Sentences with phrase «companion star with»

Our measurements result in an outburst amplitude greater than 4.3 magnitudes, which favours an orbital period < 21 h and a companion star with a spectral type later than ~ A0.

Based on the observations, Sahai and his colleagues Mark Morris of the University of California, Los Angeles, and Samantha Scibelli of the State University of New York at Stony Brook developed a model of a companion star with an accretion disk to explain the ejection process.

That star, now either a superdense neutron star or black hole, is ripping material from a «normal» companion star with its strong gravitational pull.

Not exact matches

The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before

Recent and upcoming releases include the romance - horror hybrid Spring; the hotly - anticipated The Look Of Silence, Oppenheimer's companion piece to The Act Of Killing; The Connection, a 70's - set true crime epic and European flipside to William Friedkin's The French Connection starring Oscar ® winning Best Actor Jean Dujardin (The Artist); The Keeping Room, from director Daniel Barber (Harry Brown), based on Julia Hart's acclaimed Black List screenplay, starring Brit Marling, Hailee Steinfeld and Sam Worthington; the multiple Cannes award winning The Tribe, filmed entirely in Ukrainian Sign Language with a cast of deaf, non-professional actors; and a remastered re-release, in conjunction with Olive Films, of the 1981 disasterpiece Roar, the most dangerous film ever made, starring Tippi Hedren, Melanie Griffith and a cast of 150 untrained lions, tigers and exotic animals.

NY1's Grace Rauh caught up today with AG Andrew Cuomo's mother, former First Lady Matilda Cuomo, who took a bit of a dig at the cooking skills of her son's live - in companion, Food Network star Sandra Lee.

Combining the data with theoretical models, the team estimated that the initial mass of the star was about 20 times the mass of our sun, though it lost most of its mass, probably to a companion star, and slimmed down to about 5 solar masses prior to exploding.

Hailey and his team used Chandra data because black holes at the galactic center should be most visible via x-rays, produced when the black holes form a binary system with a low - mass star and feed on their captured companion.

For example, Project 1640 used all its filters to capture this image of a star with a companion.

Close encounter Tracing the trajectory of the star and its brown dwarf companion back in time, Mamajek's team found with 98 % confidence that Scholz's star passed within the Solar System's Oort cloud, a reservoir of comets, about 70,000 years ago.

A charlatan star that appeared to explode earlier this year may have faked its own death to unite with a secret companion.

Finding the signatures of low - mass stars and their companions will become much more efficient with the launch of NASA's infrared - sensitive James Webb Space Telescope in 2019.

In all, the team found 17 candidate brown dwarf companions to red dwarf stars, one brown dwarf pair, and one brown dwarf with a planetary companion.

But when Hugues Sana of the University of Amsterdam in the Netherlands and colleagues looked at 71 stars with masses greater than 15 times that of our sun, they found that more than 70 per cent revolve with a companion in a binary system (Science, doi.org/h4k).

Working with UW astronomer Eric Agol, doctoral student Ethan Kruse has confirmed the first «self - lensing» binary star system — one in which the mass of the closer star can be measured by how powerfully it magnifies light from its more distant companion star.

«Not only does this star have the high velocity expected if it is recoiling from a supernova explosion, but the combination of its low mass, high luminosity and carbon - rich composition appear impossible to replicate in a single star — a smoking gun that shows it must have originally formed with a binary companion,» adds Ben Ritchie (Open University), a co-author on the new paper.

«If these galaxies grow through merging with minor companions, and these minor companions come in large numbers and from all sorts of different angles onto the galaxy, this would eventually randomize the orbits of stars in the galaxies.

They could also be created when electrons travelling close to the speed of light collide with light streaming from the companion star.

The planet's swooping flybys create tidal waves on the host star, which combine with the gravitational tug of its companion star to pull on the planet in unpredictable ways.

When Sigurdsson and colleagues analyzed images of the white dwarf from the Hubble Space Telescope, they concluded that the distant, unseen companion is not a low - mass star, as many researchers had thought, but a planet with about 2.5 times the mass of Jupiter.

Over time the companion star spirals into its dying partner, trailing clouds of gas along with it and forming a thick disk along the plane of its orbit.

If the star were paired with another star, the pulsar may suck in matter from its companion, causing it to twirl hundreds of times per second.

Material falling from the exploded star onto the compact companion would have been heated and blasted back into space in two narrow jets, along with a beam of radiation.

Suppose it has a nonluminous companion that circles it in an orbit whose plane does not coincide with our line of sight to the star.

Perhaps even more interesting is the fact that of the dozen or so single stars nearest the sun nearly half appear to have dark companions with a mass between one and 10 times the mass of Jupiter.

