Does the interstellar bow shock exist around the heliosphere?

• Autorzy: Ratkiewicz R. , Kotlarz J.

Identyfikatory

DOI

10.5604/05096669.1226886

Warianty tytułu

PL

Czy istnieje miedzygwiazdowa czołowa fala uderzeniowa przed heliosferą?

• Języki publikacji: EN

Abstrakty

EN

The paper discusses results of global modeling of the heliosphere regarding the existence of the interstellar bow shock (BS) in front of the heliosphere. The Local Interstellar Medium (LISM) velocity vector (V_IS) and temperature (T_IS) originally determined through the velocity and temperature of the interstellar helium (He) flowing in the inner heliosphere and measured by the GAS instrument on Ulysses, recently have been challenged by new measurements of the He flow by the Interstellar Boundary Explorer (IBEX). These measurements have initiated discussions on the existence of the BS. The purpose of this paper is a brief overview of studies focusing on in situ measurements of the He flow by the instruments on Ulysses and IBEX missions and indication of the reasons for discrepancies created in the past few years and associated with the existence of the BS.

PL

W pracy przedyskutowano wyniki globalnego modelowania heliosfery dotyczące istnienia czołowej fali uderzeniowej (BS) przed heliosferą. Wektor prędkości (V_IS) i temperatura (T_IS) lokalnej materii międzygwiazdowej (LISM) oryginalnie wyznaczone przez prędkość i temperaturę międzygwiazdowego helu (He) wpływającego do heliosfery i mierzonego przez przyrząd GAS na sondzie Ulysses, ostatnio zostały zakwestionowane przez nowe pomiary przepływu He wykonane przez sondę Interstellar Boundary Explorer (IBEX). Pomiary te zainicjowały dyskusję na temat istnienia BS. Celem niniejszego artykułu jest krótki przegląd badań poświęconych pomiarom in situ strumienia helu przez instrumenty na sondach Ulysses i IBEX oraz wskazanie przyczyn rozbieżności związanych z istnieniem czołowej fali uderzeniowej powstałych wciągu kilku ostatnich lat [51].

Słowa kluczowe

EN

solar wind; interstellar medium; heliosphere; mhd modeling; bow shock

PL

wiatr słoneczny; materia międzygwiazdowa; heliosfera; modelowanie magnetohydrodynamiczne; czołowa fala uderzeniowa

• Wydawca: Wydawnictwa Naukowe Instytutu Lotnictwa
• Czasopismo: Prace Instytutu Lotnictwa
• Rocznik: 2016
• Tom: Nr 4 (245)
• Strony: 178--188
• Opis fizyczny: Bibliogr. 51 poz., rys., tab., wykr., wzory

Twórcy

autor

Ratkiewicz R.

• Institute of Aviation, Aleja Krakowska 110/114, 02-256 Warsaw, Poland

autor

Kotlarz J.

• Faculty of Physics, Warsaw University, ul. Pasteura 5, 02-093 Warsaw, Poland

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