Zobrazeno 1 - 10
of 22
pro vyhledávání: '"K. T. Korista"'
Autor:
F. S. Guzmán, Gerard A. Kriss, Gary J. Ferland, M. R. Goad, G. De Rosa, K. T. Korista, M. Mehdipour, M. Dehghanian, Bradley M. Peterson, Marios Chatzikos, Misty C. Bentz
The unusual behavior of the spectral lines of NGC5548 during the STORM campaign demonstrated a missing piece in the structure of AGNs. For a two-month period in the middle of the campaign, the spectral lines showed a deficit in flux and a reduced res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3d1f82a485d96ee3074da38b92480ae
Autor:
Nahum Arav, Gary J. Ferland, Marios Chatzikos, Bradley M. Peterson, M. Mehdipour, G. De Rosa, P. A. M. van Hoof, Gerard A. Kriss, M. R. Goad, K. T. Korista, M. Dehghanian, F. Guzmán
The 180-day Space Telescope and Optical Reverberation Mapping campaign on NGC 5548 discovered an anomalous period, the broad-line region (BLR) holiday, in which the emission lines decorrelated from the continuum variations. This is important since th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa037a2f5b99f22cf21d19322b7e7dc5
http://arxiv.org/abs/1908.07686
http://arxiv.org/abs/1908.07686
Autor:
Michael Fausnaugh, K. T. Korista, I. M. Mc Hardy, Bradley M. Peterson, E. Dalla Bontà, P. A. M. van Hoof, D. A. Starkey, R. Williams, Gerard A. Kriss, M. Dehghanian, M. R. Goad, Jelle Kaastra, Misty C. Bentz, R. W. Pogge, N. Arav, G. De Rosa, Marios Chatzikos, Gary J. Ferland, Christian Knigge, W. N. Brandt, J. M. Gelbord, Susanna Bisogni, Anchal Gupta, Keith Horne, Marianne Vestergaard, Aaron J. Barth, F. Guzmán, D. M. Crenshaw, M. Mehdipour, S. Mathur
Publikováno v:
Dehghanian, M, Ferland, G J, Kriss, G A, Peterson, B M, Mathur, S, Mehdipour, M, Guzmán, F, Chatzikos, M, Van Hoof, P A M, Williams, R J R, Arav, N, Barth, A J, Bentz, M C, Bisogni, S, Brandt, W N, Crenshaw, D M, Bonta, E D, De Rosa, G, Fausnaugh, M M, Gelbord, J M, Goad, M R, Gupta, A, Horne, K, Kaastra, J, Knigge, C, Korista, K T, McHardy, I M, Pogge, R W, Starkey, D A & Vestergaard, M 2019, ' Space Telescope and Optical Reverberation Mapping Project. X. Understanding the Absorption-line Holiday in NGC 5548 ', Astrophysical Journal, vol. 877, no. 2, 119 . https://doi.org/10.3847/1538-4357/ab1b48
The flux variations in the emission lines in active galactic nuclei (AGNs) are driven by variations in the ionizing continuum flux --which are usually reflected in the observable UV-optical continuum. The "Reverberation mapping" technique measures th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe31015f75ecc10de2b6a5f2e680800b
https://eprints.soton.ac.uk/427238/
https://eprints.soton.ac.uk/427238/
Autor:
