Results 31 to 40 of about 53,403 (252)

Surface Brightness Plateau in S4G Galaxies

Galaxies, 2020
Using 3.6-μm data from 2112 galaxies, we show that, contrary to widely held expectations of a continuous steep decline, radial surface brightness profiles of galaxies tend to flatten and form extended plateaus beyond 27–28 magAB/arcsec2.
Alan Sipols, Alex Pavlovich
doaj   +1 more source

Low-surface-brightness Galaxies are Missing in the Observed Stellar Mass Function

The Astrophysical Journal, 2023
We investigate the impact of the surface-brightness (SB) limit on the galaxy stellar mass functions (GSMFs) using galaxy catalogs generated from the Horizon Run 5 ( HR5 ) simulation.
Juhan Kim, Jaehyun Lee, Clotilde Laigle, Yohan Dubois, Yonghwi Kim, Changbom Park, Christophe Pichon, Brad K. Gibson, C. Gareth Few, Jihye Shin, Owain Snaith   +10 more
doaj   +1 more source

A Morphological-type dependence in the mu_0-log(h) plane of Spiral galaxy disks [PDF]

, 2001
We present observational evidence for a galaxy `Type' dependence to the location of a spiral galaxy's disk parameters in the mu_0-log(h) (central disk surface-brightness - disk scale-length) plane.
Alister W. Graham, Andredakis Y. C., Beijersbergen M., Davies J. I., de Blok W. J. G., de Jong R. S., Kraan-Korteweg R. C., Longmore A. J., W. J. G. de Blok   +8 more
core   +2 more sources

PEARLS: Low Stellar Density Galaxies in the El Gordo Cluster Observed with JWST

The Astrophysical Journal, 2023
A full understanding of how unusually large ultradiffuse galaxies (UDGs) fit into our conventional theory of galaxy formation remains elusive, despite the large number of objects identified locally.
Timothy Carleton, Seth H. Cohen, Brenda L. Frye, Alex Pigarelli, Jiashuo Zhang, Rogier A. Windhorst, Jose M. Diego, Christopher J. Conselice, Cheng Cheng, Simon P. Driver, Nicholas Foo, Rachana A. Bhatawdekar, Patrick Kamieneski, Rolf A. Jansen, Haojing Yan, Jake Summers, Aaron S. G. Robotham, Christopher N. A. Willmer, Anton M. Koekemoer, Scott Tompkins, Dan Coe, Norman A. Grogin, Madeline A. Marshall, Mario Nonino, Nor Pirzkal, Russell E. Ryan Jr.   +25 more
doaj   +1 more source

The Dwarf Galaxy Population of the Dorado group down to Mv=-11 [PDF]

, 2000
We present V and I CCD photometry of suspected low-surface brightness dwarf galaxies detected in a survey covering ~2.4 deg^2 around the central region of the Dorado group of galaxies.
Binggeli B., Binggeli B., Cláudia Mendes de Oliveira, de Block W., Drinkwater M. J., Eleazar R. Carrasco, Infante L., Irwin M., Leopoldo Infante, Lorrimer S. J., Michael Bolte, Shakhbazian R. K.   +11 more
core   +2 more sources

Spectroscopy of Low Surface Brightness Galaxies with the Hobby-Eberly Telescope [PDF]

, 2002
We have obtained low resolution spectra of nineteen red and blue low surface brightness galaxies, using the Marcario Low Resolution Spectrograph on the 9.2m Hobby-Eberly Telescope.
Davies R. L., de Blok W. J. G., de Blok W. J. G., de Blok W. J. G., de Blok W. J. G., Gary J. Hill, Gerritsen J. P. E., Goudfrooij P., Inger Jørgensen, Jorgensen I., Marcel P. Bergmann, Pagel B. E. J., Ronnback J., Scalo J. M., Tully R. B., van den Hoek L. B.   +15 more
core   +2 more sources

Giant Low Surface Brightness Galaxies

Bulletin de la Société Royale des Sciences de Liège, 2018
In this paper, we present radio observations of the giant low surface brightness (LSB) galaxies made using the Giant Metrewave Radio Telescope (GMRT). LSB galaxies are generally large, dark matter dominated spirals that have low star formation efficiencies and large HI gas disks.
Das, Mousumi, Mishra, Alka, Kantharia, Nimisha G.   +2 more
openaire   +2 more sources

Dwarf and Low Surface Brightness Galaxies [PDF]

Symposium - International Astronomical Union, 1996
The terms ‘dwarf’ and ‘low surface brightness’ are commonly used to mean a variety of different things, and are sometimes used interchangeably. It is thus necessary to explicitly quantify the definitions which are adopted. Here I shall limit the discussion to field galaxies which are [exponential] disks characterized by a scale size h and central ...
openaire   +4 more sources

Dark Matter Dogma: A Study of 214 Galaxies

Galaxies, 2020
The aim of this paper is to test the need for non-baryonic dark matter in the context of galactic rotation and the apparent difference between distributions of galactic mass and luminosity.
Alan Sipols, Alex Pavlovich
doaj   +1 more source

Dwarf Galaxies as Low Surface Brightness Galaxies [PDF]

International Astronomical Union Colloquium, 1999
AbstractBecause of the weak correlation between surface brightness and luminosity, as galaxy surveys reach to lower surface brightnesses, increasing numbers of dwarf galaxies are found. Thus, studies of dwarf galaxies are relevant to our understanding of the low surface brightness universe. In particular, studies of nearby LSB dwarfs may help to answer
openaire   +1 more source