2026A&A...707A..10H

Query : 2026A&A...707A..10H

2026A&A...707A..10H - Astronomy and Astrophysics, volume 707A10 (2026/3-1)

The Northern High Time Resolution Universe pulsar survey II. Single-pulse search set-up and simulations.

HOUBEN L.J.M., FALCKE H., SPITLER L.G., BARR E.D., BEREZINA M., CHAMPION D.J., KARUPPUSAMY R. and KRAMER M.

Abstract (from CDS):

The High Time Resolution Universe (HTRU) survey is an all-sky survey looking for pulsars and other radio transients. We present a new single-pulse (SP) search pipeline tailored to the northern part of the HTRU survey collected with the 100 m Effelsberg Radio Telescope. In a selection of the data, synthetic SPs are injected with frequency-time structures resembling those of the detected fast radio burst population and processed by the pipeline to characterise its performance. Therefore, several new software toolkits have been developed (FRBfaker and RFIbye) to enable the injection of SPs with complex frequency-time structures and cope with the radio frequency interference (RFI) in the survey's data. We describe the operation of these toolkits alongside the overall functionality of the SP pipeline. Qualification of the pipeline confirmed that it is ready to process all the HTRU-North data. Additionally, we determine the survey's sensitivity to SPs, the impact of RFI thereon, the performance of the deep-learning classifier FETCH, and some insights that may be used to improve the pipeline's performance in the future. Within the small data sample analysed, we detected 21 known pulsars and a rotating radio transient. In addition, eight faint SP trains that might originate from yet undiscovered neutron stars and 141 isolated SP candidates were discovered.

Abstract Copyright: © The Authors 2026

Journal keyword(s): methods: data analysis - pulsars: general

VizieR on-line data: <Available at CDS (J/A+A/707/A10): tablee1.dat>

Status at CDS : Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 24

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Number of rows : 24
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR B0037+56 Psr 00 40 32.3899 +57 16 24.833           ~ 44 0
2 PSR B0052+51 Psr 00 55 45.3981 +51 17 24.601           ~ 52 0
3 PSR B0059+65 Psr 01 02 32.9914 +65 37 13.416           ~ 47 0
4 PSR B0105+65 Psr 01 08 22.5049 +66 08 34.499           ~ 81 0
5 PSR J0212+5222 Psr 02 12 52.136 +52 22 49.50           ~ 12 0
6 PSR J0248+6021 Psr 02 48 18.642 +60 21 34.70           ~ 63 1
7 FRB 20191221A rB 02 57 21.600 +79 43 12.00           ~ 34 0
8 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
9 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 278 0
10 PSR J0631+10 Psr 06 31 27.369 +10 37 05.63           ~ 152 0
11 PSR J1819-1458 Psr 18 19 34.173 -14 58 03.57           ~ 136 0
12 PSR B1821-19 Psr 18 24 00.43600 -19 45 44.5000           ~ 101 0
13 PSR B1834-10 Psr 18 36 53.92200 -10 08 09.3900           ~ 66 0
14 PSR J1844+00 Psr 18 44 11 +00 35.0           ~ 14 0
15 PSR J1852-0635 Psr 18 52 57.44800 -06 36 00.4500           ~ 41 0
16 PSR B1911-04 Psr 19 13 54.16240 -04 40 47.5600           ~ 192 0
17 PSR B1920+21 Psr 19 22 53.531 +21 10 41.97           ~ 98 0
18 PSR B1935+25 Psr 19 37 01.2544 +25 44 13.436           ~ 60 0
19 PSR J1939+2449 Psr 19 39 05.596 +24 42 55.60           ~ 20 0
20 PSR B2000+40 Psr 20 02 44.030 +40 50 53.91           ~ 53 0
21 PSR B2011+38 Psr 20 13 10.367 +38 45 43.31           ~ 78 0
22 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 288 1
23 PSR J2037+3621 Psr 20 37 27.44 +36 21 24.1           ~ 62 0
24 PSR B2148+63 Psr 21 49 58.7033 +63 29 44.277           ~ 96 0

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