Sentences with phrase «fraction of a light year»

Although quasars can be very bright, they are rare and are comparatively small, only a fraction of a light year across, whereas galaxies are quite common and provide a 100 million-fold increase in area to probe DLAs.

Not exact matches

There are great IT systems that have been written over the past five years that are light - years ahead of what we had, and we can lease that for a fraction of what we spent.

As detailed by Evan Keane of the international Square Kilometer Array Organization and colleagues, this separate study suggested some fraction of FRBs occur billions rather than millions of light - years away.

But Portegies Zwart, in a new paper (being reviewed for publication in Astrophysical Journal Letters), offers up what may be a credible way to find 50 or 60 of our own sun's original siblings, that small fraction of the estimated 1,000 to 6,000 original cluster members Portegies Zwart thinks is located within some 300 light - years of Earth.

Two supermassive black holes orbiting just a fraction of a light - year apart should emit such waves and then give off a burst of them when the black holes merge.

One method that has been discussed for years but has yet to bear fruit is known as transit timing — if a planet passes in front of its host star so that it blocks out a small but detectable fraction of the star's light, researchers can time the arrival of that partial eclipse, known as a planetary transit.

The best - observed dust clouds near the Sun have masses of several hundred solar masses and sizes ranging from a maximum of about 200 light - years to a fraction of a light - year.

Previously discussed in a November 24, 2011 pre-print, the astronomers «surveyed a carefully chosen sample of 102 red dwarf stars in the southern skies over a six - year period» and found a «total of nine super-Earths (planets with masses between one and ten times that of Earth),» of which two orbiting within the habitable zones of Gliese 581 and Gliese 667 C. By combining all the radial - velocity data of red dwarf stars (including those without undetected planets) and examining the fraction of confirmed planets that was found, the astronomers were able to estimate the probable distribution of different types of planets around red dwarfs: for example, only 12 percent of such stars within 30 light - years may have giant planets with masses between 100 and 1,000 times that of the Earth (ESO news release; Bonfils et al, 2011; and Delfosse et al, 2011).

Not only did the five - door missile manage to trump the AWD, V -8-powered Audi B7 RS4 on its way to snatch the title, it also outpaced its lighter and shorter hot - hatch stablemate by a few fractions of a second, despite the three - door setting a new FWD record last year.

Fraction of the records available in each year that have normalized values > 0 (red line), > 1 (light red shading), > 2 (dark red shading), < 0 (blue line), < — 1 (light blue shading), and < — 2 (dark blue shading), with the latter three series multiplied by — 1 before plotting.