Viscous-transonic flow in the accretion and stellar-wind problems.
Closed form solution expressing transonic flow in idealized stellar wind and spherical accretion problems including viscosity and thermoconductivity effects
TRANSONIC FLOW↗
SEARCH · Engineering Papers
Results for “stellar”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
On some coincidences between wavelengths of absorption features in HZ 29 and in quasi- stellar objects.
Coincidences in measured positions of absorption lines in spectra of quasi-stellar objects
ASTRONOMICAL SPECTRUM↗
Spectroscopic Observations of Nineteen Quasi- Stellar Radio Sources
Red shift determinations for quasi-stellar radio sources using spectrographic techniques
RED SHIFT↗
Limits to the distances of the quasi-stellar objects deduced from their absorption line spectra.
Red shifts from absorption line spectra of quasi- stellar objects, discussing energy generation mechanism
ENERGY SOURCE↗
Computational methods in stellar pulsation.
Stellar pulsational instability phenomena calculated numerically for infinitesimal amplitude of central core motion
ITERATIVE SOLUTION↗
Mass Dependence in Gravitational Collapse of Stellar Cores
Mass dependence of behavior of stellar core undergoing gravitational collapse examined, using improved equation of state and mean free path for energy transfer
GRAVITATIONAL COLLAPSE↗
Application of Krylov-Bogolubov method to the solution of the stellar three body problem.
Motion in ternary stellar system consisting of central body and close and distant companions
PERTURBATION THEORY↗
On the effect of interstellar material on stellar non-circular velocities in disk galaxies.
Secular increase of stellar noncircular velocities in disk portions of galactic systems, noting gravitational disturbances
INTERSTELLAR GAS↗
Polarimetric observations of 14 quasi-stellar objects.
Optical polarimetric observations of quasi-stellar objects
OPTICAL POLARIZATION↗
Particle-Induced Electromagnetic De-Excitation of Nuclei in Stellar Matter
Excited nuclei electromagnetic de-excitation rate by inelastic scattering in stellar particles calculated as function of temperature, density, transition energy and multipole functions
ATOMIC EXCITATION↗
Abundance anomalies produced by nuclear reactions in stellar surface layers. I.
Energetic nuclear bombardment effects on stellar surface element abundance calculated with statistical theory in A magnetic variable star abundance anomaly
VARIABLE STAR↗
Abundance anomalies produced by nuclear reactions in stellar surface layers. II.
Abundance anomalies in stellar surface layers by proton and alpha particle bombardment caused nucleus breakdown and buildup to lower and higher mass numbers respectively
NUCLEAR REACTION↗
The stellar content of the polar rings in the galaxies NGC2685 and NGC 4650a
We present the results of stellar photometry of polar ring galaxies NGC 2685 and NGC 4650A, using the archival data obtained with the Hubble Space Telescope's Wide Field Planetary Camera 2.
NGC 4038 NGC 4039 interactions stellar content sta↗
On the relationship between stellar rotation and radius in young clusters
We examine the early angular momentum history of stars in young clusters. We reported based on 197 photometric periods in the Orion Flanking Fields and 83 photometric periods in the NGC 2264, that PMS stars apparently do not conserve stellar angular momentum as they evolve down their connective tracks, but instead evolve at nearly constant angular velocity.
stellar rotation angular momentum clusters stars↗
Metrology for the StarLight Stellar Interferometry Mission
We describe the Metrology System for NASA's StarLight mission, a space-based separated-spacecraft stellar interferometer.
metrology stellar interferometery↗
Relativistic Stellar Aberration Requirements for the Space Interferometry Mission
We summarize here results of our recent study of the relativistic stellar aberration requirements for the Space Interferometry Mission (SIM).
Space Interferometry Mission SIM Stellar Aberratio↗
Ground Based Stellar Interferometry at the Jet Propulsion Laboratory
Research and development of techniques of ground-based stellar interferometry have been ongoing at JPL since the late 1980's.
High Resolution Ground Based Stellar Interferometr↗
Spiral ARMS in Galaxies with Counter-Rotating Stellar Disks
Spectroscopic observations by Rubin and other indicate that the S type galaxies NGC 4550, NGC 7217, and NGC 4138 have two-way disks with a substantial portion of the stellar disk orbiting opposite the direction of the rest...However, in 1978, Zang and Hohl found via simulations that one-fold instabilities were enhanced in a two-way disk with no halo...Using a self-gravitating disk with a flat rotation curve, we redo Zang and Hohl's isolated simulations but with more particles plus varying amounts of an inert halo component.
S type galaxies NGC 4550 NGC 7217 NGC 4138 stellar↗