Zobrazeno 1 - 10
of 182
pro vyhledávání: '"Korista, Kirk"'
Autor:
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, Bonta, Elena Dalla, Dehghanian, Maryam, Ferland, Gary J., Fian, Carina, Homayouni, Yasaman, Ilic, Dragana, Kaspi, Shai, Kovacevic, Andjelka B., Landt, Hermine, Popovic, Luka C., Storchi-Bergmann, Thaisa, Wang, Jian-Min, Zaidouni, Fatima
The local (z=0.0315) AGN Mrk 817, was monitored over more than 500 days with space-borne and ground-based instruments as part of a large international campaign AGN STORM 2. Here, we present a comprehensive analysis of the broad-band continuum variati
Externí odkaz:
http://arxiv.org/abs/2410.02652
Autor:
Lewin, Collin, Kara, Erin, Barth, Aaron J., Cackett, Edward M., De Rosa, Gisella, Homayouni, Yasaman, Horne, Keith, Kriss, Gerard A., Landt, Hermine, Gelbord, Jonathan, Montano, John, Arav, Nahum, Bentz, Misty C., Boizelle, Benjamin D., Bontà, Elena Dalla, Brotherton, Michael S., Dehghanian, Maryam, Ferland, Gary J., Fian, Carina, Goad, Michael R., Santisteban, Juan V. Hernández, Ilić, Dragana, Kaastra, Jelle, Kaspi, Shai, Korista, Kirk T., Kosec, Peter, Kovačević, Andjelka, Mehdipour, Missagh, Miller, Jake A., Netzer, Hagai, Neustadt, Jack M. M., Panagiotou, Christos, Partington, Ethan R., Popović, Luka Č., Sanmartim, David, Vestergaard, Marianne, Ward, Martin J., Zaidouni, Fatima
Publikováno v:
ApJ 974 271 (2024)
X-ray reverberation mapping is a powerful technique for probing the innermost accretion disk, whereas continuum reverberation mapping in the UV, optical, and infrared (UVOIR) reveals reprocessing by the rest of the accretion disk and broad-line regio
Externí odkaz:
http://arxiv.org/abs/2409.09115
Autor:
Dehghanian, Maryam, Arav, Nahum, Kriss, Gerard A., Mehdipour, Missagh, Byun, Doyee, Walker, Gwen, Sharma, Mayank, Barth, Aaron J., Bentz, Misty C., Boizelle, Benjamin D., Brotherton, Michael S., Cackett, Edward M., Bonta, Elena Dalla, De Rosa, Gisella, Ferland, Gary J., Fian, Carina, Filippenko, Alexei V., Gelbord, Jonathan, Goad, Michael R., Horne, Keith, Homayouni, Yasaman, Ilic, Dragana, Joner, Michael D., Kara, Erin A., Kaspi, Shai, Kochanek, Christopher S., Korista, Kirk T., Kosec, Peter, Kovacevic, Andjelka B., Landt, Hermine, Lewin, Collin, Partington, Ethan R., Popovic, Luka C., Proga, Daniel, Rogantini, Daniele, Siebert, Matthew R., Storchi-Bergmann, Thaisa, Vestergaard, Marianne, Waters, Timothy, Wang, Jian-Min, Zaidouni, Fatima, Zu, Ying
We observed the Seyfert 1 galaxy Mrk817 during an intensive multi-wavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in HST/COS spectra, both during the campaign and in other epoc
Externí odkaz:
http://arxiv.org/abs/2407.04164
Autor:
Neustadt, Jack M. M., Kochanek, Christopher S., Montano, John, Gelbord, Jonathan, Barth, Aaron J., De Rosa, Gisella, Kriss, Gerard A., Cackett, Edward M., Horne, Keith, Kara, Erin A., Landt, Hermine, Netzer, Hagai, Arav, Nahum, Bentz, Misty C., Bonta, Elena Dalla, Dehghanian, Maryam, Du, Pu, Edelson, Rick, Ferland, Gary J., Fian, Carina, Fischer, Travis, Goad, Michael R., Buitrago, Diego H. Gonzalez, Gorjian, Varoujan, Grier, Catherine J., Hall, Patrick B., Homayouni, Y., Hu, Chen, Ilic, Dragana, Joner, Michael D., Kaastra, Jelle, Kaspi, Shai, Korista, Kirk T., Kovacevic, Andjelka B., Lewin, Collin, Li, Yan-Rong, McHardy, Ian M., Mehdipour, Missagh, Miller, Jake A., Panagiotou, Christos, Partington, Ethan, Plesha, Rachel, Pogge, Richard W., Popovic, Luka C., Proga, Daniel, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Signorini, Matilde, Vestergaard, Marianne, Zaidouni, Fatima, Zu, Ying
