Zobrazeno 1 - 10
of 2 183
pro vyhledávání: '"Stern, Daniel"'
Autor:
Gupta, Kriti K., Ricci, Claudio, Temple, Matthew J., Tortosa, Alessia, Koss, Michael J., Assef, Roberto J., Bauer, Franz E., Mushotzy, Richard, Ricci, Federica, Ueda, Yoshihiro, Rojas, Alejandra F., Trakhtenbrot, Benny, Chang, Chin-Shin, Oh, Kyuseok, Li, Ruancun, Kawamuro, Taiki, Diaz, Yaherlyn, Powell, Meredith C., Stern, Daniel, Urry, C. Megan, Harrison, Fiona, Cenko, Brad
We present one of the largest multiwavelength studies of simultaneous optical-to-X-ray spectral energy distributions (SEDs) of unobscured active galactic nuclei (AGN) in the local Universe. Using a representative sample of hard-X-ray-selected AGN fro
Externí odkaz:
http://arxiv.org/abs/2409.12239
Autor:
Hyman, Sóley Ó., Wilkes, Belinda J., Willner, S. P., Kuraszkiewicz, Joanna, Azadi, Mojegan, Worrall, D. M., Foord, Adi, Vegetti, Simona, Ashby, Matthew L. N., Birkinshaw, Mark, Fassnacht, Christopher, Haas, Martin, Stern, Daniel
The 3C 220.3 system is a rare case of a foreground narrow-line radio galaxy ("galaxy A," $z_A = 0.6850$) lensing a background submillimeter galaxy ($z_{{\rm SMG1}} = 2.221$). New spectra from MMT/Binospec confirm that the companion galaxy ("galaxy B"
Externí odkaz:
http://arxiv.org/abs/2407.21020
Autor:
Banados, Eduardo, Momjian, Emmanuel, Connor, Thomas, Belladitta, Silvia, Decarli, Roberto, Mazzucchelli, Chiara, Venemans, Bram P., Walter, Fabian, Wang, Feige, Xie, Zhang-Liang, Barth, Aaron J., Eilers, Anna-Christina, Fan, Xiaohui, Khusanova, Yana, Schindler, Jan-Torge, Stern, Daniel, Yang, Jinyi, Andika, Irham Taufik, Carilli, Chris, Farina, Emanuele P., Fabian, Andrew, Hennawi, Joseph F., Pensabene, Antonio, Rojas-Ruiz, Sofia
Relativistic jets are thought to play a crucial role in the formation of massive galaxies and supermassive black holes. Here we report multi-wavelength and multi-epoch observations of the quasar VLASSJ0410-0139 at redshift z=7, powered by a 7e8 solar
Externí odkaz:
http://arxiv.org/abs/2407.07236
Autor:
Wang, Yihan, Graham, Matthew J., Ford, K. E. Saavik, McKernan, Barry, Ryu, Taeho, Stern, Daniel
The phenomenon of changing-look (CL) behavior in active galactic nuclei (AGN) is characterized by dramatic changes in luminosity and/or emission line profiles over relatively short periods, ranging from months to years. The origin of CL-AGNs remains
Externí odkaz:
http://arxiv.org/abs/2406.12096
Autor:
Li, Guodong, Assef, Roberto J., Tsai, Chao-Wei, Wu, Jingwen, Eisenhardt, Peter R. M., Stern, Daniel, Díaz-Santos, Tanio, Blain, Andrew W., Jun, Hyunsung D., Arandá, Roman Fernández, Zewdie, Dejene
Hot Dust-Obscured Galaxies (Hot DOGs) are a rare population of hyper-luminous infrared galaxies discovered by the WISE mission. Despite the significant obscuration of the AGN by dust in these systems, pronounced broad and blue-shifted emission lines
Externí odkaz:
http://arxiv.org/abs/2405.20479
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:
Marocco, Federico, Kirkpatrick, J. Davy, Schneider, Adam C., Meisner, Aaron M., Popinchalk, Mark, Gelino, Christopher R., Faherty, Jacqueline K., Burgasser, Adam J., Caselden, Dan, Gagné, Jonathan, Aganze, Christian, Bardalez-Gagliuffi, Daniella C., Casewell, Sarah L., Hsu, Chih-Chun, Kiman, Rocio, Eisenhardt, Peter R. M., Kuchner, Marc J., Stern, Daniel, Gramaize, Léopold, Sainio, Arttu, Bickle, Thomas P., Rothermich, Austin, Pendrill, William, Thévenot, Melina, Kabatnik, Martin, Colombo, Giovanni, Higashimura, Hiro, Kiwy, Frank, Marchese, Elijah J., Andersen, Nikolaj Stevnbak, Tanner, Christopher, Walla, Jim, Wedracki, Zbigniew, Collaboration, The Backyard Worlds
We present the discovery of 13 new widely separated T dwarf companions to M dwarf primaries, identified using WISE/NEOWISE data by the CatWISE and Backyard Worlds: Planet 9 projects. This sample represents a $\sim$60% increase in the number of known
Externí odkaz:
http://arxiv.org/abs/2404.14324
Autor:
Thongkham, Khunanon, Gonzalez, Anthony H., Brodwin, Mark, Trudeau, Ariane, Saha, Ripon, Eisenhardt, Peter, Stanford, S. A., Moravec, Emily, Connor, Thomas, Stern, Daniel
The Massive and Distant Clusters of WISE Survey 2 (MaDCoWS2) is a new survey designed as the successor of the original MaDCoWS survey. MaDCoWS2 improves upon its predecessor by using deeper optical and infrared data and a more powerful detection algo
Externí odkaz:
http://arxiv.org/abs/2403.16976
Autor:
Earnshaw, Hannah P, Bachetti, Matteo, Brightman, Murray, Fürst, Felix, Harrison, Fiona A., Middleton, Matthew, Ludlam, Renee, Pike, Sean N., Stern, Daniel, Walton, Dominic J.
We observed the nearby and relatively understudied ultraluminous X-ray source (ULX) NGC 4190 ULX-1 jointly with NICER and NuSTAR to investigate its broadband spectrum, timing properties, and spectral variation over time. We found NGC 4190 ULX-1 to ha
Externí odkaz:
http://arxiv.org/abs/2403.13973
In 1970, Lawson solved the topological realization problem for minimal surfaces in the sphere, showing that any closed orientable surface can be minimally embedded in $\mathbb{S}^3$. The analogous problem for surfaces with boundary was posed by Frase
Externí odkaz:
http://arxiv.org/abs/2402.13121