Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Shaw, J. R."'
Autor:
Collaboration, CHIME/Pulsar, Amiri, M., Bandura, K. M., Boyle, P. J., Brar, C., Cliche, J. F., Crowter, K., Cubranic, D., Demorest, P. B., Denman, N. T., Dobbs, M., Dong, F. Q., Fandino, M., Fonseca, E., Good, D. C., Halpern, M., Hill, A. S., Höfer, C., Kaspi, V. M., Landecker, T. L., Leung, C., Lin, H. -H., Luo, J., Masui, K. W., McKee, J. W., Mena-Parra, J., Meyers, B. W., Michilli, D., Naidu, A., Newburgh, L., Ng, C., Patel, C., Pinsonneault-Marotte, T., Ransom, S. M., Renard, A., Scholz, P., Shaw, J. R., Sikora, A. E., Stairs, I. H., Tan, C. M., Tendulkar, S. P., Tretyakov, I., Vanderlinde, K., Wang, H., Wang, X.
We present the design, implementation and performance of a digital backend constructed for the Canadian Hydrogen Intensity Mapping Experiment (CHIME) that uses accelerated computing to observe radio pulsars and transient radio sources. When operating
Externí odkaz:
http://arxiv.org/abs/2008.05681
Autor:
Collaboration, The CHIME/FRB, Andersen, B. C., Bandura, K. M., Bhardwaj, M., Bij, A., Boyce, M. M., Boyle, P. J., Brar, C., Cassanelli, T., Chawla, P., Chen, T., Cliche, J. -F., Cook, A., Cubranic, D., Curtin, A. P., Denman, N. T., Dobbs, M., Dong, F. Q., Fandino, M., Fonseca, E., Gaensler, B. M., Giri, U., Good, D. C., Halpern, M., Hill, A. S., Hinshaw, G. F., Höfer, C., Josephy, A., Kania, J. W., Kaspi, V. M., Landecker, T. L., Leung, C., Li, D. Z., Lin, H. -H., Masui, K. W., Mckinven, R., Mena-Parra, J., Merryfield, M., Meyers, B. W., Michilli, D., Milutinovic, N., Mirhosseini, A., Münchmeyer, M., Naidu, A., Newburgh, L. B., Ng, C., Patel, C., Pen, U. -L., Pinsonneault-Marotte, T., Pleunis, Z., Quine, B. M., Rafiei-Ravandi, M., Rahman, M., Ransom, S. M., Renard, A., Sanghavi, P., Scholz, P., Shaw, J. R., Shin, K., Siegel, S. R., Singh, S., Smegal, R. J., Smith, K. M., Stairs, I. H., Tan, C. M., Tendulkar, S. P., Tretyakov, I., Vanderlinde, K., Wang, H., Wulf, D., Zwaniga, A. V.
Magnetars are highly magnetized young neutron stars that occasionally produce enormous bursts and flares of X-rays and gamma-rays. Of the approximately thirty magnetars currently known in our Galaxy and Magellanic Clouds, five have exhibited transien
Externí odkaz:
http://arxiv.org/abs/2005.10324
Autor:
Collaboration, The CHIME/FRB, Amiri, M., Andersen, B. C., Bandura, K. M., Bhardwaj, M., Boyle, P. J., Brar, C., Chawla, P., Chen, T., Cliche, J. F., Cubranic, D., Deng, M., Denman, N. T., Dobbs, M., Dong, F. Q., Fandino, M., Fonseca, E., Gaensler, B. M., Giri, U., Good, D. C., Halpern, M., Hessels, J. W. T., Hill, A. S., Höfer, C., Josephy, A., Kania, J. W., Karuppusamy, R., Kaspi, V. M., Keimpema, A., Kirsten, F., Landecker, T. L., Lang, D. A., Leung, C., Li, D. Z., Lin, H. -H., Marcote, B., Masui, K. W., Mckinven, R., Mena-Parra, J., Merryfield, M., Michilli, D., Milutinovic, N., Mirhosseini, A., Naidu, A., Newburgh, L. B., Ng, C., Nimmo, K., Paragi, Z., Patel, C., Pen, U. -L., Pinsonneault-Marotte, T., Pleunis, Z., Rafiei-Ravandi, M., Rahman, M., Ransom, S. M., Renard, A., Sanghavi, P., Scholz, P., Shaw, J. R., Shin, K., Siegel, S. R., Singh, S., Smegal, R. J., Smith, K. M., Stairs, I. H., Tendulkar, S. P., Tretyakov, I., Vanderlinde, K., Wang, H., Wang, X., Wulf, D., Yadav, P., Zwaniga, A. V.
