Results 141 to 150 of about 4,926,824 (288)

Galaxy Formation

, 2007
15 pages, 3 figures, invited review talk, to appear in the ASP conference proceedings of the "Frank N. Bash Symposium 2007: New Horizons in Astronomy", editors: A. Frebel, J. Maund, J.
openaire   +2 more sources

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

A Model for the Formation of a Spherical Galaxy [PDF]

, 1969
Richard B. Larson
openalex   +1 more source

And the winner is: galaxy mass

, 2011
The environment is known to affect the formation and evolution of galaxies considerably best visible through the well-known morphology-density relationship.
A Dressler, A Pasquali, B Rogers, CJ Lintott, D Thomas, D Thomas, D Thomas, DG York, H Kuntschner, IK Baldry, K Schawinski, LAM Tasca, M Cappellari, M Postman, M Sarzi, YJ Peng   +15 more
core   +1 more source

Observational Evidence for an Age Dependence of Halo Bias

, 2006
We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the expected mass ...
Frank C. van den Bosch, Gao L., H. J. Mo, Mo H. J., Weinmann S. M., Xiaohu Yang   +5 more
core   +2 more sources

Formation of H₂and Galaxies in the Hot Universe [PDF]

, 1969
Hidenori Takeda, Humitaka Sat o, Takuya Matsuda   +2 more
openalex   +1 more source

The Impact of Molecular Hydrogen Cooling on the Galaxy Formation Threshold

The Astrophysical Journal Letters
We study the impact of molecular (H _2 ) and atomic (H i ) hydrogen cooling on the galaxy formation threshold. We calculate the fraction of dark matter (DM) halos that exceeds a critical mass required for star formation, M _crit ( z ), as a function of ...
Ethan O. Nadler
doaj   +1 more source

Galaxy Formation

, 2005
I summarize current knowledge of galaxy formation with emphasis on the initial conditions provided by the Lambda CDM cosmology, integral constraints from cosmological quantities, and the demographics of high-redshift protogalaxies. Tables are provided summarizing the number density, star formation rate and stellar mass per object, cosmic star formation
openaire   +2 more sources

Early Results from GLASS-JWST. XXV. Electron Density in the Interstellar Medium at 0.7 ≲ z ≲ 9.3 with NIRSpec High-resolution Spectroscopy

The Astrophysical Journal Letters
The electron density ( n _e ) of the interstellar medium (ISM) in star-forming galaxies is intimately linked to star formation and ionization condition.
Sijia Li, Xin Wang, Yuguang Chen, Tucker Jones, Tommaso Treu, Karl Glazebrook, Xianlong He, Alaina Henry, Xiao-Lei Meng, Takahiro Morishita, Guido Roberts-Borsani, Lilan Yang, Hao-Ran Yu, Antonello Calabrò, Marco Castellano, Nicha Leethochawalit, Benjamin Metha, Themiya Nanayakkara, Namrata Roy, Benedetta Vulcani   +19 more
doaj   +1 more source

Formation of Triaxial Galaxy [PDF]

Journal of Astronomy and Space Sciences, 1987
Results of N-body simulation of dissipationless cold collapse of spherical gravitating system are presented. We compared the results with properties of elliptical galaxies. The system gradually evolved to triaxial system. The projected density profile is
Jang-Hyeon Park, Soo-Yong Kim
doaj