Pulsed radio emission from the Fermi-LAT pulsar J1732-3131: search and a possible detection at 34.5 MHz

被引：12

作者：

Maan, Yogesh ^{[1
,2
]}

Aswathappa, H. A. ^{[1
]}

Deshpande, Avinash A. ^{[1
]}

机构：

[1] Raman Res Inst, Bangalore 560080, Karnataka, India

[2] Indian Inst Sci, Joint Astron Programme, Bangalore 560012, Karnataka, India

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 425卷 / 01期

关键词：

stars: neutron; pulsars: general; pulsars: individual: J1732-3131; ISM: general; gamma-rays: stars; radio continuum: general; GAMMA-RAY PULSARS; BLIND FREQUENCY SEARCHES; GIANT PULSES; CRAB PULSAR; TELESCOPE;

D O I：

10.1111/j.1365-2966.2012.20608.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report our search for and a possible detection of periodic radio pulses at 34.5 MHz from the Fermi Large Area Telescope pulsar J1732-3131. The candidate detection has been possible in only one of the many sessions of observations made with the low-frequency array at Gauribidanur, India, when the otherwise radio weak pulsar may have apparently brightened many folds. The candidate dispersion measure along the sight line, based on the broad periodic profiles from similar to 20?min of data, is estimated to be 15.44 +/- 0.32 pc?cc-1. We present the details of our periodic and single-pulse search, and discuss the results and their implications relevant to both, the pulsar and the intervening medium.

引用

页码：2 / 7

页数：6

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