Zobrazeno 1 - 10
of 6 178
pro vyhledávání: '"Shaw, J. A."'
Autor:
Tyndall, Will, Reda, Alex, Shaw, J. Richard, Bandura, Kevin, Chakraborty, Arnab, Kuhn, Emily, MacEachern, Joshua, Mena-Parra, Juan, Newburgh, Laura, Ordog, Anna, Pinsonneault-Marotte, Tristan, Polish, Anna Rose, Saliwanchik, Ben, Sanghavi, Pranav, Siegel, Seth R., Whitmer, Audrey, Wulf, Dallas
We present beam measurements of the CHIME telescope using a radio calibration source deployed on a drone payload. During test flights, the pulsing calibration source and the telescope were synchronized to GPS time, enabling in-situ background subtrac
Externí odkaz:
http://arxiv.org/abs/2407.04848
Autor:
Mohammed, Nasser, Ordog, Anna, Booth, Rebecca A., Bracco, Andrea, Brown, Jo-Anne C., Carretti, Ettore, Dickey, John M., Foreman, Simon, Halpern, Mark, Haverkorn, Marijke, Hill, Alex S., Hinshaw, Gary, Kania, Joseph W, Kothes, Roland, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi W., Menard, Aimee, Ransom, Ryan R., Reich, Wolfgang, Reich, Patricia, Shaw, J. Richard, Siegel, Seth R., Tahani, Mehrnoosh, Thomson, Alec J. M., Pinsonneault-Marotte, Tristan, Wang, Haochen, West, Jennifer L., Wolleben, Maik, Wulf, Dallas
A direct consequence of Faraday rotation is that the polarized radio sky does not resemble the total intensity sky at long wavelengths. We analyze G137+7, which is undetectable in total intensity but appears as a depolarization feature. We use the fi
Externí odkaz:
http://arxiv.org/abs/2405.15678
Autor:
Tang, H., Tangtartharakul, K., Babjak, R., Yeh, I-L., Albert, F., Chen, H., Campbell, P. T., Ma, Y., Nilson, P. M., Russell, B. K., Shaw, J. L., Thomas, A. G. R., Vranic, M., Arefiev, A. V., Willingale, L.
Direct Laser Acceleration (DLA) of electrons during a high-energy, picosecond laser interaction with an underdense plasma has been demonstrated to be substantially enhanced by controlling the laser focusing geometry. Experiments using the OMEGA EP fa
Externí odkaz:
http://arxiv.org/abs/2402.08026
Autor:
Lanman, Adam E., Andrew, Shion, Lazda, Mattias, Shah, Vishwangi, Amiri, Mandana, Balasubramanian, Arvind, Bandura, Kevin, Boyle, P. J., Brar, Charanjot, Carlson, Mark, Cliche, Jean-François, Gusinskaia, Nina, Hendricksen, Ian T., Kaczmarek, J. F., Landecker, Tom, Leung, Calvin, Mckinven, Ryan, Mena-Parra, Juan, Milutinovic, Nikola, Nimmo, Kenzie, Pearlman, Aaron B., Renard, Andre, Rahman, Mubdi, Shaw, J. Richard, Siegel, Seth R., Smegal, Rick J., Cassanelli, Tomas, Chatterjee, Shami, Curtin, Alice P., Dobbs, Matt, Dong, Fengqiu Adam, Halpern, Mark, Hopkins, Hans, Kaspi, Victoria M., Khairy, Kholoud, Masui, Kiyoshi W., Meyers, Bradley W., Michilli, Daniele, Petroff, Emily, Pinsonneault-Marotte, Tristan, Pleunis, Ziggy, Rafiei-Ravandi, Masoud, Shin, Kaitlyn, Smith, Kendrick, Vanderlinde, Keith, Zegmott, Tarik J.
Localizing fast radio bursts (FRBs) to their host galaxies is an essential step to better understanding their origins and using them as cosmic probes. The CHIME/FRB Outrigger program aims to add VLBI-localization capabilities to CHIME, such that FRBs
Externí odkaz:
http://arxiv.org/abs/2402.07898
Autor:
Daniel, J. R., Shaw, J. C., Wang, C., Liu, L. -R., Kendrick, B. K., Hemmerling, B., McCarron, D. J.
