探测到类似 Geminga 的伽马射线脉冲星 J1836+5925 的射电发射

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Astronomy Letters-A Journal of Astronomy and Space Astrophysics Pub Date : 2024-02-25 DOI:10.1134/S106377372310002X

V. M. Malofeev, O. I. Malov, D. A. Teplykh, M. A. Timirkeeva

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引用次数: 0

摘要

摘要报告探测到伽马射线脉冲星 J1836+5925 的射电辐射。普希金诺射电天文台的 LPA 射电望远镜记录到了该天体的罕见射电发射事件。脉冲星 J1836+5925 射电发射的一个特点是有两个或三个分量的综合轮廓和非常窄的单个脉冲。脉冲间也有可能存在。我们测量了色散度量，(DM=23\pm 1\) pc cm\({}^{-3}\) ，并估算了脉冲星的距离，1.5 kpc。还估算了通量密度和光谱指数的下限。

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Detection of Radio Emission from the Geminga-Like Gamma-Ray Pulsar J1836+5925

The detection of radio emission from the gamma-ray pulsar J1836+5925 is reported. Rare events of radio emission from this object have been recorded with the LPA radio telescope at the Pushchino Radio Astronomy Observatory. A two- or three-component integrated profile and very narrow individual pulses are a peculiarity of the radio emission from the pulsar J1836+5925. The presence of an interpulse is also possible. We have measured the dispersion measure, \(DM=23\pm 1\) pc cm\({}^{-3}\), and estimated the distance to the pulsar, 1.5 kpc. The flux density and the lower limit on the spectral index have been estimated.

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来源期刊

Astronomy Letters-A Journal of Astronomy and Space Astrophysics 地学天文-天文与天体物理

CiteScore

1.70

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Letters is an international peer reviewed journal that publishes the results of original research on all aspects of modern astronomy and astrophysics including high energy astrophysics, cosmology, space astronomy, theoretical astrophysics, radio astronomy, extragalactic astronomy, stellar astronomy, and investigation of the Solar system.