Geminga

(jĕ-ming -gă) An intense gamma-ray source in the constellation Gemini (hence the name), first discovered by the SAS-2 satellite. It is also an X-ray source, but more than 99% of its power output is observed in the γ-ray spectral range. Recent observations with the X-ray satellite ROSAT and the Compton Gamma Ray Observatory have revealed that Geminga is a gamma-ray pulsar with a period of 237 milliseconds; this periodicity has been confirmed by the analysis of archive data from COS-B and SAS-2. Geminga is possibly the result of a nearby supernova.

Geminga

[′jem·iŋ·gə] (astronomy) A relatively nearby neutron star, about 150 parsecs (450 light-years) distant, that emits pulsed x-rays and gamma rays (making it an x-ray and gamma-ray pulsar), steady optical radiation, and possible unconfirmed radio and optical pulsations. The term is derived from Gemini gamma-ray source.

单词	geminga
释义	Geminga Geminga (ɡɛˈmiːŋɡa; dʒəˈmiːŋɡə) n (Astronomy) astronomy one of the brightest and nearest gamma-ray sources, situated in the constellation Gemini. A pulsar, it is believed to be a spinning neutron star[C20: from Gemini + gamma ray] Geminga Geminga (jĕ-ming -gă) An intense gamma-ray source in the constellation Gemini (hence the name), first discovered by the SAS-2 satellite. It is also an X-ray source, but more than 99% of its power output is observed in the γ-ray spectral range. Recent observations with the X-ray satellite ROSAT and the Compton Gamma Ray Observatory have revealed that Geminga is a gamma-ray pulsar with a period of 237 milliseconds; this periodicity has been confirmed by the analysis of archive data from COS-B and SAS-2. Geminga is possibly the result of a nearby supernova. Geminga [′jem·iŋ·gə] (astronomy) A relatively nearby neutron star, about 150 parsecs (450 light-years) distant, that emits pulsed x-rays and gamma rays (making it an x-ray and gamma-ray pulsar), steady optical radiation, and possible unconfirmed radio and optical pulsations. The term is derived from Gemini gamma-ray source.
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