f Astronomy Tea Talk at Caltech

Astronomy Tea Talk at Caltech

Mondays, Virtual (link on request)

Welcome! The next tea talk is listed here. Please check the Talk Schedule page for all the talks lined-up for 2020-2021 session. Please note we would be switching between the 10 am and 4 pm time slots on Mondays to accommodate speakers from different time zones.
We are currently completely booked for the 2020-2021 academic year. If you are interested in giving a Tea Talk (especially graduate students and postdocs), please reach out to us via the form accessible under "contact us" and we will place you on a list of potential speakers for the next academic year.


New eclipsing millisecond pulsars in the Galactic globular cluster Terzan 5


Dr. Ryan Urquhart(Michigan State University)

May 24, 2021

Owing to its massive, dense core, Terzan 5 has the richest population of millisecond pulsars known among Galactic globular clusters. Using new deep VLA (2-8 GHz) radio continuum observations of Terzan 5, we have identified a selection of known millisecond pulsars (discovered via timing analysis), plus a handful of previously unknown steep-spectrum radio sources. We also investigate the X-ray properties of these new sources. The combined X-ray/radio analysis suggests the sources are binary millisecond pulsars belonging to the 'spider' classification. The likely discovery of bright binary millisecond pulsars in a well-studied cluster like Terzan\,5 highlights how deep radio continuum imaging can complement pulsar search and timing observations.

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