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- W1987864101 abstract "view Abstract Citations (38) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Detection of Accreting Gas toward HD 45677: A Newly Recognized, Herbig Be Proto--Planetary System Grady, C. A. ; Bjorkman, K. S. ; Shepherd, D. ; Schulte-Ladbeck, R. E. ; Perez, M. R. ; de Winter, D. ; The, P. S. Abstract We report the detection of high-velocity, accreting gas toward the BE(e) star with IR excess and bipolar nebula, HD 45677. High-velocity (+200 to +400 km/s), variable column density gas is visible in all IUE spectra from 1979 to 1992 in transitions of Si II, C II, Al III, Fe III, Si IV, and C IV. Low-velocity absorption profiles from low oscillator strength transitions of Si II, Fe II, and Zn II exhibit double-peaked absorption profiles similar to those previously reported in optical spectra of FU Orionis objects. The UV absorption data, together with previously reported analyses of the IR excess and polarization of this object, suggest that HD 45677 is a massive, Herbig Be star with an actively accreting circumstellar, protoplanetary disk. Publication: The Astrophysical Journal Pub Date: September 1993 DOI: 10.1086/187027 Bibcode: 1993ApJ...415L..39G Keywords: Accretion Disks; B Stars; Interstellar Matter; Protoplanets; Stellar Spectra; Emission Spectra; Planetary Systems; Pre-Main Sequence Stars; Ultraviolet Astronomy; Astrophysics; ULTRAVIOLET: STARS; ACCRETION; ACCRETION DISKS; STARS: CIRCUMSTELLAR MATTER; STARS: INDIVIDUAL HENRY DRAPER NUMBER: HD 45677; STARS: PRE--MAIN-SEQUENCE; STARS: EMISSION-LINE; BE full text sources ADS | data products SIMBAD (8) MAST (1) INES (1)" @default.
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- W1987864101 date "1993-09-01" @default.
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- W1987864101 title "Detection of accreting gas toward HD 45677 - A newly recognized, Herbig Be proto-planetary system" @default.
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