We fit the UV/optical lightcurves of the Seyfert 1 galaxy Mrk 817 to produce maps of the accretion disk temperature fluctuations $\delta T$ resolved in time and radius. The $\delta T$ maps are dominated by coherent radial structures that move slowly
Externí odkaz:
http://arxiv.org/abs/2310.01497
Autor:
Homayouni, Y., Kriss, Gerard A., De Rosa, Gisella, Plesha, Rachel, Cackett, Edward M., Goad, Michael R., Korista, Kirk T., Horne, Keith, Fischer, Travis, Waters, Tim, Barth, Aaron J., Kara, Erin A., Landt, Hermine, Arav, Nahum, Boizelle, Benjamin D., Bentz, Misty C., Brotherton, Michael S., Chelouche, Doron, Bonta, Elena Dalla, Dehghanian, Maryam, Du, Pu, Ferland, Gary J., Fian, Carina, Gelbord, Jonathan, Grier, Catherine J., Hall, Patrick B., Hu, Chen, Ilic, Dragana, Joner, Michael D., Kaastra, Jelle, Kaspi, Shai, Kovacevic, Andjelka B., Kynoch, Daniel, Li, Yan-Rong, Mehdipour, Missagh, Miller, Jake A., Mitchell, Jake, Montano, John, Netzer, Hagai, Neustadt, J. M. M., Partington, Ethan, Popovic, Luka C., Proga, Daniel, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Treu, Tommaso, Vestergaard, Marianne, Wang, Jian-Min, Ward, Martin J., Zaidouni, Fatima, Zu, Ying
An intensive reverberation mapping campaign on the Seyfert 1 galaxy Mrk817 using the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) revealed significant variations in the response of the broad UV emission lines to fluctuations
Externí odkaz:
http://arxiv.org/abs/2308.00742
Autor:
Miller, Jake A., Cackett, Edward M., Goad, Michael R., Horne, Keith, Barth, Aaron J., Romero-Colmenero, Encarni, Fausnaugh, Michael, Gelbord, Jonathan, Korista, Kirk T., Landt, Hermine, Treu, Tommaso, Winkler, Hartmut
Continuum reverberation mapping probes the sizescale of the optical continuum-emitting region in active galactic nuclei (AGN). Through 3 years of multiwavelength photometric monitoring in the optical with robotic observatories, we perform continuum r
Externí odkaz:
http://arxiv.org/abs/2307.02630
Autor:
Cackett, Edward M., Gelbord, Jonathan, Barth, Aaron J., De Rosa, Gisella, Edelson, Rick, Goad, Michael R., Homayouni, Yasaman, Horne, Keith, Kara, Erin A., Kriss, Gerard A., Korista, Kirk T., Landt, Hermine, Plesha, Rachel, Arav, Nahum, Bentz, Misty C., Boizelle, Benjamin D., Bonta, Elena Dalla, Dehghanian, Maryam, Donnan, Fergus, Du, Pu, Ferland, Gary J., Fian, Carina, Filippenko, Alexei V., Buitrago, Diego H. Gonzalez, Grier, Catherine J., Hall, Patrick B., Hu, Chen, Ilic, Dragana, Kaastra, Jelle, Kaspi, Shai, Kochanek, Christopher S., Kovacevic, Andjelka B., Kynoch, Daniel, Li, Yan-Rong, McLane, Jacob N., Mehdipour, Missagh, Miller, Jake A., Montano, John, Netzer, Hagai, Panagiotou, Christos, Partington, Ethan, Popovic, Luka C., Proga, Daniel, Rogantini, Daniele, Sanmartim, David, Siebert, Matthew R., Storchi-Bergmann, Thaisa, Vestergaard, Marianne, Wang, Jian-Min, Waters, Tim, Zaidouni, Fatima
The AGN STORM 2 campaign is a large, multiwavelength reverberation mapping project designed to trace out the structure of Mrk 817 from the inner accretion disk to the broad emission line region and out to the dusty torus. As part of this campaign, Sw
Externí odkaz:
http://arxiv.org/abs/2306.17663
