Zobrazeno 1 - 10
of 342
pro vyhledávání: '"Popović, Luka"'
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:
Zaidouni, Fatima, Kara, Erin, Kosec, Peter, Mehdipour, Missagh, Rogantini, Daniele, Kriss, Gerard A., Behar, Ehud, Kaastra, Jelle, Barth, Aaron J., Cackett, Edward M., De Rosa, Gisella, Homayouni, Yasaman, Horne, Keith, Landt, Hermine, Arav, Nahum, Bentz, Misty C., Brotherton, Michael S., Bontà, Elena Dalla, Dehghanian, Maryam, Ferland, Gary J., Fian, Carina, Gelbord, Jonathan, Goad, Michael R., Buitrago, Diego H. González, Grier, Catherine J., Hall, Patrick B., Hu, Chen, Ilić, Dragana, Kaspi, Shai, Kochanek, Christopher S., Kovačević, Andjelka B., Kynoch, Daniel, Lewin, Collin, Montano, John, Netzer, Hagai, Neustadt, Jack M. M., Panagiotou, Christos, Partington, Ethan R., Plesha, Rachel, Popović, Luka Č., Proga, Daniel, Storchi-Bergmann, Thaisa, Sanmartim, David, Siebert, Matthew R., Signorini, Matilde, Vestergaard, Marianne, Waters, Tim, Zu, Ying
We present the results of the XMM-Newton and NuSTAR observations taken as part of the ongoing, intensive multi-wavelength monitoring program of the Seyfert 1 galaxy Mrk 817 by the AGN Space Telescope and Optical Reverberation Mapping 2 (AGN STORM 2)
Externí odkaz:
http://arxiv.org/abs/2406.17061
Autor:
Zuo, Wenwen, Guo, Hengxiao, Sun, Jingbo, Yuan, Qi, Lira, Paulina, Gu, Minfeng, Edwards, Philip G., Gupta, Alok C., Kishore, Shubham, Stevens, Jamie, An, Tao, Cai, Zhen-Yi, Feng, Haicheng, Ho, Luis C., Ilić, Dragana, Kovačević, Andjelka B., Li, ShaSha, Mezcua, Mar, Popović, Luka Č., Sun, Mouyuan, Tripathi, Tushar, U., Vivian, Vince, Oliver, Wang, Jianguo, Wang, Junxian, Wang, Shu, Wu, Xuebing, Zheng, Zhenya
To investigate the short-term variability and determine the size of the optical continuum emitting size of intermediate-mass black holes (IMBHs), we carried out high-cadence, multi-band photometric monitoring of a Seyfert 1 galaxy J0249-0815 across t
Externí odkaz:
http://arxiv.org/abs/2405.11750
We test the potential of Bayesian synthesis of upcoming multi-instrument data to extract orbital parameters and individual light curves of close binary supermassive black holes (CB-SMBH) with subparsec separations. Next generation (ng) interferometer
Externí odkaz:
http://arxiv.org/abs/2404.17435
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
Publikováno v:
A&A 679, A34 (2023)
We explore the influence of optical Fe II quasi-continuum on the measured spectral parameters in the 4150-5500 A range for the spectra of Type 1 active galactic nuclei (AGNs). We assume that the broad line region is composed of two sub-regions: the v
Externí odkaz:
http://arxiv.org/abs/2309.14852
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:
Savić, Đorđe V., Jankov, Isidora, Yu, Weixiang, Petrecca, Vincenzo, Temple, Matthew J., Ni, Qingling, Shirley, Raphael, Kovacevic, Andjelka B., Nikolic, Mladen, Ilic, Dragana, Popovic, Luka C., Paolillo, Maurizio, Panda, Swayamtrupta, Ciprijanovic, Aleksandra, Richards, Gordon T.
Development of the Rubin Observatory Legacy Survey of Space and Time (LSST) includes a series of Data Challenges (DC) arranged by various LSST Scientific Collaborations (SC) that are taking place during the projects preoperational phase. The AGN Scie
Externí odkaz:
http://arxiv.org/abs/2307.04072
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
In this study, a refined approach for multicomponent fitting of active galactic nuclei (AGN) spectra is presented utilizing the newly developed Python code $fantasy$ (fully automated python tool for AGN spectra analysis). AGN spectra are modeled by s
Externí odkaz:
http://arxiv.org/abs/2306.12782