NOAO >   Observing Info >   Approved Programs >   2017A-0411

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Program Information for 2017A-0411


PI: Timothy Dolch, Hillsdale College, tdolch@hillsdale.edu
Address: Physics Department, 33 E. College St., Hillsdale, MI 49242

CoI: James M Cordes, Cornell U.
CoI: Shami Chatterjee, Cornell U.
CoI: T Joseph W Lazio, CalTech-JPL
CoI: Schuyler Van Dyk, IPAC
CoI: Daniel Halmrast, Hillsdale College

Title: An KPNO H(alpha) Search for Radio Pulsar Bow-Shock Nebula

Abstract: We propose a search for new H-alpha bow-shock pulsar wind nebulae (PWN) around known radio pulsars. While PWN produce flux from radio to gamma rays, only nine H-alpha bow-shock nebulae are currently known. The H-alpha emission probes the density fluctuation spectrum of the surrounding neutral hydrogen immediately preceding ionization, which can in turn characterize the environments of radio pulsars. For example, the Guitar Nebula produced by pulsar B2224+65 has constrained the Galaxy’s turbulent fluctuation spectrum at the smallest spatial scales. We target ten radio pulsars that have not to date been imaged in H-alpha for bow-shock nebulae. The targets are a mix of young, canonical pulsars with strong pulsar winds, and old, millisecond pulsars (MSP). The MSPs are selected from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) pulsar timing array, for which any detected nebulae can help characterize lines-of-sight, and aid the effort for gravitational wave detection with pulsars.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2017A):  KP-4m/MOSA3 -- 2n on Jul 27 - Jul 28 2017


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NOAO >   Observing Info >   Approved Programs >   2017A-0411

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