Sentences with phrase «astronomers use»

Consider the orders of magnitude astronomers use when discussing the universe.

There's something astronomers use called the Drake equation, and that asks, «What is the probability that there is a planet out there that we could communicate with that has intelligent life?»

In this lesson, students consider the vastness of space and learn why astronomers use kilometres in standard form and light years to measure distances.

In images taken between 2000 and 2002, Pluto became significantly «redder,» a term astronomers use to indicate that an object reflects more red than blue light.

To catch more FRBs, astronomers use new technology, such as Parkes» multibeam receiver, the Murchison Widefield Array (MWA) in Western Australia, and the upgraded Molonglo Observatory Synthesis Telescope near Canberra.

Astronomers use telescopes sensitive to sub-millimetre wavelengths, like the JCMT, to measure the cloud brightness and reveal details about the growth of the star.

(This is the basis of the OBAFGKM sequence astronomers use to distinguish between types of stars.)

I took a survey course on astronomy in university, and I learned the rudiments of astrophysics, including spectral classifications and some of the basic tricks that astronomers use to estimate distances, such as parallax and Cepheid variables.

Infrared light, as well as X-rays and radio, more freely passes through this obscuring material, so astronomers use this to see the region more clearly.

Goldilocks zone A term that astronomers use for a region out from a star where conditions there might allow a planet to support life as we know it.

Astronomers use a device called a spectrograph to separate white light into its spectrum.

By parsing the cells with slices of laser light and then correcting for any obstruction with the same AO technique astronomers use to correct blurriness in observations of stars, the scientists have come up with a microscopy technique that looks like an artistic rendering.

Astronomers use the pulsar's age and spin to calculate how much energy it has injected into the nebula.

These young stars are Cepheid variables — «standard candles» that astronomers use to measure distances.

Normally, astronomers use spectroscopy to determine an object's distance.

Today, astronomers use much the same system, measuring brightness relative to a handful of standard reference stars.

Or how about how astronomers use heterodyne arrays with superconducting mixers to observe the birth of stars?

To find the distribution of the M dwarfs, Van Vledder and Van der Vlugt used three density models that astronomers use to describe the flat disc and halo, both separately and combined.

[4] This is one of the main methods that astronomers use to identify the presence of a planet around a star.

The supernova in question is SN 2017cbv, a thermonuclear Type Ia, which astronomers use to measure the acceleration of the expansion of the universe.

So astronomers use adaptive optics, in which deformable mirrors correct for atmospheric distortion, and instruments called coronagraphs to blot out the starlight.

In a gigantic galaxy survey, astronomers use subtle effects of one bizarre unknown substance to study another

Related sites Villanova team's AAS abstract Turner's AAS abstract on Polaris Basic information about Polaris How astronomers use Cepheid variables

The answer lies in the different detectors astronomers use for different purposes.

Astronomers use lasers to measure the distance from the Earth to the moon.

X-ray and gamma - ray astronomers use the Crab Nebula as a standard, says astrophysicist Colleen Wilson - Hodge of NASA's Marshall Space Flight Center in Huntsville, Alabama, so «we need to rethink how we calibrate our instruments.»

Since planets form from the same reservoir of gas and dust as their stars, astronomers use the chemical makeup of a star to see what material was available to the growing planets.

(Z is the term astronomers use to denote how the light of distant objects is stretched by the expansion of the universe.)

Asteroid Univofutah initially was numbered 391795 because it was the 391,795 th minor planet — the term that astronomers use for asteroids — to be discovered and receive a number.

So astronomers use Earth's atmosphere as their detector.

One of the tricks astronomers use to study dark matter — which, being invisible, can only be studied indirectly — is gravitational lensing.

Their paths shift slightly from one orbit to the next — a phenomenon known as precession — but when astronomers use general relativity to predict the amount of this shift, their answers are off by a factor of four.

Just as radio channels close to each other in frequency can bleed into one another, creating static, so too can radio interference from different technologies bleed into the channels astronomers use to observe.

That could come soon, if astronomers use NASA's Spitzer Space Telescope to learn once and for all whether Proxima b transits its star.

Beginning at left, astronomers use Hubble to measure the distances to a class of pulsating stars called Cepheid Variables, employing a basic tool of geometry called parallax.

After Jenkins and his colleagues have weeded out sunspots and other planet poseurs from the data, Marcy and other astronomers use the Doppler wobble method with terrestrial telescopes to verify that the remaining planet candidates, or «objects of interest,» are indeed planets.

Normally, a picture like this would show lots of stars as well as dust lit up by those stars, but astronomers used an image taken in visible light to subtract off the stars in the IR image, leaving just the dust behind.

After finding signs that Jupiter's icy moon emits repeating plumes of water near its southern pole, astronomers using the Hubble Space Telescope hope to detect more evidence of the geysers.

But in January, astronomers used optical and infrared telescopes to look back nearly to the beginning of the universe, just 1.5 billion years after the Big Bang, where they saw newborn ellipticals — ancient galaxies so dusty they're nearly invisible.

So one team of astronomers used data from the Gaia space observatory to simulate the interiors of solar - type stars, which are similar in mass and age to our own sun.

Astronomers using the VLA, along with the Australia Telescope Compact Array and the Giant Metrewave Radio Telescope in India, regularly observed the object from September onward.

Meanwhile, astronomers using another NASA satellite, the Compton Gamma Ray Observatory, believe they now know the source of powerful bursts of gamma rays coming from points distributed evenly across the sky.

Astronomers using the Atacama Large Millimeter / submillimeter Array (ALMA) have discovered a surprising connection between a supermassive black hole and the galaxy where it resides.

BLACK HOLE SNAPSHOT Astronomers using the Event Horizon Telescope over 10 days in April hope to grab the first image of a black hole.

STELLAR RICHES Astronomers using the Subaru Telescope in Hawaii (shown) found 12 new stars with too much lithium, one of which has the largest lithium abundance yet seen for its star type.

Astronomers used a radio telescope called the Atacama Large Millimeter / submillimeter Array (ALMA) to look for organic molecules in the Large Magellanic Cloud, located about 160,000 light - years from Earth.

Astronomers using NASA's Hubble Space Telescope have discovered that the universe is expanding 5 percent to 9 percent faster than expected.

To sharpen that vision, astronomers used the Very Long Baseline Array of 10 radio telescopes spread across North America.

«Ancient Greek astronomers used a lot of geometrical techniques, but the geometrical figures that they use are always situated in a real space, with either two - or three - spatial dimensions,» Ossendrijver explains.

Due to a single discovery announced last month, that future may play out over the next several years with astronomers using existing and under - construction telescopes on the ground and in space, rather than in fanciful far - future observatories.