93 citations · 538 across the 25 of their papers we have counts for
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Magnetic Field Limits on SGRs
R. E. Rothschild, D. Marsden, R. E. Lingenfelter
We measure the period and spin-down rate for SGR 1900+14 during the quiescient period two years before the recent interval of renewed burst activity. We find that the spin-down rat…
Is SGR 1900+14 a Magnetar?
D. Marsden, R. E. Rothschild, R. E. Lingenfelter
We present RXTE observations of the soft gamma--ray repeater SGR 1900+14 taken September 4-18, 1996, nearly 2 years before the 1998 active period of the source. The pulsar period (…
Discovery of a Third Harmonic Cyclotron Resonance Scattering Feature in the X-ray Spectrum of 4U 0115+63
W. A. Heindl, W. Coburn, D. E. Gruber +5
We have discovered a third harmonic cyclotron resonance scattering feature (CRSF) in observations of the recent outburst of 4U 0115+63 with the Rossi X-ray Timing Explorer (RXTE).…