Search Results - "Junkkarinen, Vesa"

Variability Tests for Intrinsic Absorption Lines in Quasar Spectra by Narayanan, Desika, Hamann, Fred, Barlow, Tom, Burbidge, E. M, Cohen, Ross D, Junkkarinen, Vesa, Lyons, Ron

“…Quasar spectra have a variety of absorption lines whose origins range from energetic winds expelled from the central engines to unrelated, intergalactic…”
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HST STIS Observations of PG 0946+301: The Highest Quality UV Spectrum of a BALQSO by Arav, Nahum, de Kool, Martijn, Korista, Kirk T, Crenshaw, D. Michael, van Breugel, Wil, Brotherton, Michael, Green, Richard F, Pettini, Max, Wills, Bev, de Vries, Wim, Becker, Bob, Brandt, W. N, Green, Paul, Junkkarinen, Vesa T, Koratkar, Anuradha, Laor, Ari, Laurent-Muehleisen, Sally A, Mathur, Smita, Murray, Norman

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High-Resolution Spectra of Intrinsic Absorption Lines in the Quasi-stellar Object UM 675 by Hamann, Fred, Barlow, Thomas A, Junkkarinen, Vesa, Burbidge, E. M

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Time-variable Intrinsic Absorption Lines in the Quasi-stellar Object Q2343+125 by Hamann, Fred, Barlow, Thomas A, Junkkarinen, Vesa

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The Type Ic Supernova 1994I in M51: Detection of Helium and Spectral Evolution by Filippenko, Alexei V, Barth, Aaron J, Matheson, Thomas, Armus, Lee, Brown, Michael, Espey, Brian R, Fan, Xiao-Ming, Goodrich, Robert W, Ho, Luis C, Junkkarinen, Vesa T, Koo, David C, Lehnert, Matthew D, Martel, André R, Mazzarella, Joseph M, Miller, Joseph S, Smith, Graeme H, Tytler, David, Wirth, Gregory D

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The Dust-to-Gas Ratio in the Damped Lyα Clouds toward the Gravitationally Lensed QSO 0957+561 by Zuo, Lin, Beaver, E. A, Burbidge, E. Margaret, Cohen, Ross D, Junkkarinen, Vesa T, Lyons, R. W

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Hubble Space Telescope Observations of the Broad Absorption Line QuasarPG 0946+301 by Arav, Nahum, Korista, Kirk T, de Kool, Martijn, Junkkarinen, Vesa T, Begelman, Mitchell C

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NE VIII lambda 774 and time variable associated absorption in the QSO UM 675 by Hamann, Fred, Barlow, Thomas A., Beaver, E. A., Burbidge, E. M., Cohen, Ross D., Junkkarinen, Vesa, Lyons, R.

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NE VIII lambda 774 and time variable associated absorption in the QSO UM 675 by Hamann, Fred, Barlow, Thomas A., Beaver, E. A., Burbidge, E. M., Cohen, Ross D., Junkkarinen, Vesa, Lyons, R.

“…We discuss measurements of Ne VIII lambda 774 absorption and the time variability of other lines in the z(sub a) approximately equal z(sub e) absorption system…”
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The Nature and Origin of za ze Absorption Lines in the Redshift 0.20 Quasar, PKS 2135–147 by Hamann, Fred, Beaver, E. A, Cohen, Ross D, Junkkarinen, Vesa, Lyons, R. W, Burbidge, E. M

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Broad Ne VIII λ774 Emission from Quasars by Hamann, Fred, Cohen, Ross D, Shields, Joseph C, Burbidge, E. M, Junkkarinen, Vesa, Crenshaw, D. M

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The Nature and Origin of z a ≈ z e Absorption Lines in the Redshift 0.20 Quasar, PKS 2135−147 by Hamann, Fred, Beaver, E. A., Cohen, Ross D., Junkkarinen, Vesa, Lyons, R. W., Burbidge, E. M.

