Search Results - "Kriss, A."

Dimming of Continuum Captured in Mrk 841: New Clues on the Nature of the Soft X-Ray Excess by Mehdipour, Missagh, Kriss, Gerard A., Kaastra, Jelle S., Costantini, Elisa, Mao, Junjie

“…Abstract We report on a remarkable change in the spectral energy distribution (SED) of Mrk 841, providing new insights on how the soft X-ray excess emission in…”
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Rethinking Homicide: Exploring the Structure and Process Underlying Deadly Situations by Miethe, Terance D., Regoeczi, Wendy C.

“…Using multiple data sources and methods, this book involves a micro-historical analysis of the nature of change and stability in homicide situations over time…”
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Changing-look Event in NGC 3516: Continuum or Obscuration Variability? by Mehdipour, Missagh, Kriss, Gerard A., Brenneman, Laura W., Costantini, Elisa, Kaastra, Jelle S., Branduardi-Raymont, Graziella, Di Gesu, Laura, Ebrero, Jacobo, Mao, Junjie

“…Abstract The Seyfert-1 galaxy NGC 3516 has undergone major spectral changes in recent years. In 2017 we obtained Chandra, NuSTAR, and Swift observations during…”
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A fast and long-lived outflow from the supermassive black hole in NGC 5548 by Kaastra, J. S., Kriss, G. A., Cappi, M., Mehdipour, M., Petrucci, P.-O., Steenbrugge, K. C., Arav, N., Behar, E., Bianchi, S., Boissay, R., Branduardi-Raymont, G., Chamberlain, C., Costantini, E., Ely, J. C., Ebrero, J., Di Gesu, L., Harrison, F. A., Kaspi, S., Malzac, J., De Marco, B., Matt, G., Nandra, K., Paltani, S., Person, R., Peterson, B. M., Pinto, C., Ponti, G., Nuñez, F. Pozo, De Rosa, A., Seta, H., Ursini, F., de Vries, C. P., Walton, D. J., Whewell, M.

“…Supermassive black holes in the nuclei of active galaxies expel large amounts of matter through powerful winds of ionized gas. The archetypal active galaxy NGC…”
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First High-resolution Spectroscopy of X-Ray Absorption Lines in the Obscured State of NGC 5548 by Mehdipour, Missagh, Kriss, Gerard A., Kaastra, Jelle S., Costantini, Elisa, Gu, Liyi, Landt, Hermine, Mao, Junjie, Rogantini, Daniele

“…Abstract Multiwavelength spectroscopy of NGC 5548 revealed remarkable changes due to the presence of an obscuring wind from the accretion disk. This broadened…”
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Detection of Dust in High-velocity Cloud Complex C–Enriched Gas Accreting onto the Milky Way by Fox, Andrew J., Cashman, Frances H., Kriss, Gerard A., de Rosa, Gisella, Plesha, Rachel, Homayouni, Yasaman, Richter, Philipp

“…Abstract We present the detection of dust depletion in Complex C, a massive, infalling, low-metallicity high-velocity cloud in the northern Galactic hemisphere…”
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UV–Optical Disk Reverberation Lags despite a Faint X-Ray Corona in the Active Galactic Nucleus Mrk 335 by Kara, Erin, Barth, Aaron J., Cackett, Edward M., Gelbord, Jonathan, Montano, John, Li, Yan-Rong, Santana, Lisabeth, Horne, Keith, Alston, William N., Buisson, Douglas, Chelouche, Doron, Du, Pu, Fabian, Andrew C., Fian, Carina, Gallo, Luigi, Goad, Michael R., Grupe, Dirk, González Buitrago, Diego H., Hernández Santisteban, Juan V., Kaspi, Shai, Hu, Chen, Komossa, S., Kriss, Gerard A., Lewin, Collin, Lewis, Tiffany, Loewenstein, Michael, Lohfink, Anne, Masterson, Megan, McHardy, Ian M., Mehdipour, Missagh, Miller, Jake, Panagiotou, Christos, Parker, Michael L., Pinto, Ciro, Remillard, Ron, Reynolds, Christopher, Rogantini, Daniele, Wang, Jian-Min, Wang, Jingyi, Wilkins, Dan

“…Abstract  We present the first results from a 100-day Swift, NICER, and ground-based X-ray–UV–optical reverberation mapping campaign of the Narrow-line Seyfert…”
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Relationship Between Yearly Fluctuations in Fusarium Head Blight Intensity and Environmental Variables: A Window-Pane Analysis by Kriss, A.B, Paul, P.A, Madden, L.V

“…Window-pane methodology was used to determine the length and starting time of temporal windows where environmental variables were associated with annual…”
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An Investigation into the Portrayal of Organ Donation on Grey's Anatomy Seasons 1 Through 15 by Quick, Brian L., Kriss, Lauren A., Rains, Stephen A., Sherlock-Jones, Margaret, Jang, Minjoung

“…The current project sought to extend prior research examining organ donation portrayals on Grey's Anatomy by examining the first fifteen seasons. Guided by the…”
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AGN STORM 2. X. The Origin of the Interband Continuum Delays in Mrk 817 by Netzer, Hagai, Goad, Michael R., Barth, Aaron J., Cackett, Edward M., Horne, Keith, Hu, Chen, Kara, Erin, Korista, Kirk T., Kriss, Gerard A., Lewin, Collin, Montano, John, Arav, Nahum, Behar, Ehud, Brotherton, Michael S., Chelouche, Doron, De Rosa, Gisella, Dalla Bontà, Elena, Dehghanian, Maryam, Ferland, Gary J., Fian, Carina, Homayouni, Yasaman, Ilić, Dragana, Kaspi, Shai, Kovačević, Andjelka B., Landt, Hermine, Č. Popović, Luka, Storchi-Bergmann, Thaisa, Wang, Jian-Min, Zaidouni, Fatima

