Results 81 to 90 of about 399,927 (153)

The challenging task of determining star formation rates: the case of a massive stellar burst in the brightest cluster galaxy of Phoenix galaxy cluster

, 2016
Star formation in galaxies at the center of cooling-flow galaxy clusters is an important phenomenon in the context of formation and evolution of massive galaxies in the Universe. Yet, star formation rates (SFRs) in such systems continue to be elusive. We
Bruzual, Gustavo, McDonald, Michael, Mittal, Rupal, Whelan, John T.   +3 more
core   +1 more source

The end-triassic mass extinction event [PDF]

The end-Triassic is the least studied of the five major episodes of mass extinction recognized in the Phanerozoic, and the Triassic-Jurassic boundary is not precisely defined in most parts of the world, with a paucity of good marine sections and an ...
Hallam, A.
core   +1 more source

Flood basalt eruptions, comet showers, and mass extinction events [PDF]

A chronology of initiation dates of the major continental flood basalt episodes has been established from compilation of published K-Ar and Ar-Ar ages of basaltic flows and related basic intrusions.
Rampino, Michael R., Stothers, Richard B.   +1 more
core   +1 more source

Again on the mass extinction issue

Avocetta, 2018
Bruno Massa
doaj   +1 more source

Growth of Spirals: Secular or Driven by Mergers ?

, 2005
The physical phenomena contributing to the galaxy growth can be tested all the way to z= 1. Galaxy mass, extinction, star formation and gas metal abundance can be measured in a robust way, as well as the distribution of the galaxy morphologies. I discuss
Hammer, F.
core   +1 more source

The Critical Role of Dust on the [O iii] Planetary Nebula Luminosity Function’s Bright-end Cutoff

The Astrophysical Journal
We examine the relationship between circumnebular extinction and core mass for sets of [O iii ]-bright planetary nebulae (PNe) in the Large Magellanic Cloud and M31. We confirm that for PNe within 1 magnitude of the planetary nebula luminosity function’s
George H. Jacoby, Robin Ciardullo
doaj   +1 more source

No phylogenetic evidence for angiosperm mass extinction at the Cretaceous-Palaeogene (K-Pg) boundary. [PDF]

Biol Lett, 2023
Thompson JB, Ramírez-Barahona S.
europepmc   +1 more source

Mental models of the sixth mass extinction reveal pathways for transformative sustainability action. [PDF]

Sci Rep
Shreedhar G.
europepmc   +1 more source

Mutilation of the tree of life via mass extinction of animal genera. [PDF]

Proc Natl Acad Sci U S A, 2023
Ceballos G, Ehrlich PR.
europepmc   +1 more source

Mass Extinction in Progress [PDF]

, 2010
Kontos, Nick
core   +1 more source