英语词汇“standard candle”造句子简单的方法、技巧、例句及翻译-英语例句辞典

For this reason it can be used as a standard candle to measure the expansion rate of the universe. A Short History of Nearly Everything 2003-05-06T00:00:00Z

They could be used as "standard candles"–a term she coined and still in universal use. A Short History of Nearly Everything 2003-05-06T00:00:00Z

Perhaps a quasar standard candle will be found, and the distances to the quasars determined independent of their red shifts. Cosmos 1980-01-01T00:00:00Z

Shapley had found a stellar standard candle, a star noticeable because of its variability, but which had always the same average intrinsic brightness. Cosmos 1980-01-01T00:00:00Z

To test the distance of the spiral nebulae, a class of intrinsically much brighter variable stars was needed to furnish a new standard candle. Cosmos 1980-01-01T00:00:00Z

They are standard candles, objects of known brightness, and became a key tool for Hubble. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z

If you know how much light the headlight puts out—if the headlight is a standard candle—you can tell how bright the headlight will appear at any given distance. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z

The peak brightness of a Type Ia supernova is so strong and steady that astronomers use them as ‘standard candles’ to calculate distances in the universe and the rate at which our Universe expands! Tune in to the Supernova Radio! 2023-06-08T04:00:00Z

Pegging the distance to a Cepheid via parallax allows astronomers to calibrate the relationship between its brightness and variability, making it a workhorse “standard candle” for estimating greater cosmic distances. Astronomers Gear Up to Grapple with the High-Tension Cosmos 2022-04-18T04:00:00Z

Most of them rely on “standard candles,” astronomical objects of known brightness. The James Webb Space Telescope Could Solve One of Cosmology’s Deepest Mysteries 2022-01-25T05:00:00Z

They also raise questions about the explosions’ long-standing role as “standard candles” for probing cosmic history. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z

This time the standard candles were both Cepheids and type Ia supernovae, and the latter included some of the most distant supernovae ever observed. How a Dispute over a Single Number Became a Cosmological Crisis 2020-02-18T05:00:00Z

Crucially, cepheids are “standard candles”: Their light waxes and wanes at a rate that corresponds to their inherent brightness. The Milky Way is more warped than astronomers thought 2019-08-01T04:00:00Z

These stars have a well-known luminosity and can be used as standard candles to measure galactic distances—an independent rung on the cosmic ladder, if you will. Astronomers Gear Up to Grapple with the High-Tension Cosmos 2022-04-18T04:00:00Z

Wendy Freedman, an astronomer at the University of Chicago, uses a certain class of red giant stars as her preferred standard candle. The James Webb Space Telescope Could Solve One of Cosmology’s Deepest Mysteries 2022-01-25T05:00:00Z

But he thinks cosmologists will run into trouble as they put their theories to more rigorous tests that require more precise standard candles. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z

The method that Freedman’s team used “is a promising standard candle for measuring extragalactic distances,” the authors began, diplomatically, before eviscerating the systematic errors they believed affected the team’s results. How a Dispute over a Single Number Became a Cosmological Crisis 2020-02-18T05:00:00Z

To relate brightness to luminosity, the data must be calibrated against brightness measurements from standard candles, astrophysical objects with known luminosities. Hubble Tension Headache: Clashing Measurements Make the Universe's Expansion a Lingering Mystery 2019-07-29T04:00:00Z

Freedman’s team sought to develop a new type of standard candle. Debate intensifies over speed of expanding universe 2019-07-19T04:00:00Z

These stars exhibit a correlation between their periodic pulsations and their luminosities, making them excellent “standard candles” for gauging intergalactic distances. Best-Yet Measurements Deepen Cosmological Crisis 2019-03-22T04:00:00Z

If type Ia supernovae originate as paired white dwarfs, their brightness might not be as consistent as was thought—and they might be less reliable as standard candles. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z

A cosmic “distance ladder” stretching farther and farther across the universe is only as sturdy as its rungs—the standard candles. How a Dispute over a Single Number Became a Cosmological Crisis 2020-02-18T05:00:00Z

In addition to providing an independent check, Freedman’s method may also sidestep some vexing problems associated with other common standard candles. Hubble Tension Headache: Clashing Measurements Make the Universe's Expansion a Lingering Mystery 2019-07-29T04:00:00Z

As standard candles, quasars aren’t ideal because their masses vary widely. Have Dark Forces Been Messing With the Cosmos? 2019-02-25T05:00:00Z

Subsequent rungs rely on other, more luminous, standard candles. Best-Yet Measurements Deepen Cosmological Crisis 2019-03-22T04:00:00Z

