Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Junkkarinen, V. T."'
Autor:
Junkkarinen, V. T., Cohen, Ross D., Beaver, E. A., Burbidge, E. M., Lyons, R. W., Madejski, G.
Publikováno v:
Astrophys.J. 614 (2004) 658-670
We present new HST STIS NUV-MAMA and STIS CCD observations of the BL Lac object AO 0235+164 and the intervening damped Ly alpha (DLA) line at z_a = 0.524. The line profile gives N(H I) = 5 +/- 1 x 10^{21} cm^{-2} and, combined with the H I 21 cm abso
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407281
Autor:
Dietrich, M., Hamann, F., Shields, J. C., Constantin, A., Vestergaard, M., Chaffee, F., Foltz, C. B., Junkkarinen, V. T.
Publikováno v:
Astrophys.J. 581 (2002) 912-924
We report on the analysis of a large sample of 744 type 1 Active Galactic Nuclei, including quasars and Seyfert 1 galaxies across the redshift range from 0 < z < 5 and spanning nearly 6 orders of magnitude in continuum luminosity. We discuss correlat
Externí odkaz:
http://arxiv.org/abs/astro-ph/0208348
Publikováno v:
Astron.J. 106 (1993) 426-443
We present Lick Observatory slit spectra of 38 objects which were claimed to have pronounced ultraviolet excess and emission lines by Zhan \& Chen. Most of our spectra have FWHM spectral resolutions of about 4~\AA , and relatively high S/N of about 1
Externí odkaz:
http://arxiv.org/abs/astro-ph/9305025
Autor:
Sitko, M. L., Junkkarinen, V. T.
Publikováno v:
Publications of the Astronomical Society of the Pacific; December 1985, Vol. 97 Issue: 598 p1158-1162, 5p
Publikováno v:
Astrophysics and Space Science; July 1989, Vol. 157 Issue: 1-2 p263-269, 7p