Publikováno v:
Nature, Volume 582, page 351--355 (2020)
Fast radio bursts (FRBs) are bright, millisecond-duration radio transients originating from extragalactic distances. Their origin is unknown. Some FRB sources emit repeat bursts, ruling out cataclysmic origins for those events. Despite searches for p
Externí odkaz:
http://arxiv.org/abs/2001.10275
Autor:
Collaboration, CHIME/FRB, Amiri, Mandana, Bandura, Kevin, Bhardwaj, Mohit, Boubel, Paula, Boyce, Michelle M., Boyle, Patrick J., Brar, Charanjot, Burhanpurkar, Maya, Chawla, Pragya, Cliche, Jean F., Cubranic, Davor, Deng, Meiling, Denman, Nolan, Dobbs, Matthew, Fandino, M., Fonseca, Emmanuel, Gaensler, Bryan M., Gilbert, Adam J., Giri, Utkarsh, Good, Deborah C., Halpern, Mark, Hanna, David, Hill, Alexander S., Hinshaw, Gary, Höfer, C., Josephy, Alexander, Kaspi, Victoria M., Landecker, Thomas L., Lang, Dustin A., Masui, Kiyoshi W., Mckinven, Ryan, Mena-Parra, Juan, Merryfield, Marcus, Milutinovic, Nikola, Moatti, Charles, Naidu, Arun, Newburgh, Laura B., Ng, Cherry, Patel, Chitrang, Pen, Ue-Li, Pinsonneault-Marotte, Tristan, Pleunis, Ziggy, Rafiei-Ravandi, Masoud, Ransom, Scott M., Renard, Andre, Scholz, Paul, Shaw, J. R., Siegel, Seth R., Smith, Kendrick M., Stairs, Ingrid H., Tendulkar, Shriharsh P., Tretyakov, Ian, Vanderlinde, Keith, Yadav, Prateek
Fast radio bursts (FRBs) are highly dispersed millisecond-duration radio flashes likely arriving from far outside the Milky Way galaxy. This phenomenon was discovered at radio frequencies near 1.4 GHz and to date has been observed in one case at as h
Externí odkaz:
http://arxiv.org/abs/1901.04524
Autor:
Collaboration, The CHIME/FRB, Amiri, M., Bandura, K., Bhardwaj, M., Boubel, P., Boyce, M. M., Boyle, P. J., Brar, C., Burhanpurkar, M., Cassanelli, T., Chawla, P., Cliche, J. F., Cubranic, D., Deng, M., Denman, N., Dobbs, M., Fandino, M., Fonseca, E., Gaensler, B. M., Gilbert, A. J., Gill, A., Giri, U., Good, D. C., Halpern, M., Hanna, D. S., Hill, A. S., Hinshaw, G., Höfer, C., Josephy, A., Kaspi, V. M., Landecker, T. L., Lang, D. A., Lin, H. -H., Masui, K. W., Mckinven, R., Mena-Parra, J., Merryfield, M., Michilli, D., Milutinovic, N., Moatti, C., Naidu, A., Newburgh, L. B., Ng, C., Patel, C., Pen, U. -L., Pinsonneault-Marotte, T., Pleunis, Z., Rafiei-Ravandi, M., Rahman, M., Ransom, S. M., Renard, A., Scholz, P., Shaw, J. R., Siegel, S. R., Smith, K. M., Stairs, I. H., Tendulkar, S. P., Tretyakov, I., Vanderlinde, K., Yadav, P.
The discovery of a repeating Fast Radio Burst (FRB) source, FRB 121102, eliminated models involving cataclysmic events for this source. No other repeating FRB has yet been detected in spite of many recent FRB discoveries and follow-ups, suggesting re
Externí odkaz:
http://arxiv.org/abs/1901.04525
In radio interferometry, the quantization process introduces a bias in the magnitude and phase of the measured correlations which translates into errors in the measurement of source brightness and position in the sky, affecting both the system calibr
Externí odkaz:
http://arxiv.org/abs/1803.04296
Autor:
Ng, C., Vanderlinde, K., Paradise, A., Klages, P., Masui, K., Smith, K., Bandura, K., Boyle, P. J., Dobbs, M., Kaspi, V., Renard, A., Shaw, J. R., Stairs, I., Tretyakov, I.
We have developed FFT beamforming techniques for the CHIME radio telescope, to search for and localize the astrophysical signals from Fast Radio Bursts (FRBs) over a large instantaneous field-of-view (FOV) while maintaining the full angular resolutio
Externí odkaz:
http://arxiv.org/abs/1702.04728
We model a 21 cm intensity mapping survey in the redshift range 0.01
Externí odkaz:
http://arxiv.org/abs/1310.8144
Autor:
Switzer, E. R., Masui, K. W., Bandura, K., Calin, L. -M., Chang, T. -C., Chen, X. -L., Li, Y. -C., Liao, Y. -W., Natarajan, A., Pen, U. -L., Peterson, J. B., Shaw, J. R., Voytek, T. C.
The large-scale distribution of neutral hydrogen in the Universe will be luminous through its 21 cm emission. Here, for the first time, we use the auto-power spectrum of 21 cm intensity fluctuations to constrain neutral hydrogen fluctuations at z~0.8
Externí odkaz:
http://arxiv.org/abs/1304.3712
Autor:
Masui, K. W., Switzer, E. R., Banavar, N., Bandura, K., Blake, C., Calin, L. -M., Chang, T. -C., Chen, X., Li, Y. -C., Liao, Y. -W., Natarajan, A., Pen, U. -L., Peterson, J. B., Shaw, J. R., Voytek, T. C.
In this letter, 21 cm intensity maps acquired at the Green Bank Telescope are cross-correlated with large-scale structure traced by galaxies in the WiggleZ Dark Energy Survey. The data span the redshift range 0.6 < z < 1 over two fields totaling ~41
Externí odkaz:
http://arxiv.org/abs/1208.0331