Letter to the Editor

Discovery of an X-ray nebula in the field of millisecond pulsar PSR J1911–1114

¹ Department of Space Science and Geology, Chungnam National University, Daejeon 34134, Korea
e-mail: skyljs1234@gmail.com
² Department of Astronomy and Space Science, Chungnam National University, Daejeon 34134, Korea
e-mail: cyhui@cnu.ac.kr, huichungyue@gmail.com
³ Institute of Particle Physics and Astronomy, Huazhong University of Science and Technology, PR China
⁴ Department of Physics, UNIST, Ulsan, 44919, Korea

Received: 3 July 2018
Accepted: 5 November 2018

Abstract

We have discovered an extended X-ray feature, apparently associated with millisecond pulsar (MSP) PSR J1911–1114. The feature, which extends for ∼1′, was discovered from an XMM-Newton observation; the radio timing position of PSR J1911–1114 is in the midpoint of the feature. The orientation of the feature is similar to the proper motion direction of PSR J1911–1114. Its X-ray spectrum can be well-modeled by an absorbed power law with a photon index of Γ = 1.8−^+0.3_0.2. If this feature is confirmed to be a pulsar wind nebula (PWN), this will be the third case where an X-ray PWN has been found to be powered by a MSP.