Sentences with phrase «tight orbit»

In fact, as another recent modeling study demonstrated, planets in tight orbits around red dwarf stars might be getting lashed by an insane number of high - energy solar flares, stripping their atmospheres faster than they can be replenished.

Earlier this year, astronomers announced the discovery of a massive planet in tight orbit around a star so young it still features a disk of circumstellar gas and dust.

Superflares - According to one recent hypothesis, unusually intense stellar flares from a sun - like («Sol - type») star could be caused by the interaction of the magnetic field of a giant planet in tight orbit with that star's own magnetic field.

Three inner super-Earths move in very tight orbits around HD 40307 (more).

The group, led by physics professor emeritus Saul Rappaport, determined that in order for the planet to maintain its extremely tight orbit around its star, it would have to be incredibly dense, made almost entirely of iron — otherwise, the immense tidal forces from the nearby star would rip the planet to pieces.

Binary evolution calculations indicate that PSR J2129 − 0429 has an orbital period almost exactly at the bifurcation period between systems that converge into tighter orbits as black widows and redbacks and those that diverge into wider pulsar — white dwarf binaries.

The planets circle a tiny, dim, nearby star in tight orbits all less than 2 weeks long.

Among the 1,900 - and - counting confirmed alien planets found so far, we've seen everything from bizarro, jumbo versions of Jupiter in scorchingly tight orbits to exoplanets dozens of times farther out than Neptune, and even worlds circling two stars, like Tatooine in Star Wars.

Most super-Earths, thought to be largely solid rock and metal with modest amounts of gas, follow tighter orbits than Earth, and often a star has several.

At the meeting, he argued that brown dwarfs in tight orbits get devoured by their sunlike parent stars.

Before Kepler, astronomers only knew of giant Jupiter - sized exoplanets, some in astonishingly tight orbits around their stars.

They predicted seven properties, including how tight the orbit would be, the angle of the orbit relative to BN's direction and the recoil felt by theta - 1C.

Planets with extremely tight orbits offer scientists a wealth of data: For instance, each week Kepler 78b circles its star about 20 times, giving researchers numerous opportunities to observe its behavior.

Approximately 650 light - years away, a Jupiter - like planet is caught in an uncomfortably tight orbit around its toasty hot host star.

Our group, along with international collaborators, is involved in several ongoing multi-frequency surveys of the GC with the aim of detecting pulsars in even tighter orbits around Sgr A *.

The second experiment aims to detect and study a radio pulsar in tight orbit about Sgr A * using radio telescopes (including the Atacama Large Millimeter Array or ALMA).

Over the past decade, dozens of so - called «hot Jupiters» have been found: massive, gaseous planets in very tight orbits around their mother stars.

According to one recent hypothesis, unusually intense stellar flares from a sun - like («Sol - type») star could be caused by the interaction of the magnetic field of a giant planet in tight orbit with that star's own magnetic field (Rubenstein and Schaefer, 2000).

(Many worlds that reside in extremely tight orbits have been found by indirect means; it is the temperate, so - called Goldilocks zone where Earth analogues might be found that has proved most elusive.)

By providing astrometry with a precision of the order of 10 microarcsecond and imaging with a resolution of 4 milliarcseconds, GRAVITY will be able to monitor stars with tighter orbits around Sgr ~ A * (within a few hundreds gravitational radii).

Based on the numbers of such planets that astronomers have found in tight orbits around stars nearer to our sun, Gilliland's colleagues expected to see 15 or 20 planets in 47 Tucanae.

Eventually, the sun tames this wild child, drawing the planet into a tight orbit around it.

However, Mandell says there may well be planetary companions around hot Jupiters at distances larger than the tight orbits probed in this earliest batch of Kepler data.

Not a pretty prospect, but it's probably the eventual fate of all planets, including our own, that circle their stars in a tight orbit, astrophysicists say in the current Monthly Notices of the Royal Astronomical Society.

Two of the black holes embrace in a tight orbit, spinning out jets of gas, while the third waits off to the side.

But given that the era of discovering extrasolar planets is still in its infancy, with methods that more easily detect planets if they are massive and in tight orbits, how can we be certain that the exoplanets discovered so far are typical?

That puts the planet in a scorching orbit 14 times closer to its star than Mercury's distance from our sun — by far the tightest orbit ever seen.

These are large gas giants that look a little like the planet Jupiter in our solar system, although they are much hotter as they circle their star in a very tight orbit: about a hundred times closer than our Jupiter is to the sun.

You might think such a tight orbit would scorch the surface of the planet.

Cordes suggests that perhaps the bursts» strange properties could be due to a neutron star in a tight orbit around a black hole, where the effects of immense gravitational forces could mask any periodicity to bursts coming from the neutron star.

The other, the Nice model, suggests the four gas giants (Jupiter through Neptune) initially had tiny, tight orbits, which eventually spread out slowly to what we see today.

But the current exoplanet catalogue primarily reflects the low - hanging fruit — extremely large planets in tight orbits, whose visible or gravitational effects on their stars are more pronounced.

The collapse of the second star leaves two black holes in a tight orbit.

The rocky world of roughly Earth's mass is in a tight orbit around its dim star, located in its «habitable zone.»

How do you get one jupiter - size planet into a tight orbit?

«We were in a low, tight orbit,» Rayman says.

«People started to get a bit worried that COROT might not find these small planets in tight orbits, so the discovery of COROT - Exo - 7b is reassuring news,» says Rens Waters of the University of Amsterdam, who was not part of the discovery team.

Astronomers expected that such dwarf stars might host many Earth - sized planets in tight orbits, making them promising targets in the hunt for extraterrestrial life, but TRAPPIST - 1 is the first such system to be found.

And the tight orbits of the nearest stars meant that all that mass was packed into a relatively tiny space — tiny enough to imply a density in the galactic middle at least a trillion times that of the galactic suburbs.

PULSAR PAIR A system of two radio beam — emitting pulsars locked in tight orbits, illustrated here, is an ideal test bed for measuring gravitational waves and other effects of general relativity.

The tight orbit of Kepler - 78b poses a challenge to theorists.

A less massive planet, such as one made entirely of gas, would not be able to hold together in such a tight orbit.

General relativity predicts that two massive objects in a tight orbit around each other will spiral in, slowly at first and then faster until they merge, distorting space - time in perturbations that ripple in all directions.

The white spot at the center may be two stars locked in a tight orbit.

The planet zips around its host star every 8.5 hours in an extremely tight orbit, and its daytime temperatures probably top 2,000 ° Celsius.

As it spins around in this tight orbit, gravity from the host star is pulling away its outer layers.

However, other predictions, such as not expecting massive planets in tight orbits, is still largely contradictory to the hypothesis and greater testing with additional discoveries will be needed.

HD 189733 A has a Jupiter - class planet in a tight orbit, where methane and water vapor have been detected by filtering the star's light through the planet's atmosphere (more).