Results 111 to 120 of about 52,385 (210)
The Astrophysical JournalThe 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 +9 more
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A Closer Look at the Extended Edge-on Low-surface Brightness Galaxies
The Astrophysical JournalTo 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 +15 more
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Low Surface Brightness Galaxies in Deep Surveys [PDF]
International Astronomical Union Colloquium, 1999 AbstractWe examine the constraints that can be placed on the space density of low-surface-brightness galaxies from deep HST images. Such images, while covering only a small solid angle, provide enough depth and spatial resolution to detect LSB galaxies at moderate redshift and distinguish them from galaxies of higher surface brightness.We consider five
openaire +1 more source
Zangetsu: A Candidate Isolated, Quiescent, and Backsplash Ultra-diffuse Galaxy in the COSMOS Field
The Astrophysical JournalDeep 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 +5 more
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MUSE Study of Two Giant Low-surface-brightness Galaxies with Compact Satellites
The Astrophysical JournalGiant 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 +9 more
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Are Gas-rich Ultra-diffuse Galaxies and Field Dwarfs Distinct?
The Astrophysical JournalWe explore the differences in gas-rich field ultra-diffuse galaxies (UDGs) and diffuse classical dwarf galaxies using an extensive atomic gas (H I ) follow-up survey of optically selected UDG candidates from the Systematically Measuring Ultra-diffuse ...
Khadeejah Motiwala +7 more
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The ISM of Low Surface Brightness Galaxies
, 2000 Using Monte Carlo radiative transfer techniques, we model the dust content of the edge-on low surface brightness (LSB) galaxy UGC 7321 and explore the effects of dust on its disk color gradients. Dust alone cannot explain the large radial disk color gradients observed in this galaxy and we find that a significant fraction (~50%) of the dust in UGC 7321
Matthews, L. D., Wood, Kenneth, Gao, Yu
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Ultradiffuse Galaxies in the EAGLE Simulation
The Astrophysical JournalWe use the highest-resolution EAGLE simulation, Recal-L025N0752, to study the properties and formation of ultradiffuse galaxies (UDGs). We identify 181 UDGs at z = 0 and find their properties are consistent with observations.
Haonan Zheng +3 more
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An Accreting Supermassive Black Hole Buried in a Faint Dwarf Galaxy
The Astrophysical Journal LettersIn 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
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The Astrophysical JournalWe present the properties of a nuclear star cluster (NSC) in the low-surface-brightness galaxy AGC 223218. The disk of the galaxy can be modeled using two Sérsic components with distinct central positions: one representing the inner bright disk and the ...
Tian-Wen Cao +10 more
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