The explosions also serve as “standard candles,” assumed to shine with a predictable brightness. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z

One method uses objects of known brightness, called standard candles, such as Cepheid variable stars. The Universe's Fate Rests on the Hubble Constant--Which Has So Far Eluded Astronomers 2019-01-30T05:00:00Z

For this reason they are commonly referred to as standard candles. Caught in the Act--Astronomers Get Their Best Look Yet at a Supernova Blowing Up 2018-12-17T05:00:00Z

These exploding stars flash with near-identical luminosity throughout the cosmos, making them ideal “standard candles” to gauge distances to other galaxies. Cosmic Conflict: Diverging Data on Universe's Expansion Polarizes Scientists 2018-05-16T04:00:00Z

So through observing the pulsations of these so-called standard candles, scientists can work out their original luminosity and, therefore, how far away they and their native galaxies are. The answer to life, the universe and everything might be 73. Or 67 2018-05-10T04:00:00Z

By contrast, some wonder whether standard candles might not be as reliable as astronomers think. How gravitational waves might help fundamental cosmology 2018-04-10T04:00:00Z

Not unlike standard candles, binary black hole systems oscillate. The Universe's Fate Rests on the Hubble Constant--Which Has So Far Eluded Astronomers 2019-01-30T05:00:00Z

How do these supernovae maintain such “standard candle” luminosities when they actually follow different paths? Caught in the Act--Astronomers Get Their Best Look Yet at a Supernova Blowing Up 2018-12-17T05:00:00Z

The exploding stars known as type Ia supernovae are so consistently bright that astronomers refer to them as standard candles — beacons that are used to measure vast cosmological distances. Supernova’s messy birth casts doubt on reliability of astronomical yardstick 2017-08-16T04:00:00Z

Each rung in the ladder has to be calibrated by "standard candles": objects that shift, pulse, flash, or rotate in a way that reliably encodes how far away they are. A recharged debate over the speed of the expansion of the universe could lead to new physics 2017-03-08T05:00:00Z

This type of cosmological probe is called a standard candle. Dark energy: Staring into darkness : Nature : Nature Research 2016-09-27T04:00:00Z

But to use supernovae as signposts, astronomers must compare them with other types of standard candle in our Galaxy. Milky Way mapper: 6 ways the Gaia spacecraft will change astronomy 2016-09-08T04:00:00Z

For their latest paper, Riess's team studied two types of standard candles in 18 galaxies using hundreds of hours of observing time on the Hubble Space Telescope. Measurement of Universe's expansion rate creates cosmological puzzle 2016-04-10T04:00:00Z

Still, the fact that each ‘standard candle’ looks slightly different from the next is cause for concern. Supernova’s messy birth casts doubt on reliability of astronomical yardstick 2017-08-16T04:00:00Z

Even farther out, he assumed that entire galaxies were standard candles, with uniform luminosities. A recharged debate over the speed of the expansion of the universe could lead to new physics 2017-03-08T05:00:00Z

Astronomers use some supernovae as signposts of cosmic distances, or ‘standard candles’, meaning that their measured brightness is an indicator of their distance. Siren call 2016-03-22T04:00:00Z

The extremely bright Type 1a supernovae are widely regarded as astrophysical “standard candles” for measuring the universe’s expansion. Physicists Claim Universe 'Rings' Like Crystal Glass 2015-06-29T04:00:00Z

The Hubble constant is calculated by observing how rapidly galaxies in the relatively nearby Universe move away from the Milky Way, using stars of known intrinsic brightness called 'standard candles'. Measurement of Universe's expansion rate creates cosmological puzzle 2016-04-10T04:00:00Z

A new study finds evidence that the supernovae can arise by two different processes, adding to lingering suspicions that standard candles aren't so standard after all. Supernova’s messy birth casts doubt on reliability of astronomical yardstick 2017-08-16T04:00:00Z

The maps provided not a standard candle, but a standard yardstick: a pattern of hotter and colder spots in the primordial soup created by sound waves rippling through the newborn universe. A recharged debate over the speed of the expansion of the universe could lead to new physics 2017-03-08T05:00:00Z

These cosmic yardsticks, which astronomers call 'standard candles’, were crucial in the discovery of dark energy, the mysterious force that is accelerating the expansion of the Universe. Supernova Erupts in Nearby Galaxy 2014-01-23T05:00:00Z

Knowing the brightness of supernovae is vital because these objects are considered 'standard candles' with which to infer cosmic distances. Cosmology: Out of the darkness 2012-10-10T21:51:18.137Z