Autor:
Partington, Ethan R., Cackett, Edward M., Kara, Erin, Kriss, Gerard A., Barth, Aaron J., De Rosa, Gisella, Homayouni, Y., Horne, Keith, Landt, Hermine, Zoghbi, Abderahmen, Edelson, Rick, Arav, Nahum, Boizelle, Benjamin D., Bentz, Misty C., Brotherton, Michael S., Byun, Doyee, Bonta, Elena Dalla, Dehghanian, Maryam, Du, Pu, Fian, Carina, Filippenko, Alexei V., Gelbord, Jonathan, Goad, Michael R., Buitrago, Diego H. Gonzalez, Grier, Catherine J., Hall, Patrick B., Hu, Chen, Ilic, Dragana, Joner, Michael D., Kochanek, Shai Kaspi Christopher S., Korista, Kirk T., Kovacevic, Andjelka B., Kynoch, Daniel, McLane, Jacob N., Mehdipour, Missagh, Panagiotou, Jake A. Miller Christos, Plesha, Rachel, Popovic, Luka C., Proga, Daniel, Rogantini, Daniele, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Vestergaard, Marianne, Ward, Martin J., Waters, Tim, Zaidouni, Fatima
The AGN STORM 2 collaboration targeted the Seyfert 1 galaxy Mrk 817 for a year-long multiwavelength, coordinated reverberation mapping campaign including HST, Swift, XMM-Newton, NICER, and ground-based observatories. Early observations with NICER and
Externí odkaz:
http://arxiv.org/abs/2302.12896
Autor:
Homayouni, Y., De Rosa, Gisella, Plesha, Rachel, Kriss, Gerard A., Barth, Aaron J., Cackett, Edward M., Horne, Keith, Kara, Erin A., Landt, Hermine, Arav, Nahum, Boizelle, Benjamin D., Bentz, Misty C., Brink, Thomas G., Brotherton, Michael S., Chelouche, Doron, Bonta, Elena Dalla, Dehghanian, Maryam, Du, Pu, Ferland, Gary J., Ferrarese, Laura, Fian, Carina, Filippenko, Alexei V., Fischer, Travis, Foley, Ryan J., Gelbord, Jonathan, Goad, Michael R., Buitrago, Diego H. Gonzalez, Gorjian, Varoujan, Grier, Catherine J., Hall, Patrick B., Santisteban, Juan V. Hernandez, Hu, Chen, Ilic, Dragana, Joner, Michael D., Kaastra, Jelle, Kaspi, Shai, Kochanek, Christopher S., Korista, Kirk T., Kovacevic, Andjelka B., Kynoch, Daniel, Li, Yan-Rong, McHardy, Ian M., McLane, Jacob N., Mehdipour, Missagh, Miller, Jake A., Mitchell, Jake, Montano, John, Netzer, Hagai, Panagiotou, Christos, Partington, Ethan, Pogge, Richard W., Popovic, Luka C., Proga, Daniel, Rogantini, Daniele, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Treu, Tommaso, Vestergaard, Marianne, Wang, Jian-Min, Ward, Martin J., Waters, Tim, Williams, Peter R., Zaidouni, Fatima, Zu, Ying
We present reverberation mapping measurements for the prominent ultraviolet broad emission lines of the active galactic nucleus Mrk817 using 165 spectra obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope. Our ultraviolet obse
Externí odkaz:
http://arxiv.org/abs/2302.11587
The Paschen Jump as a Diagnostic of the Diffuse Nebular Continuum Emission in Active Galactic Nuclei
Autor:
Guo, Hengxiao, Barth, Aaron J., Korista, Kirk T., Goad, Michael R., Cackett, Edward M., Bentz, Misty C., Brandt, William N., Gonzalez-Buitrago, D., Ferland, Gary J., Gelbord, Jonathan M., Ho, Luis C., Horne, Keith, Joner, Michael D., Kriss, Gerard A., McHardy, Ian, Mehdipour, Missagh, Park, Daeseong, Remigio, Raymond, U, Vivian, Vestergaard, Marianne
Photoionization modeling of active galactic nuclei (AGN) predicts that diffuse continuum (DC) emission from the broad-line region makes a substantial contribution to the total continuum emission from ultraviolet through near-infrared wavelengths. Evi
Externí odkaz:
http://arxiv.org/abs/2111.03090