Zobrazeno 111 - 120
of 771
pro vyhledávání: '"Cognard, I."'
Autor:
Crawford, F., Stovall, K., Lyne, A. G., Stappers, B. W., Nice, D. J., Stairs, I. H., Lazarus, P., Hessels, J. W. T., Freire, P. C. C., Allen, B., Bhat, N. D. R., Bogdanov, S., Brazier, A., Camilo, F., Champion, D. J., Chatterjee, S., Cognard, I., Cordes, J. M., Deneva, J. S., Desvignes, G., Jenet, F. A., Kaspi, V. M., Knispel, B., Kramer, M., van Leeuwen, J., Lorimer, D. R., Lynch, R., McLaughlin, M. A., Ransom, S. M., Scholz, P., Siemens, X., Venkataraman, A.
Publikováno v:
Astrophys.J.757:90,2012
We present the discovery and phase-coherent timing of four highly dispersed millisecond pulsars (MSPs) from the Arecibo PALFA Galactic plane survey: PSRs J1844+0115, J1850+0124, J1900+0308, and J1944+2236. Three of the four pulsars are in binary syst
Externí odkaz:
http://arxiv.org/abs/1208.1273
Autor:
Deneva, J. S., Freire, P. C. C., Cordes, J. M., Lyne, A. G., Ransom, S. M., Cognard, I., Camilo, F., Nice, D. J., Stairs, I. H., Allen, B., Bhat, N. D. R., Bogdanov, S., Brazier, A., Champion, D. J., Chatterjee, S., Crawford, F., Desvignes, G., Hessels, J. W. T., Jenet, F. A., Kaspi, V. M., Knispel, B., Kramer, M., Lazarus, P., van Leeuwen, J., Lorimer, D. R., Lynch, R. S., McLaughlin, M. A., Scholz, P., Siemens, X., Stappers, B. W., Stovall, K., Venkataraman, A.
We present two millisecond pulsar discoveries from the PALFA survey of the Galactic plane with the Arecibo telescope. PSR J1955+2527 is an isolated pulsar with a period of 4.87 ms, and PSR J1949+3106 has a period of 13.14 ms and is in a 1.9-day binar
Externí odkaz:
http://arxiv.org/abs/1208.1228
Autor:
Ray, P. S., Abdo, A. A., Parent, D., Bhattacharya, D., Bhattacharyya, B., Camilo, F., Cognard, I., Theureau, G., Ferrara, E. C., Harding, A. K., Thompson, D. J., Freire, P. C. C., Guillemot, L., Gupta, Y., Roy, J., Hessels, J. W. T., Johnston, S., Keith, M., Shannon, R., Kerr, M., Michelson, P. F., Romani, R. W., Kramer, M., McLaughlin, M. A., Ransom, S. M., Roberts, M. S. E., Parkinson, P. M. Saz, Ziegler, M., Smith, D. A., Stappers, B. W., Weltevrede, P., Wood, K. S.
We present a summary of the Fermi Pulsar Search Consortium (PSC), an international collaboration of radio astronomers and members of the Large Area Telescope (LAT) collaboration, whose goal is to organize radio follow-up observations of Fermi pulsars
Externí odkaz:
http://arxiv.org/abs/1205.3089
Discovery of the millisecond pulsar PSR J2043+1711 in a Fermi source with the Nancay Radio Telescope
Autor:
Guillemot, L., Freire, P. C. C., Cognard, I., Johnson, T. J., Takahashi, Y., Kataoka, J., Desvignes, G., Camilo, F., Ferrara, E. C., Harding, A. K., Janssen, G. H., Keith, M., Kerr, M., Kramer, M., Parent, D., Ransom, S. M., Ray, P. S., Parkinson, P. M. Saz, Smith, D. A., Stappers, B. W., Theureau, G.