Observers already study the effects of dark energy by tracking cosmic landmarks: the standard candles of distant supernovae and the standard rulers of ripples in the distribution of galaxies. Cameras to focus on dark energy 2012-09-12T17:21:18.513Z

Light from such explosions falls within a very narrow range, which is why astronomers call them "standard candles." Ancient Star Explosion is Most Distant of Its Kind 2012-01-12T20:15:00.293Z

These supernovae are all thought to reach roughly the same peak brightness, allowing them to be used as 'standard candles' to determine the distances to their host galaxies. Cosmology: Survey tunes in to dark energy 2012-01-04T18:20:08.267Z

The illuminating power developed is stated to be equal to 5 standard candles per cubic foot of gas consumed. Gas Burners Old and New 2011-11-07T02:00:20.003Z

“This is in spite of the fact that they are incredibly useful as standard candles in understanding the expansion of the universe, and trying to understand the nature of dark energy.” Modeling Ripples in Spacetime 2011-04-12T15:29:03Z

Radiation from the supernova remnant is believed to be so constant that astronomers use it as a standard candle with which to measure the energetic radiation of other astronomical sources. Crab Nebula Outbursts Shock Astronomers 2010-12-08T19:35:00Z

A standard candle when burning vitiates the air in a room almost as much as an adult person. Artificial Light Its Influence upon Civilization

On the top of the mountain, at an elevation of ten thousand feet, he found that the moon's rays affected his thermopile to the same extent as a standard candle ten feet away. Scientific American Supplement, No. 443, June 28, 1884

With a consumption rate of 5·3 cubic feet of gas per hour, the amount of light yielded horizontally was equal to 29·79 times that of a standard candle. Gas Burners Old and New 2011-11-07T02:00:20.003Z

The scale may be calibrated by means of standard candles, and the deflections of the index will then give absolute readings showing the candle power of the light being tested. Scientific American Supplement, No. 492, June 6, 1885

Hence, putting x to represent the illuminating power of the acetylene in standard candles, we have: 1.377 / 5 = 77 / x hence x = 280. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power

A candle-hour is the total amount of light emitted by a standard candle in one hour, and candle-hours in any case are obtained by multiplying the candle-power of the source by the hours of burning. Artificial Light Its Influence upon Civilization

A standard candle may be considered to emit an amount of light approximately equal to 10 lumens. Artificial Light Its Influence upon Civilization

