Search Results - "Madison, D. R."

An all-sky search for continuous gravitational waves in the Parkes Pulsar Timing Array data set by Zhu, X.-J., Hobbs, G., Wen, L., Coles, W. A., Wang, J.-B., Shannon, R. M., Manchester, R. N., Bailes, M., Bhat, N. D. R., Burke-Spolaor, S., Dai, S., Keith, M. J., Kerr, M., Levin, Y., Madison, D. R., Osłowski, S., Ravi, V., Toomey, L., van Straten, W.

“…We present results of an all-sky search in the Parkes Pulsar Timing Array (PPTA) Data Release 1 data set for continuous gravitational waves (GWs) in the…”
Get full text

The NANOGrav 12.5 yr Data Set: Polarimetry and Faraday Rotation Measures from Observations of Millisecond Pulsars with the Green Bank Telescope by Wahl, H. M., McLaughlin, M. A., Gentile, P. A., Jones, M. L., Spiewak, R., Arzoumanian, Z., Crowter, K., Demorest, P. B., DeCesar, M. E., Dolch, T., Ellis, J. A., Ferdman, R. D., Ferrara, E. C., Fonseca, E., Garver-Daniels, N., Jones, G., Lam, M. T., Levin, L., Lewandowska, N., Lorimer, D. R., Lynch, R. S., Madison, D. R., Ng, C., Nice, D. J., Pennucci, T. T., Ransom, S. M., Ray, P., Stairs, I. H., Stovall, K., Swiggum, J. K., Zhu, W. W.

“…Abstract In this work, we present polarization profiles for 23 millisecond pulsars observed at 820 and 1500 MHz with the Green Bank Telescope as part of the…”
Get full text

A Deep Targeted Search for Fast Radio Bursts from the Sites of Low-redshift Short Gamma-Ray Bursts by Madison, D. R., Agarwal, D., Aggarwal, K., Young, O., Cromartie, H. T., Lam, M. T., Chatterjee, S., Cordes, J. M., Garver-Daniels, N., Lorimer, D. R., Lynch, R. S., McLaughlin, M. A., Ransom, S. M., Wharton, R. S.

“…Some short gamma-ray bursts (SGRBs) are thought to be caused by the mergers of binary neutron stars which may sometimes produce massive neutron star remnants…”
Get full text

Accuracy of regenerating motor neurons: Influence of diffusion in denervated nerve by Madison, R.D, Robinson, G.A

“…Graphical abstract…”
Get full text

The specificity of motor neurone regeneration (preferential reinnervation) by Madison, R. D., Robinson, G. A., Chadaram, S. R.

“…The major determinant of functional recovery after lesions in the peripheral nervous system is the accurate regeneration of axons to their original target…”
Get full text

Axotomized mouse retinal ganglion cells containing melanopsin show enhanced survival, but not enhanced axon regrowth into a peripheral nerve graft by Robinson, G.A., Madison, R.D.

“…Melanopsin is found in only ∼2% of mouse retinal ganglion cells (RGCs), making these RGCs uniquely and directly photosensitive. Given that the majority of RGCs…”
Get full text

Schwann cell influence on motor neuron regeneration accuracy by Madison, R.D, Sofroniew, M.V, Robinson, G.A

“…Abstract Extensive peripheral nerve injuries can result in the effective paralysis of the entire limb or distal portions of the limb. The major determinant of…”
Get full text

ASSESSING PULSAR TIMING ARRAY SENSITIVITY TO GRAVITATIONAL WAVE BURSTS WITH MEMORY by Madison, D R, Cordes, J M, Chatterjee, S

“…Highly energetic astrophysical phenomena like supermassive black hole binary (SMBHB) mergers are predicted to emit prodigious amounts of gravitational waves…”
Get full text

Monkey median nerve repaired by nerve graft or collagen nerve guide tube by Archibald, SJ, Shefner, J, Krarup, C, Madison, RD

“…Nerve regeneration was followed in 15 median and 1 ulnar nerve of eight Macaca fascicularis monkeys by serial electrophysiological assessments over a period of…”
Get full text

