Results 101 to 110 of about 499,224 (333)

Luminous [O III] and [N II] from Tidally Disrupted Horizontal Branch Stars

, 2012
We model the emission lines generated in the photoionised debris of a tidally disrupted horizontal branch star. We find that at late times, the brightest optical emission lines are [N II] \lambda\lambda 6548,6583 and [O III] \lambda\lambda 4959,5007 ...
Barnard, Baumgardt, Behr, Belczynski, Bogdanović, Brassington, Brodie, Charbonnel, Charpinet, Clausen, Colbert, Croton, Dalessandro, Davies, Dorman, Dotter, Drew Clausen, Ferland, Frank, Gratton, Gratton, Heggie, Hills, Irwin, Ivanova, Jimmy A. Irwin, Kundu, Lacy, Lee, Maccarone, Maccarone, Maccarone, Maccarone, Maccarone, Michael Eracleous, Paxton, Peacock, Porter, Ramirez-Ruiz, Rees, Rey, Ripamonti, Roos, Sandage, Sarazin, Searle, Shih, Sigurdsson, Sigurdsson, Sigurdsson, Steinn Sigurdsson, Strubbe, Strubbe, Tautvaišienė, van den Bergh, van Grootel, Zepf   +56 more
core   +1 more source

Possible Horizontal-Branch Stars at High Galactic Latitudes. II

The Astrophysical Journal, 1967
Positions, B magnitudes, and spectral types are given for ten new possible field horizontalbranch stars in two regions, the north and south galactic poles.
openaire   +1 more source

Highly Tunable and Cell‐Remodelable Thiol‐ene Alginate‐Peptide Crosslinked Hydrogels to Recreate Cellular and Organoid Microenvironments for Biofabrication

Advanced Healthcare Materials, EarlyView.
Norbornene‐functionalized alginate is crosslinked with a di‐thiolated peptide sequence cleavable by cell‐secreted matrix metalloproteinases and decorated with cell‐adhesion peptides upon exposure to UV. Thyroid follicles, endometrial and intestinal organoids are encapsulated in a gentle manner with high cell viability and correct phenotype ...
Julia Fernández‐Pérez, Adrián Seijas‐Gamardo, Antonio J. Feliciano, Panagiota Kakni, Anna M. Kip, Paul Wieringa, Stefan Giselbrecht, Matthew B. Baker, Lorenzo Moroni   +8 more
wiley   +1 more source

Discovery of a rapidly pulsating subdwarf B star candidate in omega Cen

, 2008
We report the discovery of the first variable extreme horizontal branch star in a globular cluster (omega Cen). The oscillation uncovered has a period of 114 s and an amplitude of 32 mmags.
A. Calamida, Bedin, Brown, Calamida, Castellani, Castellani, Castellani, Charpinet, Charpinet, Charpinet, D'Antona, D'Antona, D'Cruz, Del Principe, G. Bono, Greggio, Han, Han, Han, Heber, Kilkenny, Lee, Moni Bidin, Napiwotzki, Oreiro, Pietrinferni, Piotto, Reed, S. K. Randall, Stetson, Stetson, Stetson, Stetson, van Grootel   +33 more
core   +1 more source

Tunable Bioresorbable Scaffolds With Marine Sulfated Polysaccharides for Small‐Caliber Vascular Grafts: A Multi‐Layered Strategy Combining Electrospinning and 4‐Axis Printing

Advanced Healthcare Materials, EarlyView.
A multilayered small‐caliber vascular scaffold combining electrospinning and 4‐axis printing is developed and biofunctionalized with marine sulfated polysaccharides from Holothuria tubulosa. The resulting construct exhibits enhanced hemocompatibility, tunable mechanical properties, and supports endothelial and smooth muscle cell adhesion and ...
Gabriele Obino, Alberto Sensini, Tim ten Brink, Gabriele Nieddu, Tristan Bodet, Giovanni Andrea Deiana, Martijn van Griensven, Marilena Formato, Antonio J. Lepedda, Lorenzo Moroni   +9 more
wiley   +1 more source

Phyllotaxis: Leaf arrangement on a horizontal branch and crystallographic borders

Vestnik MGTU
Phyllotaxis is an orderly arrangement of leaves on plant stems and branches. The natural reason of this arrangement is that each species based on the habitat conditions in the course of evolution in one way or another solved the problem of optimising the
Voytekhovsky Yu. L., Gunchenkova A. D.
doaj   +1 more source

Globular Clusters and Horizontal Branch

, 2004
An analysis of available Galactic globular cluster data on metallicity, ages, the distribution of stars on the horizontal branch and the distribution of the periods of RR0 Lyr variables showed that: 1. The latter two characteristics can be used for determining the Oosterhoff type. 2.
openaire   +2 more sources

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

The Spectral Evolution along the Z track of the Bright Neutron Star X-ray Binary GX 17+2

, 2011
Z sources are bright neutron-star X-ray binaries, accreting at around the Eddington limit. We analyze the 68 RXTE observations (270 ks) of Sco-like Z source GX 17+2 made between 1999 October 3-12, covering a complete Z track.
Barret, Didier, Homan, Jeroen, Lin, Dacheng, Remillard, Ronald A.   +3 more
core   +1 more source

Remorphable Architectures: Reprogramming Global Bistability through Locally Bistable Metamaterials

Advanced Materials, EarlyView.
Local bistable reconfiguration in mechanical metamaterials is leveraged in globally bistable architectures to enable in situ reprogrammable transition pathways through state flip of individual building blocks. The local‐to‐global correspondence of instabilities empowers soft robotic systems with on‐demand morphing traits, as well as aerospace ...
Lei Wu, Shujia Chen, Ali Elias Acha, Damiano Pasini   +3 more
wiley   +1 more source