Paradoxes about Light Phenomena: Photo
... History occasionally merges two different worlds of thought at a point in time. Such a confluence of ideas took place at the beginning of the twentieth century when a philosophy and a scientific theory found a mutually compatible course. ...
... History occasionally merges two different worlds of thought at a point in time. Such a confluence of ideas took place at the beginning of the twentieth century when a philosophy and a scientific theory found a mutually compatible course. ...
GRB 130603B: No Compelling Evidence for Neutron Star Merger
... to a more compact object due to cooling, loss of angular momentum, or mass accretion. The X-ray afterglow that was measured with the Swift XRT and Newton XMM has the expected canonical behaviour of a synchrotron afterglow produced by a highly relativistic jet. Its late-time behaviour does not provid ...
... to a more compact object due to cooling, loss of angular momentum, or mass accretion. The X-ray afterglow that was measured with the Swift XRT and Newton XMM has the expected canonical behaviour of a synchrotron afterglow produced by a highly relativistic jet. Its late-time behaviour does not provid ...
Light Waves at the Boundary of Nonlinear Media
... k 2 E and the homogeneous transmitted wave(s) k2r, as well as the polarization vectors e? and êa and the magnitude of the reflected and transmitted amplitudes <§2B and &£ have to be determined from the boundary conditions. It turns out that the nonlinear polarization radiates in one particular direc ...
... k 2 E and the homogeneous transmitted wave(s) k2r, as well as the polarization vectors e? and êa and the magnitude of the reflected and transmitted amplitudes <§2B and &£ have to be determined from the boundary conditions. It turns out that the nonlinear polarization radiates in one particular direc ...
GAIA A Stereoscopic Census of our Galaxy - Cosmos
... – deep and uniform (G=20 mag) detection of all moving objects – ~250,000 objects observed, mainly main-belt asteroids – orbits: 30 times better than present, even after 100 years – spin-axis direction, rotation period, shape parameters for majority – taxonomy/mineralogical composition versus helioce ...
... – deep and uniform (G=20 mag) detection of all moving objects – ~250,000 objects observed, mainly main-belt asteroids – orbits: 30 times better than present, even after 100 years – spin-axis direction, rotation period, shape parameters for majority – taxonomy/mineralogical composition versus helioce ...
maximizing the detection probability of kilonovae associated with
... astronomy era. With the advanced interferometric detectors, GWs are expected to be observed from a number of additional source types, including the mergers of binary neutron stars (BNS), and neutron star-black hole (NSBH) systems. For these other sources the presence of matter from the neutron star ...
... astronomy era. With the advanced interferometric detectors, GWs are expected to be observed from a number of additional source types, including the mergers of binary neutron stars (BNS), and neutron star-black hole (NSBH) systems. For these other sources the presence of matter from the neutron star ...
WFIRSTSurveyScience
... WFIRST will enable a uniform wide-field survey with unprecedented sensitivity of the Kuiper Belt. Since there are estimated to be more than 4 x 104 KBOs with diameters greater than 100km (R ~ 24), WFIRST will increase the current number of known KBOs by at least an order of magnitude. WFIRST has the ...
... WFIRST will enable a uniform wide-field survey with unprecedented sensitivity of the Kuiper Belt. Since there are estimated to be more than 4 x 104 KBOs with diameters greater than 100km (R ~ 24), WFIRST will increase the current number of known KBOs by at least an order of magnitude. WFIRST has the ...
Two distinct sequences of blue straggler stars in the globular cluster
... Stars in globular clusters are generally believed to have all formed at the same time, early in the Galaxy's history1. 'Blue stragglers' are stars sufficiently massive2 that they should have evolved into white dwarfs long ago. Two possible mechanisms have been proposed for their formation: mass tran ...
... Stars in globular clusters are generally believed to have all formed at the same time, early in the Galaxy's history1. 'Blue stragglers' are stars sufficiently massive2 that they should have evolved into white dwarfs long ago. Two possible mechanisms have been proposed for their formation: mass tran ...
