Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Sievers, Jonathan L"'
Autor:
Zhou, Dazhi, Greve, Thomas R., Gullberg, Bitten, Lee, Minju M., Di Mascolo, Luca, Dicker, Simon R., Romero, Charles E., Chapman, Scott C., Chen, Chian-Chou, Cornish, Thomas, Devlin, Mark J., Ho, Luis C., Kohno, Kotaro, Lagos, Claudia D. P., Mason, Brian S., Mroczkowski, Tony, Wagg, Jeff F. W., Wang, Q. Daniel, Wang, Ran, Brinch, Malte., Dannerbauer, Helmut, Jiang, Xue-Jian, Lauritsen, Lynge R. B., Vijayan, Aswin P., Vizgan, David, Wardlow, Julie L., Sarazin, Craig L., Sarmiento, Karen P., Serjeant, Stephen, Bhandarkar, Tanay A., Haridas, Saianeesh K., Moravec, Emily, Orlowski-Scherer, John, Sievers, Jonathan L. R., Tanaka, Ichi, Wang, Yu-Jan, Zeballos, Milagros, Laza-Ramos, Andres, Liu, Yuanqi, Hassan, Mohd Shaiful Rizal, Jwel, Abdul Kadir Md, Nazri, Affan Adly, Lim, Ming-Kang, Ibrahim, Ungku Ferwani Salwa Ungku
High-redshift radio(-loud) galaxies (H$z$RGs) are massive galaxies with powerful radio-loud active galactic nuclei (AGNs) and serve as beacons for protocluster identification. However, the interplay between H$z$RGs and the large-scale environment rem
Externí odkaz:
http://arxiv.org/abs/2408.02177
Autor:
Monsalve, Raul A., Bye, Christian H., Sievers, Jonathan L., Bidula, Vadym, Bustos, Ricardo, Chiang, H. Cynthia, Guo, Xinze, Hendricksen, Ian, McGee, Francis, Mena, F. Patricio, Prabhakar, Garima, Restrepo, Oscar, Thyagarajan, Nithyanandan
Publikováno v:
2024, ApJ, 961, 56
The Mapper of the IGM Spin Temperature (MIST) is a new ground-based, single-antenna, radio experiment attempting to detect the global 21 cm signal from the Dark Ages and Cosmic Dawn. A significant challenge in this measurement is the frequency-depend
Externí odkaz:
http://arxiv.org/abs/2310.07741
High fidelity radio interferometric data calibration that minimises spurious spectral structure in the calibrated data is essential in astrophysical applications, such as 21 cm cosmology, which rely on knowledge of the relative spectral smoothness of
Externí odkaz:
http://arxiv.org/abs/2206.13554
In a companion paper, we presented BayesCal, a mathematical formalism for mitigating sky-model incompleteness in interferometric calibration. In this paper, we demonstrate the use of BayesCal to calibrate the degenerate gain parameters of full-Stokes
Externí odkaz:
http://arxiv.org/abs/2206.13553
Autor:
Gogo, Tamirat G., Ma, Yin-Zhe, Kittiwisit, Piyanat, Sievers, Jonathan L., Parsons, Aaron R., Pober, Jonathan C., Jacobs, Daniel C., Cheng, Carina, Kolopanis, Matthew, Liu, Adrian, Kohn, Saul A., Aguirre, James E., Ali, Zaki S., Bernardi, Gianni, Bradley, Richard F., DeBoer, David R., Dexter, Matthew R., Dillon, Joshua S., Klima, Pat, MacMahon, David H. E., Moore, David F., Nunhokee, Chuneeta D., Walbrugh, William P., Walker, Andre
Observation of redshifted 21-cm signal from the Epoch of Reionization (EoR) is challenging due to contamination from the bright foreground sources that exceed the signal by several orders of magnitude. The removal of this very high foreground relies
