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Analysis of the HST Ultraviolet Spectra for T Tauri Stars: RY Tau and HD115043

Lamzin, S. A.

The ultraviolet spectra of the stars RY Tau and HD115043 from the Hubble Space Telescope are analyzed. RY Tau belongs to the classical T Tauri stars, while HD115043 is a young (t ~ 3 x 10^8 years), chromospherically active star. The most intense emission lines were identified, and their fluxes were measured. Low-resolution spectra of RY Tau and HD…

Analysis of HST Ultraviolet Spectra for T Tauri Stars: RU Lup

Lamzin, S. A.

The ultraviolet spectra of the star RU Lup obtained with the Hubble Space Telescope are analyzed. Emission lines are identified. The presence of absorption components with a nearly zero residual intensity in the MgII resonance doublet lines is indicative of mass outflow with a velocity V_infty = 300 km/s. These lines also exhibit a broad (1400 km/…

Tidal Structures of z ~ 1 Galaxies in the Hubble Deep Field

Reshetnikov, V. P.

An analysis of the images of objects in the Northern Hubble Space Telescope Deep Field has revealed twelve galaxies with tidal tails at redshifts from 0.5 to 1.5. The integrated characteristics of the newly discovered tidal structures are found to be similar to those of the tails of local interacting galaxies. The space density of galaxies with ti…