单词	standard candle
例句	standard candle For this reason it can be used as a standard candle to measure the expansion rate of the universe. A Short History of Nearly Everything 2003-05-06T00:00:00Z They could be used as "standard candles"–a term she coined and still in universal use. A Short History of Nearly Everything 2003-05-06T00:00:00Z Perhaps a quasar standard candle will be found, and the distances to the quasars determined independent of their red shifts. Cosmos 1980-01-01T00:00:00Z Shapley had found a stellar standard candle, a star noticeable because of its variability, but which had always the same average intrinsic brightness. Cosmos 1980-01-01T00:00:00Z To test the distance of the spiral nebulae, a class of intrinsically much brighter variable stars was needed to furnish a new standard candle. Cosmos 1980-01-01T00:00:00Z They are standard candles, objects of known brightness, and became a key tool for Hubble. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z If you know how much light the headlight puts out—if the headlight is a standard candle—you can tell how bright the headlight will appear at any given distance. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z The peak brightness of a Type Ia supernova is so strong and steady that astronomers use them as ‘standard candles’ to calculate distances in the universe and the rate at which our Universe expands! Tune in to the Supernova Radio! 2023-06-08T04:00:00Z Pegging the distance to a Cepheid via parallax allows astronomers to calibrate the relationship between its brightness and variability, making it a workhorse “standard candle” for estimating greater cosmic distances. Astronomers Gear Up to Grapple with the High-Tension Cosmos 2022-04-18T04:00:00Z Most of them rely on “standard candles,” astronomical objects of known brightness. The James Webb Space Telescope Could Solve One of Cosmology’s Deepest Mysteries 2022-01-25T05:00:00Z They also raise questions about the explosions’ long-standing role as “standard candles” for probing cosmic history. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z This time the standard candles were both Cepheids and type Ia supernovae, and the latter included some of the most distant supernovae ever observed. How a Dispute over a Single Number Became a Cosmological Crisis 2020-02-18T05:00:00Z Crucially, cepheids are “standard candles”: Their light waxes and wanes at a rate that corresponds to their inherent brightness. The Milky Way is more warped than astronomers thought 2019-08-01T04:00:00Z These stars have a well-known luminosity and can be used as standard candles to measure galactic distances—an independent rung on the cosmic ladder, if you will. Astronomers Gear Up to Grapple with the High-Tension Cosmos 2022-04-18T04:00:00Z Wendy Freedman, an astronomer at the University of Chicago, uses a certain class of red giant stars as her preferred standard candle. The James Webb Space Telescope Could Solve One of Cosmology’s Deepest Mysteries 2022-01-25T05:00:00Z But he thinks cosmologists will run into trouble as they put their theories to more rigorous tests that require more precise standard candles. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z The method that Freedman’s team used “is a promising standard candle for measuring extragalactic distances,” the authors began, diplomatically, before eviscerating the systematic errors they believed affected the team’s results. How a Dispute over a Single Number Became a Cosmological Crisis 2020-02-18T05:00:00Z To relate brightness to luminosity, the data must be calibrated against brightness measurements from standard candles, astrophysical objects with known luminosities. Hubble Tension Headache: Clashing Measurements Make the Universe's Expansion a Lingering Mystery 2019-07-29T04:00:00Z Freedman’s team sought to develop a new type of standard candle. Debate intensifies over speed of expanding universe 2019-07-19T04:00:00Z These stars exhibit a correlation between their periodic pulsations and their luminosities, making them excellent “standard candles” for gauging intergalactic distances. Best-Yet Measurements Deepen Cosmological Crisis 2019-03-22T04:00:00Z If type Ia supernovae originate as paired white dwarfs, their brightness might not be as consistent as was thought—and they might be less reliable as standard candles. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z A cosmic “distance ladder” stretching farther and farther across the universe is only as sturdy as its rungs—the standard candles. How a Dispute over a Single Number Became a Cosmological Crisis 2020-02-18T05:00:00Z In addition to providing an independent check, Freedman’s method may also sidestep some vexing problems associated with other common standard candles. Hubble Tension Headache: Clashing Measurements Make the Universe's Expansion a Lingering Mystery 2019-07-29T04:00:00Z As standard candles, quasars aren’t ideal because their masses vary widely. Have Dark Forces Been Messing With the Cosmos? 2019-02-25T05:00:00Z Subsequent rungs rely on other, more luminous, standard candles. Best-Yet Measurements Deepen Cosmological Crisis 2019-03-22T04:00:00Z The explosions also serve as “standard candles,” assumed to shine with a predictable brightness. The galaxy’s brightest explosions go nuclear with an unexpected trigger: pairs of dead stars 2020-06-04T04:00:00Z One method uses objects of known brightness, called standard candles, such as Cepheid variable stars. The Universe's Fate Rests on the Hubble Constant--Which Has So Far Eluded Astronomers 2019-01-30T05:00:00Z For this reason they are commonly referred to as standard candles. Caught in the Act--Astronomers Get Their Best Look Yet at a Supernova Blowing Up 2018-12-17T05:00:00Z These exploding stars flash with near-identical luminosity throughout the cosmos, making them ideal “standard candles” to gauge distances to other galaxies. Cosmic Conflict: Diverging Data on Universe's Expansion Polarizes Scientists 2018-05-16T04:00:00Z So through observing the pulsations of these so-called standard candles, scientists can work out their original luminosity and, therefore, how far away they and their native galaxies are. The answer to life, the universe and everything might be 73. Or 67 2018-05-10T04:00:00Z By contrast, some wonder whether standard candles might not be as reliable as astronomers think. How gravitational waves might help fundamental cosmology 