-Lei Chen, Chao-Wei Tsai, Di Li, Pei Wang, Yi Feng, Jun-Shuo Zhang, Guo-Dong Li, Yong-Kun Zhang, Lu-Lu Bao, Mai Liao, Lu-Dan Zhang, Pei Zuo, Dong-Wei Bao, Chen-Hui Niu, Rui Luo, Wei-Wei Zhu, Hu Zou, Sui-Jian Xue, Bing Zhang   +18 more
doaj   +1 more source