M. M. Fausnaugh, K. D. Denney, A. J. Barth, M. C. Bentz, M. C. Bottorff, M. T. Carini, K. V. Croxall, G. De Rosa, M. R. Goad, Keith Horne, M. D. Joner, S. Kaspi, M. Kim, S. A. Klimanov, C. S. Kochanek, D. C. Leonard, H. Netzer, B. M. Peterson, K. Schnülle, S. G. Sergeev, M. Vestergaard, W.-K. Zheng, Y. Zu, M. D. Anderson, P. Arévalo, C. Bazhaw, G. A. Borman, T. A. Boroson, W. N. Brandt, A. A. Breeveld, B. J. Brewer, E. M. Cackett, D. M. Crenshaw, E. Dalla Bontà, A. De Lorenzo-Cáceres, M. Dietrich, R. Edelson, N. V. Efimova, J. Ely, P. A. Evans, A. V. Filippenko, K. Flatland, N. Gehrels, S. Geier, J. M. Gelbord, L. Gonzalez, V. Gorjian, C. J. Grier, D. Grupe, P. B. Hall, S. Hicks, D. Horenstein, T. Hutchison, M. Im, J. J. Jensen, J. Jones, J. Kaastra, B. C. Kelly, J. A. Kennea, S. C. Kim, K. T. Korista, G. A. Kriss, J. C. Lee, P. Lira, F. MacInnis, E. R. Manne-Nicholas, S. Mathur, I. M. McHardy, C. Montouri, R. Musso, S. V. Nazarov, R. P. Norris, J. A. Nousek, D. N. Okhmat, A. Pancoast, I. Papadakis, J. R. Parks, L. Pei, R. W. Pogge, J.-U. Pott, S. E. Rafter, H.-W. Rix, D. A. Saylor, J. S. Schimoia, M. Siegel, M. Spencer, D. Starkey, H.-I. Sung, K. G. Teems, T. Treu, C. S. Turner, P. Uttley, C. Villforth, Y. Weiss, J.-H. Woo, H. Yan, S. Young
Publikováno v:
Fausnaugh, M M, Denney, K D, Barth, A J, Bentz, M C, Bottorff, M C, Carini, M T, Croxall, K V, De Rosa, G, Goad, M R, Horne, K, Joner, M D, Kaspi, S, Kim, M, Klimanov, S A, Kochanek, C S, Leonard, D C, Netzer, H, Peterson, B M, Schnülle, K, Sergeev, S G, Vestergaard, M, Zheng, W K, Zu, Y, Anderson, M D, Arévalo, P, Bazhaw, C, Borman, G A, Boroson, T A, Brandt, W N, Breeveld, A A, Brewer, B J, Cackett, E M, Crenshaw, D M, Dalla Bontà, E, De Lorenzo-Cáceres, A, Dietrich, M, Edelson, R, Efimova, N V, Ely, J, Evans, P A, Filippenko, A V, Flatland, K, Gehrels, N, Geier, S, Gelbord, J M, Gonzalez, L, Gorjian, V, Grier, C J, Grupe, D, Hall, P B, Hicks, S, Horenstein, D, Hutchison, T, Im, M, Jensen, J J, Jones, J, Kaastra, J, Kelly, B C, Kennea, J A, Kim, S C, Korista, K T, Kriss, G A, Lee, J C, Lira, P, MacInnis, F, Manne-Nicholas, E R, Mathur, S, McHardy, I M, Montouri, C, Musso, R, Nazarov, S V, Norris, R P, Nousek, J A, Okhmat, D N, Pancoast, A, Papadakis, I, Parks, J R, Pei, L, Pogge, R W, Pott, J U, Rafter, S E, Rix, H W, Saylor, D A, Schimoia, J S, Siegel, M, Spencer, M, Starkey, D, Sung, H I, Teems, K G, Treu, T, Turner, C S, Uttley, P, Villforth, C, Weiss, Y, Woo, J H, Yan, H & Young, S 2016, ' Space telescope and optical reverberation mapping project. III. Optical continuum emission and broadband time delays in NGC 5548 ', Astrophysical Journal, vol. 821, no. 1, pp. 1-25 . https://doi.org/10.3847/0004-637X/821/1/56
ASTROPHYSICAL JOURNAL, 821(1), 56
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Astrophysical Journal, 821(1):56. IOP Publishing Ltd.
ASTROPHYSICAL JOURNAL, 821(1), 56
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Astrophysical Journal, 821(1):56. IOP Publishing Ltd.
