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- W2082262965 abstract "view Abstract Citations (125) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Doppler Imaging of the Dwarf Nova U Geminorum Marsh, Thomas R. ; Horne, Keith ; Schlegel, Eric M. ; Honeycutt, R. Kent ; Kaitchuck, Ronald H. Abstract Doppler tomography is applied to time-resolved spectra of the dwarf nova U Geminorum, and it is found that emission from the bright-spot region has neither the velocity of the gas stream nor the velocity of the disk along the stream but lies roughly midway between. It is shown that earlier observations of U Gem were consistent with the present results, and it is concluded that the line emission arises immediately after the shock as the gas from the stream mixes with the disk. The data also show evidence for Balmer emission from the secondary star which, together with the bright spot's emission, produces a complicated S-wave in trailed spectra. Publication: The Astrophysical Journal Pub Date: December 1990 DOI: 10.1086/169446 Bibcode: 1990ApJ...364..637M Keywords: Binary Stars; Doppler Effect; Dwarf Novae; Stellar Spectra; Accretion Disks; Balmer Series; Emission Spectra; S Waves; Astrophysics; STARS: BINARIES; STARS: INDIVIDUAL CONSTELLATION NAME: U GEMINORUM; STARS: NOVAE full text sources ADS | data products SIMBAD (4)" @default.
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- W2082262965 date "1990-12-01" @default.
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- W2082262965 title "Doppler imaging of the dwarf nova U Geminorum" @default.
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