My Cart (0)

Message from Sky & Telescope

The AAS staff (including staff of Sky and Telescope) are working remotely from their homes to support the social distancing efforts to contain COVID 19. While we are all working to support the S&T community, there may be delays in responding during this time. If you have a question or concern, please contact Camillia Taylor at [email protected]. Click here for information on delays in international deliveries.

This is a difficult time for the entire United States. Aero, our fulfillment partner, is based in Ohio. Aero provides fulfillment services for P&G. While they will continue to fulfill our orders, there may be a delay in shipping our products because they must give priority to medical, personal healthcare, and cleaning and sanitization products.

Lab Exercises in Astronomy: Pulsars

By The Editors of Sky & Telescope

Format: Supplies

SKU# LE007

This astronomy lab teaches students about pulsars and how they interact with the gas and dust between stars. Students will make measurements of radio observations to determine the periods of three pulsars. Then they will calculate how the interstellar medium disperses the pulse arrival times at various frequencies.

The exercise is based on observations of three pulsars made at the National Radio Astronomy Observatory. Recordings are provided of radio power received from PSR 0809+74, 0950+08, and 329+54 on as many as four frequencies (234, 256, 405, and 1420 megahertz). The student makes precise measurements to determine the period at which pulses recur, studies a currently favored model of a pulsar, and determines the pulse dispersion or difference in pulse arrival times at the various frequencies. This leads to estimating each pulsar’s distance. Prepared by Kurtiss J. Gordon of Hampshire College.

Author The Editors of Sky & Telescope
Format Supplies

In Stock

Be the first to review this product