2018-04-10T04:00:00Z Not unlike standard candles, binary black hole systems oscillate. The Universe's Fate Rests on the Hubble Constant--Which Has So Far Eluded Astronomers 2019-01-30T05:00:00Z How do these supernovae maintain such “standard candle” luminosities when they actually follow different paths? Caught in the Act--Astronomers Get Their Best Look Yet at a Supernova Blowing Up 2018-12-17T05:00:00Z The exploding stars known as type Ia supernovae are so consistently bright that astronomers refer to them as standard candles — beacons that are used to measure vast cosmological distances. Supernova’s messy birth casts doubt on reliability of astronomical yardstick 2017-08-16T04:00:00Z Each rung in the ladder has to be calibrated by "standard candles": objects that shift, pulse, flash, or rotate in a way that reliably encodes how far away they are. A recharged debate over the speed of the expansion of the universe could lead to new physics 2017-03-08T05:00:00Z This type of cosmological probe is called a standard candle. Dark energy: Staring into darkness : Nature : Nature Research 2016-09-27T04:00:00Z But to use supernovae as signposts, astronomers must compare them with other types of standard candle in our Galaxy. Milky Way mapper: 6 ways the Gaia spacecraft will change astronomy 2016-09-08T04:00:00Z For their latest paper, Riess's team studied two types of standard candles in 18 galaxies using hundreds of hours of observing time on the Hubble Space Telescope. Measurement of Universe's expansion rate creates cosmological puzzle 2016-04-10T04:00:00Z Still, the fact that each ‘standard candle’ looks slightly different from the next is cause for concern. Supernova’s messy birth casts doubt on reliability of astronomical yardstick 2017-08-16T04:00:00Z Even farther out, he assumed that entire galaxies were standard candles, with uniform luminosities. A recharged debate over the speed of the expansion of the universe could lead to new physics 2017-03-08T05:00:00Z Astronomers use some supernovae as signposts of cosmic distances, or ‘standard candles’, meaning that their measured brightness is an indicator of their distance. Siren call 2016-03-22T04:00:00Z The extremely bright Type 1a supernovae are widely regarded as astrophysical “standard candles” for measuring the universe’s expansion. Physicists Claim Universe 'Rings' Like Crystal Glass 2015-06-29T04:00:00Z The Hubble constant is calculated by observing how rapidly galaxies in the relatively nearby Universe move away from the Milky Way, using stars of known intrinsic brightness called 'standard candles'. Measurement of Universe's expansion rate creates cosmological puzzle 2016-04-10T04:00:00Z A new study finds evidence that the supernovae can arise by two different processes, adding to lingering suspicions that standard candles aren't so standard after all. Supernova’s messy birth casts doubt on reliability of astronomical yardstick 2017-08-16T04:00:00Z The maps provided not a standard candle, but a standard yardstick: a pattern of hotter and colder spots in the primordial soup created by sound waves rippling through the newborn universe. A recharged debate over the speed of the expansion of the universe could lead to new physics 2017-03-08T05:00:00Z These cosmic yardsticks, which astronomers call 'standard candles’, were crucial in the discovery of dark energy, the mysterious force that is accelerating the expansion of the Universe. Supernova Erupts in Nearby Galaxy 2014-01-23T05:00:00Z Knowing the brightness of supernovae is vital because these objects are considered 'standard candles' with which to infer cosmic distances. Cosmology: Out of the darkness 2012-10-10T21:51:18.137Z Observers already study the effects of dark energy by tracking cosmic landmarks: the standard candles of distant supernovae and the standard rulers of ripples in the distribution of galaxies. Cameras to focus on dark energy 2012-09-12T17:21:18.513Z Light from such explosions falls within a very narrow range, which is why astronomers call them "standard candles." Ancient Star Explosion is Most Distant of Its Kind 2012-01-12T20:15:00.293Z These supernovae are all thought to reach roughly the same peak brightness, allowing them to be used as 'standard candles' to determine the distances to their host galaxies. Cosmology: Survey tunes in to dark energy 2012-01-04T18:20:08.267Z The illuminating power developed is stated to be equal to 5 standard candles per cubic foot of gas consumed. Gas Burners Old and New 2011-11-07T02:00:20.003Z “This is in spite of the fact that they are incredibly useful as standard candles in understanding the expansion of the universe, and trying to understand the nature of dark energy.” Modeling Ripples in Spacetime 2011-04-12T15:29:03Z Radiation from the supernova remnant is believed to be so constant that astronomers use it as a standard candle with which to measure the energetic radiation of other astronomical sources. Crab Nebula Outbursts Shock Astronomers 2010-12-08T19:35:00Z A standard candle when burning vitiates the air in a room almost as much as an adult person. Artificial Light Its Influence upon Civilization On the top of the mountain, at an elevation of ten thousand feet, he found that the moon's rays affected his thermopile to the same extent as a standard candle ten feet away. Scientific American Supplement, No. 443, June 28, 1884 With a consumption rate of 5·3 cubic feet of gas per hour, the amount of light yielded horizontally was equal to 29·79 times that of a standard candle. Gas Burners Old and New 2011-11-07T02:00:20.003Z The scale may be calibrated by means of standard candles, and the deflections of the index will then give absolute readings showing the candle power of the light being tested. Scientific American Supplement, No. 492, June 6, 1885 Hence, putting x to represent the illuminating power of the acetylene in standard candles, we have: 1.377 / 5 = 77 / x hence x = 280. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A candle-hour is the total amount of light emitted by a standard candle in one hour, and candle-hours in any case are obtained by multiplying the candle-power of the source by the hours of burning. Artificial Light Its Influence upon Civilization A standard candle may be considered to emit an amount of light approximately equal to 10 lumens. Artificial Light Its Influence upon Civilization
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