We report the discovery of the millisecond pulsar PSR J2043+1711 in a search of a Fermi Large Area Telescope (LAT) source with no known associations, with the Nancay Radio Telescope. The new pulsar, confirmed with the Green Bank Telescope, has a spin
Externí odkaz:
http://arxiv.org/abs/1202.1128
Autor:
Guillemot, L., Johnson, T. J., Venter, C., Kerr, M., Pancrazi, B., Livingstone, M., Janssen, G. H., Jaroenjittichai, P., Kramer, M., Cognard, I., Stappers, B. W., Harding, A. K., Camilo, F., Espinoza, C. M., Freire, P. C. C., Gargano, F., Grove, J. E., Johnston, S., Michelson, P. F., Noutsos, A., Parent, D., Ransom, S. M., Ray, P. S., Shannon, R., Smith, D. A., Theureau, G., Thorsett, S. E., Webb, N.
We report the detection of pulsed gamma-ray emission from the fast millisecond pulsars (MSPs) B1937+21 (also known as J1939+2134) and B1957+20 (J1959+2048) using 18 months of survey data recorded by the \emph{Fermi} Large Area Telescope (LAT) and tim
Externí odkaz:
http://arxiv.org/abs/1110.1271
Autor:
Fienga, A., Laskar, J., Kuchynka, P., Manche, H., Desvignes, G., Gastineau, M., Cognard, I., Theureau, G.
Compared to the previous INPOP versions, the INPOP10a planetary and lunar ephemeris has several improvements. For the planets of our solar system, no big change was brought in the dynamics but improvements were implemented in the fitting process, the
Externí odkaz:
http://arxiv.org/abs/1108.5546
Most pulsars observed by the Fermi LAT have gamma-ray luminosities scaling with spindown power Edot as L_gamma (Edot x 10^33 erg/s)^{1/2}. However, there exist one detection and several upper limits an order of magnitude or more fainter than this tre
Externí odkaz:
http://arxiv.org/abs/1106.5762
Autor:
Grondin, M. -H., Funk, S., Lemoine-Goumard, M., Van Etten, A., Hinton, J. A., Camilo, F., Cognard, I., Espinoza, C. M., Freire, P. C. C., Grove, J. E., Guillemot, L., Johnston, S., Kramer, M., Lande, J., Michelson, P., Possenti, A., Romani, R. W., Skilton, J. L., Theureau, G., Weltevrede, P.
We announce the discovery of 1 - 100 GeV gamma-ray emission from the archetypal TeV pulsar wind nebula HESS J1825-137 using 20 months of survey data from the Fermi Large Area Telescope (LAT). The gamma-ray emission detected by the LAT is significantl
Externí odkaz:
http://arxiv.org/abs/1106.0184
Autor:
van Haasteren, R., Levin, Y., Janssen, G. H., Lazaridis, K., Stappers, M. Kramer B. W., Desvignes, G., Purver, M. B., Lyne, A. G., Ferdman, R. D., Jessner, A., Cognard, I., Theureau, G., D'Amico, N., Possenti, A., Burgay, M., Corongiu, A., Hessels, J. W. T., Smits, R., Verbiest, J. P. W.
Direct detection of low-frequency gravitational waves ($10^{-9} - 10^{-8}$ Hz) is the main goal of pulsar timing array (PTA) projects. One of the main targets for the PTAs is to measure the stochastic background of gravitational waves (GWB) whose cha
Externí odkaz:
http://arxiv.org/abs/1103.0576
Autor:
Lazaridis, K., Verbiest, J. P. W., Tauris, T. M., Stappers, B. W., Kramer, M., Wex, N., Jessner, A., Cognard, I., Desvignes, G., Janssen, G. H., Purver, M. B., Theureau, G., Bassa, C. G., Smits, R.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 414, Issue 4, pp. 3134-3144 (2011)
We have conducted radio timing observations of the eclipsing millisecond binary pulsar J2051-0827 with the European Pulsar Timing Array network of telescopes and the Parkes radio telescope, spanning over 13 years. The increased data span allows signi
Externí odkaz:
http://arxiv.org/abs/1102.5646