Image Details
Caption: Fig. 1.
Dynamic Lomb‐Scargle power spectrum of SGR 1900+14 during the first half of 1999. Darker regions denote higher power. The dashed line marks the average ephemeris as determined from a grid search of this power spectrum in frequency and frequency‐derivative space (see Fig 2).
© 2002. The American Astronomical Society. All rights reserved. Printed in U.S.A.