Sentences with phrase «of galactic dust»

The BICEP2 instrument can not distinguish the cosmic contribution from other sources directly, so, measurements of galactic dust collected by other sources, such as the Planck satellites were used.

Not exact matches

Our black hole's violent meeting with G2 began last year, and as it continues, it should give astronomers a chance to peer inside the galactic center — the neighborhood around the black hole — rather than just simulate the swirling disc of gas and dust surrounding it.

In addition, everything behind the galactic centre is shrouded by a dense wall of stars and dust, blanking out a whole area of the Milky Way map.

For tens of millions of years, most have been far from the galactic disc where dust and gas resides, so heavy elements such as calcium should have sunk beyond detection long before.

Moving out from this central galactic bulge, the panorama sweeps from the galaxy's central bulge across lanes of stars and dust to the sparser outer disk.

Data from the BICEP2 telescope (shown) may have provided the first evidence of gravitational waves and cosmic inflation, but scientists aren't sure how galactic dust affects the signal.

But teasing out this primordial signal is difficult, as swirls in the CMB could also be caused by galactic dust, and confidence had started to wane by the official publication of the BICEP2 results in June.

Now details of a new analysis of their results have leaked, and they seem to reveal that galactic dust is the likely cause of their observations.

The angular power spectrum of polarized dust emission at intermediate and high galactic latitudes.

It also suggests that dust in extended galactic haloes may be obscuring our view of the farthest objects in the Universe.

Since astronomers don't know much about how strongly galactic dust polarizes light, researchers involved in the Background Imaging of Cosmic Extragalactic Polarization, or BICEP, experiment relied on whatever information they could get their hands on.

He is a specialist on active galactic nuclei, superbright galactic cores thought to be caused by giant black holes sucking in and heating up quantities of gas and dust.

Using for the first time the newest Planck maps available, Puget and his collaborators have directly examined the polarization of dust in these high galactic regions rather than extrapolating from dustier regions in the plane of the Milky Way.

Previous Planck analyses did not show the amount of dust polarization in that patch of sky or other high - galactic - latitude regions of the Milky Way because of the relative sparseness of dust and low signal compared to noise in these regions (see «Milky Way map skirts question of gravitational waves»).

Dust grains in the Galaxy could imprint a similar polarization pattern in the CMB as gravitational waves can, but based on several different predictions of the galactic contribution the researchers concluded that their data was more likely to originate from primordial gravitational waves.

Averaging over some 350 high - galactic - latitude patches of sky similar in size to the region observed by BICEP2, Puget reported that polarization from interstellar dust grains plays a significant role and might account for much of the BICEP2 signal that had been attributed to inflation - generated gravitational waves.

A popular theory known as the «unified theory» suggests that differences in the brightness of active galactic nuclei, as seen from here on Earth, are due to the placement of this donut of obscuring dust relative to our angle of observation.

The bright center band in the above image represents heated interstellar dust as seen along the galactic plane of the Milky Way.

Many active galactic nuclei are surrounded by large, dark, donut - shaped clouds of gas and dust, as seen in this artist's rendering.

Some galaxies drive galactic winds, expelling dust and gas at hundreds of kilometers per second into the intergalactic medium, the space between galaxies.

This fuzzy warmth from the galactic center has puzzled scientists for 30 years and clearer observation of it has led Ghez and her collaborators to conclude that it is most likely superheated interstellar dust on the verge of falling into the black hole in the paper presenting their findings in the current issue of Astrophysical Journal Letters.

As a result, many specific structural features of the spiral arms are not well known, especially when compared with other spirals observed outside the Milky Way such as Andromeda (which is located a few million ly above the galactic plane of obscuring dust in the Milky Way's disk.

Because of all the intervening dust and gas lying in the galaxy it is very hard to see much beyond this distance in the galactic plane.

The new Hubble observations reveal that the dark tendrils of dust encircling the galactic core have a width of about 200 light - years, and a density roughly 10 times greater than the surrounding gas.

The dust clouds of the Galaxy are narrowly limited to the plane of the Milky Way, though very low - density dust can be detected even near the galactic poles.

Giant dust clouds block most of the starlight coming from the galactic center.

We have clearly detected FIR dust emission extended in the halo of the galaxy; there are two filamentary emission structures extending from the galactic disk up to 9 kpc in the northern and 6 kpc in the northwestern direct... ▽ More We present new far - infrared (FIR) images of the edge - on starburst galaxy NGC253 obtained with the Far - Infrared Surveyor (FIS) onboard AKARI at wavelengths of 90 um and 140 um.

Detection of the spiral's dust in a bi-symmetric structure provides strong evidence of its position deep inside the giant elliptical host while the vast amounts of radio, visual, and x-ray emissions are a result of the energy released by this continuing galactic merger (or «consumption» of a satellite galaxy).

SDSS studies have probed the dark matter environments of quasars through clustering measurements, revealed populations of quasars whose central engines are hidden by obscuring dust, captured changes in quasar spectra that show clouds moving in the gravitational grip of the central black hole, and allowed a comprehensive census of the much fainter accreting black holes (active galactic nuclei, or AGN) in present - day galaxies.

We are treated to thundering galactic fight sequences, accompanied by Wagnerian music, and some eerie scenes in which characters appear to turn to dust in front of our eyes.

In DUST 514, a massively multiplayer free - to - play first - person shooter exclusive to PlayStation 3, you can build an empire, wage war on a galactic scale and change the notorious sci - fi universe of EVE Online forever.

The Sun, Jupiter, gravitational moment of the remaining planets, Earth angular orbit variations of all kinds, galactic rays, motion of the solar system through the galaxy and dust clouds, the Moon, atmospheric water vapor, ocean currents, configuration of the tectonic plates and continental drift, volcanic activity, the natural biosphere, human urban development, human alteration of the greenhouse water cycle (dam's, rivers etc),,... human produced CO2.