Ground-based variability surveys towards Centaurus A: worthwhile
... In this paper we present a pilot study of a ground-based variability study using difference imaging photometry towards the giant elliptical galaxy Centaurus A (Cen A, NGC 5128). Apart from the general interest of a variable star and microlensing study in an elliptical galaxy discussed above, this sur ...
... In this paper we present a pilot study of a ground-based variability study using difference imaging photometry towards the giant elliptical galaxy Centaurus A (Cen A, NGC 5128). Apart from the general interest of a variable star and microlensing study in an elliptical galaxy discussed above, this sur ...
Evolution of the Highest Redshift Quasars
... – How closely tied are the earliest SBHs and galaxies? Or are we just picking up early starters in term of BH accretion in the most luminous quasars? ...
... – How closely tied are the earliest SBHs and galaxies? Or are we just picking up early starters in term of BH accretion in the most luminous quasars? ...
Introduction to Modern Physics PHYX 2710
... relative to one another (Galileo’s principle of relativity), • The speed of light in a vacuum, c, is the same for all observers, regardless of their relative motion or of the motion of the source of the light. ...
... relative to one another (Galileo’s principle of relativity), • The speed of light in a vacuum, c, is the same for all observers, regardless of their relative motion or of the motion of the source of the light. ...
PS1-10jh: The Disruption of a Main-Sequence Star of Near
... fan intercepts a significant fraction of the light is incorrect. As noted by Kochanek (1994), the width of the stream of unbound material is still controlled by the stream’s self-gravity in the transverse direction, restricting its width to only be a fraction of the star’s original pericenter distan ...
... fan intercepts a significant fraction of the light is incorrect. As noted by Kochanek (1994), the width of the stream of unbound material is still controlled by the stream’s self-gravity in the transverse direction, restricting its width to only be a fraction of the star’s original pericenter distan ...
Lecture 12: Accretion
... Things become interesting when one star’s surface gets close to the Roche potential. That’s when a regular binary turns into an interacting binary. ...
... Things become interesting when one star’s surface gets close to the Roche potential. That’s when a regular binary turns into an interacting binary. ...
Measurement of very low (α,n) cross sections of astrophysical interest
... Helium filled proportional tubes are rather insensitive to gamma radiation, c) Large detection efficiencies (≥ 50%) can be achieved using a sufficient number of long 3 He tubes surrounding the source, and d) The detection efficiency can be made rather independent of neutron energy in the range of in ...
... Helium filled proportional tubes are rather insensitive to gamma radiation, c) Large detection efficiencies (≥ 50%) can be achieved using a sufficient number of long 3 He tubes surrounding the source, and d) The detection efficiency can be made rather independent of neutron energy in the range of in ...
Why bouncing droplets are a pretty good model
... The droplet’s speed was not varied during the experiments. One way to achieve this might be to adjust the forcing amplitude and frequency (correcting for the perturbation to the wave speed and height). Alternatively a droplet of ferrofluid might be de-weighted magnetically so it lands later in the c ...
... The droplet’s speed was not varied during the experiments. One way to achieve this might be to adjust the forcing amplitude and frequency (correcting for the perturbation to the wave speed and height). Alternatively a droplet of ferrofluid might be de-weighted magnetically so it lands later in the c ...
Pulsation spectrum of δ Scuti stars: the binary HD 50870 as seen
... the relevant frequency range of δ Scuti stars and therefore we grouped the original data into new bins with a time separation of 0.005 d to gain CPU time, thus obtaining 20 535 datapoints and a Nyquist frequency of 100 d−1 . An example of the resulting light curve is shown in Fig. 1. The spectral wi ...
... the relevant frequency range of δ Scuti stars and therefore we grouped the original data into new bins with a time separation of 0.005 d to gain CPU time, thus obtaining 20 535 datapoints and a Nyquist frequency of 100 d−1 . An example of the resulting light curve is shown in Fig. 1. The spectral wi ...