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Searching Evidences for Spiral Shocks in the Quiescent Accretion Disk of U Gem

Published online by Cambridge University Press:  22 February 2018

V. V. Neustroev ,
V. Chavushyan  and
J. R. Valdés
V. V. Neustroev
Affiliation:
National University of Ireland, Galway, Ireland
V. Chavushyan
Affiliation:
Instituto Nacional de Astrofísica Óptica y Electrónica, Puebla, Pue, México
J. R. Valdés
Affiliation:
Instituto Nacional de Astrofísica Óptica y Electrónica, Puebla, Pue, México

Abstract

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We find that the quiescent accretion disk of U Gem has a complicated structure. Along to the bright spot originating in the region of interaction between the stream and the disk particles, there are also explicit indications of spiral shocks. The Doppler map and the variations of the peak separation of the emission lines are indicative.

Resumen

Resumen

Encontramos que el disco de acreción en la etapa de quietud de U Gem, tiene una estructura complicada. A lo largo de la mancha brillante originada en la región de interacción entre el chorro y las partículas del disco, hay también indicaciones de choques espirales. El mаpа Doppler y las variaciones en las separaciones del pico de las lineas de emisión son indicativos de ello.

Keywords

AccretionAccretion Disks — LineProfiles — Novae, Cataclysmic Variables Shock Waves — StarsIndividual (U Gem)
Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 162 - 163
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

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