Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44

We present high-resolution VLA images taken at the wavelengths of 20, 6, and 3.6 cm in the vicinity of the pulsars PSR B1706-44 (PSR J1709-4428) and PSR B1643-43 (PSR J1646-4346). Both of these pulsars are young (< 30,000 yr) and have large spin-down luminosities (E > 1035 ergs s-1) an...

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Guardado en:
Detalles Bibliográficos
Publicado: 2001
Materias:
ISM: general
Pulsars: individual (PSR 1643-43, PSR 1706-44)
Supernova remnants
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046256_v121_n6_p3133_Giacani
http://hdl.handle.net/20.500.12110/paper_00046256_v121_n6_p3133_Giacani
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00046256_v121_n6_p3133_Giacani
record_format dspace
spelling paper:paper_00046256_v121_n6_p3133_Giacani2023-06-08T14:27:12Z Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44 ISM: general Pulsars: individual (PSR 1643-43, PSR 1706-44) Supernova remnants We present high-resolution VLA images taken at the wavelengths of 20, 6, and 3.6 cm in the vicinity of the pulsars PSR B1706-44 (PSR J1709-4428) and PSR B1643-43 (PSR J1646-4346). Both of these pulsars are young (< 30,000 yr) and have large spin-down luminosities (E > 1035 ergs s-1) and hence are good candidates to search for extended synchrotron nebulae excited by the relativistic pulsar wind. For PSR B1643-43 we found evidence of a 4′ comet-shaped nebula, suggestive of a synchrotron "wake" left by a fast-moving pulsar. PSR B1706-44 appears surrounded by a spherical nebula approximately 3′ in diameter. Based on their morphology, the detection of significant linear polarization (> 20%), and their flat radio spectra (α = 0.25-0.3, where Sν ∝ ν-α), we argue that these are wind nebulae powered by the rotational energy loss of the respective pulsars. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046256_v121_n6_p3133_Giacani http://hdl.handle.net/20.500.12110/paper_00046256_v121_n6_p3133_Giacani
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic ISM: general
Pulsars: individual (PSR 1643-43, PSR 1706-44)
Supernova remnants
spellingShingle ISM: general
Pulsars: individual (PSR 1643-43, PSR 1706-44)
Supernova remnants
Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44
topic_facet ISM: general
Pulsars: individual (PSR 1643-43, PSR 1706-44)
Supernova remnants
description We present high-resolution VLA images taken at the wavelengths of 20, 6, and 3.6 cm in the vicinity of the pulsars PSR B1706-44 (PSR J1709-4428) and PSR B1643-43 (PSR J1646-4346). Both of these pulsars are young (< 30,000 yr) and have large spin-down luminosities (E > 1035 ergs s-1) and hence are good candidates to search for extended synchrotron nebulae excited by the relativistic pulsar wind. For PSR B1643-43 we found evidence of a 4′ comet-shaped nebula, suggestive of a synchrotron "wake" left by a fast-moving pulsar. PSR B1706-44 appears surrounded by a spherical nebula approximately 3′ in diameter. Based on their morphology, the detection of significant linear polarization (> 20%), and their flat radio spectra (α = 0.25-0.3, where Sν ∝ ν-α), we argue that these are wind nebulae powered by the rotational energy loss of the respective pulsars.
title Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44
title_short Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44
title_full Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44
title_fullStr Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44
title_full_unstemmed Pulsar wind nebulae around the southern pulsars PSR B1643-43 and PSR B1706-44
title_sort pulsar wind nebulae around the southern pulsars psr b1643-43 and psr b1706-44
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046256_v121_n6_p3133_Giacani
http://hdl.handle.net/20.500.12110/paper_00046256_v121_n6_p3133_Giacani
_version_ 1768546470219218944

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