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相关论文: The second decametre pulsar census at UTR-2 radio …

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To date, only 69 pulsars have been identified with a detected pulsed radio emission below 100 MHz. A LOFAR-core LBA census and a dedicated campaign with the Nan\c{c}ay LOFAR station in stand-alone mode were carried out in the years…

高能天体物理现象 · 物理学 2020-03-18 L. Bondonneau , J. -M. Grießmeier , G. Theureau , A. V. Bilous , V. I. Kondratiev , M. Serylak , M. J. Keith , A. G. Lyne

A search for pulse signals was carried out in a new sky area included in the monitoring program for the search for pulsars and transients. Processing of several months data recorded in six frequency channels with a total bandwidth of 2.5…

高能天体物理现象 · 物理学 2022-07-20 V. A. Samodurov , S. A. Tyul'bashev , M. O. Toropov , S. V. Logvinenko

The behaviour of the pulsar spectrum at high radio frequencies can provide decisive information about the nature of the radio emission mechanism. We report recent observations of a selected sample of pulsars at lambda=9mm (32 GHz) with the…

天体物理学 · 物理学 2009-11-13 O. Loehmer , A. Jessner , M. Kramer , R. Wielebinksi , O. Maron

Pulsars with periods more than 0.4 seconds in the declination range -9o < decj < 42o and in the right ascension range 0h < r.a.< 24h were searched in parallel with the program of interplanetary scintillations monitoring of a large number of…

We have searched the northern sky for pulsars at the low radio frequency of 81.5 MHz, using the 3.6-hectare array at Cambridge, England. The survey covered most of the sky north of declination -20 deg and provided sensitivities of order 200…

天体物理学 · 物理学 2009-10-30 J. A. Shrauner , J. H. Taylor , G. Woan

Context. This paper presents a detailed description of the Decametre Pulsar and Transient Survey of the Northern Sky that was carried out in 2012-2017 using the world's largest radio telescope at decametre wavelengths - UTR-2 in Ukraine.…

We present first results from a LOFAR census of non-recycled pulsars. The census includes almost all such pulsars known (194 sources) at declinations ${\rm Dec}> 8^\circ$ and Galactic latitudes $|{\rm Gb}| > 3^\circ$, regardless of their…

We present a census of 100 pulsars, the largest below 100 MHz, including 94 normal pulsars and six millisecond pulsars, with the Long Wavelength Array (LWA). Pulse profiles are detected across a range of frequencies from 26 to 88 MHz,…

高能天体物理现象 · 物理学 2025-03-31 Pratik Kumar , Greg B. Taylor , Kevin Stovall , Jayce Dowell , Stephen M. White

We show the results of our analysis of the pulse broadening phenomenon in 25 pulsars at several frequencies using the data gathered with GMRT and Effelsberg radiotelescopes. Twenty two of these pulsars were not studied in that regard before…

高能天体物理现象 · 物理学 2015-06-16 Wojciech Lewandowski , Marta Dembska , Jaroslaw Kijak , Magdalena Kowalinska

We have used the 150 MHz radio continuum survey (TGSS ADR) from the Giant Metrewave Radio Telescope (GMRT) to search for phase-averaged emission toward all well-localized radio pulsars north of -53deg Declination. We detect emission toward…

高能天体物理现象 · 物理学 2016-10-05 D. A. Frail , P. Jagannathan , K. P. Mooley , H. T. Intema

Detecting and studying pulsars above a few GHz in the radio band is challenging due to the typical faintness of pulsar radio emission, their steep spectra, and the lack of observatories with sufficient sensitivity operating at high…

高能天体物理现象 · 物理学 2018-06-29 Pablo Torne

The search for pulsars in a sample of pulsar candidates found based on a multi-year survey conducted with low (6 channels; sampling 0.1s) time-frequency resolution on declinations -9^o < \delta < +42^o was carried out. A Large Phased Array…

高能天体物理现象 · 物理学 2022-10-26 S. A. Tyul'bashev , M. A. Kitaeva , G. E. Tyul'basheva

We present the results from the low-frequency (40--78 MHz) extension of the first LOFAR pulsar census of non-recycled pulsars. We have used the Low-Band Antennas of the LOFAR core stations to observe 87 pulsars out of 158 that have been…

The search of pulsars in monitoring observations being carried out for 5 years using LPA LPI radio telescope was done in 96 spatial beams covering daily 17,000 square degrees. Five new pulsars were detected. Candidates into pulsars were…

高能天体物理现象 · 物理学 2022-04-21 S. A. Tyul'bashev , M. A. Kitaeva , V. S. Tyul'bashev , V. M. Malofeev , G. E. Tyul'basheva

The survey of northern hemisphere were made at a frequency of 111 MHz. The total accumulation time at each point of the sky was at least one hour. 75 sources of pulse emission were detected. More then 80% of these sources are known pulsars…

高能天体物理现象 · 物理学 2022-04-12 S. A. Tyul'bashev , M. A. Kitaeva , S. V. Logvinenko , G. E. Tyul'basheva

Low-frequency pulsar observations are crucial for understanding pulsar emission spectra and population physics, as well as for probing the interstellar medium (ISM) and Earth's ionosphere. We report the largest low-frequency pulsar census…

高能天体物理现象 · 物理学 2026-04-01 Pratik Kumar , Marcin Sokolowski , Randall Wayth

A search was carried out for pulsars with periods (P) from 2 to 90 s in daily observations carried out over an interval of 5 years in a area measuring 6300 sq.deg. The data was obtained on a Large Phased Array (LPA) at a frequency of 111…

高能天体物理现象 · 物理学 2025-04-22 S. A. Tyul'bashev , G. E. Tyul'basheva

We present the results of Green Bank Telescope (GBT) observations of two pulsars discovered with the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) during the 19-beam Commensal Radio Astronomy FasT Survey (CRAFTS). We…

高能天体物理现象 · 物理学 2026-04-09 Victoria A. Blackmon , Maura A. McLaughlin , De Zhao , Jianping Yuan , Qingdong Wu , Chen-Chen Miao , Meng-Yao Xue , Di Li , Wei-Wei Zhu

On the Large Phased Array (LPA) of Lebedev Physics Institute (LPI), a search for pulsars outside the Galaxy plane was carried out in a 300 sq. deg area. The search with a sensitivity 5-10 times better than that of previously conducted…

高能天体物理现象 · 物理学 2023-05-03 S. A. Tyul'bashev , G. E. Tyul'basheva

We have used the Effelsberg 100-m radio telescope to conduct a 1400-MHz ($\lambda$ 21-cm) search for young and rapidly rotating radio pulsars along a 2 deg$^2$ strip of the northern Galactic plane defined by $28^{\circ} \leq l \leq…

天体物理学 · 物理学 2007-05-23 D. R. Lorimer , M. Kramer , P. Mueller , N. Wex , A. Jessner , C. Lange , R. Wielebinski
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