Fermi Gamma-ray Space Telescope

Does PSR J2022+3842 emit gamma-rays?

Haruka. Ohuchi
Makoto. Arimoto, Yoichi. Yatsu, Takeshi. Nakamori, Nobuyuki. Kawai

Abstract:

The Fermi Gamma-ray Space Telescope has observed more than 160 pulsars and about half of them are young pulsars (http://tinyurl.com/fermipulsars). About 1/3 of them are also known as radio pulsars.On the other hand, there some pulsars which have not been detected in the gamma-rays in spite of radio observations. It is important to investigate how many pulsars can be observed in radio and/or gamma-ray(Romani et al. 1995).?? PSR J2022+3842 was discovered in SNR G76.9+1.0 as an energetic rotation-powered young pulsar and has period of 48 ms (Arzoumanian et al. 2011, Arumugasamy et al. 2014). It is a Vela-like pulsar due to its spin down energy rate of 3.0 1037 erg/s and the characteristic age of 8.9 kyr. Though radio and X-ray pulse emission were observed, the pulsar has not been detected in gamma-rays due to its location on the galactic plane resulting in high background levels. In this contribution, we report on a search for pulsations from PSR J2022+3842 in 7 years of data from the Fermi Large Area Telescope.