Timothy Robishaw Quotes


You can think of this structure as a giant, magnetic Slinky wrapped around a long, finger-like interstellar cloud. The magnetic field lines are like stretched rubber bands; the tension squeezes the cloud into its filamentary shape. - Timothy Robishaw


What we see strongly suggests that the magnetic field is indeed helical. If it is so, then this tells us a lot about the role magnetic fields might play in molecular clouds and star formation. It would be a major piece of evidence in trying to solve this mystery of how stars form. - Timothy Robishaw


We wanted to make very high-resolution slices across the filament and see if the field really did reverse; if it did, then it's very likely that the field is somehow tied up in the filament. - Timothy Robishaw


We combined radio measurements we made of the Zeeman effect and optical measurements of magnetic fields from starlight. - Timothy Robishaw


This hydrogen gas emits radio waves with a wavelength of 21 centimeters, so they come in at about 1,420 megahertz on the radio dial. We were able to find that there is a magnetic field permeating this gas cloud and that its direction is pointing towards us above the cloud and then flips to pointing away from us on the bottom. - Timothy Robishaw


These results were incredibly exciting to me for a number of reasons. There's the scientific result of a helical field structure. Then, there's the successful measurement: This type of observation is very difficult, and it took dozens of hours on the telescope just to understand how this enormous dish responds to the polarized radio waves that are the signature of a magnetic field. - Timothy Robishaw


The telescope was designed to be very sensitive and have a very clean response to signals from the sky. - Timothy Robishaw


The process of star formation is obscured because it takes place in these dense molecular clouds, so it's not yet directly observable. Astrophysicists believe that magnetic fields play a strong role in regulating the star formation by affecting the shape of these molecular clouds. - Timothy Robishaw


It took hundreds of hours of telescope time before we were confident that we could do reliable science. - Timothy Robishaw


First, we spent hundreds of hours since January 2003 trying to characterize how the telescope responds to radio waves. - Timothy Robishaw


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