Results 171 to 180 of about 36,487 (213)

Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

open access: yes
Fujimoto S   +45 more
europepmc   +1 more source

Competing regulatory modules control the transition between mammalian gastrulation modes

open access: yes
Wehmeyer AE   +11 more
europepmc   +1 more source

Star Formation in Irregular Galaxies

Science, 1989
Irregular galaxies can be viewed as laboratories for studying the processes of star formation. This class of galaxy, unlike the more familiar spiral galaxies, forms stars without spiral arms and does so from a chemically less-evolved interstellar medium.
D A, Hunter, J S, Gallagher
openaire   +2 more sources

Dwarf Irregular Galaxies

2004
Dwarf irregular galaxies at optical wavelengths are small, faint and appear to be unstructured and irregular in shape. They are typically gas-rich, metal-poor systems, with varying levels of STAR FORMATION occurring in a haphazard manner across the ...
openaire   +2 more sources

Clumpy Irregular Galaxies

1983
Our planet Earth revolves around the Sun, 150 million kilometers away. Our Sun is just one of the 100 billions or so stars which swarm across our Galaxy, a vast system with diameter around 100 000 light-years.* Our Galaxy is one of the billion other galaxies which our most powerful telescopes are able to detect in the depths of space, at distances up ...
openaire   +1 more source

Abundances in dwarf irregular galaxies

Publications of the Astronomical Society of the Pacific, 1986
The results of abundance studies of dwarf irregular galaxies and similar objects are reviewed with special attention to variations in the CNO element group. Observations of the forbidden N II and semiforbidden C III lines in the most metal-poor galaxy known, IZw 18, are presented for the first time and CNO abundances are derived via a photoionization ...
openaire   +1 more source

Markaryan 277: A clumpy irregular galaxy

Astrophysics, 1988
The results are given of a densitometric and detailed spectrophotometric study of the galaxy Mark. 277. The observational material was obtained with the Zeiss-600 and 6-m reflecting telescope of the Special Astro-physical Observatory. In Mark. 277 there are four condensations with spectra characteristic of giant H II regions. The physical conditions in
N. K. Andreasyan   +2 more
openaire   +1 more source

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