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In this paper we present results from flux density measurements for 21 pulsars over a wide frequency range, using the Giant Metrewave Radio Telescope (GMRT) and the Effelsberg telescope. Our sample was a set of mostly newly discovered…

高能天体物理现象 · 物理学 2014-10-31 M. Dembska , J. Kijak , A. Jessner , W. Lewandowski , B. Bhattacharyya , Y. Gupta

Flux density measurements provide fundamental observational parameters that describe a pulsar. In the current pulsar catalogue, 27% of radio pulsars have no flux density measurement in the 20 cm observing band. Here, we present the first…

We present periodicity and single-pulse searches at 1250 MHz for 22 radio-quiet gamma-ray pulsars, conducted using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). For PSR J1813$-$1246, we successfully detected pulsed…

高能天体物理现象 · 物理学 2025-06-13 S. Q. Wang , S. Dai , N. Wang , A. Zic , G. Hobbs , D. Li , R. B. Ding , L. Peng , Z. C. Pan , S. B. Zhang

We present the second and final set of TRAPUM searches for pulsars at 1284 MHz inside supernova remnants and pulsar wind nebulae with the MeerKAT telescope. No new pulsars were detected for any of the 80 targets, which include some…

The Parkes multibeam pulsar survey is a sensitive survey of a strip along the Galactic plane with |b|<5 deg and l=260 deg to l=50 deg. It uses a 13-beam receiver on the 64-m Parkes radio telescope, receiving two polarisations per beam over…

The pulsar search was started at the radio telescope LPA LPI at the frequency 111~MHz. The first results deals of a search for right ascension $0^h - 24^h$ and declinations $+21^{\circ} - +42^{\circ}$ are presented in paper. The data with…

高能天体物理现象 · 物理学 2022-08-19 S. A. Tyul'bashev , V. S. Tyul'bashev , V. V. Oreshko , S. V. Logvinenko

Since 2013 round-the-clock monitoring of the sky is carried out simultaneously in 96 space beams using the high-sensitivity radio telescope of LPA (Large Phased Array) at the frequency 110.25 MHz. These observations are made under the…

高能天体物理现象 · 物理学 2018-08-15 V. M. Malofeev , S. A. Tyul'bashev

A search for pulsed radiation at a frequency of 111 MHz in the direction of 116 RRAT candidates was carried out. For the search, archival data obtained on a meridian 128-beam radio telescope, a Large Phased Array (LPA), was used. For each…

高能天体物理现象 · 物理学 2024-01-11 S. A. Tyul'bashev , M. A. Kitaeva , E. A. Brylyakova , V. S. Tyul'bashev , G. E. Tyul'basheva

We report the discovery of 19 new pulsars identified from archival observations of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) within Galactic latitudes $|b|<5\deg$ and declinations ${\rm Decl.}<-5\deg$. The dataset was…

高能天体物理现象 · 物理学 2026-01-06 Shi-Jie Gao , Yi-Xuan Shao , Xiang-Dong Li

Flux densities are basic observation parameters to describe pulsars. In the most updated pulsar catalog, 24% of the listed radio pulsars have no flux density measurement at any frequency. Here, we report the first flux density measurements,…

高能天体物理现象 · 物理学 2022-07-27 Z. R. Zhou , J. B. Wang , N. Wang , G. Hobbs , S. Q. Wang

We report the results of a blind pulsar survey carried out with the Giant Metrewave Radio Telescope (GMRT) at 325 MHz. The survey covered about 10\% of the region between Galactic longitude 45$^{\circ} < l <$ 135$^{\circ}$ and Galactic…

The discovery of pulsars in 1968 heralded an era where the temporal characteristics of detectors had to be reassessed. Up to this point detector integration times would normally be measured in minutes rather seconds and definitely not on…

天体物理学 · 物理学 2015-05-13 Andy Shearer

We present initial results from the low-latitude Galactic plane region of the High Time Resolution Universe pulsar survey conducted at the Parkes 64-m radio telescope. We discuss the computational challenges arising from the processing of…

The launch of the Fermi Gamma-ray Space Telescope has heralded a new era in the study of gamma-ray pulsars. The population of confirmed gamma-ray pulsars has gone from 6-7 to more than 60, and the superb sensitivity of the Large Area…

高能天体物理现象 · 物理学 2015-05-19 Paul S. Ray , Pablo M. Saz Parkinson

Observations of millisecond pulsars (MSPs) at low radio frequencies play an important role in understanding the Galactic pulsar population and characterising both their emission properties and the effects of the ionised interstellar medium…

We report the results of (a) extensive follow-up observations of the gamma-ray pulsar J1732-3131 that has been recently detected at decameter wavelengths, and (b) deep searches for counterparts of 9 other radio-quiet gamma-ray pulsars at 34…

高能天体物理现象 · 物理学 2015-06-22 Yogesh Maan , H. A. Aswathappa

Searches for millisecond pulsars (which we here loosely define as those with periods $<$ 20 ms) in the Galactic field have undergone a renaissance in the past five years. New or recently refurbished radio telescopes utilizing cooled…

星系天体物理 · 物理学 2015-06-16 K. Stovall , D. R. Lorimer , R. S Lynch

A survey of the Galactic plane in the region $-60\degree \leq l \leq 30\degree$, $|b| \leq 0.25\degree$ was carried out using the seven-beam Parkes Methanol Multibeam (MMB) receiver, which operates at a frequency of 6.5 GHz. Three pulsars…

The Parkes 20 cm Multibeam pulsar surveys have discovered nearly half of the known pulsars and revealed many distant pulsars with high dispersion measures. Using a sample of 1,301 pulsars from these surveys, we have explored the spatial…

高能天体物理现象 · 物理学 2024-02-23 J. T. Xie , J. B. Wang , N. Wang , R. Manchester , G. Hobbs

We present five recycled pulsars discovered during a 21-cm survey of approximately 4,150 deg^2 between 15 deg and 30 deg from the galactic plane using the Parkes radio telescope. One new pulsar, PSR J1528-3146, has a 61 ms spin period and a…

天体物理学 · 物理学 2008-11-26 B. A. Jacoby , M. Bailes , S. M. Ord , H. S. Knight , A. W. Hotan