J/A+A/708/A199 HTRU-North pulsar survey. III (Houben+, 2026)
The Northern High Time Resolution Universe pulsar survey. III.
Single-pulse search continuation, follow-up observations and initial results.
Houben L.J.M., Falcke H., Spitler L.G., Barr E.D., Berezina M.,
Champion D.J., Karuppusamy R., Kramer M.
<Astron. Astrophys. 708, A199 (2026)>
=2026A&A...708A.199H 2026A&A...708A.199H (SIMBAD/NED BibCode)
ADC_Keywords: Radio sources ; Pulsars
Keywords: methods: data analysis - methods: observational - pulsars: general -
galaxy: stellar content
Abstract:
We continued the search for single pulses (SPs) in the northern part
of the all-sky High Time Resolution Universe survey, whose aim is to
detect pulsars and other radio transients. This search is now about
21% complete and yielded the first discovery of a fast radio burst
(FRB) with the 100m Effelsberg Radio Telescope. FRB 20110220A is
detected with an S/N optimised dispersion measure of 501.0pc/cm3 and
width of 11.9±3.5ms giving it a fluence of 0.6±0.1Jy.ms. We
obtained the first the first L-band detection of the rotating radio
transient (RRAT) J2028+28, from which upper limits on the source's
period and burst rate are obtained, as well as an improved position.
The discovery of a new RRAT, J0404+53, is reported previously
identified as an isolated SP candidate by Houben et al.
(2026A&A.707A..10H, Cat. J/A+A/707/A10). Eight new SP trains and 272
faint isolated SP candidates were detected. The latter could be used
to show the presence of a Galactic latitude and longitude dependence
on the all-sky detection rates of the isolated SP candidates. This
direction dependence suggests the existence of a faint Galactic SP
population.
Description:
Detailed parameters of the isolated SP candidates identified by the
continued SP search of 5050 sky pointings of the HTRU-North pulsar
survey (2026A&A.707A..10H, Cat. J/A+A/707/A10). The given pulse
parameters are those returned by Heimdall (2012MNRAS.422..379B 2012MNRAS.422..379B). The
Galactic position of the centre of a candidate's detection beam is
taken as its location. This location expressed both in Galactic
longitude and latitude, as well as RA and DEC. As a reference, for
each candidate the DM contribution of the Galaxy is given as
determined with the NE2001 model (2002astro.ph..7156C 2002astro.ph..7156C) and a Note is
included if a know pulsar is within 0.25deg of the given candidate's
position and with a DM within ±25pc/cm3 of the candidate.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 77 272 List of detected isolated SP candidates
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See also:
J/A+A/707/A10 : Isolated single-pulse pulsar candidates (Houben+, 2026)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Name Given candidate name
6- 11 F6.2 deg GLON Galactic longitude
13- 18 F6.2 deg GLAT Galactic latitude
20- 25 F6.2 deg RAdeg Right ascension (J2000)
27- 32 F6.2 deg DEdeg Declination (J2000)
34- 37 F4.2 --- SNR Heimdall signal-to-noise of candidate
39- 44 F6.1 pc/cm3 DM Heimdall dispersion measure of candidate
46- 51 F6.1 pc/cm3 DMgal NE2001 dispersion measure of Galaxy for
the candidate's position
53- 56 F4.1 ms Width Heimdall width of the candidate
58- 59 I2 --- N Heimdall member count of candidate
61- 77 A17 --- Note Nearby known pulsar
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Acknowledgements:
Leon Houben, l.houben(at)astro.ru.nl
References:
Barr et al., Paper I 2013MNRAS.435.2234B 2013MNRAS.435.2234B
Houben et al., Paper II 2026A&A...707A..10H 2026A&A...707A..10H, Cat. J/A+A/707/A10
(End) Patricia Vannier [CDS] 03-Mar-2026