Modeling the Uncertainties of Solar System Ephemerides for Robust Gravitational-wave Searches with Pulsar-timing Arrays by Vallisneri, M., Taylor, S. R., Simon, J., Folkner, W. M., Park, R. S., Cutler, C., Ellis, J. A., Lazio, T. J. W., Vigeland, S. J., Aggarwal, K., Arzoumanian, Z., Baker, P. T., Brazier, A., Brook, P. R., Burke-Spolaor, S., Chatterjee, S., Cordes, J. M., Cornish, N. J., Crawford, F., Cromartie, H. T., Crowter, K., DeCesar, M., Demorest, P. B., Dolch, T., Ferdman, R. D., Ferrara, E. C., Fonseca, E., Garver-Daniels, N., Gentile, P., Good, D., Hazboun, J. S., Holgado, A. M., Huerta, E. A., Islo, K., Jennings, R., Jones, G., Jones, M. L., Kaplan, D. L., Kelley, L. Z., Key, J. S., Lam, M. T., Levin, L., Lorimer, D. R., Luo, J., Lynch, R. S., Madison, D. R., McLaughlin, M. A., McWilliams, S. T., Mingarelli, C. M. F., Ng, C., Nice, D. J., Pennucci, T. T., Pol, N. S., Ransom, S. M., Ray, P. S., Siemens, X., Spiewak, R., Stairs, I. H., Stinebring, D. R., Stovall, K., Swiggum, J. K., van Haasteren, R., Witt, C. A., Zhu, W. W.

“…The regularity of pulsar emissions becomes apparent once we reference the pulses' times of arrivals to the inertial rest frame of the solar system. It follows…”
Get full text

THE BENEFITS OF VLBI ASTROMETRY TO PULSAR TIMING ARRAY SEARCHES FOR GRAVITATIONAL RADIATION by Madison, D R, Chatterjee, S, Cordes, J M

“…Precision astrometry is an integral component of successful pulsar timing campaigns. Astrometric parameters are commonly derived by fitting them as parameters…”
Get full text

Searching for gravitational wave memory bursts with the Parkes Pulsar Timing Array by Wang, J. B., Hobbs, G., Coles, W., Shannon, R. M., Zhu, X. J., Madison, D. R., Kerr, M., Ravi, V., Keith, M. J., Manchester, R. N., Levin, Y., Bailes, M., Bhat, N. D. R., Burke-Spolaor, S., Dai, S., Osłowski, S., van Straten, W., Toomey, L., Wang, N., Wen, L.

“…Anisotropic bursts of gravitational radiation produced by events such as supermassive black hole mergers leave permanent imprints on space. Such gravitational…”
Get full text

A Second Chromatic Timing Event of Interstellar Origin toward PSR J1713+0747 by Lam, M. T., Ellis, J. A., Grillo, G., Jones, M. L., Hazboun, J. S., Brook, P. R., Turner, J. E., Chatterjee, S., Cordes, J. M., Lazio, T. J. W., DeCesar, M. E., Arzoumanian, Z., Blumer, H., Cromartie, H. T., Demorest, P. B., Dolch, T., Ferdman, R. D., Ferrara, E. C., Fonseca, E., Garver-Daniels, N., Gentile, P. A., Gupta, V., Lorimer, D. R., Lynch, R. S., Madison, D. R., McLaughlin, M. A., Ng, C., Nice, D. J., Pennucci, T. T., Ransom, S. M., Spiewak, R., Stairs, I. H., Stinebring, D. R., Stovall, K., Swiggum, J. K., Vigeland, S. J., Zhu, W. W.

“…The frequency dependence of radio pulse arrival times provides a probe of structures in the intervening media. Demorest et al. was the first to show a…”
Get full text

THE NANOGRAV NINE-YEAR DATA SET: EXCESS NOISE IN MILLISECOND PULSAR ARRIVAL TIMES by Lam, M. T., Cordes, J. M., Chatterjee, S., Arzoumanian, Z., Crowter, K., Demorest, P. B., Dolch, T., Ellis, J. A, Ferdman, R. D., Fonseca, E., Gonzalez, M. E., Jones, G., Jones, M. L., Levin, L., Madison, D. R., McLaughlin, M. A., Nice, D. J., Pennucci, T. T., Ransom, S. M., Shannon, R. M., Siemens, X., Stairs, I. H., Stovall, K., Swiggum, J. K., Zhu, W. W.

