The FITS header tells how many bits/pixel are used, and whether they are stored as signed or unsigned integer or floating-point (an IEEE standard is...
Based on learning to hunt these down in introductory classes, so I can address them by showing students when they're harboring contradictory ideas:
...
It may not matter much - if there is an accretion disk which would have to be much denser than the surrounding material), it would be so much smaller...
because the ratio of photons to baryons going into recombination was much higher than it is in, for example, photoionization equilibrium as we see in...
One limited situation which has been discussed which would give rise to a very thick but temporary atmosphere goes by the name of quasi-stars. These...
At this level of detail, it would matter to first order only at millimeter and radio wavelengths, where the phase of the wavefront is sensed (in the...
Your motion would impose a dipole on the temperature of the microwave background ,hotter in front and colder behind. In fact, the Milky Way's motion...
A high-quality X-ray spectrum can measure the column density of foreground material (subject to some assumptions about the relative numbers of atoms...
Home Page
Find latest posts