OBSERVATIONS OF ROTATING RADIO TRANSIENTS WITH THE FIRST STATION OF THE LONG WAVELENGTH ARRAY

被引：5

作者：

Taylor, G. B. ^{[1
,4
]}

Stovall, K. ^{[1
]}

McCrackan, M. ^{[1
,5
]}

McLaughlin, M. A. ^{[2
]}

Miller, R. ^{[2
]}

Karako-Argaman, C. ^{[3
]}

Dowell, J. ^{[1
]}

Schinzel, F. K. ^{[1
,4
]}

机构：

[1] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[2] West Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA

[3] McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada

[4] Natl Radio Astron Observ, Socorro, NM 87801 USA

[5] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA

来源：

ASTROPHYSICAL JOURNAL | 2016年 / 831卷 / 02期

基金：

美国国家科学基金会;

关键词：

pulsars: general; radio continuum: stars; PULSAR SURVEY; GREEN BANK; DISCOVERY; SEARCHES;

D O I：

10.3847/0004-637X/831/2/140

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Rotating radio transients (RRATs) are a subclass of pulsars first identified in 2006 that are detected only in searches for single pulses and not through their time averaged emission. Here, we present the results of observations of 19 RRATs using the first station of the Long Wavelength Array (LWA1) at frequencies between 30 and 88 MHz. The RRATs observed here were first detected in higher frequency pulsar surveys. Of the 19 RRATs observed, two sources were detected and their dispersion measures, periods, pulse profiles, and flux densities are reported and compared to previous higher frequency measurements. We find a low detection rate (11%), which could be a combination of the lower sensitivity of LWA1 compared to higher frequency telescopes, and the result of scattering by the interstellar medium or a spectral turnover.

引用

页数：7

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