• No results found

stellar models

Study of visualizations for n-body stellar models

Study of visualizations for n-body stellar models

... Stellar modeling on the galactic level involves calculation of the n-body problem. The n-body problem uses Newton’s laws of motion and gravity to calculate the motions of all the objects in the system given their ...

36

Old star clusters: Bench tests of low mass stellar models

Old star clusters: Bench tests of low mass stellar models

... stellar models. This short review will highlight some recent tests of stellar evolution models that make use of photometric and spectroscopic observations of resolved old star ...

9

An M Dwarf Companion to an F-type Star in a Young Main-sequence Binary

An M Dwarf Companion to an F-type Star in a Young Main-sequence Binary

... current models seem to systematically underestimate the radii by up to 5% percent compared to observations of detached binaries ( ...the models for some stars ( Boyajian et ...between models and ...

7

On the effects of rotation on acoustic stellar pulsations: validity domains of perturbative methods and close frequency pairs

On the effects of rotation on acoustic stellar pulsations: validity domains of perturbative methods and close frequency pairs

... Pulsation frequencies of acoustic modes are calculated for realistic rotating stellar models using both a perturbative and a two-dimensional approach. A comparison between the two yields validity domains ...

8

A consistent estimate for gravitational wave and electromagnetic transient rates

A consistent estimate for gravitational wave and electromagnetic transient rates

... of stellar evolution models, particularly at the low metallicities and in the binary environments required to create the most massive transients? Barrett et ...our stellar models that are ...

14

Asteroseismic Constraints on the Models of Hot B Subdwarfs: Convective Helium-Burning Cores

Asteroseismic Constraints on the Models of Hot B Subdwarfs: Convective Helium-Burning Cores

... in stellar models with overshoot which exhibit a sharp abun- dance gradient at the convective ...in models with partial mixing, induced semiconvection or maximal overshoot ensures the stability of ...

10

Binary population and spectral synthesis version 2 1 : construction, observational verification and new results

Binary population and spectral synthesis version 2 1 : construction, observational verification and new results

... starburst stellar models, overplotted on this SDSS galaxy data, as a function of stellar population age and ...single-age stellar models are not ...the models, while there ...

70

Stellar evolution and the Standard Solar Model

Stellar evolution and the Standard Solar Model

... of stellar models is able to predict with precision stellar radii the theoretical models should account for the solar luminosity and radius at the solar age, without tuning any free ...

13

The EBLM project : III  A Saturn size low mass star at the hydrogen burning limit

The EBLM project : III A Saturn size low mass star at the hydrogen burning limit

... We report the discovery of an eclipsing binary system with mass-ratio q ∼ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light ...

6

Discovery of WASP 65b and WASP 75b : two hot Jupiters without highly inflated radii

Discovery of WASP 65b and WASP 75b : two hot Jupiters without highly inflated radii

... Padova stellar models by Girardi et ...(YY) models by Demarque et al. (2004), c) the Teramo models of Pietrinferni et ...Victoria-Regina stellar models (VRSS) of VandenBerg et ...

11

Realistic ionizing fluxes for young stellar populations from 0.05 to 2 ZÔ

Realistic ionizing fluxes for young stellar populations from 0.05 to 2 ZÔ

... photoionization models for evolving ...(1992) models for hot stars close to the main se- ...non-LTE models cover- ing the main sequence evolution of O stars were first intro- duced by Stasi´ nska ...

21

The Shapes of the Rotation Curves of Star forming Galaxies Over the Last ~10 Gyr

The Shapes of the Rotation Curves of Star forming Galaxies Over the Last ~10 Gyr

... the stellar-scaled scaling prescription, we stacked deep MUSE and KMOS observations of the spatially-resolved nebular emission from ≈1500 star-forming galaxies between z ≈ ...redshift, stellar mass, and ...

30

Massive main-sequence stars evolving at the Eddington limit

Massive main-sequence stars evolving at the Eddington limit

... the models with Γ(R ) > ...these models, which started on the main-sequence with initial masses above 300 M are extremely helium-rich and may correspond to the most extreme late-type WN stars (Sander et ...

24

Buckner_unc_0153D_14949.pdf

Buckner_unc_0153D_14949.pdf

... this stellar corpse, referred to as a white dwarf star, can be reanimated by its ...As stellar plasma temperatures rise, there is no longer a mechanism in place to cool the accreted material, and a ...

198

The colours of the extreme universe

The colours of the extreme universe

... semi-empirical models to characterize both the nuclear and host galaxy emission ...dust, stellar populations, and cold dust in star forming ...parameters, stellar masses, and star formation ...

198

A seismic and gravitationally bound double star observed by Kepler: implication for the presence of a convective core

A seismic and gravitationally bound double star observed by Kepler: implication for the presence of a convective core

... erent stellar model ...the models is consistent with that determined with astrometry. For 3 models, the age of the bi- nary system is in the range ...the models is consistent with a value of ...

19

Cosmic CARNage II: the evolution of the galaxy stellar mass function in observations and galaxy formation models

Cosmic CARNage II: the evolution of the galaxy stellar mass function in observations and galaxy formation models

... 2006), models are now able to reproduce the high-mass end of the galaxy stellar mass function over a range of ...However, models still typically overpro- duce the number of low-mass galaxies at high ...

15

A skewer survey of the Galactic halo from deep CFHT and INT images

A skewer survey of the Galactic halo from deep CFHT and INT images

... The stellar halo of the Milky Way only contains a tiny frac- tion of its stars, yet it provides important clues about the for- mation of the Galaxy and galaxy formation in ...the stellar structure of the ...

14

A very bright, very hot, and very long flaring event from the M Dwarf Binary system DG CVn

A very bright, very hot, and very long flaring event from the M Dwarf Binary system DG CVn

... the stellar ionizing fl ux may be signi fi cant, especially early in the life of the star and planetary ...of stellar fl ares on exoplanet atmo- spheres, like Segura et ...

20

Line Emission from Radiation-pressurized H II Regions. II. Dynamics and Population Synthesis

Line Emission from Radiation-pressurized H II Regions. II. Dynamics and Population Synthesis

... Second, we compare integrated galaxies from the SDSS catalog and the high-redshift universe to our synthetic galaxies. We find that, while we are able to reproduce the spread of individual H ii regions, our models ...

13

Show all 10000 documents...

Related subjects