transcript.
... ANDREA GHEZ: Our view to the center of the galaxy is absolutely superb. And our ability to position stars at the center of the galaxy is like somebody in Los Angeles seeing somebody in New York be able to move their fingers, like this, okay? Just two centimeters. That's the precision with which we c ...
... ANDREA GHEZ: Our view to the center of the galaxy is absolutely superb. And our ability to position stars at the center of the galaxy is like somebody in Los Angeles seeing somebody in New York be able to move their fingers, like this, okay? Just two centimeters. That's the precision with which we c ...
An extended X-ray object ejected from the PSR B1259
... the same orbital cycle, the strongest variations are seen around periastron. In particular, the X-ray light curve shows two peaks corresponding to first and second passages of the pulsar through the disk (≈ 20−4 days before periastron and ≈ 10−50 days after periastron), while the hydrogen column den ...
... the same orbital cycle, the strongest variations are seen around periastron. In particular, the X-ray light curve shows two peaks corresponding to first and second passages of the pulsar through the disk (≈ 20−4 days before periastron and ≈ 10−50 days after periastron), while the hydrogen column den ...
Cosmology with objects from the Hamburg Quasar Surveys
... high-resolution spectra, e.g. with COS on HST, will allow to reconstruct the shape of the metagalactic radiation field, which governs the photoionization of metals in the IGM, from line strength ratios OII/OIII/OIV/OV, NeII/NeIII/NeIV/NeV etc. with high accuracy. For methods and first results cf. A ...
... high-resolution spectra, e.g. with COS on HST, will allow to reconstruct the shape of the metagalactic radiation field, which governs the photoionization of metals in the IGM, from line strength ratios OII/OIII/OIV/OV, NeII/NeIII/NeIV/NeV etc. with high accuracy. For methods and first results cf. A ...
Variable Blue Stragglers in M67
... study. I report here the progress and some results drawn from this project. ...
... study. I report here the progress and some results drawn from this project. ...
–1– 1. Stellar Evolution For Massive Stars 1.1. The Importance of
... array of low frequency radio detectors, is designed to carry out tomogrpahy of the redshifted HI out to z ∼ 30, when the 21 cm spin-flip HI transition is shifted to 50 MHz. This project faces a very large sky background which will make any detection very challenging. The fact that no star with Z < ∼ ...
... array of low frequency radio detectors, is designed to carry out tomogrpahy of the redshifted HI out to z ∼ 30, when the 21 cm spin-flip HI transition is shifted to 50 MHz. This project faces a very large sky background which will make any detection very challenging. The fact that no star with Z < ∼ ...
A SEARCH FOR JUPITER-MASS COMPANIONS TO NEAR
... We should be able to relate the F -test results to the correlated periodogram results since the two statistics are so closely related (see Eq. (A3)). The correlated periodogram evaluated at a period of 100 yr ranges from 5.2 for Cep (see Figure 3) to 7.4 for Boo A. None of the corresponding peri ...
... We should be able to relate the F -test results to the correlated periodogram results since the two statistics are so closely related (see Eq. (A3)). The correlated periodogram evaluated at a period of 100 yr ranges from 5.2 for Cep (see Figure 3) to 7.4 for Boo A. None of the corresponding peri ...
Introductory Physics
... Which of the following statements describes the flow of heat energy after the metal sample is added? A. Heat energy flows from the stirrer to the thermometer. B. Heat energy flows from the water to the metal sample. C. Heat energy flows from the metal sample to the water. D. Heat energy flows fr ...
... Which of the following statements describes the flow of heat energy after the metal sample is added? A. Heat energy flows from the stirrer to the thermometer. B. Heat energy flows from the water to the metal sample. C. Heat energy flows from the metal sample to the water. D. Heat energy flows fr ...
Measurements of Neutron Star Masses
... timing analysis (Fig. 9). The short-term variations observed in the DM values are most likely induced by other TOA changes that systemically on frequency; Example depend of measuring m1, these m2 could be profile evolution that varies with frequency, potentially amplified PSR J1906+0746, 4 hr orbit, ...
... timing analysis (Fig. 9). The short-term variations observed in the DM values are most likely induced by other TOA changes that systemically on frequency; Example depend of measuring m1, these m2 could be profile evolution that varies with frequency, potentially amplified PSR J1906+0746, 4 hr orbit, ...
WVU astrophysicist part of research team that proves Einstein
... The team of researchers discovered that one of the two pulsars is indeed precessing -- just as Einsteinís 1915 theory predicts. If Einstein had been wrong, the pulsar wouldnít be precessing or would precess in some other way. Pulsars are too small and too distant to observe their orientation dire ...
... The team of researchers discovered that one of the two pulsars is indeed precessing -- just as Einsteinís 1915 theory predicts. If Einstein had been wrong, the pulsar wouldnít be precessing or would precess in some other way. Pulsars are too small and too distant to observe their orientation dire ...
Gamma-Ray Bursts
... equal larger Depends on the duration of the GRB. Depends on the photon frequency at which most of the energy is radiated away. ...
... equal larger Depends on the duration of the GRB. Depends on the photon frequency at which most of the energy is radiated away. ...
The Kerr-Metric: describing Rotating Black Holes
... In 1795 Laplace proposed, using Newton’s theory of gravity, it was possible for very dense and massive objects to have an escape velocity larger than the speed of light. Not even light could escape from such an object: it would appear black. In 1915 Einstein published his famous theory of general re ...
... In 1795 Laplace proposed, using Newton’s theory of gravity, it was possible for very dense and massive objects to have an escape velocity larger than the speed of light. Not even light could escape from such an object: it would appear black. In 1915 Einstein published his famous theory of general re ...
