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With the Expanded Long Wavelength Array (ELWA) and pulsar binning techniques,we searched for off-pulse emission from PSR B0950+08 at 76 MHz. Previousstudies suggest that off-pulse emission can be due to pulsar wind nebulae(PWNe) in younger pulsars. Other studies, such as that done by Basu et al.(2012), propose that in older pulsars this emission extends to some radius thatis on the order of the light cylinder radius, and is magnetospheric in origin.Through imaging analysis we conclude that this older pulsar with a spin-downage of 17 Myr has a surrounding PWN, which is unexpected since as a pulsar agesits PWN spectrum is thought to shift from being synchrotron toinverse-Compton-scattering dominated. At 76 MHz, the average flux density ofthe off-pulse emission is 0.59 $\pm$ 0.16 Jy. The off-pulse emission fromB0950+08 is $\sim$ 110 $\pm$ 17 arcseconds (0.14 $\pm$ 0.02 pc) in size,extending well-beyond the light cylinder diameter and ruling out amagnetospheric origin. Using data from our observation and the surveys VLSSr,TGSS, NVSS, FIRST, and VLASS, we have found that the spectral index forB0950+08 is about -1.36 $\pm$ 0.20, while the PWN's spectral index is steeperthan -1.85 $\pm$ 0.45.

Discovery of a Pulsar Wind Nebula around B0950+08 with the ELWA