Sentences with phrase «stellar companion»

That's relatively far apart for a pair of stellar companions.

We detect the low - mass stellar companions of HD 7449 and HD 211847, both members of our high - eccentricity sample.

In 12 years of telescope data from NASA's orbiting Chandra X-ray Observatory, Hailey and colleagues found 12 objects emitting the right X-ray energy to be black holes with stellar companions.

While Star C is a much closer stellar companion of Star A than Star B, it apparently lies near the theoretical minimum mass limit of 0.75 to 0.80 Solar for core fusion of hydrogen (more from Palomar Adaptive Optics System Results).

The two bright stars have another pair of dim stellar companions C and D at a current separation of about 11,000 AUs, or 0.17 light - years.

One possible explanation for the newfound rebel planets is that they have been pulled out of their normal orbits by a nearby stellar companion to their central star.

The dilution of the host star's light by the nearly equal magnitude stellar companion (~ 0.5 magnitudes fainter) significantly affects the derived planetary parameters, and if left uncorrected, leads to an underestimate of the radius and mass of the planet by 10 % and 60 %, respectively.

[3] As a by - product, these observations have also led to the discovery of new, unexpected stellar companions orbiting around some of the most massive stars in the sample.

A close stellar companion around Zeta2 with a separation of 0.046» and a position angle of 11 ° (1978.86) was once suspected from observations in 1978.

It is known to have a double - lined, spectroscopic stellar companion «B» of lower mass.

In another talk this afternoon, Kepler team member and astronomer Jason Rowe of NASA Ames Research Center in Mountain View, California, reported that the spacecraft has spotted two other stellar companions, though it's unclear exactly what they are.

As the star expelled the material, it created a spiral pattern just as a rotating lawn sprinkler does, because a previously unknown stellar companion is dancing around the red giant and causing it to move in response.

Fomalhaut possesses another distant companion, an orange dwarf named Fomalhaut B, so the discovery means this famous star is a triple system with two of the farthest - flung stellar companions ever seen.

The thieves, called blue stragglers, swipe material from a neighbor, leaving behind a dead stellar companion as a calling card, data from the Hubble Space Telescope show.

Zeta1 has a brighter but distant stellar companion, Zeta2 Reticuli, currently located around 3,750 AUs away (based on an observed separation of 310» and HIPPARCOS distance estimates of 39.40 to 39.53 ly), with common proper motion and equal radial velocities (Da Silva and Foy, 1987).

Adaptive optics images obtained with AdOpt@TNG do not reveal additional stellar companions.

Thus, the «planet» could be a very dim red (M) dwarf stellar companion of 79 Ceti.

According to the Astronomiches Rechen - Institut at Heidelberg's ARICNS entry for Gl 33, BD +04 123 was once thought to have a flaring, presumably stellar companion at a separation of around 20 AUs (2.69» at 340.7 ° in 71.62 to 270» at 353.2 ° in 78.69), but Hei 202 was not be found in the reference cited (Wulff Dieter Heintz, 1985).

Other published exoplanets, which have not been observed with high - resolution imaging, could similarly have unresolved stellar companions and thus have incorrectly derived planetary parameters.

Further analysis by Akeson et al (2009) on a puzzling reduction in mid-range infrared excess «visibility» failed to rule out the possibility of an unseen stellar companion (as bright as M0 red dwarf) in a wide orbit with a period measured in years or a very close orbit companion with a period measured in as short as a few days.

The star appears to have a dim optical stellar companion, possibly a red dwarf of 13th magnitude that is seen in telescopes but is probably not actually bound by gravity to Tau Ceti itself.

The star and its known stellar companion B have an observed separation of about 864 AU (96.3» at a HIPPARCOS parallax of 0.11149 + / - 0.00060»), but there may be as many as two optical companions.

The summer after my third year at York University, I worked with Dr. John Caldwell analyzing Hubble data on the low - mass stellar companions of larger stars.

In this «type Ia» supernova, white dwarf's gravity steals material away from a nearby stellar companion.

The dilution of the host star's light by the nearly equal magnitude stellar companion (~ 0.5 magnitudes fainter) significantly affects the derived planetary parameters, and if left uncorrected, leads to an underestimate of the radius and mass of the planet by 10 %... ▽ More We present the discovery of a hot Jupiter transiting an F star in a close visual (0.3» sky projected angular separation) binary system.

Viewed from a planet at Earth's orbital distance around Alpha Centauri A, stellar companion B would provide more light than the full Moon does on Earth as its brightest night sky object, but the additional light at a distance greater than Saturn's orbital distance in the Solar System would not be significant for the growth of Earth - type life.

With an active chromosphere and a (sometimes eccentrically close) binary stellar companion, the star is considered to be a RS Canum Venaticorum (RS CVn) type variable with the variable star designation of SV Leonis Minoris.

The evidence has grown against either star having a close stellar companion (Da Silva and Foy, 1987; and Bonneau et al, 1980, pp. 187 - 188).

They are so called because one of the pair of stellar companions is a normal star and the other a compact object — a white dwarf, neutron star, or possibly a black hole.

At one point, I would have been a stellar companion.

In recent years, based on observations at the WIYN telescope at Kitt Peak, Arizona, Mathieu and his students have established that over three - quarters of blue stragglers, in fact, have stellar companions.

Gas from a stellar companion can fall onto a neutron star's surface, pile up, and explode in a brilliant thermonuclear blast.

These so - called supersoft sources are now thought to be white dwarf stars that cannibalize their stellar companions and then, in many cases, explode

The star, Circinus X-1, is about 20,000 light - years away and is locked into orbit with a stellar companion several times more massive than the sun.

With such a small host star, the team employed a technique that eliminated the possibility that either a background star or a stellar companion could be mimicking what Kepler detected.

Environmental effects, such as interactions with the interstellar medium and forces due to stellar companions, may have long - term implications for the evolution of such systems.

Star B and its stellar companion C are separated by an «average» semi-major axis) of 11.4 AUs.

We have also confirmed a low - mass stellar companion, USco1610 - 2502B (730AU, M5.5).