Results 11 to 20 of about 418,206 (216)

The Full-fledged Dwarf Irregular Galaxy Leo A [PDF]

open access: yesThe Astrophysical Journal, 2004
International audienceWe have studied Leo A, an isolated and extremely gas-rich dwarf irregular galaxy of very low stellar mass and metallicity. Ages of the stellar populations in Leo A range from ~10 Myr to ~10 Gyr.
Vladas Vansevičius   +20 more
core   +4 more sources

A Young Star Cluster in the Leo a Galaxy

open access: yesOpen Astronomy, 2015
We report a serendipitous discovery of a star cluster in the dwarf irregular galaxy Leo A. Young age (~28 Myr) and low mass (~510 M⊙) estimates are based on the isochrone fit assuming a metallicity derived for HII regions (Z = 0.0007).
Stonkutė R.   +4 more
doaj   +2 more sources

Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with HESS [PDF]

open access: yes, 2021
We search for an indirect signal of dark matter through very high-energy γ rays from the Wolf-Lundmark-Melotte (WLM) dwarf irregular galaxy. The pair annihilation of dark matter particles would produce Standard Model particles in the final state such as ...
A Reimer (7601036)   +233 more
core   +8 more sources

Bacterial Lysis Observation Over Time Assay (BLOTS) for High-Throughput Isolation, Sequencing, and Characterization of Bacteriophages. [PDF]

open access: yesCurr Protoc
Abstract Phages remain severely under‐sampled, largely due to the limitations of current isolation methods, which are labor‐intensive, low‐throughput, and often restricted to a narrow set of bacterial hosts. To address this gap, we developed a robust and scalable field‐to‐genome workflow that leverages laboratory automation to screen environmental ...
Pang SJL   +4 more
europepmc   +2 more sources

THE OUTER DISKS OF DWARF IRREGULAR GALAXIES [PDF]

open access: yesThe Astronomical Journal, 2011
AJ, in ...
Hunter, Deidre A.   +7 more
openaire   +2 more sources

Magnetic Fields in Irregular Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
Magnetic fields are an important component of the interstellar medium, especially in low-mass galaxies like irregulars where the magnetic pressure may be significant. However, few irregular galaxies have observed magnetic field structures. Using the VLA, the GBT, and the ATCA, we have observed several irregular galaxies in the radio continuum to ...
Kepley, Amanda A.   +6 more
openaire   +4 more sources

Galaxy masses [PDF]

open access: yes, 2014
Galaxy masses play a fundamental role in our understanding of structure formation models. This review addresses the variety and reliability of mass estimators that pertain to stars, gas, and dark matter.
Courteau, Stephane   +10 more
core   +1 more source

Concatenated Irregular Variable Length Coding and Irregular Unity Rate Coding [PDF]

open access: yes, 2009
In this contribution we propose the novel serial concatenation of Irregular Variable Length Coding (IrVLC) and Irregular Unity Rate Coding (IrURC), where we matched the corresponding EXtrinsic Information Transfer (EXIT) functions to each other.
R. G. Maunder   +3 more
core   +1 more source

Lopsidedness in dwarf irregular galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
We quantify the amplitude of the lopsidedness, the azimuthal angular asymmetry index, and the concentration of star forming regions, as represented by the distribution of the H$α$ emission, in a sample of 78 late-type irregular galaxies. We bin the observed galaxies in two groups representing blue compact galaxies (BCDs) and low surface brightness ...
Heller, Ana B.   +4 more
openaire   +2 more sources

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