Results 71 to 80 of about 176,382 (265)
A new galactic chemical evolution model with dust: results for dwarf irregular galaxies and DLA systems [PDF]
, 2016 We present a galactic chemical evolution model which adopts updated prescriptions for all the main processes governing the dust cycle. We follow in detail the evolution of the abundances of several chemical species (C, O, S, Si, Fe and Zn) in the gas and
L. Gioannini +3 more
semanticscholar +1 more source
The Evolutionary Status of Isolated Dwarf Irregular Galaxies II. Star Formation Histories and Gas Depletion [PDF]
Astron.J.121:2003-2019,2001, 2001 The results of UBV and H alpha imaging of a large sample of isolated dwarf irregular galaxies are interpreted in the context of composite stellar population models. The observed optical colors are best fit by composite stellar populations which have had approximately constant star formation rates for at least 10 Gyr.
arxiv +1 more source
The CO contents of dwarf irregular galaxies
The Astrophysical Journal, 1987 A search has been conducted for CO in 16 dwarf irregular galaxies selected to span a wide range of infrared luminosity and color. CO was detected in six dwarf galaxies spanning the entire range in optical color and IR luminosity. The dwarf galaxies extend by three orders of magnitude in luminosity the correlation between IR and CO luminosities found ...
TACCONI, LJ, Young, JS
openaire +3 more sources
MobiCOP: A Scalable and Reliable Mobile Code Offloading Solution
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 Code offloading is a popular technique for extending the natural capabilities of mobile devices by migrating processor‐intensive tasks to resource‐rich surrogates. Despite multiple platforms for offloading being available in academia, these frameworks have yet to permeate the industry.
José I. Benedetto +6 more
wiley +1 more source
A Young Star Cluster in the Leo a Galaxy
Open 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 +1 more source
The Astrophysical Journal, 2023 We conducted an optical monitoring survey of the Sagittarius dwarf irregular galaxy (SagDIG) during the period of 2016 June–2017 October, using the 2.5 m Isaac Newton Telescopeat La Palama.
Tahere Parto +9 more
doaj +1 more source
Bose‐Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 We present a comparative confrontation of both the Bose‐Einstein Condensate (BEC) and the Navarro‐Frenk‐White (NFW) dark halo models with galactic rotation curves. We employ 6 High Surface Brightness (HSB), 6 Low Surface Brightness (LSB), and 7 dwarf galaxies with rotation curves falling into two classes.
M. Dwornik +4 more
wiley +1 more source
Periodic bursts of Star Formation in Irregular Galaxies [PDF]
Astron.Astrophys. 422 (2004) 55-64, 2004 We present N-body/SPH simulations of the evolution of an isolated dwarf galaxy including a detailed model for the ISM, star formation and stellar feedback. Depending on the strength of the feedback, the modelled dwarf galaxy shows periodic or quasi-periodic bursts of star formation of moderate strength.
arxiv +1 more source
The Observer’s Guide to the Gamma‐Ray Burst Supernova Connection
Advances in Astronomy, Volume 2017, Issue 1, 2017., 2017 We present a detailed report of the connection between long‐duration gamma‐ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained what we know about GRB‐SNe.
Zach Cano +4 more
wiley +1 more source
YOUNG STAR CLUSTERS IN THE OUTER DISKS OF LITTLE THINGS DWARF IRREGULAR GALAXIES [PDF]
, 2016 We examine FUV images of the LITTLE THINGS sample of nearby dwarf irregular (dIrr) and Blue Compact Dwarf galaxies to identify distinct young regions in their far outer disks.
D. Hunter +2 more
semanticscholar +1 more source