| 单词 | photometric |
| 例句 | This could be done by measuring photometric redshifts, determined by the brightness observed through different filters, but this would only provide an estimate for the distance, Britt says. NASA just found a question mark in space. What exactly is it? 2023-08-09T04:00:00Z High levels of star formation are thought to have muddled early photometric analysis. JWST’s Newfound Galaxies Are the Oldest Ever Seen 2023-04-13T04:00:00Z By measuring the brightness of a star, a photometric time series known as the light curve is obtained. A glimpse inside δ Scuti stars 2020-05-12T04:00:00Z So Hildebrandt’s team turned to something called photometric redshift, which involves taking multiple images of the same patch of sky in different wavelengths, spanning the optical and near-infrared ranges. How Heavy is the Universe? Conflicting Answers Hint at New Physics 2020-05-12T04:00:00Z All spectra were scaled to contemporaneous photometric flux calibrations. A kilonova as the electromagnetic counterpart to a gravitational-wave source : Nature : Nature Research 2017-10-15T04:00:00Z The complete record of our photometric observations in August 2017 is presented in Extended Data Table 1. Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger : Nature : Nature Research 2017-10-15T04:00:00Z Thus, while the photometric results came thick and fast last summer, the spectroscopic results have only just begun trickling out. JWST’s Newfound Galaxies Are the Oldest Ever Seen 2023-04-13T04:00:00Z Each is fitted with a photometric calibration target, a small sundial that serves as a test pattern for their cameras. Bill Nye to Grads: Change the World 2015-05-18T04:00:00Z Infrared measurements capture a greater amount of the light from such galaxies, leading to better estimates of their photometric redshift. How Heavy is the Universe? Conflicting Answers Hint at New Physics 2020-05-12T04:00:00Z “Even if one of us is pretty sure that our photometric redshift is good, astronomers want to see a spectrum. But that is really hard to do, even with Keck.” Astronomers Measure Distance to Farthest Galaxy Yet 2015-05-05T04:00:00Z After this subtraction, the background around the transient position was much more uniform, enabling accurate photometric measurements. Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger : Nature : Nature Research 2017-10-15T04:00:00Z Already, though, with spectra-based distances in hand from only about a dozen candidates, researchers are finding that most measurements are matching the early photometric results. JWST’s Newfound Galaxies Are the Oldest Ever Seen 2023-04-13T04:00:00Z They used photometric stereo, a process that dates to the 1980s and involves taking a sequence of photographs from a fixed camera location while shining a light on the subject. Scientists Gain Insights Into Gauguin’s Artistic Process 2015-02-14T05:00:00Z “Their latest results use infrared data, which probably does a better job of tracing the mass of the lenses and getting reliable photometric redshifts,” he says. How Heavy is the Universe? Conflicting Answers Hint at New Physics 2020-05-12T04:00:00Z Those measurements, however, were estimates based on the colors of the objects — so-called photometric redshifts. Astronomers Measure Distance to Farthest Galaxy Yet 2015-05-05T04:00:00Z The pipeline searches for new data in the ESO Data archive and, if available, automatically downloads and processes them by performing the following main steps: pre-reduction, astrometric and photometric calibration and mosaic production. Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger : Nature : Nature Research 2017-10-15T04:00:00Z The Harvard photometric measures make it nearly one magnitude brighter than the zero magnitude, about two magnitudes brighter than Aldebaran, and about half the brightness of Sirius. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z They tell us something about the photometric properties of the moon – why are they darker? NASA Unveils New Detailed Photos of Apollo Moon Landing Sites 2011-09-06T19:45:00.227Z Furthermore, photometric measurements on the different portions of the beam as seen from a position near the searchlight show that the beam is actually brighter at its outer termination than near its origin. Visual Illusions Their Causes, Characteristics and Applications 2011-06-02T02:00:25.247Z This is particularly desirable, when, as in this case, the unaided eye enters into competition with photometric apparatus, by which, as some think, it should properly be altogether replaced. A Plan for Securing Observations of the Variable Stars 2011-03-20T02:00:35.713Z The fading of the moon’s light, due to its entrance into the penumbra, is scarcely noticeable without direct photometric determination until near the beginning of the total phase. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z For those of first magnitude and fainter I have only given those for which all the best observers in ancient and modern times agree, and which have been confirmed by modern photometric measures. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z To her and her staff were assigned the reductions and measurements of the photographic and photometric work done in Cambridge and Arequipa, Peru. Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind 2011-01-12T03:00:29.853Z The development of the method has been greatly assisted by photography, while the application of photometric measurements has been a powerful auxiliary in the work. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" Herschel was thus led to a long series of photometric experiments on the reflecting powers of the metals used in his mirrors, and on the amount of light transmitted by lenses. Sir William Herschel: His Life and Works According to recent photometric measurements it emits seventy times the quantity of light, and is three times more massive than the great luminary of our system. The Astronomy of Milton's 'Paradise Lost' According to the Harvard photometric measures its brightest star is Fl. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z A photometric zone, 20° wide, has for some time been in course of observation at Potsdam by MM. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Lest the graying of red should have disturbed its value, it is again tested on the photometric scale, and reads 4.7, showing it has been 69 slightly darkened by the graying process. A Color Notation A measured color system, based on the three qualities Hue, Value and Chroma But the photometric observations, in which the external resistance was abolished, and previous to which the light-keepers had become more skilled in the management of the direct current, showed the differences recorded in the table. Fragments of science, V. 1-2 As the photometric experiments are recent, let us suppose that it gives but 25 carcels. Scientific American Supplement, No. 1082, September 26, 1896 Modern photometric measures make it about 1·3 magnitude. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z There is no certainty as to the relative times of exposure needed to get images of stars representative of successive photometric ranks. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Herr Hefner-Alteneck has suggested a new standard light for photometric purposes, which promises to be very simple and effective in operation. Scientific American Supplement, No. 441, June 14, 1884. Its use for photometric purposes and in current regulators will be mentioned further on. Scientific American Supplement, No. 492, June 6, 1885 As it was of interest to ascertain what the increase of illuminating power was in a given lamp provided with the new chimney, Mr. Felix le Blanc undertook some photometric experiments. Scientific American Supplement, No. 458, October 11, 1884 There are drawing, photographic, and photometric chambers, physical, chemical, and metallurgical laboratories. Heroes of the Telegraph The observations for his photometric catalogues are, in fact, made with a "broken transit," in which the line of sight remains permanently horizontal, whatever the altitude of the star examined. A Popular History of Astronomy During the Nineteenth Century Fourth Edition So soon as the light has sufficiently acted, which may be seen by means of photometric bands equally transparent at the plate, all the bitumen not acted upon is dissolved. Scientific American Supplement, No. 286, June 25, 1881 The coincidence between the spectroscopic and the photometric evidence permits us to feel complete confidence in the theory of eclipses. Darwin and Modern Science |
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