Results 131 to 140 of about 3,892 (249)

First Results from the Dragonfly Ultrawide Survey: The Largest 11 Quenched Diffuse Dwarf Galaxies in 3100 deg2 with Spectroscopic Confirmation

The Astrophysical Journal
The Dragonfly Telephoto Array employs a unique design to detect very large and diffuse galaxies that might be missed with conventional telescopes. The Dragonfly Ultrawide Survey (DFUWS) is a new wide-field survey that will cover 10,000 deg ^2 of the ...
Zili Shen, William P. Bowman, Pieter van Dokkum, Roberto G. Abraham, Imad Pasha, Michael A. Keim, Qing Liu, Deborah M. Lokhorst, Steven R. Janssens, Seery Chen   +9 more
doaj   +1 more source

On the Origin of Damped L[CLC]y[/CLC]α Systems: A Case for Low Surface Brightness Galaxies? [PDF]

, 1999
Raúl Jiménez, David V. Bowen, F. Matteuccí   +2 more
openalex   +1 more source

Searching for ultra-diffuse galaxies in the Dark Energy Survey using an object-detection algorithm

Astronomy & Astrophysics
Ultra-diffuse galaxies (UDGs) are a class of galaxies characterized by an extremely low surface brightness and large effective radius. The significance of UDGs lies in their unique properties, such as their diverse dark-matter content, which collectively
Su Yiping, Yi Zhenping, Li Sihan, Liu Meng, Kong Xiaoming, Bu Yude, Li Dong   +6 more
doaj   +1 more source

A Closer Look at the Extended Edge-on Low-surface Brightness Galaxies

The Astrophysical Journal
To understand the origin of extended disks of low-surface brightness (LSB) galaxies, we studied in detail four such systems with large disks seen edge on. Two of them are edge-on giant LSB galaxies (gLSBGs) recently identified by our team.
Anna S. Saburova, Damir Gasymov, Evgenii V. Rubtsov, Igor V. Chilingarian, Sviatoslav Borisov, Ivan Gerasimov, Fedor Kolganov, Anastasia V. Kasparova, Roman I. Uklein, Michal Bílek, Kirill A. Grishin, Anatoly Zasov, Mariia Demianenko, Ivan Yu. Katkov, Ana Lalović, Srdjan Samurović   +15 more
doaj   +1 more source

Rotating Halos and Spirals in Low Surface Brightness Galaxies [PDF]

, 2000
Tzihong Chiueh, Yao‐Huan Tseng
openalex   +1 more source

On the Origin of Low-Surface-Brightness Galaxies

, 1994
We reconsider the problem of the origin of Low-Surface-Brightness (LSB) galaxies within the standard Cold Dark Matter (CDM) cosmological model ($Ω=1, h=0.5$). Taking into account the effect of substructure on the collapse times of low overdensity peaks, we show that the abundance of these peaks is larger than previously expected because of the dragging
openaire   +2 more sources

Star Formation Rates in Low Surface Brightness Galaxies [PDF]

, 1994
The low surface brightness (LSB) disk galaxies found in recent surveys (e.g.,\ Schombert et al. 1992, AJ, 103, 1107) tend to be blue and gas rich. These properties along with their low mean surface luminosity and H i densities imply an inefficient mode ...
Impey, C. D., van Gorkom, J., Pickering, T. E., Bothun, G. D.   +3 more
core   +2 more sources

Zangetsu: A Candidate Isolated, Quiescent, and Backsplash Ultra-diffuse Galaxy in the COSMOS Field

The Astrophysical Journal
Deep imaging surveys have changed our view of the low surface brightness (LSB) Universe. The “renaissance” of the LSB galaxy population, as a prime example of this recent development, continues to challenge our understanding of galaxy formation. Here, we
Leyao Wei, Song Huang, Jiaxuan Li, Zechang Sun, Mingyu Li, Jiaxin Tang   +5 more
doaj   +1 more source

MUSE Study of Two Giant Low-surface-brightness Galaxies with Compact Satellites

The Astrophysical Journal
Giant low-surface-brightness galaxies (gLSBGs) are rare objects with disk radii up to 160 kpc and dynamical masses of up to the order of 10 ^12 M _⊙ . Their very existence challenges currently accepted theories of galaxy formation and evolution, as it is
Anna S. Saburova, Damir Gasymov, Ivan S. Gerasimov, Oleg V. Egorov, Igor V. Chilingarian, Fedor M. Kolganov, Anatoly V. Zasov, Evgenii V. Rubtsov, Anton V. Afanasiev, Mariia V. Demianenko   +9 more
doaj   +1 more source

Dissecting the Surface Brightness of Galaxies [PDF]

, 2016
Mass and angular momentum are two fundamental quantities governing the evolution of galaxies. Nevertheless, because measuring the angular momentum of galaxies is difficult and requires significant resource, the effect of angular momentum on galaxy ...
Wu, Po Feng
core