Results 131 to 140 of about 30,791 (258)

Measuring the temperature of the intergalactic medium

open access: yes, 1999
Numerical simulations indicate that the smooth, photoionized intergalactic medium (IGM) responsible for the low column density Lyman-alpha forest follows a well defined temperature-density relation. We show that such an equation of state results in a cutoff in the distribution of line widths (b-parameters) as a function of column density (N) for the ...
Schaye, J.   +3 more
openaire   +3 more sources

A Break in the Size–Stellar Mass Relation: Evidence for Quenching and Feedback in Dwarf Galaxies

open access: yesThe Astrophysical Journal
Mapping stars and gas in nearby galaxies is fundamental for understanding their growth and the impact of their environment. This issue is addressed by comparing the stellar “edges” of galaxies D _stellar , defined as the outermost diameter where in situ ...
Nushkia Chamba   +7 more
doaj   +1 more source

Cosmological Halos: A Search for the Ionized Intergalactic Medium [PDF]

open access: bronze, 2000
Robert M. Geller   +6 more
openalex   +1 more source

Winds and Outflows in Starburst Galaxies and AGN

open access: yes, 2003
Winds and outflows in starburst galaxies and AGN provide important information on the physics of the "central engine", the presence and evolution of (nuclear) starbursts, and the metal enrichment of the nuclear environment and the intergalactic medium ...
Hasinger, Guenther   +2 more
core  

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