Results 91 to 100 of about 3,556 (304)
The 2021 Hot-type Symbiotic Outburst of YY Herculis: An Optical Follow-up Study
The Astrophysical JournalWe have followed up on the hot-type classical symbiotic outburst reported in YY Her using the Himalayan Chandra Telescope. The outburst coincides with the secondary minima of the system.
L. S. Sonith, U. S. Kamath
doaj +1 more source
Catalogue of Bright IDS Stars with Extensive Cross-Identifications
Open Astronomy, 2014 A new catalogue of bright binary stars is presented. The catalogue1 includes bright IDS systems and bright spectroscopic binaries. Besides IDS data (coordinates, relative positions, magnitudes and spectral classification), the catalogue contains ...
Lipaeva N. A. +2 more
doaj +1 more source
Spectroscopic Binaries and Collapsed Stars: Part II
, 2018 Fifty years ago, borrowing an idea from our Russian friends Guseinov and Zeldovich, we looked for very compact stars (neutron stars and black holes, in modern terminology) as optically-invisible components of single-line spectroscopic binaries. We didn't find any, but our method was very close to the processes that soon identified neutron stars in the ...
Trimble, Virginia, Thorne, Kip S.
openaire +2 more sources
Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses
Advanced Functional Materials, EarlyView.By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso +4 more
wiley +1 more source
Hidden Binaries in Star-forming Regions
The Astrophysical JournalA significant fraction of, and possibly all, stars form in binary or multiple systems. For solar-mass stars in the Galactic field, the distribution of orbital separations is log-normal over 7 orders of magnitude, from 10 ^−2 to 10 ^5 au.
Mary H. Rawcliffe +2 more
doaj +1 more source
A Survey for Young Spectroscopic Binary K7–M4 Stars in Ophiuchus [PDF]
The Astrophysical Journal, 2007 30 pages, 6 figures; accepted in Astrophysical ...
openaire +2 more sources
A spectroscopic study of field and runaway OB stars
, 2007 Identifying binaries among runaway O- and B-type stars offers valuable insight into the evolution of open clusters and close binary stars. Here we present a spectroscopic investigation of 12 known or suspected binaries among field and runaway OB stars ...
Gies, Douglas R. +3 more
core +1 more source
Hierarchical MXene‐Derived NTP/C Nanohybrids for Cryogenic Sodium‐Ion Batteries
Advanced Functional Materials, EarlyView.A hierarchical MXene‐derived NaTi2(PO4)3/C nanohybrid enables efficient sodium‐ion storage down to −40°C by integrating fast ion–electron transport pathways with an ether‐based electrolyte. The system promotes dominant pseudocapacitive behavior and forms a robust inorganic‐rich SEI, collectively mitigating kinetic and interfacial limitations, thereby ...
M. Sai Bhargava Reddy +5 more
wiley +1 more source
The Astrophysical JournalWe report the results from a pilot study to search for black holes and other dark companions in binary systems using direct imaging with SHARK-VIS and the iLocater pathfinder “Lili” on the Large Binocular Telescope.
D. M. Rowan +17 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon +4 more
wiley +1 more source