Fast as Potoroo: Radio continuum detection of a bow-shock pulsar wind nebula powered by pulsar J1638-4713

被引：2

作者：

Lazarevic, Sanja ^{[1
,2
,3
]}

Filipovic, Miroslav D. ^{[1
]}

Dai, Shi ^{[1
]}

Kothes, Roland ^{[4
]}

Ahmad, Adeel ^{[1
]}

Alsaberi, Rami Z. E. ^{[1
]}

Balzan, Joel C. F. ^{[1
]}

Barnes, Luke A. ^{[1
]}

Cotton, William D. ^{[5
,6
]}

Edwards, Philip G. ^{[2
]}

Gordon, Yjan A. ^{[7
]}

Haberl, Frank ^{[8
]}

Hopkins, Andrew M. ^{[9
]}

Koribalski, Barbel S. ^{[1
,2
]}

Leahy, Denis ^{[10
]}

Maitra, Chandreyee ^{[8
]}

Micic, Marko ^{[11
]}

Rowell, Gavin ^{[12
]}

Sasaki, Manami ^{[13
]}

Tothill, Nicholas F. H. ^{[1
]}

Umana, Grazia ^{[14
]}

Velovic, Velibor ^{[1
]}

机构：

[1] Western Sydney Univ, Locked Bag 1797, Penrith, NSW 2751, Australia

[2] CSIRO Space & Astron, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia

[3] Astron Observ, Volgina 7, Belgrade 11060, Serbia

[4] Natl Res Council Canada, Domin Radio Astrophys Observ, Herzberg Astron & Astrophys, Penticton, BC, Canada

[5] Natl Radio Astron Observ, Charlottesville, VA USA

[6] South African Radio Astron Observ, Black River Pk, Cape Town, South Africa

[7] Univ Wisconsin Madison, Dept Phys, Madison, WI USA

[8] Max Planck Inst Extraterr Phys, Garching, Germany

[9] Macquarie Univ, Sch Math & Phys Sci, N Ryde, NSW, Australia

[10] Univ Calgary, Dept Phys & Astron, Calgary, AB, Canada

[11] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL USA

[12] Univ Adelaide, Sch Phys Sci, Adelaide, Australia

[13] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Dr Karl Remeis Observ, Bamberg, Germany

[14] INAF Osservatorio Astrofis Catania, Catania, Italy

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 2024年 / 41卷

关键词：

ISM: individual (Potoroo); pulsars: individual (PSR J1638-4713); radiation mechanism: non-thermal radio continuum: ISM; stars: winds; outflows; X-rays: individual (CXOU J163802.6-471358); X-RAY; SUPERNOVA-REMNANTS; MAGNETIC-FIELD; MHD SIMULATIONS; FRYING PAN; POLARIZATION; CATALOG; MOUSE; MODEL; EVOLUTION;

D O I：

10.1017/pasa.2024.13

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of a bow-shock pulsar wind nebula (PWN), named Potoroo, and the detection of a young pulsar J1638-4713 that powers the nebula. We present a radio continuum study of the PWN based on 20-cm observations obtained from the Australian Square Kilometre Array Pathfinder (ASKAP) and MeerKAT. PSR J1638-4713 was identified using Parkes radio telescope observations at frequencies above 3 GHz. The pulsar has the second-highest dispersion measure of all known radio pulsars (1553 pc cm(-3)), a spin period of 65.74 ms and a spin-down luminosity of & Edot; = 6.1 x 10(36) erg s(-1). The PWN has a cometary morphology and one of the greatest projected lengths among all the observed pulsar radio tails, measuring over 21 pc for an assumed distance of 10 kpc. The remarkably long tail and atypically steep radio spectral index are attributed to the interplay of a supernova reverse shock and the PWN. The originating supernova remnant is not known so far. We estimated the pulsar kick velocity to be in the range of 1000 - 2000 km s (-1) for ages between 23 and 10 kyr. The X-ray counterpart found in Chandra data, CXOU J163802.6-471358, shows the same tail morphology as the radio source but is shorter by a factor of 10. The peak of the X-ray emission is offset from the peak of the radio total intensity (Stokes I) emission by approximately 4.7", but coincides well with circularly polarised (Stokes V) emission. No infrared counterpart was found.

引用

页数：15

共 37 条

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