Externí odkaz:
http://arxiv.org/abs/2112.01083
Autor:
Crichton, Devin, Aich, Moumita, Amara, Adam, Bandura, Kevin, Bassett, Bruce A., Bengaly, Carlos, Berner, Pascale, Bhatporia, Shruti, Bucher, Martin, Chang, Tzu-Ching, Chiang, H. Cynthia, Cliche, Jean-Francois, Crichton, Carolyn, Dave, Romeel, de Villiers, Dirk I. L., Dobbs, Matt A., Ewall-Wice, Aaron M., Eyono, Scott, Finlay, Christopher, Gaddam, Sindhu, Ganga, Ken, Gayley, Kevin G., Gerodias, Kit, Gibbon, Tim, Gumba, Austin, Gupta, Neeraj, Harris, Maile, Heilgendorf, Heiko, Hilton, Matt, Hincks, Adam D., Hitz, Pascal, Jalilvand, Mona, Julie, Roufurd, Kader, Zahra, Kania, Joseph, Karagiannis, Dionysios, Karastergiou, Aris, Kesebonye, Kabelo, Kittiwisit, Piyanat, Kneib, Jean-Paul, Knowles, Kenda, Kuhn, Emily R., Kunz, Martin, Maartens, Roy, MacKay, Vincent, MacPherson, Stuart, Monstein, Christian, Moodley, Kavilan, Mugundhan, V., Naidoo, Warren, Naidu, Arun, Newburgh, Laura B., Nistane, Viraj, Di Nitto, Amanda, Ölçek, Deniz, Pan, Xinyu, Paul, Sourabh, Peterson, Jeffrey B., Pieters, Elizabeth, Pieterse, Carla, Pillay, Aritha, Polish, Anna R., Randrianjanahary, Liantsoa, Refregier, Alexandre, Renard, Andre, Retana-Montenegro, Edwin, Rout, Ian H., Russeeawon, Cyndie, Sadr, Alireza Vafaei, Saliwanchik, Benjamin R. B., Sampath, Ajith, Sanghavi, Pranav, Santos, Mario G., Sengate, Onkabetse, Shaw, J. Richard, Sievers, Jonathan L., Smirnov, Oleg M., Smith, Kendrick M., Sob, Ulrich Armel Mbou, Srianand, Raghunathan, Stronkhorst, Pieter, Sunder, Dhaneshwar D., Tartakovsky, Simon, Taylor, Russ, Timbie, Peter, Tolley, Emma E., Townsend, Junaid, Tyndall, Will, Ungerer, Cornelius, van Dyk, Jacques, van Vuuren, Gary, Vanderlinde, Keith, Viant, Thierry, Walters, Anthony, Wang, Jingying, Weltman, Amanda, Woudt, Patrick, Wulf, Dallas, Zavyalov, Anatoly, Zhang, Zheng
Publikováno v:
J. of Astronomical Telescopes, Instruments, and Systems, 8(1), 011019 (2022)
The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a radio interferometer array currently in development, with an initial 256-element array to be deployed at the South African Radio Astronomy Observatory (SARAO) Square Kilometer Arra
Externí odkaz:
http://arxiv.org/abs/2109.13755
Autor:
Hincks, Adam D., Radiconi, Federico, Romero, Charles, Madhavacheril, Mathew S., Mroczkowski, Tony, Austermann, Jason E., Barbavara, Eleonora, Battaglia, Nicholas, Battistelli, Elia, Bond, J. Richard, Calabrese, Erminia, de Bernardis, Paolo, Devlin, Mark J., Dicker, Simon R., Duff, Shannon M., Duivenvoorden, Adriaan J., Dunkley, Jo, Dünner, Rolando, Gallardo, Patricio A., Govoni, Federica, Hill, J. Colin, Hilton, Matt, Hubmayr, Johannes, Hughes, John P., Lamagna, Luca, Lokken, Martine, Masi, Silvia, Mason, Brian S., McMahon, Jeff, Moodley, Kavilan, Murgia, Matteo, Naess, Sigurd, Page, Lyman, Piacentini, Francesco, Salatino, Maria, Sarazin, Craig L., Schillaci, Alessandro, Sievers, Jonathan L., Sifón, Cristóbal, Staggs, Suzanne, Ullom, Joel N., Vacca, Valentina, Van Engelen, Alexander, Vissers, Michael R., Wollack, Edward J., Xu, Zhilei