We present ground-based optical photometric monitoring data for NGC 5548, part of an extended multi-wavelength reverberation mapping campaign. The light curves have nearly daily cadence from 2014 January to July in nine filters (\emph{BVRI} and \emph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37a3ce3979cfaf6eb20b4520e89323c8
https://purehost.bath.ac.uk/ws/files/143958395/apj_821_1_56.pdf
https://purehost.bath.ac.uk/ws/files/143958395/apj_821_1_56.pdf
Publikováno v:
The Astrophysical Journal. 512:L95-L98
During the 1996 HST/FOS monitoring campaign of the Seyfert 1 galaxy NGC 3516, the UV continuum showed a factor of 5 variation; correspondingly the strongest broad UV emission lines (e.g. Ly-alpha, CIV) displayed somewhat weaker, though still signific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c30c7a3a0092b5fb54f11757e2a636ab
https://doi.org/10.1086/311884
https://doi.org/10.1086/311884
Autor:
Robert W. Goodrich, Martin Elvis, J. C. Shields, W. van Breugel, K. T. Korista, Smita Mathur, Bradley M. Peterson, Fred Hamann, M. S. Brotherton, M. deKool, M. Voit, Nahum Arav, Paul J. Green, Vinay L. Kashyap, Isaac Shlosman, Dean C. Hines, M. Crenshaw
Publikováno v:
Scopus-Elsevier
We present a deep ASCA observation of a Broad Absorption Line Quasar (BALQSO) PG0946+301. The source was clearly detected in one of the gas imaging spectrometers, but not in any other detector. If BALQSOs have intrinsic X-ray spectra similar to norma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d3673631fa8d7b26cf9ba0586d34e44
https://pubmed.ncbi.nlm.nih.gov/10770695
https://pubmed.ncbi.nlm.nih.gov/10770695
Autor:
D. M. Crenshaw, P. M. Rodriguez-Pascual, S. V. Penton, R. A. Edelson, D. Alloin, T. R. Ayres, J. Clavel, K. Horne, W. N. Johnson, S. Kaspi, K. T. Korista, G. A. Kriss, J. H. Krolik, M. A. Malkan, D. Maoz, H. Netzer, P. T. O'Brien, B. M. Peterson, G. A. Reichert, J. M. Shull, M.-H. Ulrich, W. Wamsteker, R. S. Warwick, T. Yaqoob, T. J. Balonek, P. Barr, G. E. Bromage, M. Carini, T. E. Carone, F.-Z. Cheng, K. K. Chuvaev, M. Dietrich, V. T. Doroshenko, D. Dultzin-Hacyan, A. V. Filippenko, C. M. Gaskell, I. S. Glass, M. R. Goad, J. Hutchings, D. Kazanas, W. Kollatschny, A. P. Koratkar, A. Laor, K. Leighly, V. M. Lyutyi, G. M. MacAlpine, Yu. F. Malkov, P. G. Martin, B. McCollum, N. I. Merkulova, L. Metik, V. G. Metlov, H. R. Miller, S. L. Morris, V. L. Oknyanskij, J. Penfold, E. Perez, G. C. Perola, G. Pike, R. W. Pogge, I. Pronik, V. I. Pronik, R. L. Ptak, M. C. Recondo-Gonzalez, J. M. Rodriguez-Espinoza, E. L. Rokaki, J. Roland, A. C. Sadun, I. Salamanca, M. Santos-Lleo, S. G. Sergeev, S. M. Smith, M. A. J. Snijders, L. S. Sparke, G. M. Stirpe, R. E. Stoner, W.-H. Sun, E. van Groningen, R. M. Wagner, S. Wagner, I. Wanders, W. F. Welsh, R. J. Weymann, B. J. Wilkes, W. Zheng
Publikováno v:
Scopus-Elsevier
We present the results of an intensive ultraviolet monitoring campaign on the Seyfert 1 galaxy NGC 4151, as part of an effort to study its short time-scale variability over a broad range in wavelength. The nucleus of NGC 4151 was observed continuousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2466367e2322c8c786f03ec1e682e3e
