Search Results - "Elvius, A."

Detailed observations of NGC 4151 with IUE – I Low dispersion data up to 1979 January by Penston, M. V., Boksenberg, A., Bromage, G. E., Clavel, J., Elvius, A., Gondhalekar, P. M., Jordan, C., Lind, J., Lindegren, L., Perola, G. C., Pettini, M., Snijders, M. A. J., Tanzi, E. G., Tarenghi, M., Ulrich, M. H.

“…This paper reports low resolution ultraviolet spectroscopic monitoring of NGC 4151 with IUE in the period 1978 February to 1979 January. Observations were made…”
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Narrow and variable lines in the ultraviolet spectrum of the Seyfert galaxy NGC4151 by Ulrich, M. H, Altamore, A, Boksenberg, A, Bromage, G. E, Clavel, J, Elvius, A, Penston, M. V, Perola, G. C, Snijders, M. A. J

“…The Seyfert galaxy NGC4151 observed when the nucleus is at a minimum has two emission lines of full width at half maximum less than 7 and 16 A, respectively,…”
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Detailed ultraviolet observations of the quasar 3C 273 with IUE by Ulrich, M. H., Boksenberg, A., Bromage, G., Carswell, R., Elvius, A., Gabriel, A., Gondhalekar, P. M., Lind, J., Lindegren, L., Longair, M. S., Penston, M. V., Perryman, M. A. C., Pettini, M., Perola, G. C., Rees, M., Sciama, D., Snijders, M. A. J., Tanzi, E., Tarenghi, M., Wilson, R.

“…We have obtained nine spectra of the quasar 3C 273 with the International Ultraviolet Explorer with the aim of combining them and obtaining a high…”
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Detailed observations of NGC 4151 with IUE – IV. Absorption line spectrum and variability by Bromage, G. E., Boksenberg, A., Clavel, J., Elvius, A., Penston, M. V., Perola, G. C., Pettini, M., Snijders, M. A. J., Tanzi, E. G., Ulrich, M. H.

“…A detailed analysis is presented of the ultraviolet (λλ 1150–3200 Å) absorption spectrum of the NGC 4151 Seyfert nucleus. The IUE data base consisted of…”
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Antimatter, Quasi-stellar Objects, and the Evolution of Galaxies by Alfvén, Hannes, Elvius, Aina

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Simultaneous EXOSAT-IUE observations of NGC 4151 by Perola, G.C., Altamore, A., Boksenberg, A., Bromage, G.E., Clavel, J., Elvius, A., Penston, M.V., Pettini, M., Piro, L., Snijders, M.A.J., Tarenghi, M., Ulrich, M.H.

“…NGC 4151 was observed four times in November 1983. The results indicate that: (1) there exists a correlation between the X-ray and UV fluxes on the long term;…”
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Detailed observations of NGC 4151 with IUE – III. Variability of the strong emission lines from 1978 February to 1980 May by Ulrich, M. H., Boksenberg, A., Bromage, G. E., Clavel, J., Elvius, A., Penston, M. V., Perola, G. C., Pettini, M., Snijders, M. A. J., Tanzi, E. G., Tarenghi, M.

“…Observations of the variability of the three strong ultraviolet emission lines in the Seyfert galaxy NGC 4151 (C IV, C III] and Mg II) are used to study the…”
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IUE observations of extragalactic objects by Boksenberg, A, Snijders, M. A. J, Wilson, R, Benvenuti, P, Clavell, J, Macchetto, F, Penston, M, Boggess, A, Gull, T. R, Gondhalekar, P, Lane, A. L, Turnrose, B, Wu, C. C, Burton, W. M, Smith, A, Bertola, F, Capaccioli, M, Elvius, A. M, Fosbury, R, Tarenghi, M, Ulrich, M.-H, Hackney, R. L, Jordan, C, Perola, C. G, Roeder, R. C, Schmidt, M

“…During the commissioning phase of IUE several extragalactic objects were observed spectrally at low dispersion in the UV range lambda lambda 1150-3200: the…”
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Ultraviolet, optical and X-ray monitoring of the continuum of NGC 4151 by Perola, G. C., Boksenberg, A., Bromage, G. E., Clavel, J., Elvis, M., Elvius, A., Gondhalekar, P. M., Lind, J., Lloyd, C., Penston, M. V., Pettini, M., Snijders, M. A. J., Tanzi, E. G., Tarenghi, M., Ulrich, M. H., Warwick, R. S.

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Extragalactic astronomy including observational cosmology by ELVIUS, A

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The ultra-compact broad emission line region in NGC 4151 by CLAVEL, J, BOKSENBERG, A, BROMAGE, G. E, ELVIUS, A, PENSTON, M. V, PEROLA, G. C, SANTOS-LLEO, M, SNIJDERS, M. A. J, ULRICH, M.-H

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Magnetic fields in galaxies as revealed by the polarization of light by Elvius, Aina

“…Polarimetric data are examined for about 15 spiral galaxies, and the magnetic fields revealed by the observation of optical polarization in these galaxies are…”
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Absorption of Radio Radiation in M 82 and Other Galaxies by ELVIUS, AINA

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Narrow and variable lines in the ultraviolet spectrum of the Seyfert galaxy NGC 4151 by ULRICH, M. H, ALTAMORE, A, BOKSENBERG, A, BROMAGE, G. E, CLAVEL, J, ELVIUS, A, PENSTON, M. V, PEROLA, G. C, SNIJDERS, M. A. J

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Erratum: Detailed observations of NGC 4151 with IUE – III. Variability of the strong emission lines from 1978 February to 1980 May by Ulrich, M. H., Boksenberg, A., Bromage, G. E., Clavel, J., Elvius, A., Penston, M. V., Perola, G. C., Pettini, M., Snijders, M. A. J., Tanzi, E. G., Tarenghi, M.

“…‘Detailed observations of NGC 4151 with IUE – III. Variability of the strong emission lines from 1978 February to 1980 May’ by M. H. Ulrich et al. was…”
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Erratum: Detailed observations of NGC 4151 with IUE ― III. Variability of the strong emission lines from 1978 February to 1980 May by ULRICH, M. H, BOKSENBERG, A, TARENGHI, M, BROMAGE, G. E, CLAVEL, J, ELVIUS, A, PENSTON, M. V, PEROLA, G. C, PETTINI, M, SNIJDERS, M. A. J, TANZI, E. G

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Detailed observations of NGC 4151 with IUE – II. Variability of the continuum from 1978 February to 1980 May, including X-ray and optical observations by Perola, G. C., Boksenberg, A., Bromage, G. E., Clavel, J., Elvis, M., Elvius, A., Gondhalekar, P. M., Lind, J., Lloyd, C., Penston, M. V., Pettini, M., Snijders, M. A. J., Tanzi, E. G., Tarenghi, M., Ulrich, M. H., Warwick, R. S.

“…NGC 4151 has been extensively monitored with IUE from 1978 February to 1980 May. The rather erratic behaviour of the ultraviolet light curve seems to be mainly…”
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A Diffraction Corona Near the Centre of the Spiral Nebula NGC 4216 by LINDBLAD, BERIL, ELVIUS, AINA

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