Results 121 to 130 of about 3,892 (249)

Automatic Search for Low-surface-brightness Galaxies from Sloan Digital Sky Survey Images Using Deep Learning

The Astronomical Journal
Low-surface-brightness (LSB) galaxies play a crucial role in our understanding of galaxy evolution and dark matter cosmology. However, efficiently detecting them in large-scale surveys is challenging, due to their dim appearance.
Zengxu Liang, Zhenping Yi, Wei Du, Meng Liu, Yuan Liu, Junjie Wang, Xiaoming Kong, Yude Bu, Hao Su, Hong Wu   +9 more
doaj   +1 more source

The Core-Cusp Problem

Advances in Astronomy, 2010
This paper gives an overview of the attempts to determine the distribution of dark matter in low surface brightness disk and gas-rich dwarf galaxies, both through observations and computer simulations.
W. J. G. de Blok
doaj   +1 more source

SDSS J121811.0+465501.2: A New Low Surface Brightness Galaxy with Low Metallicity [PDF]

, 2007
Y. C. Liang, J. Y. Hu, F. S. Liu, Z. T. Liu   +3 more
openalex   +1 more source

Discovery of a Nearby Low Surface Brightness Spiral Galaxy

The Astronomical Journal, 1999
During the course of a search for compact, isolated gas clouds moving with anomalous velocities in or near our own Galaxy (Braun and Burton 1998 A&A, in press), we have discovered, in the data of the Leiden/Dwingeloo survey (Hartmann and Burton 1997, Atlas of Galactic Neutral Hydrogen, CUP) of Galactic hydrogen, the HI signature of a large galaxy ...
Burton, W. B., Braun, R., Walterbos, R. A. M., Hoopes, C. G.   +3 more
openaire   +2 more sources

The Intracluster Light of Abell 3667: Unveiling an Optical Bridge in LSST Precursor Data

The Astrophysical Journal Letters
Intracluster light (ICL), the diffuse glow of stars stripped from galaxies during a cluster’s formation, is an established tracer of a cluster’s dynamical history. The upcoming Vera C.
Anthony M. Englert, Ian Dell’Antonio, Mireia Montes   +2 more
doaj   +1 more source

BLUE LOW SURFACE-BRIGHTNESS GALAXIES .2. SPECTROSCOPY AND CHEMICAL ABUNDANCES [PDF]

, 1995
In our continued search for young/unevolved galaxies at low redshift we have obtained spectroscopic observations of 16 blue low surface-brightness galaxies.
BERGVALL, N, RONNBACK, J,
core  

Stellar metallicity of galaxies: Influence of environments on low- and high-surface-brightness galaxies in TNG100 simulations

Astronomy & Astrophysics
Context. With the advancement of observational techniques and numerical simulations, low-surface-brightness galaxies (LSBGs) have been intensively investigated. However, a comprehensive understanding of their formation mechanisms and evolutionary history,
Tang Lin, Ye XingYan, Wang Yang, Lin WeiPeng, Li Jing   +4 more
doaj   +1 more source

The Fornax Deep Survey with VST. III. Low surface brightness dwarfs and ultra diffuse galaxies in the center of the Fornax cluster [PDF]

, 2017
A. Venhola, R. F. Peletier, E. Laurikainen, H. Salo, T. Lisker, E. Iodice, Massimo Capaccioli, Gijs Verdois Kleijn, E. A. Valentijn, Steffen Mieske, M. Hilker, Carolin Wittmann, Glenn van de Ven, A. Grado, Marilena Spavone, Michele Cantiello, N. R. Napolitano, M. Paolillo, J. Falcón‐Barroso   +18 more
openalex   +1 more source

Finding Massive Double-exponential Disk Galaxies with Extended Low Surface Brightness Stellar Disk: An IllustrisTNG Exploration

The Astrophysical Journal
We study massive disk galaxies (stellar mass > = 10 ^11 M _⊙ ) at z = 0 from IllustrisTNG simulation to detect galaxies that contain two exponential stellar disks—a central high surface brightness (HSB) disk surrounded by an extended low surface ...
Suchira Sarkar, Kanak Saha
doaj   +1 more source

Low surface brightness galaxies in different environments [PDF]

, 1997
We present the results of a recent survey aimed at detecting and estimating the number density of low surface brightness galaxies (LSBGs) in the field. With a sample of 520 LSBGs over 1.2 square degrees, these galaxies are found to dominate numerically ...
Schwartzenberg, JM, Phillipps, S
core