Results 161 to 170 of about 307,688 (344)

Revised classification of the SBS carbon star candidates including the discovery of a new emission line dwarf carbon star [PDF]

, 2011
C. Rossi, K. S. Gigoyan, M. G. Avtandilyan, S. Sclavi   +3 more
openalex   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Solid Carbon Dioxide in Regions of Low‐Mass Star Formation [PDF]

, 2001
A. Nummelin, D. C. B. Whittet, E. L. Gibb, P. A. Gerakines, J. E. Chiar   +4 more
openalex   +1 more source

Carbon Stars From Gaia DR3 and the Space Density of Dwarf Carbon Stars

Carbon stars (with atmospheric C/O$>1$) range widely in temperature and luminosity, from low mass dwarfs to asymptotic giant branch stars (AGB). The main sequence dwarf carbon (dC) stars have inherited carbon-rich material from an AGB companion, which has since transitioned to a white dwarf.
Roulston, Benjamin R., Leonhardes-Barboza, Naunet, Green, Paul J., Portnoi, Evan   +3 more
openaire   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

The Abundance of SiC₂ in Carbon Star Envelopes: Evidence that SiC₂ is a gas-phase precursor of SiC dust. [PDF]

Astron Astrophys, 2018
Massalkhi S, Agúndez M, Cernicharo J, Velilla Prieto L, Goicoechea JR, Quintana-Lacaci G, Fonfría JP, Alcolea J, Bujarrabal V.   +8 more
europepmc   +1 more source

The superwind mass-loss rate of the metal-poor carbon star LI-LMC 1813 in the LMC cluster KMHK 1603 [PDF]

, 2003
J. Th. van Loon, J. R. Marshall, M. Matsuura, A. A. Zijlstra   +3 more
openalex   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

The Wanderer: Charting WASP-77A b’s Formation and Migration Using a System-wide Inventory of Carbon and Oxygen Abundances

The Astrophysical Journal
The elemental and isotopic abundances of volatiles like carbon, oxygen, and nitrogen may trace a planet’s formation location relative to H _2 O, CO _2 , CO, NH _3 , and N _2 “snowlines,” or the distance from the star at which these volatile elements ...
David R. Coria, Neda Hejazi, Ian J. M. Crossfield, Maleah Rhem   +3 more
doaj   +1 more source

A 1 AND 2mm SURVEY OF THE CARBON-RICH STAR IRC+10216: A FOCUS ON ISOTOPES [PDF]

, 2023
Lilia Koelemay, L. M. Ziurys
openalex   +1 more source