2021A&A...647A.183S


Query : 2021A&A...647A.183S

2021A&A...647A.183S - Astronomy and Astrophysics, volume 647A, 183-183 (2021/3-1)

A search for radio pulsars in five nearby supernova remnants.

SETT S., BRETON R.P., CLARK C.J., VAN KERKWIJK M.H. and KAPLAN D.L.

Abstract (from CDS):


Context. Most neutron stars are expected to be born in supernovae, but only about half of supernova remnants (SNRs) are associated with a compact object. In many cases, a supernova progenitor may have resulted in a black hole. However, there are several possible reasons why true pulsar-SNR associations may have been missed in previous surveys: The pulsar's radio beam may not be oriented towards us; the pulsar may be too faint to be detectable; or there may be an offset in the pulsar position caused by a kick.
Aims. Our goal is to find new pulsars in SNRs and explore their possible association with the remnant. The search and selection of the remnants presented in this paper was inspired by the non-detection of any X-ray bright compact objects in these remnants when previously studied.
Methods. Five SNRs were searched for radio pulsars with the Green Bank Telescope at 820 MHz with multiple pointings to cover the full spatial extent of the remnants. A periodicity search plus an acceleration search up to 500m/s2 and a single pulse search were performed for each pointing in order to detect potential isolated binary pulsars and single pulses, respectively.
Results. No new pulsars were detected in the survey. However, we were able to re-detect a known pulsar, PSR J2047+5029, near SNR G89.0+4.7. We were unable to detect the radio-quiet gamma-ray pulsar PSR J2021+4026, but we do find a flux density limit of 0.08mJy. Our flux density limits make our survey two to 16 times more sensitive than previous surveys, while also covering the whole spatial extent of the same remnants.
Conclusions. We discuss potential explanations for the non-detection of a pulsar in the studied SNRs and conclude that sensitivity is still the most likely factor responsible for the lack of pulsars in some remnants.

Abstract Copyright: © ESO 2021

Journal keyword(s): surveys - pulsars: general - supernovae: general - ISM: supernova remnants

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 PSR J0002+6216 Psr 00 02 58.17 +62 16 09.4           ~ 32 0
2 PSR J0106+4855 Psr 01 06 25.030 +48 55 52.01           ~ 43 0
3 SNR G130.7+03.1 SNR 02 05 37.0 +64 49 42           ~ 614 4
4 SNR G156.2+05.7 SNR 04 58 51.300 +51 50 28.00           ~ 130 1
5 M 1 SNR 05 34 30.9 +22 00 53           ~ 6154 1
6 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5230 0
7 RX J0822.0-4300 X 08 22 26.84204 -43 10 26.2350           ~ 45 1
8 NAME Pup A SNR 08 24 07 -42 59.8           ~ 593 1
9 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1221 2
10 PSR B1757-24 Psr 18 01 00.016 -24 51 27.50           ~ 243 1
11 NAME Duck Redux Rad 18 02 10.000 -24 54 00.00           ~ 179 3
12 SNR G029.7-00.2 SNR 18 46 27.2 -02 59 11           ~ 347 2
13 PSR J1907+06 Psr 19 07 54.751 +06 02 15.79           ~ 125 0
14 SNR G053.6-02.2 SNR 19 38.8 +17 14           ~ 146 0
15 PSR B2011+38 Psr 20 13 10.367 +38 45 43.31           ~ 69 0
16 NAME gam Cyg SNR SNR 20 20 17.100 +40 26 09.00           ~ 228 2
17 GRO J2019+40 gam 20 21.5 +40 26           ~ 129 1
18 PSR J2021+4026 Psr 20 21 30.496 +40 26 53.56           ~ 274 2
19 * gam Cyg V* 20 22 13.7018357 +40 15 24.044963 3.44 2.90 2.23 1.74 1.40 F8Ib 582 0
20 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 828 1
21 SNR G089.0+04.7 SNR 20 45.0 +50 35           ~ 223 0
22 PSR J2047+5029 Psr 20 47 54.640 +50 29 38.17           ~ 14 0
23 PSR B2223+65 Psr 22 25 52.8627 +65 35 36.371           ~ 322 0
24 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2767 1
25 CTB 1 SNR 23 59 13 +62 26.2           ~ 158 0

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