Zobrazeno 1 - 10
of 4 210
pro vyhledávání: '"Alexander, David A."'
Autor:
Boorman, Peter G., Gandhi, Poshak, Buchner, Johannes, Stern, Daniel, Ricci, Claudio, Baloković, Mislav, Asmus, Daniel, Harrison, Fiona A., Svoboda, Jiří, Greenwell, Claire, Koss, Michael, Alexander, David M., Annuar, Adlyka, Bauer, Franz, Brandt, William N., Brightman, Murray, Panessa, Francesca, Chen, Chien-Ting J., Farrah, Duncan, Forster, Karl, Grefenstette, Brian, Hönig, Sebastian F., Hill, Adam B., Kammoun, Elias, Lansbury, George, Lanz, Lauranne, LaMassa, Stephanie, Madsen, Kristin, Marchesi, Stefano, Middleton, Matthew, Mingo, Beatriz, Parker, Michael L., Treister, Ezequiel, Ueda, Yoshihiro, Urry, C. Megan, Zappacosta, Luca
Hard X-ray-selected samples of Active Galactic Nuclei (AGN) provide one of the cleanest views of supermassive black hole accretion, but are biased against objects obscured by Compton-thick gas column densities of $N_{\rm H}$ $>$ 10$^{24}$ cm$^{-2}$.
Externí odkaz:
http://arxiv.org/abs/2410.07339
Autor:
Mann, Rochelle A., Hossen, Md. Emran, Withrow, Alexander David McGuire, Burton, Jack Thomas, Blythe, Sean M, Evett, Camryn Grace
Colorectal cancer (CRC) remains a leading cause of cancer-related mortality worldwide, highlighting the urgent need for advanced therapeutic strategies. Nanoparticle-based drug delivery systems have emerged as a promising approach to improve the spec
Externí odkaz:
http://arxiv.org/abs/2409.18809
Hydroxyapatite nanoparticles (HANs) have emerged as a promising candidate for targeted drug delivery in the treatment of colon cancer, a disease that remains one of the leading causes of cancer-related deaths globally. In this study, we synthesized a
Externí odkaz:
http://arxiv.org/abs/2409.18192
Autor:
Guo, Wei-Jian, Zou, Hu, Greenwell, Claire L., Alexander, David M., Fawcett, Victoria A., Pan, Zhiwei, Siudek, Malgorzata, Aguilar, Jessica Nicole, Ahlen, Steven, Brooks, David, Claybaugh, Todd, Dawson, Kyle, De La Macorra, Axel, Doel, Peter, Font-Ribera, Andreu, Gaztanaga, Enrique, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Kehoe, Robert, Kisner, Theodore, Landriau, Martin, Guillou, Laurent Le, Manera, Marc, Meisner, Aaron, Mique, Ramon, Moustakas, John, Prada, Francisco, Rossi, Graziano, Sanchez, Eusebio, Schubnell, Michael, Sprayberry, David, Sui, Jipeng, Tarle, Gregory, Weaver, Benjamin Alan, Xiao, Yun-Ao, Zou, Siwei
We present the identification of changing-look active galactic nuclei (CL-AGNs) from the Dark Energy Spectroscopic Instrument First Data Release and Sloan Digital Sky Survey Data Release 16 at z \leq 0.9. To confirm the CL-AGNs, we utilize spectral f
Externí odkaz:
http://arxiv.org/abs/2408.00402
Coupling between relativistic jets launched by accreting supermassive black holes and the surrounding gaseous media is a vital ingredient in galaxy evolution models. To constrain the environments in which this feedback takes place over cosmic time, w
Externí odkaz:
http://arxiv.org/abs/2407.18744
Autor:
Goldie, Alexander David, Lu, Chris, Jackson, Matthew Thomas, Whiteson, Shimon, Foerster, Jakob Nicolaus
While reinforcement learning (RL) holds great potential for decision making in the real world, it suffers from a number of unique difficulties which often need specific consideration. In particular: it is highly non-stationary; suffers from high degr
