Zobrazeno 1 - 10
of 4 497
pro vyhledávání: '"V Hernández"'
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
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:
Mitchell, J. A. J., Ward, M. J., Kynoch, D., Santisteban, J. V. Hernández, Horne, K., Pott, J. -U., Esser, J., Mercatoris, P., Packham, C., Ferland, G. J., Lawrence, A., Fischer, T., Barth, A. J., Villforth, C., Winkler, H.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 529, Issue 4, April 2024, Pages 4824 - 4839
Near IR spectroscopic reverberation of Active Galactic Nuclei (AGN) potentially allows the infrared (IR) broad line region (BLR) to be reverberated alongside the disc and dust continua, while the spectra can also reveal details of dust astro-chemistr
Externí odkaz:
http://arxiv.org/abs/2404.06930
Autor:
Liu, Tingting, Edelson, Rick, Santisteban, Juan V. Hernández, Kara, Erin, Montano, John, Gelbord, Jonathan, Horne, Keith, Barth, Aaron J., Cackett, Edward M., Kaplan, David L.
We present an intensive multiwavelength monitoring campaign of the quasar PG 1302$-$102 with Swift and the Las Cumbres Observatory network telescopes. At $z\sim0.3$, it tests the limits of the reverberation mapping (RM) technique in probing the accre
Externí odkaz:
http://arxiv.org/abs/2401.14466
Autor:
Eijnden, J. van den, Escorial, A. Rouco, Alfonso-Garzón, J., Miller-Jones, J. C. A., Kretschmar, P., Fürst, F., Degenaar, N., Santisteban, J. V. Hernández, Sivakoff, G. R., Russell, T. D., Wijnands, R.
LS V +44 17 is a persistent Be/X-ray binary (BeXRB) that displayed a bright, double-peaked period of X-ray activity in late 2022/early 2023. We present a radio monitoring campaign of this outburst using the Very Large Array. Radio emission was detect
Externí odkaz:
http://arxiv.org/abs/2311.00631
Learning from demonstration is one of the most promising methods to counteract the challenging long-term trends in repetitive industrial assembly. It offers not only a programming technique that is accessible to workers on the shop floor, reducing th
Externí odkaz:
http://arxiv.org/abs/2310.00276
Autor:
Domček, V., Santisteban, J. V. Hernández, Chiotellis, A., Boumis, P., Vink, J., Akras, S., Souropanis, D., Zhou, P., de Burgos, A.
We present the first optical study of the supernova remnant (SNR) G7.7-3.7, with the aim of determining its evolutionary phase since it has been suggested to be the remnant of SN 386 AD. We obtained narrow-band images in the filters H$\alpha$ + [NII]
Externí odkaz:
http://arxiv.org/abs/2309.01768
Autor:
Fijma, S., Segura, N. Castro, Degenaar, N., Knigge, C., Higginbottom, N., Santisteban, J. V. Hernández, Maccarone, T. J.
Accreting low mass X-ray binaries (LMXBs) are capable of launching powerful outflows such as accretion disc winds. In disc winds, vast amounts of material can be carried away, potentially greatly impacting the binary and its environment. Previous stu
Externí odkaz:
http://arxiv.org/abs/2305.10793
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
Autor:
Donnan, Fergus R., Santisteban, Juan V. Hernández, Horne, Keith, Hu, Chen, Du, Pu, Li, Yan-Rong, Xiao, Ming, Ho, Luis C., Aceituno, Jesús, Wang, Jian-Min, Guo, Wei-Jian, Yang, Sen, Jiang, Bo-Wei, Yao, Zhu-Heng
We measure the black hole mass and investigate the accretion flow around the local ($z=0.0502$) quasar PG 1119+120. Spectroscopic monitoring with Calar Alto provides H$\beta$ lags and linewidths from which we estimate a black hole mass of $\log \left
Externí odkaz:
http://arxiv.org/abs/2302.09370
Autor:
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, Buitrago, Diego H. Gonzalez, Santisteban, Juan V. Hernandez, 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
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 1 Mrk 335, when it was in an unprecedented low X-ray flux state. Despite dramatic suppression of the
Externí odkaz:
http://arxiv.org/abs/2302.07342