Zobrazeno 1 - 10
of 1 088
pro vyhledávání: '"Champion, D"'
Autor:
Goncharov, Boris, Sardana, Shubhit, Sesana, A., Tomson, S. M., Antoniadis, J., Chalumeau, A., Champion, D., Chen, S., Keane, E. F., Liu, K., Shaifullah, G., Speri, L., Valtolina, S.
We find the inferred properties of the putative gravitational wave background in the second data release of the European Pulsar Timing Array (EPTA) to be in better agreement with theoretical expectations under the improved noise model. In particular,
Externí odkaz:
http://arxiv.org/abs/2409.03627
Autor:
Trudu, M., Possenti, A., Pilia, M., Bailes, M., Keane, E. F., Kramer, M., Balakrishnan, V., Bhandari, S., Bhat, N. D. R., Burgay, M., Cameron, A., Champion, D. J., Jameson, A., Johnston, S., Keith, M. J., Levin, L., Ng, C., Sengar, R., Tiburzi, C.
Publikováno v:
A&A 690, A204 (2024)
Current observational evidence reveals that fast radio bursts (FRBs) exhibit bandwidths ranging from a few dozen MHz to several GHz. Traditional FRB searches primarily employ matched filter methods on time series collapsed across the entire observati
Externí odkaz:
http://arxiv.org/abs/2408.14384
Autor:
Carli, E., Levin, L., Stappers, B. W., Barr, E. D., Breton, R. P., Buchner, S., Burgay, M., Geyer, M., Kramer, M., Padmanabh, P. V., Possenti, A., Krishnan, V. Venkatraman, Becker, W., Filipović, M. D., Maitra, C., Behrend, J., Champion, D. J., Chen, W., Men, Y. P., Ridolfi, A.
The sensitivity of the MeerKAT radio interferometer is an opportunity to probe deeper into the population of rare and faint extragalactic pulsars. The TRAPUM (TRAnsients and PUlsars with MeerKAT) collaboration has conducted a radio-domain search for
Externí odkaz:
http://arxiv.org/abs/2405.12029
Autor:
Turner, J. D., Stappers, B. W., Carli, E., Barr, E. D., Becker, W., Behrend, J., Breton, R. P., Buchner, S., Burgay, M., Champion, D. J., Chen, W., Clark, C. J., Horn, D. M., Keane, E. F., Kramer, M., ünkel, L. K, Levin, L., Men, Y. P., Padmanabh, P. V., Ridolfi, A., Krishnan, V. Venkatraman
We present the description and initial results of the TRAPUM (TRAnsients And PUlsars with MeerKAT) search for pulsars associated with supernova remnants (SNRs), pulsar wind nebulae and unidentified TeV emission. The list of sources to be targeted inc
Externí odkaz:
http://arxiv.org/abs/2405.11899
Autor:
Falxa, Mikel, Antoniadis, J., Champion, D. J., Cognard, I., Desvignes, G., Guillemot, L., Hu, H., Janssen, G., Jawor, J., Karuppusamy, R., Keith, M. J., Kramer, M., Lackeos, K., Liu, K., McKee, J. W., Perrodin, D., Sanidas, S. A., Shaifullah, G. M., Theureau, G.
Pulsar Timing Array (PTA) collaborations recently reported evidence for the presence of a gravitational wave background (GWB) in their datasets. The main candidate that is expected to produce such a GWB is the population of supermassive black hole bi
Externí odkaz:
http://arxiv.org/abs/2405.03295
Autor:
Smarra, Clemente, Kuntz, Adrien, Barausse, Enrico, Goncharov, Boris, Nacir, Diana López, Blas, Diego, Shao, Lijing, Antoniadis, J., Champion, D. J., Cognard, I., Guillemot, L., Hu, H., Keith, M., Kramer, M., Liu, K., Perrodin, D., Sanidas, S. A., Theureau, G.
Publikováno v:
Phys. Rev. D 110 (2024) 043033
Millisecond pulsars are extremely precise celestial clocks: as they rotate, the beamed radio waves emitted along the axis of their magnetic field can be detected with radio telescopes, which allows for tracking subtle changes in the pulsars' rotation
Externí odkaz:
http://arxiv.org/abs/2405.01633
Autor:
Padmanabh, P. V., Ransom, S. M., Freire, P. C. C., Ridolfi, A., Taylor, J. D., Choza, C., Clark, C. J., Abbate, F., Bailes, M., Barr, E. D., Buchner, S., Burgay, M., DeCesar, M. E., Chen, W., Corongiu, A., Champion, D. J., Dutta, A., Geyer, M., Hessels, J. W. T., Kramer, M., Possenti, A., Stairs, I. H., Stappers, B. W., Krishnan, V. Venkatraman, Vleeschower, L., Zhang, L.
Publikováno v:
A&A 686, A166 (2024)
We report the discovery of ten new pulsars in the globular cluster Terzan 5 as part of the Transients and Pulsars with MeerKAT (TRAPUM) Large Survey Project. We observed Terzan 5 at L-band (856--1712 MHz) with the MeerKAT radio telescope for four hou
Externí odkaz:
http://arxiv.org/abs/2403.17799
Autor:
Thongmeearkom, T., Clark, C. J., Breton, R. P., Burgay, M., Nieder, L., Freire, P. C. C., Barr, E. D., Stappers, B. W., Ransom, S. M., Buchner, S., Calore, F., Champion, D. J., Cognard, I., Grießmeier, J. -M., Kramer, M., Levin, L., Padmanabh, P. V., Possenti, A., Ridolfi, A., Krishnan, V. Venkatraman, Vleeschower, L.
Redbacks are millisecond pulsar binaries with low mass, irradiated companions. These systems have a rich phenomenology that can be used to probe binary evolution models, pulsar wind physics, and the neutron star mass distribution. A number of high-co
Externí odkaz:
http://arxiv.org/abs/2403.09553
Autor:
Lower, M. E., Kramer, M., Shannon, R. M., Breton, R. P., Wex, N., Johnston, S., Bailes, M., Buchner, S., Hu, H., Krishnan, V. Venkatraman, Blackmon, V. A., Camilo, F., Champion, D. J., Freire, P. C. C., Geyer, M., Karastergiou, A., van Leeuwen, J., McLaughlin, M. A., Reardon, D. J., Stairs, I. H.
Publikováno v:
A&A 682, A26 (2024)
The double pulsar system, PSR J0737$-$3039A/B, consists of two neutron stars bound together in a highly relativistic orbit that is viewed nearly edge-on from the Earth. This alignment results in brief radio eclipses of the fast-rotating pulsar A when
Externí odkaz:
http://arxiv.org/abs/2311.06445
Autor:
Wongphechauxsorn, J., Champion, D. J., Bailes, M., Balakrishnan, V., Barr, E. D., Bernadich, M. C. i, Bhat, N. D. R., Burgay, M., Cameron, A. D., Chen, W., Flynn, C. M. L., Jameson, A., Johnston, S., Keith, M. J., Kramer, M., Ng, C., Possenti, A., Sengar, R., Shannon, R. M., Stappers, B., van Straten, W.
The HTRU-S Low Latitude survey data within 1$^{\circ}$of the Galactic Centre (GC) were searched for pulsars using the Fast Folding Algorithm (FFA). Unlike traditional Fast Fourier Transform (FFT) pipelines, the FFA optimally folds the data for all po
Externí odkaz:
http://arxiv.org/abs/2310.14008