Results 31 to 40 of about 12,450 (260)

The spatially-resolved star formation histories of CALIFA galaxies: Implications for galaxy formation [PDF]

open access: yes, 2017
This paper presents the spatially resolved star formation history (SFH) of nearby galaxies with the aim of furthering our understanding of the different processes involved in the formation and evolution of galaxies.
Asari, N. Vale   +11 more
core   +3 more sources

The Disk Substructures at High Angular Resolution Project (DSHARP). III. Spiral Structures in the Millimeter Continuum of the Elias 27, IM Lup, and WaOph 6 Disks

open access: yes, 2018
We present an analysis of Atacama Large Millimeter/submillimeter Array 1.25 mm continuum observations of spiral structures in three protoplanetary disks from the Disk Substructures at High Angular Resolution Project.
Andrews, Sean M.   +15 more
core   +4 more sources

Late-type galaxies observed with SAURON. Two-dimensional stellar and emission-line kinematics of 18 spirals [PDF]

open access: yes, 2005
We present the stellar and gas kinematics of a sample of 18 nearby late-type spiral galaxies (Hubble types ranging from Sb to Sd), observed with the integral-field spectrograph SAURON at the 4.2-m William Herschel Telescope.
Andersen, DR   +9 more
core   +2 more sources

Conformal Parametrisation of Loxodromes by Triples of Circles

open access: yes, 2018
We provide a parametrisation of a loxodrome by three specially arranged cycles. The parametrisation is covariant under fractional linear transformations of the complex plane and naturally encodes conformal properties of loxodromes.
CJ Bishop   +11 more
core   +1 more source

Kinematics of Spiral Arm Streaming in M51 [PDF]

open access: yes, 2007
We use CO and H alpha velocity fields to study the gas kinematics in the spiral arms and interarms of M51 (NGC 5194), and fit the 2D velocity field to estimate the radial and tangential velocity components as a function of spiral phase (arm distance). We
Begeman K. G.   +14 more
core   +2 more sources

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou   +4 more
wiley   +1 more source

Correlation Statistics of Irregular and Spiral Galaxies Mapped in HI

open access: yes, 1996
Several measures of galaxy size and mass obtained from the neutral hydrogen mapping of 70 dwarf irregular galaxies presented in Paper I (Hoffman et al. 1996) are compared statistically to those for the set of all available HI-mapped dwarfs and HI-mapped ...
Hoffman, G. L., Salpeter, E. E.
core   +1 more source

Star formation in grand-design, spiral galaxies. Young, massive clusters in the near-infrared [PDF]

open access: yes, 2012
Deep, near-infrared JHK-maps were observed for 10 nearby, grand-design, spiral galaxies using HAWK-I/VLT to study the distribution of young stellar clusters in them and thereby determine whether strong spiral perturbations can influence star formation ...
Dottori, H., Grosbol, P.
core   +2 more sources

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis   +11 more
wiley   +1 more source

Numerical Method for Computing Seismic Slip-Line Fields and Earth Pressure Coefficients in Cohesionless Backfills [PDF]

open access: yesLithosphere
This study introduced a novel numerical method for calculating seismic slip-line fields and earth pressure coefficients in cohesionless backfills with an inclined and rough retaining wall. By integrating the triangular slice method with the pseudo-static
Huanhuan Li   +4 more
doaj   +1 more source

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