Sentences with phrase «stellar rotation»

The finding is remarkable, as this pattern of stellar rotation in a dead galaxy strongly contradicts prevalent astrophysical theory regarding the formation of elliptical - shaped galaxies shortly after the Big Bang 13.7 billion years ago.

The finding of a 3.3 - day stellar rotation period for Star A that is estimated to be very similar to that of its recently discovered planetary companion moving in a very close «torch» orbit suggests that the planetary object may have tidally locked the star (Brogi et al, 2012; and Butler et al, 1997).

The skinny black line on a plot of stellar rotation speed versus distance was expected to go down — stars close to the galactic center should orbit faster than stars at the edge because all the mass concentrated at the center of the galaxy pulls most powerfully on the closest stars.

Milgrom used the MOND equation to predict stellar rotation speeds in these galaxies.

Can this atypical system of stellar rotation observed in MACS2129 - 1 be interpreted as a form of «prototype» representing an early stage in the development of elliptic - shaped galaxies?

Warren has planned his next computer runs — each of which take about 2 months — to include 3D effects such as stellar rotation and emission of gravitational waves.

The main part of the school will be a series of lectures on the structure and evolution of stars with various masses including gas giant planets and on the effects of mass loss and stellar rotation upon them.

We measure an inclination between the projected planetary orbital axis and the projected stellar rotation axis of lambda = -26.9 + / - 4.6 deg, indicating a moderate inclination of the planetary orbit.

For each target, SPARCS will observe continuously over at least one complete stellar rotation (5 - 45 days).

And that made it possible for the researchers via Hubble and VLT to study in detail the distribution of stars in the galaxy as well as the patterns of stellar rotation, says Sune Toft: «Thanks to the natural lens we were able to to gaze into the core of this galaxy, which would otherwise have appeared not much larger than a star to our telescopes.

Atlanta has a renewed urgency for the top of its stellar rotation — Russ Ortiz, a rejuvenated Mike Hampton, newcomer John Thomson and precocious lefty Horacio Ramirez — to pitch deep into games.

The White Sox had 40 percent of a stellar rotation.

«Tidal forces transport angular momentum from the stellar rotations to the orbits.

«The trap here was the stellar rotation signal,» agrees Brice - Olivier Demory of the University of Cambridge.

They slow down the stellar rotations, expanding the orbital period.»

The continuous monitoring of the star reveals a stellar rotation period of 11.89 days, 8 times the the planet's orbital period; this period ratio produces stroboscopic effects on the occulted starspots.

It implies that reliable ages can be derived for field dwarf stars with measured colors and rotation periods, and it promises to enable further understanding of various aspects of stellar rotation and activity for cool stars.

Asteroseismic studies, chromospheric activity, and stellar rotation (gyrochronology), are all consistent with the α Cen system being similar in age to, or slightly older than, the Sun, with typical ages quoted between 4.5 and 7 billion years (Gyr).

They slow down the stellar rotations, expanding the orbital period,» Fleming said.

D12's data set [i.e., the data gathered by Dumusque and team] was particularly pathological because the window function happened to contain periodicities that coincided with the stellar rotation period of α Cen B, and its first harmonic; when these signals were filtered out, the significance of the 3.24 d signal was preferentially boosted.

We show that using stellar parameters from galactic stellar synthesis models, and projections to stellar rotation, activity and hence noise levels reproduces the primary intrinsic stellar noise features.