Publikováno v:
Physical Review A 108, 062821 (2023)
The majority of molecules proposed for laser cooling and trapping experiments have $\Sigma$-type ground states. Specifically, $^2\Sigma$ states have cycling transitions analogous to D1-lines in alkali-metal atoms while $^1\Sigma$ states offer both st
Externí odkaz:
http://arxiv.org/abs/2309.16835
Autor:
CHIME Collaboration, Amiri, Mandana, Bandura, Kevin, Chakraborty, Arnab, Dobbs, Matt, Fandino, Mateus, Foreman, Simon, Gan, Hyoyin, Halpern, Mark, Hill, Alex S., Hinshaw, Gary, Höfer, Carolin, Landecker, T. L., Li, Zack, MacEachern, Joshua, Masui, Kiyoshi, Mena-Parra, Juan, Milutinovic, Nikola, Mirhosseini, Arash, Newburgh, Laura, Ordog, Anna, Paul, Sourabh, Pen, Ue-Li, Pinsonneault-Marotte, Tristan, Reda, Alex, Shaw, J. Richard, Siegel, Seth R., Vanderlinde, Keith, Wang, Haochen, Wiebe, D. V., Wulf, Dallas
We report the detection of 21 cm emission at an average redshift $\bar{z} = 2.3$ in the cross-correlation of data from the Canadian Hydrogen Intensity Mapping Experiment (CHIME) with measurements of the Lyman-$\alpha$ forest from eBOSS. Data collecte
Externí odkaz:
http://arxiv.org/abs/2309.04404
Autor:
Ambat, M. V., Shaw, J. L., Pigeon, J. J., Miller, K. G., Simpson, T. T., Froula, D. H., Palastro, J. P.
"Flying focus" techniques produce laser pulses with dynamic focal points that travels distances much greater than a Rayleigh length. The implementation of these techniques in laser-based applications requires the design of optical configurations that
Externí odkaz:
http://arxiv.org/abs/2307.05313
Autor:
Bruhaug, G., Freeman, M. S., Rinderknecht, H. G., Neukirch, L. P., Wilde, C. H., Merrill, F. E, Rygg, J. R., Wei, M. S., Collins, G. W., Shaw, J. L.
Contact and projection electron radiography of static targets was demonstrated using a laser plasma accelerator driven by a kilojoule, picosecond class laser as a source of relativistic electrons with an average energy of 20 MeV. Objects with areal d
Externí odkaz:
http://arxiv.org/abs/2209.14944
Autor:
Reda, Alex, Pinsonneault-Marotte, Tristan, Deng, Meiling, Amiri, Mandana, Bandura, Kevin, Chakraborty, Arnab, Foreman, Simon, Halpern, Mark, Hill, Alex S., Höfer, Carolin, Kania, Joseph, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi, Mena-Parra, Juan, Milutinovic, Nikola, Newburgh, Laura, Ordog, Anna, Paul, Sourabh, Shaw, J. Richard, Siegel, Seth R., Smegal, Rick, Wang, Haochen, Wulf, Dallas
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) will measure the 21 cm emission of astrophysical neutral hydrogen to probe large scale structure at redshifts z=0.8-2.5. However, detecting the 21 cm signal beneath substantially brighter for
Externí odkaz:
http://arxiv.org/abs/2207.13876
Autor:
CHIME Collaboration, Amiri, Mandana, Bandura, Kevin, Chen, Tianyue, Deng, Meiling, Dobbs, Matt, Fandino, Mateus, Foreman, Simon, Halpern, Mark, Hill, Alex S., Hinshaw, Gary, Höfer, Carolin, Kania, Joseph, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi, Mena-Parra, Juan, Milutinovic, Nikola, Mirhosseini, Arash, Newburgh, Laura, Ordog, Anna, Pen, Ue-Li, Pinsonneault-Marotte, Tristan, Polzin, Ava, Reda, Alex, Renard, Andre, Shaw, J. Richard, Siegel, Seth R., Singh, Saurabh, Vanderlinde, Keith, Wang, Haochen, Wiebe, Donald V., Wulf, Dallas
We present a detection of 21-cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). Radio observations acquired over 102 nights are used to construct maps whic
Externí odkaz:
http://arxiv.org/abs/2202.01242