Autor:
B. M. Peterson, K. T. Korista
Publikováno v:
Multi-Wavelength Continuum Emission of AGN ISBN: 9780792327455
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02d1ef2297d842f980bce437e567ef43
https://doi.org/10.1007/978-94-010-9537-2_23
https://doi.org/10.1007/978-94-010-9537-2_23
Autor:
K. T. Korista, D. Alloin, P. Barr, J. Clavel, R. D. Cohen, D. M. Crenshaw, I. N. Evans, K. Horne, A. P. Koratkar, G. A. Kriss, J. H. Krolik, M. A. Malkan, S. L. Morris, H. Netzer, P. T. O'Brien, B. M. Peterson, G. A. Reichert, P. M. Rodriguez-Pascual, W. Wamsteker, K. S. J. Anderson, D. J. Axon, E. Benitez, P. Berlind, R. Bertram, J. H., Jr. Blackwell, N. G. Bochkarev, C. Boisson, M. Carini, R. Carrillo, T. E. Carone, F.-Z. Cheng, J. A. Christensen, K. K. Chuvaev, M. Dietrich, J. J. Dokter, V. Doroshenko, D. Dultzin-Hacyan, M. N. England, B. R. Espey, A. V. Filippenko, C. M. Gaskell, M. R. Goad, L. C. Ho, J. P. Huchra, X. J. Jiang, S. Kaspi, W. Kollatschny, A. Laor, J.-P. Luminet, G. M. MacAlpine, J. W. MacKenty, Yu. F. Malkov, D. Maoz, P. G. Martin, T. Matheson, B. McCollum, N. Merkulova, L. Metik, M. Mignoli, H. R. Miller, M. G. Pastoriza, D. Pelat, J. Penfold, M. Perez, G. C. Perola, J. L. Persaud, J. Peters, R. Pitts, R. W. Pogge, I. Pronik, V. I. Pronik, R. L. Ptak, L. Rawley, M. C. Recondo-Gonzalez, J. M. Rodriguez-Espinosa, W. Romanishin, A. C. Sadun, I. Salamanca, M. Santos-Lleo, K. Sekiguchi, S. G. Sergeev, A. I. Shapovalova, J. C. Shields, C. Shrader, J. M. Shull, N. A. Silbermann, M. L. Sitko, D. R. Skillman, H. A. Smith, S. M. Smith, M. A. J. Snijders, L. S. Sparke, G. M. Stirpe, R. E. Stoner, W.-H. Sun, U. Thiele, S. Tokarz, Z. I. Tsvetanov, D. A. Turnshek, S. Veilleux, R. M. Wagner, S. J. Wagner, I. Wanders, T. Wang, W. F. Welsh, R. J. Weymann, R. J. White, B. J. Wilkes, B. J. Wills, C. Winge, H. Wu, Z. L. Zou
Publikováno v:
The Astrophysical Journal Supplement Series. 97:285
We present the data and initial results from a combined Hubble Space Telescope (HST)/IUE/ground-based spectroscopic monitoring campaign on the Seyfert 1 galaxy NGC 5548 that was undertaken in order to address questions that require both higher tempor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdcfbe7a6709d8574c2675861f391094
https://doi.org/10.1086/192144
https://doi.org/10.1086/192144
Autor:
K. T. Korista, E. M. Burbidge, Simon L. Morris, V. T. Junkkarinen, Ray J. Weymann, George F. Hartig, Craig B. Foltz, Michael Kopko, David A. Turnshek
Publikováno v:
The Astrophysical Journal. 401:529
Faint Object Spectrograph data from the Hubble Space Telescope of the broad absorption line quasar 0226-1024 have revealed the presence of 8-10 absorbing ions between 680 and 1000 A (restframe): C III, N III, N IV, O III, O IV, O VI, S V, S VI, possi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aa261b123edec8893cb85c884a6033a
https://doi.org/10.1086/172084
https://doi.org/10.1086/172084