NuSTAR Probes Black Hole Jet Mystery

A paper with participation by many members of the NuSTAR X-ray binaries group (and SSL) entitled, “An elevation of 0.1 light-seconds for the optical jet base in an accreting Galactic black hole system” by Gandhi et al. was published in the journal Nature Astronomy this week.  The primary result was based on X-ray and optical observations of V404 Cyg, which is an accreting black hole transient that had an extremely bright outburst in 2015.  It was found that fluctuations in the optical light from the black hole were delayed by 0.1 seconds relative to the X-ray fluctuations, providing a measurement of the location of the optical emission zone in the jet.  The delay was only seen after a plasma jet was detected at radio wavelengths, demonstrating that the optical emission arises from the jet.  A news release is available at https://www.nustar.caltech.edu/news/nustar20171030

Lin Fellows Seminar

Announcing the Lin Fellows Seminar at the Space Sciences Laboratory

  • On Monday, October 9th at 2 pm
  • SSL Addition Conference Room
  • Speakers will include:
    • David Smith (UC Santa Cruz)
    • Chris Möckel (Lin Fellow pictured below),
    • Aashrita Mangu (Lin Fellow pictured below)
  • A reception will follow the seminar

The Robert P. Lin Graduate Fellowship was established in 2012 with a gift from Lily Lin.  It is used to support outstanding UC Berkeley graduate students who pursue research related to space sciences.