Results 131 to 140 of about 1,827 (268)

Quadratic Frequency Dispersion in the Oscillations of Intermediate-mass Stars

The Astrophysical Journal Letters
Asteroseismology, the study of stellar vibration, has met with great success, shedding light on stellar interior structure, rotation, and magnetism. Prominently known as δ Scutis, the intermediate-mass main-sequence oscillators that often exhibit rapid ...
Subrata Kumar Panda, Shravan Hanasoge, Siddharth Dhanpal, Vageesh D. C.   +3 more
doaj   +1 more source

Concluding remarks

EPJ Web of Conferences, 2013
Precision asteroseismic observations with the Kepler and CoRot satellites enable the internal structure and evolution of pulsating stars to be more exhaustively studied than has hitherto been possible.
Lynas-Gray A.E.
doaj   +1 more source

Recent Progress in Linear and Non-Linear Calculations of Radial Stellar Pulsation [PDF]

, 1974
A. N. Cox
openalex   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Differential population studies using asteroseismology: Solar-like oscillating giants in CoRoT fields LRc01 and LRa01

EPJ Web of Conferences, 2013
Solar-like oscillating giants observed by the space-borne satellites CoRoT and Kepler can be used as key tracers of stellar populations in the Milky Way.
Casagrande L., Baudin F., Mosser B., Valentini M., Noels A., Montalbán J., Girardi L., Chaplin W.J., Barbieri M., Morel T., Chiappini C., Miglio A., Fossati L., Aguirre V. Silva, Baglin A.   +14 more
doaj   +1 more source

Relativistic stellar pulsations in the Cowling approximation [PDF]

, 1988
L. S. Finn
openalex   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

Advanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk, Marcin Michałowski, Bogdan Warcholiński, Michał Milczarek, Adam Gilewicz   +4 more
wiley   +1 more source

Finding binaries from phase modulation of pulsating stars with Kepler

EPJ Web of Conferences, 2017
Binary orbital motion causes a periodic variation in the path length travelled by light emitted from a star towards us. Hence, if the star is pulsating, the observed phase of the pulsation varies over the orbit.
Shibahashi Hiromoto, Murphy Simon, Bedding Tim   +2 more
doaj   +1 more source

Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion‐Strengthened Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling, Silja‐Katharina Rittinghaus, Felix Radtke, Abdelrahman Elsayed, Marina Macias Barrientos, Ulf Ziesing, Louis Becker, Ihsan Murat Kuşoğlu, Christoph Broeckmann, Ulrich Krupp, Avinash Hariharan, Sebastian Weber, Bilal Gökce   +12 more
wiley   +1 more source

Recent progress in the theoretical modelling of Cepheids and RR Lyrae stars

EPJ Web of Conferences, 2017
Cepheids and RR Lyrae are among the most important primary distance indicators to calibrate the extragalactic distance ladder and excellent stellar population tracers, for Population I and Population II, respectively.
Marconi Marcella
doaj   +1 more source