“…Abstract The local ( z = 0.0315) active galactic nucleus (AGN) Mrk 817 was monitored over more than 500 days with space-borne and ground-based instruments as…”
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Space Telescope and Optical Reverberation Mapping Project. XI. Disk-wind Characteristics and Contributions to the Very Broad Emission Lines of NGC 5548 by Dehghanian, M., Ferland, G. J., Kriss, G. A., Peterson, B. M., Korista, K. T., Goad, M. R., Chatzikos, M., Guzmán, F., Rosa, G. De, Mehdipour, M., Kaastra, J., Mathur, S., Vestergaard, M., Proga, D., Waters, T., Bentz, M. C., Bisogni, S., Brandt, W. N., Bontà, E. Dalla, Fausnaugh, M. M., Gelbord, J. M., Horne, Keith, McHardy, I. M., Pogge, R. W., Starkey, D. A.

“…In 2014 the NGC 5548 Space Telescope and Optical Reverberation Mapping campaign discovered a two-month anomaly when variations in the absorption and emission…”
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Psychological Reactance Theory and COVID-19 Vaccine Mandates: The Roles of Threat Magnitude and Direction of Threat by Kriss, Lauren A., Quick, Brian L., Rains, Stephen A., Barbati, Juliana L.

“…The current study examines psychological reactance theory (PRT), focusing on the role of threat directness and threat magnitude in the context of a COVID-19…”
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A Composite Extreme-Ultraviolet QSO Spectrum from FUSE by Scott, Jennifer E, Kriss, Gerard A, Brotherton, Michael, Green, Richard F, Hutchings, John, Shull, J. Michael, Zheng, Wei

“…The Far Ultraviolet Spectroscopic Explorer (FUSE) has surveyed a large sample (>100) of active galactic nuclei (AGNs) in the low-redshift universe (z < 1). Its…”
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The ionized absorber and nuclear environment of IRAS 13349+2438: multi-wavelength insights from coordinated Chandra HETGS, HST STIS, HET and Spitzer IRS by Lee, Julia C., Kriss, Gerard A., Chakravorty, Susmita, Rahoui, Farid, Young, Andrew J., Brandt, William N., Hines, Dean C., Ogle, Patrick M., Reynolds, Christopher S.

“…We present results from a multi-wavelength infrared (IR)-to-X-ray campaign of the infrared bright (but highly optical-ultraviolet extincted) quasi-stellar…”
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X-Ray/Ultraviolet Campaign on the Mrk 279 AGN Outflow: Constraining Inhomogeneous Absorber Models by Arav, Nahum, Kaastra, Jelle, Kriss, Gerard A, Korista, Kirk T, Gabel, Jack, Proga, Daniel

“…We investigate the applicability of inhomogeneous absorber models in the formation of active galactic nucleus outflow absorption troughs. The models we explore…”
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Characterizing Heterogeneity of Disease Incidence in a Spatial Hierarchy: A Case Study from a Decade of Observations of Fusarium Head Blight of Wheat by KRISS, A. B, PAUL, P. A, MADDEN, L. V

“…A multilevel analysis of heterogeneity of disease incidence was conducted based on observations of Fusarium head blight (caused by Fusarium graminearum) in…”
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Variability in Fusarium Head Blight Epidemics in Relation to Global Climate Fluctuations as Represented by the El Niño-Southern Oscillation and Other Atmospheric Patterns by KRISS, A. B, PAUL, P. A, MADDEN, L. V

“…Cross-spectral analysis was used to characterize the relationship between climate variability, represented by atmospheric patterns, and annual fluctuations of…”
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Quasars and the Big Blue Bump by Shang, Zhaohui, Brotherton, Michael S, Green, Richard F, Kriss, Gerard A, Scott, Jennifer, Quijano, Jessica Kim, Blaes, Omer, Hubeny, Ivan, Hutchings, John, Kaiser, Mary Elizabeth, Koratkar, Anuradha, Oegerle, William, Zheng, Wei

“…We investigate the ultraviolet-to-optical spectral energy distributions of 17 active galactic nuclei (AGNs) using quasi-simultaneous spectrophotometry spanning…”
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The Ionized Gas and Nuclear Environment in NGC 3783. V. Variability and Modeling of the Intrinsic Ultraviolet Absorption by Gabel, Jack R, Kraemer, Steven B, Crenshaw, D. Michael, George, Ian M, Brandt, W. N, Hamann, Frederick W, Kaiser, Mary Elizabeth, Kaspi, Shai, Kriss, Gerard A, Mathur, Smita, Nandra, Kirpal, Netzer, Hagai, Peterson, Bradley M, Shields, Joseph C, Turner, T. J, Zheng, Wei

“…We present results on the location, physical conditions, and geometry of the outflow in the Seyfert 1 galaxy NGC 3783 from a study of the variable intrinsic UV…”
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Warm Absorbers in Active Galactic Nuclei: A Multitemperature Wind by Krolik, Julian H, Kriss, Gerard A

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