The astronomers determined that this galaxy's rapid star formation was likely triggered by a close encounter with its slightly smaller companion, which already hosts about 35 billion solar masses of stars and is increasing its rate of starburst at the breakneck pace of 540 solar masses per year.

Observations made by Peter van de Kamp of the Sproul Observatory at Swarthmore College over a period of 40 years suggest that Barnard's star is accompanied by at least two dark companions, each with about the mass of Jupiter.

This artist's illustration shows a black hole (center of disk) with matter from a massive companion star falling onto it.

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.

The traditional view held that a white dwarf, locked in a binary pairing with another star, sucked matter from its companion, growing ever larger in size until it could no longer support its own weight.

In work published in The Astrophysical Journal, the Monash and Warwick scientists significantly improved the precision with which they could measure the orbit of Scorpius X-1, a double star system containing a neutron star that feeds off a nearby companion star.

© Estate of John Whatmough — larger image (Artwork from Extrasolar Visions, used with permission from Whatmough) Glowing red through gravitational contraction, the candidate brown dwarf companion to Proxima Centauri is depicted with two moons (one eclipsing the flare star) with distant Alpha Centauri A and B at upper right, as imagined by Whatmough.

Star C (protruding yellow spot at upper right) was confirmed as Gl 105 A's fainter companion with Palomar's 60» telescope (more).

CM Draconis Aa has a close, double - lined spectroscopic companion Ab, with which it forms a non-contact, eclipsing binary, and a wide common - proper - motion companion B. Stars Aab and B have an observed separation of about 420 AUs (25.7»).

Discoveries of Sun - like stars with host exoplanets as well as red dwarf companions have been common, and many appear to be old and stable enough for life to have evolved (RAS new releases of April 16 and April 19, 2011; and University of St. Andrews press release).

The distance separating Alpha Centauri A from its companion star B averages 23.7 AUs (semi-major axis of 17.57» with a HIPPARCOS distance estimate of 4.40 light - years).

The primary stars around which we searched for companions come from a list of bright stars with well - measured parallaxes and large proper motions from the Hipparcos catalog (8583 stars, mostly A-K ~ dwarfs) and fainter stars from other proper motion catalogues (79170 stars, mostly M ~ dwarfs).

Three new close - separation (< 1») companions (2MASS J06475229 - 2523304 B, PYC J11519 +0731 B, and GJ 4378 Ab) orbit stars previously reported as candidate YMG members, but instead are likely old (> 1 Gyr) tidally - locked spectroscopic binaries without convincing kinematic associations with any known moving group.

«Probably, this neutron star picked up its companion and was thrown out of its globular cluster by a close encounter with other stars at the cluster's core,» Mirabel said.

Our substellar companions appear both non-coeval with their primary stars according to evolutionary models and, as a group, are systematically more luminous than the Upper Sco cluster sequence.

In addition to variations in chemical composition — both because of the initial abundances and the star's evolutionary status, [34] interaction with a close companion, [35] rapid rotation, [36] or a magnetic field can also change a main sequence star's position slightly on the HR diagram, to name just a few factors.

«We clearly see that this star's orbit has changed dramatically after the encounter with its larger companions,» said Luis Rodriguez.

Two of these candidates are common proper motion companions to nearby main sequence stars; if confirmed as binaries, these would be rare benchmark systems with the potential to stringently test ultracool evolutionary models.

Diffraction - limited observations in H - band combined with angular differential imaging enabled us to reach primary star - companion brightness ratios as small as 10 - 6 at 1.5».

If you are new to this saga make sure you read Tau II Abstract: The successful detection is reported of radial - velocity variations due to orbital motion of the substellar companion of the star tau Boötis, from data obtained with a small aperture (0.4 - m) telescope and a fibre - fed high resolution spectrograph.

A third companion — Proxima Centauri (or Proxima or α Cen C)-- is much further away than the distance between stars A and B, but is still gravitationally associated with the AB system.

In the present work, we combine the results of our previously published VLT / NaCo large program with the results of 12 past imaging surveys to constitute a statistical sample of 199 FGK stars within 100 pc, including 3 stars with sub-stellar companions.

Abstract: The substellar companion HD206893b has recently been discovered by direct imaging of its disc - bearing host star with the SPHERE instrument.

The results of the direct imaging surveys searching for substellar companions around Sun - like stars are consistent with a combined substellar mass spectrum of planets and BDs.

During the orbital period of such a planet of 0.6 (3) a, an observer on the planet would see this intensely bright companion star circle the sky just as humans see with the Solar System's planets.