Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Purver, M."'
Autor:
Purver, M., Bassa, C. G., Cognard, I., Janssen, G. H., Karuppusamy, R., Kramer, M., Lee, K. J., Liu, K., McKee, J. W., Perrodin, D., Sanidas, S., Smits, R., Stappers, B. W.
Publikováno v:
MNRAS, 510, 1597 (2022)
We describe how to implement the spectral kurtosis method of interference removal (zapping) on a digitized signal of averaged power values. Spectral kurtosis is a hypothesis test, analogous to the t-test, with a null hypothesis that the amplitudes fr
Externí odkaz:
http://arxiv.org/abs/2111.14225
Autor:
Smits, R., Bassa, C. G., Janssen, G. H., Karuppusamy, R., Kramer, M., Lee, K. J., Liu, K., McKee, J., Perrodin, D., Purver, M., Sanidas, S., Stappers, B. W., Zhu, W. W.
The Large European Array for Pulsars combines Europe's largest radio telescopes to form a tied-array telescope that provides high signal-to-noise observations of millisecond pulsars (MSPs) with the objective to increase the sensitivity of detecting l
Externí odkaz:
http://arxiv.org/abs/1703.06438
Autor:
Liu, K., Bassa, C. G., Janssen, G. H., Karuppusamy, R., McKee, J., Kramer, M., Lee, K. J., Perrodin, D., Purver, M., Sanidas, S., Smits, R., Stappers, B. W., Weltevrede, P., Zhu, W. W.
Single pulses preserve information about the pulsar radio emission and propagation in the pulsar magnetosphere, and understanding the behaviour of their variability is essential for estimating the fundamental limit on the achievable pulsar timing pre
Externí odkaz:
http://arxiv.org/abs/1609.00188
Autor:
Perrodin, D., Bassa, C. G., Janssen, G. H., Karuppusamy, R., Kramer, M., Lee, K., Liu, K., McKee, J., Purver, M., Sanidas, S., Smits, R., Stappers, B. W., Zhu, W., Concu, R., Melis, A., Burgay, M., Casu, S., Corongiu, A., Egron, E., Iacolina, N., Pellizzoni, A., Pilia, M., Trois, A.
A background of nanohertz gravitational waves from supermassive black hole binaries could soon be detected by pulsar timing arrays, which measure the times-of-arrival of radio pulses from millisecond pulsars with very high precision. The European Pul
Externí odkaz:
http://arxiv.org/abs/1608.01839
Autor:
Desvignes, G., Caballero, R. N., Lentati, L., Verbiest, J. P. W., Champion, D. J., Stappers, B. W., Janssen, G. H., Lazarus, P., Osłowski, S., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Cognard, I., Gair, J. R., Graikou, E., Guillemot, L., Hessels, J. W. T., Jessner, A., Jordan, C., Karuppusamy, R., Kramer, M., Lassus, A., Lazaridis, K., Lee, K. J., Liu, K., Lyne, A. G., McKee, J., Mingarelli, C. M. F., Perrodin, D., Petiteau, A., Possenti, A., Purver, M. B., Rosado, P. A., Sanidas, S., Sesana, A., Shaifullah, G., Smits, R., Taylor, S. R., Theureau, G., Tiburzi, C., van Haasteren, R., Vecchio, A .
We report on the high-precision timing of 42 radio millisecond pulsars (MSPs) observed by the European Pulsar Timing Array (EPTA). This EPTA Data Release 1.0 extends up to mid-2014 and baselines range from 7-18 years. It forms the basis for the stoch
Externí odkaz:
http://arxiv.org/abs/1602.08511
Autor:
Bassa, C. G., Janssen, G. H., Karuppusamy, R., Kramer, M., Lee, K. J., Liu, K., McKee, J., Perrodin, D., Purver, M., Sanidas, S., Smits, R., Stappers, B. W.
The Large European Array for Pulsars (LEAP) is an experiment that harvests the collective power of Europe's largest radio telescopes in order to increase the sensitivity of high-precision pulsar timing. As part of the ongoing effort of the European P
Externí odkaz:
http://arxiv.org/abs/1511.06597
Autor:
Caballero, R. N., Lee, K. J., Lentati, L., Desvignes, G., Champion, D. J., Verbiest, J. P. W., Janssen, G. H., Stappers, B. W., Kramer, M., Lazarus, P., Possenti, A., Tiburzi, C., Perrodin, D., Osłowski, S., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Cognard, I., Gair, J. R., Graikou, E., Guillemot, L., Hessels, J. W. T., Karuppusamy, R., Lassus, A., Liu, K., McKee, J., Mingarelli, C. M. F., Petiteau, A., Purver, M. B., Rosado, P. A., Sanidas, S., Sesana, A., Shaifullah, G., Smits, R., Taylor, S. R., Theureau, G., van Haasteren, R., Vecchio, A.
The sensitivity of Pulsar Timing Arrays to gravitational waves depends on the noise present in the individual pulsar timing data. Noise may be either intrinsic or extrinsic to the pulsar. Intrinsic sources of noise will include rotational instabiliti
Externí odkaz:
http://arxiv.org/abs/1510.09194
Autor:
Taylor, S. R., Mingarelli, C. M. F., Gair, J. R., Sesana, A., Theureau, G., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Caballero, R. N., Champion, D. J., Cognard, I., Desvignes, G., Guillemot, L., Hessels, J. W. T., Janssen, G. H., Karuppusamy, R., Kramer, M., Lassus, A., Lazarus, P., Lentati, L., Liu, K., Osłowski, S., Perrodin, D., Petiteau, A., Possenti, A., Purver, M. B., Rosado, P. A., Sanidas, S. A., Smits, R., Stappers, B., Tiburzi, C., van Haasteren, R., Vecchio, A., Verbiest, J. P. W.
The paucity of observed supermassive black hole binaries (SMBHBs) may imply that the gravitational wave background (GWB) from this population is anisotropic, rendering existing analyses sub-optimal. We present the first constraints on the angular dis
Externí odkaz:
http://arxiv.org/abs/1506.08817
Autor:
Liu, K., Karuppusamy, R., Lee, K. J., Stappers, B. W., Kramer, M., Smits, R., Purver, M. B., Janssen, G. H., Perrodin, D.
Millisecond pulsars (MSPs) are known as highly stable celestial clocks. Nevertheless, recent studies have revealed the unstable nature of their integrated pulse profiles, which may limit the achievable pulsar timing precision. In this paper, we prese
Externí odkaz:
http://arxiv.org/abs/1502.06785
Autor:
Shannon, R. M., Cordes, J. M., Metcalfe, T. S., Lazio, T. J. W., Cognard, I., Desvignes, G., Janssen, G. H., Jessner, A., Kramer, M., Lazaridis, K., Purver, M. B., Stappers, B. W., Theureau, G.
Pulsar timing observations have revealed companions to neutron stars that include other neutron stars, white dwarfs, main-sequence stars, and planets. We demonstrate that the correlated and apparently stochastic residual times of arrival from the mil
Externí odkaz:
http://arxiv.org/abs/1301.6429