We report a significant detection of the hot intergalactic medium in the filamentary bridge connecting the galaxy clusters Abell 399 and Abell 401. This result is enabled by a low-noise, high-resolution map of the thermal Sunyaev-Zeldovich signal fro
Externí odkaz:
http://arxiv.org/abs/2107.04611
Autor:
Kuhn, Emily R., Saliwanchik, Benjamin R. B., Harris, Maile, Aich, Moumita, Bandura, Kevin, Chang, Tzu-Ching, Chiang, H. Cynthia, Crichton, Devin, Ewall-Wice, Aaron, Gumba, Austin A., Gupta, N., Kesebonye, Kabelo Calvin, Kneib, Jean-Paul, Kunz, Martin, Moodley, Kavilan, Newburgh, Laura B., Nistane, Viraj, Naidoo, Warren, Ölçek, Deniz, Peterson, Jeffrey B., Refregier, Alexandre, Sievers, Jonathan L., Ungerer, Corrie, Sadr, Alireza Vafaei, van Dyk, Jacques, Weltman, Amanda, Wulf, Dallas
Publikováno v:
Proc. SPIE 11445, Ground-based and Airborne Telescopes VIII, 114452Z (20 January 2021)
This paper describes the design, implementation, and verification of a test-bed for determining the noise temperature of radio antennas operating between 400-800MHz. The requirements for this test-bed were driven by the HIRAX experiment, which uses a
Externí odkaz:
http://arxiv.org/abs/2101.06337
Autor:
Saliwanchik, Benjamin R. B., Ewall-Wice, Aaron, Crichton, Devin, Kuhn, Emily R., Ölçek, Deniz, Bandura, Kevin, Bucher, Martin, Chang, Tzu-Ching, Chiang, H. Cynthia, Gerodias, Kit, Kesebonye, Kabelo, MacKay, Vincent, Moodley, Kavilan, Newburgh, Laura B., Nistane, Viraj, Peterson, Jeffrey B., Pieters, Elizabeth, Pieterse, Carla, Vanderlinde, Keith, Sievers, Jonathan L., Weltman, Amanda, Wulf, Dallas
The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a planned interferometric radio telescope array that will ultimately consist of 1024 close packed 6 m dishes that will be deployed at the SKA South Africa site. HIRAX will survey the
Externí odkaz:
http://arxiv.org/abs/2101.06338
Autor:
Li, Zack, Naess, Sigurd, Aiola, Simone, Alonso, David, Appel, John W., Bond, J. Richard, Calabrese, Erminia, Choi, Steve K., Crowley, Kevin T., Essinger-Hileman, Thomas, Duff, Shannon M., Dunkley, Joanna, Fowler, J. W., Gallardo, Patricio, Ho, Shuay-Pwu Patty, Hubmayr, Johannes, Kusaka, Akito, Louis, Thibaut, Madhavacheril, Mathew S., McMahon, Jeffrey, Nati, Federico, Niemack, Michael D., Page, Lyman, Parker, Lucas, Partridge, Bruce, Salatino, Maria, Sievers, Jonathan L., Sifón, Cristóbal, Simon, Sara M., Staggs, Suzanne T., Storer, Emilie, Wollack, Edward J.
Publikováno v:
Journal of Cosmology and Astroparticle Physics, Volume 2020, September 2020
One of the most important checks for systematic errors in CMB studies is the cross correlation of maps made by independent experiments. In this paper we report on the cross correlation between maps from the Atacama B-mode Search (ABS) and Atacama Cos
Externí odkaz:
http://arxiv.org/abs/2002.05717