Sentences with phrase «in eclipsing binaries»

He is also interested in eclipsing binaries in Local Group galaxies that can serve as distance indicators.

Some are geometric variables, as in the eclipsing binaries considered earlier.

In an eclipsing binary, the two stars pass in front of each other in turn, creating eclipses and periodic dimming of their combined light.

UC Santa Barbara Astrophysicists are the first to identify two white dwarf stars in an eclipsing binary system, allowing for the first direct radius measurement of a rare white dwarf.

Astrophysicists at UC Santa Barbara are the first scientists to identify two white dwarf stars in an eclipsing binary system, allowing for the first direct radius measurement of a rare white dwarf composed of pure helium.

Not exact matches

In a paper accepted for publication in Astrophysical Journal, lead author David Fleming, a UW astronomy doctoral student, studies eclipsing binaries, or those where the orbital plane is so near the line of sight, both stars are seen to cross in front of each otheIn a paper accepted for publication in Astrophysical Journal, lead author David Fleming, a UW astronomy doctoral student, studies eclipsing binaries, or those where the orbital plane is so near the line of sight, both stars are seen to cross in front of each othein Astrophysical Journal, lead author David Fleming, a UW astronomy doctoral student, studies eclipsing binaries, or those where the orbital plane is so near the line of sight, both stars are seen to cross in front of each othein front of each other.

Next they ruled out a false positive, usually caused by an eclipsing binary - star system in the background, with two relatively small telescopes on the ground, which offer better spatial resolution than COROT does.

The two bodies are aligned to form an eclipsing binary, with the red star periodically passing in front of the blue, blocking it from our view.

An eclipse within the background binary would mimic a small brightness dip in Kepler - 20.

But other observations need to confirm the true planetary nature of these candidate events, because the observed dips may also be due to an eclipsing binary star in the background whose light blends with the foreground star studied by Kepler.

Results from these tests provide also in many cases insights into the nature of the sources of the false positives, which are generally produced by one of several kinds of configurations involving eclipsing binaries (EB).

Among the undiluted binaries, we note that Brown only mentions grazing binaries as a principal source of false positives; however, as can be seen in Table 2, eclipses among stellar components with large area or surface - brightness ratio (SB1 in Table 2) are the cause of a significant fraction of false positives.

In the original work by Brown, slightly different classes of false positives were used: MPU (main - sequence star with a giant planet); MSU (undiluted binaries); and the two types of diluted binaries, MSDF (an eclipsing binary + a third non-related star) and MSDT (triple systems).

Among the undiluted binaries, planet - like eclipses may be caused by grazing EBs and the (central) eclipses of two stellar components with large ratios in area or surface brightness, typically due to a large mass ratio.

A well - known eclipsing binary makes up part of Algol, a multiple - star system in the constellation Perseus.

In an eclipsing variable, one member of a double, or binary, star system partially blocks the light of its companion as it passes in front of the latter, as observed from EartIn an eclipsing variable, one member of a double, or binary, star system partially blocks the light of its companion as it passes in front of the latter, as observed from Eartin front of the latter, as observed from Earth.

In 1996, two teams of astronomers announced the possible detection of a planetary transit eclipse of the close binary pair CM Draconis Aab (Guinan et al, 1998; Martin and Deeg, 1996; and Guinan et al, 1996).

In 1967, the reddish component was found to be an eclipsing binary by Olin Jeuck Eggen and Allan Sandage.

In 1996, two teams of astronomers announced the possible detection of a planetary transit eclipse of the close binary pair CM Draconis Aab, which has yet to be confirmed (further details below).

In addition, we identify 16 targets as likely eclipsing binaries, based on their light curve morphology.

We measure eclipse timing variations (ETVs), which are then combined with the single - lined radial velocity measurements to yield masses in a manner equivalent to double - lined spectroscopic binaries.

This goal requires knowledge of the incidence of false positives such as eclipsing binaries in the background of the targets, or physically bound to them, which can mimic the photometric signal of a transiting planet.

Feb. 17, 2016 — Astronomers have discovered an unnamed pair of stars that sets a new record for both the longest duration stellar eclipse (3.5 years) and longest period between eclipses (69 years) in a binary system.

David Fleming, a doctoral student at the University of Washington, and colleagues study eclipsing binaries, or those where the orbital plane is so near the line of sight, both stars are seen to cross in front of each other.

In 1926, the fainter component itself was found to be an eclipsing binary by Jan Schilt by photographic observations, which had already been suspected from a spectrum that showed rotationally broadened absorption lines.

© Carla Maceroni (used with permission) Stars B and C form a W - Ursae - Majoris - type, shallow contact binary whose orbital motion results in eclipses every three hours (more discussion).

When combined they yield a transit depth of 344 \ pm 85 ppm that is consistent with the depth in the Kepler passband (376 \ pm 9 ppm, ignoring limb darkening), which rules out blends with an eclipsing binary of a significantly different color than the target.

The newly discovered system, known only by its astronomical catalogue number TYC 2505 -672-1, sets a new record for both the longest duration stellar eclipse and the longest period between eclipses in a binary system.

That is just what happens in a newly discovered system, known only by its astronomical catalogue number TYC 2505 -672-1, setting a new record for both the longest duration stellar eclipse and the longest period between eclipses in a binary star system.

This binary system was hard to spot because the bodies would eclipse each other — with only one signal visible — but when its existence was confirmed it marked a huge milestone in astrophysics.