Results 81 to 90 of about 599,828 (297)

On the radial abundance gradients in discs of irregular galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
10 pages, 4 figures, accepted to ...
Eva K. Grebel, Igor Zinchenko, Igor Zinchenko, L. S. Pilyugin, L. S. Pilyugin, L. S. Pilyugin   +5 more
openaire   +5 more sources

The Public Character of Church in the Digital Age☆

International Journal of Systematic Theology, EarlyView.
Abstract The rise of digital technology in recent decades has led to a rapid change of communication and interaction within society and its public dimensions. As this shift in the technological landscape raises theological questions about the appropriate ecclesial use of digital technology, it also touches upon fundamental questions about the church's ...
Benedikt Levin Heymann
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., Narbutis D., Bridžius A., Leščinskaitė A., Vansevičius V.   +4 more
doaj   +1 more source

The faint outer regions of the Pegasus dwarf irregular galaxy: A much larger and undisturbed galaxy [PDF]

, 2009
We investigate the spatial extent and structure of the Pegasus dwarf irregular galaxy (PegDIG) using deep, wide-field, multicolour CCD photometry from the Sloan Digital Sky Survey (SDSS) and new deep H I observations.
A. Kniazev, N. Brosch, G. L. Hoffman, E. Grebel, D. Zucker, S. A. P. Saao, South Africa Salt Foundation, South Africa Steward Observatory, Israel Lafayette College, Usa University of Heidelberg, G. I. F. Astronomy, UK Macquarie University, Australia Anglo-Australian Observatory, A. S. Ras, Russia.   +14 more
semanticscholar   +1 more source

Intrinsic galaxy shapes and alignments I: Measuring and modelling COSMOS intrinsic galaxy ellipticities [PDF]

, 2013
The statistical properties of the ellipticities of galaxy images depend on how galaxies form and evolve, and therefore constrain models of galaxy morphology, which are key to the removal of the intrinsic alignment contamination of cosmological weak ...
Abraham, Allgood, Altay, B. Joachimi, Bailin, Bailin, Bartelmann, Bernstein, Bernstein, Bertin, Bett, Bett, Bett, Bildfell, Binggeli, Binney, Bower, Brainerd, Bridle, Bridle, Bundy, Catelan, Cole, Croft, Davis, E. Semboloni, Erben, Faltenbacher, Fukugita, H. Hoekstra, Hahn, Hahn, Hao, Harker, Heavens, Heymans, Heymans, Hilbert, Hirata, Hoekstra, Hung, Ilbert, J. Hartlap, Jing, Joachimi, Joachimi, Joachimi, Joachimi, Kaiser, Kazantzidis, King, King, Kitching, Knebe, Knebe, Komatsu, Kuhlen, Lambas, Laureijs, Leauthaud, Lee, Mandelbaum, Mandelbaum, Melchior, Mobasher, P. E. Bett, P. Schneider, Parry, Percival, Pereira, Refregier, Rhodes, S. Hilbert, Scarlata, Schneider, Schrabback, Scoville, Spergel, Springel, Springel, T. Schrabback, Takada, van den, van Uitert, Zhang   +84 more
core   +2 more sources

Morphology of star formation regions in irregular galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
The location of HII regions, which indicates the locus of present star formation in galaxies, is analyzed for a large collection of 110 irregular galaxies (Irr) imaged in H$ $ and nearby continuum. The analysis is primarily by visual inspection, although a two-dimensional quantitative measure is also employed.
Ana Heller, Noah Brosch, Elchanan Almoznino   +2 more
openaire   +4 more sources

From cells to pixels: A decision tree for designing bioimage analysis pipelines

Journal of Microscopy, EarlyView.
Abstract Bioimaging has transformed our understanding of biological processes, yet extracting meaningful information from complex datasets remains a challenge, particularly for biologists without computational expertise. This paper proposes a simple general approach, to help identify which image analysis methods could be relevant for a given image ...
Elnaz Fazeli, Robert Haase, Michael Doube, Kota Miura, David Legland   +4 more
wiley   +1 more source

Corvus A: A Low-mass, Isolated Galaxy at 3.5 Mpc

The Astrophysical Journal Letters
We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy Imaging Survey during the initial phase of our ongoing SEmi-Automated Machine LEarning Search for
Michael G. Jones, David J. Sand, Burçin Mutlu-Pakdil, Catherine E. Fielder, Denija Crnojević, Paul Bennet, Kristine Spekkens, Richard Donnerstein, Amandine Doliva-Dolinsky, Ananthan Karunakaran, Jay Strader, Dennis Zaritsky   +11 more
doaj   +1 more source

BVR photometry of the resolved dwarf galaxy Ho IX

, 2004
We present BVR CCD photometry down to limiting magnitude B=23.5 mag for 232 starlike objects and 11 diffuse objects in a 5.4' x 5.4' field of Ho IX. The galaxy is a gas-rich irregular dwarf galaxy possibly very close to M 81, which makes it especially ...
Aparicio, Bertelli, Bomans, Christian, D. J. Bomans, Davidge, Fernie, Fitzpatrick, Flower, Freedman, Georgiev, Georgiev, Georgiev, Georgiev, Georgiev, Georgiev, Georgiev, Georgiev, Georgiev, Heydari-Malayeri, Hill, Hopp, Hopp, Humphreys, Karachentsev, Karachentsev, Makarova, Makarova, Metcalfe, Miller, Notni, Perelmuter, Roberts, Sandage, Sandage, Stetson, Straizys, T. B. Georgiev, Treffers, Vallenari, Yun   +40 more
core   +1 more source

Periodic bursts of star formation in irregular galaxies [PDF]

Astronomy & Astrophysics, 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.
Pelupessy, F.I., van der Werf, P.P., Icke, V.   +2 more
openaire   +6 more sources