期刊
JOURNAL OF ASTRONOMY AND SPACE SCIENCES
卷 33, 期 3, 页码 167-172出版社
KOREAN SPACE SCIENCE SOC
DOI: 10.5140/JASS.2016.33.3.167
关键词
interstellar medium; pulsars; shock waves; neutron stars
资金
- National Science Foundation (NSF) [0968296]
- NSF [AST09-07790, AST14-12269]
- Discovery Communications, Inc.
- Boston University
- University of Maryland
- University of Toledo
- Northern Arizona University
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1412269] Funding Source: National Science Foundation
We used the 4 m Discovery Channel Telescope (DCT) at Lowell observatory in 2014 to observe the Guitar Nebula, an Ha bow-shock nebula around the high-velocity radio pulsar B2224+65. Since the nebula's discovery in 1992, the structure of the bow-shock has undergone significant dynamical changes. We have observed the limb structure, targeting the body and neck of the guitar. Comparing the DCT observations to 1995 observations with the Palomar 200-inch Hale telescope, we found changes in both spatial structure and surface brightness in the tip, head, and body of the nebula.
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