title: Ð Ð¿ÑÐ¸ÑÐ¾Ð´Ðµ ÑÐµÐ¿Ð¾ÑÐºÐ¸ ÑÑ-ÐºÐ¸Ñ ÑÐ·ÐµÐ»ÐºÐ¾Ð² Ð½Ð° ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¾Ð¹ ÐºÐ°ÑÑÐµ Ð¿ÑÐ»ÑÑÐ°ÑÐ½Ð¾Ð¹ ÑÑÐ¼Ð°Ð½Ð½Ð¾ÑÑÐ¸ ÐÐµÐ»Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: On the nature of a chain of bright knots on the X-ray map of the Vela pulsar nebula
Creators: name: Ð¤ÑÑÑÐ¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¿ÑÐ»ÑÑÐ°ÑÐ½Ð°Ñ ÑÑÐ¼Ð°Ð½Ð½Ð¾ÑÑÑ
ÑÑÐ¼Ð°Ð½Ð½Ð¾ÑÑÑ ÐÐµÐ»Ð°
ÑÑÐ¼Ð°Ð½Ð½Ð¾ÑÑÑ ÐÑÐ°Ð±
ÐÐÐ
Ð ÐÐÐ
pulsar-wind nebula
Vela nebula
Cab nebula
MHD
RMHD

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description: The subject of the graduate qualification work is âOn the nature of a chainof bright knots on the X-ray map of the Vela pulsar nebulaâ.The subject of the work is a chain of tiny X-ray knots around the brightsegment of the southeast jet of the Vela nebula. Pulsar wind nebulae (PWNe)show complex and multi-scale X-ray morphology, with a wide variety of structuresin form of tori, jets, rings, arcs, and knots. The global torus-jet morphology ofPWNe is successfully reproduced in the frame of modern relativistic magnetohydrodynamical models. Meantime, the nature of many of the finer X-ray features,such as the knots in the inner ring of the Crab PWN or the knots around thesouth-eastern jet in the Vela PWN, remains unclear. Recently, the knots in Crabhave been interpreted as giant plasmoids, arising due to magnetic reconnectionin the equatorial current sheet just behind the shock that terminates the pulsarwind. In this work, we aim to find out whether the knots in Vela may haveformed in the same fashion. Using a relativistic MHD model we show that theconditions for magnetic reconnection in Vela-type objects can form in the outerpart of the equatorial belt of the nebula, provided the nebula moves relative toits surroundings at subsonic or weakly supersonic velocity.