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CONTINUUM AND LINE FLUXES OF OJ 287 AT MINIMUM LIGHT by SITKO, MICHAEL L., JUNKKARINEN, VESA T.

“…We report optical-infrared continuum observations of OJ287 during its lowest recorded flux level. The spectrum was steeper than previously seen, but does not…”
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A 21 Centimeter Absorber Identified with a Spiral Galaxy: Hubble Space Telescope Faint Object Spectrograph and Wide-Field Camera Observations of 3CR 196 by Cohen, Ross D., Beaver, E. A., Diplas, Athanassios, Junkkarinen, Vesa T., Barlow, Thomas A., Lyons, Ronald W.

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SPECTROPHOTOMETRY OF THE QSO NRAO 530 by JUNKKARINEN, VESA

“…Spectrophotometry of the QSO NRAO 530 with the KPNO Cryogenic Camera is presented. A redshift of 0.902 is determined from Hβ, Hγ, and [O ıı] λ3727 emission…”
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The Type I[CLC]c[/CLC] Supernova 1994I in M51: Detection of Helium and Spectral Evolution by Filippenko, Alexei V., Barth, Aaron J., Matheson, Thomas, Armus, Lee, Brown, Michael, Espey, Brian R., Fan, Xiao-Ming, Goodrich, Robert W., Ho, Luis C., Junkkarinen, Vesa T., Koo, David C., Lehnert, Matthew D., Martel, André R., Mazzarella, Joseph M., Miller, Joseph S., Smith, Graeme H., Tytler, David, Wirth, Gregory D.

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Variability Tests for Intrinsic Absorption Lines in Quasar Spectra by Narayanan, Desika, Hamann, Fred, Barlow, Tom, Burbidge, E. M, Cohen, Ross D, Junkkarinen, Vesa, Lyons, Ron

“…Astrophys.J. 601 (2004) 715-722 Quasar spectra have a variety of absorption lines whose origins range from energetic winds expelled from the central engines to…”
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HST Observations of the Broad Absorption Line Quasar PG 0946+301 by Arav, Nahum, Korista, Kirk T, de Kool, Martijn, Junkkarinen, Vesa T, Begelman, Mitchell C

“…We analyze HST and ground based spectra of the brightest BALQSO in the UV: PG~0946+301. A detailed study of the absorption troughs as a function of velocity is…”
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Broad NeVIII 774 Emission From Quasars by Hamann, Fred, Cohen, Ross D, Shields, Joseph, Burbidge, E. M, Junkkarinen, Vesa, Crenshaw, D. M

“…NeVIII 774 is an important tracer of the high-ionization gas in QSOs. We examine the NeVIII emission-line properties using new HST-FOS spectra of four sources,…”
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Hubble Space Telescope Ultraviolet Spectroscopy of Fourteen Low-Redshift Quasars by Ganguly, Rajib, Brotherton, Michael S, Arav, Nahum, Heap, Sara R, Wisotzki, Lutz, Aldcroft, Thomas L, Alloin, Danielle, Behar, Ehud, Canalizo, Gabriela, Crenshaw, D. Michael, de Kool, Martijn, Chambers, Kenneth, Cecil, Gerald, Chatzichristou, Eleni, Everett, John, Gabel, Jack, Gaskell, C. Martin, Galliano, Emmanuel, Green, Richard F, Hall, Patrick B, Hines, Dean C, Junkkarinen, Vesa T, Kaastra, Jelle S, Kaiser, Mary Elizabeth, Kazanas, Demosthenes, Konigl, Arieh, Korista, Kirk T, Kriss, Gerard A, Laor, Ari, Leighly, Karen M, Mathur, Smita, Ogle, Patrick, Proga, Daniel, Sabra, Bassem, Sivron, Ran, Snedden, Stephanie, Telfer, Randal, Vestergaard, Marianne

“…Astron.J.133:479-488,2007 We present low-resolution ultraviolet spectra of 14 low redshift (z<0.8) quasars observed with HST/STIS as part of a Snap project to…”
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