Externí odkaz:
http://arxiv.org/abs/2407.07082
Autor:
Acharya, Nischal, Bonoli, Silvia, Salvato, Mara, Cortesi, Ariana, Delgado, M. Rosa González, Lopez, Ivan Ezequiel, Marquez, Isabel, Martínez-Solaeche, Ginés, Abdurro'uf, Alexander, David, Brusa, Marcella, Chaves-Montero, Jonás, Ontiveros, Juan Antonio Fernández, Laloux, Brivael, Lapi, Andrea, Mountrichas, George, Almeida, Cristina Ramos, Martín, Julio Esteban Rodríguez, Shankar, Francesco, Soria, Roberto, Vilchez, M. José, Abramo, Raul, Alcaniz, Jailson, Benitez, Narciso, Carneiro, Saulo, Cenarro, Javier, Cristóbal-Hornillos, David, Dupke, Renato, Ederoclite, Alessandro, Hernán-Caballero, A., López-Sanjuan, Carlos, Marín-Franch, Antonio, de Oliveira, Caludia Mendes, Moles, Mariano, Sodré Jr., Laerte, Taylor, Keith, Varela, Jesús, Ramió, Héctor Vázquez
We study the impact of black hole nuclear activity on both the global and radial star formation rate (SFR) profiles in X-ray-selected active galactic nuclei (AGN) in the field of miniJPAS, the precursor of the much wider J-PAS project. Our sample inc
Externí odkaz:
http://arxiv.org/abs/2405.06010
Autor:
Greenwell, Claire L., Klindt, Lizelke, Lansbury, George B., Rosario, David J., Alexander, David M., Aird, James, Stern, Daniel, Forster, Karl, Koss, Michael J., Bauer, Franz E., Ricci, Claudio, Tomsick, John, Brandt, William N., Connor, Thomas, Boorman, Peter G., Annuar, Adlyka, Ballantyne, David R., Chen, Chien-Ting, Civano, Francesca, Comastri, Andrea, Fawcett, Victoria A., Fornasini, Francesca M., Gandhi, Poshak, Harrison, Fiona, Heida, Marianne, Hickox, Ryan, Kammoun, Elias S., Lanz, Lauranne, Marchesi, Stefano, Noirot, Gaël, Romero-Colmenero, Encarni, Treister, Ezequiel, Urry, C. Megan, Väisänen, Petri, van Soelen, Brian
We present a catalog of hard X-ray serendipitous sources detected in the first 80 months of observations by the Nuclear Spectroscopic Telescope Array (NuSTAR). The NuSTAR serendipitous survey 80-month (NSS80) catalog has an unprecedented $\sim$ 62 Ms
Externí odkaz:
http://arxiv.org/abs/2404.17637
Autor:
Laloux, Brivael, Georgakakis, Antonis, Alexander, David M., Buchner, Johannes, Andonie, Carolina, Acharya, Nischal, Aird, James, Alonso-Tetilla, Alba V., Bongiorno, Angela, Hickox, Ryan C., Lapi, Andrea, Musiimenta, Blessing, Almeida, Cristina Ramos, Villforth, Carolin, Shankar, Francesco
Publikováno v:
MNRAS 532 (2024) 3459-3479
We adopt a Bayesian X-ray spectral approach to investigate the accretion properties of unobscured ($20<\log(N_{\rm H}/{\rm cm}^{-2}<22$) and obscured ($22< \log(N_{\rm H}/{\rm cm}^{-2}<24$) active galactic nuclei (AGN) to shed light on the orientatio
Externí odkaz:
http://arxiv.org/abs/2403.07109
Autor:
Musiimenta, Blessing, Speranza, Giovanna, Urrutia, Tanya, Brusa, Marcella, Almeida, Cristina Ramos, Perna, Michele, López, Ivàn Ezequiel, Alexander, David M., Laloux, Brivael, Shankar, Francesco, Lapi, Andrea, Salvato, Mara, Toba, Yoshiki, Andonie, Carolina, Rodríguez, Ivàn Munoz
Publikováno v:
A&A 687, A111 (2024)
Evolutionary models suggest that the initial growth phases of active galactic nuclei (AGN) are dust-enshrouded, and characterised by jet/wind outflows that should gradually clear the interstellar medium (ISM) in the host by heating and/or expelling t
Externí odkaz:
http://arxiv.org/abs/2401.17299