“…ABSTRACT Gravitational wave (GW) astronomy using a pulsar timing array requires high-quality millisecond pulsars (MSPs), correctable interstellar propagation…”
Get full text

GRAVITATIONAL WAVES FROM INDIVIDUAL SUPERMASSIVE BLACK HOLE BINARIES IN CIRCULAR ORBITS: LIMITS FROM THE NORTH AMERICAN NANOHERTZ OBSERVATORY FOR GRAVITATIONAL WAVES by Arzoumanian, Z., Brazier, A., Burke-Spolaor, S., Chamberlin, S. J., Chatterjee, S., Cordes, J. M., Demorest, P. B., Deng, X., Dolch, T., Ellis, J. A., Ferdman, R. D., Garver-Daniels, N., Jenet, F., Jones, G., Kaspi, V. M., Koop, M., Lam, M. T., Lazio, T. J. W., Lommen, A. N., Lorimer, D. R., Luo, J., Lynch, R. S., Madison, D. R., McLaughlin, M. A., McWilliams, S. T., Nice, D. J., Palliyaguru, N., Pennucci, T. T., Ransom, S. M., Sesana, A., Siemens, X., Stairs, I. H., Stinebring, D. R., Stovall, K., Swiggum, J., Vallisneri, M., van Haasteren, R., Wang, Y., Zhu, and W. W.

“…We perform a search for continuous gravitational waves from individual supermassive black hole binaries using robust frequentist and Bayesian techniques. We…”
Get full text

Detection and localization of single-source gravitational waves with pulsar timing arrays by Zhu, X.-J., Wen, L., Hobbs, G., Zhang, Y., Wang, Y., Madison, D. R., Manchester, R. N., Kerr, M., Rosado, P. A., Wang, J.-B.

“…Pulsar timing arrays (PTAs) can be used to search for very low frequency (10−9–10−7 Hz) gravitational waves (GWs). In this paper, we present a general method…”
Get full text

The NANOGrav 11 yr Data Set: Evolution of Gravitational-wave Background Statistics by Hazboun, J. S., Simon, J., Taylor, S. R., Lam, M. T., Vigeland, S. J., Islo, K., Key, J. S., Arzoumanian, Z., Baker, P. T., Brazier, A., Brook, P. R., Burke-Spolaor, S., Chatterjee, S., Cordes, J. M., Cornish, N. J., Crawford, F., Crowter, K., Cromartie, H. T., DeCesar, M., Demorest, P. B., Dolch, T., Ellis, J. A., Ferdman, R. D., Ferrara, E., Fonseca, E., Garver-Daniels, N., Gentile, P., Good, D., Holgado, A. M., Huerta, E. A., Jennings, R., Jones, G., Jones, M. L., Kaiser, A. R., Kaplan, D. L., Kelley, L. Z., Lazio, T. J. W., Levin, L., Lommen, A. N., Lorimer, D. R., Luo, J., Lynch, R. S., Madison, D. R., McLaughlin, M. A., McWilliams, S. T., Mingarelli, C. M. F., Ng, C., Nice, D. J., Pennucci, T. T., Pol, N. S., Ransom, S. M., Ray, P. S., Siemens, X., Spiewak, R., Stairs, I. H., Stinebring, D. R., Stovall, K., Swiggum, J., Turner, J. E., Vallisneri, M., van Haasteren, R., Witt, C. A., Zhu, W. W.

“…An ensemble of inspiraling supermassive black hole binaries should produce a stochastic background of very low frequency gravitational waves. This stochastic…”
Get full text

The NANOGrav 11 yr Data Set: Solar Wind Sounding through Pulsar Timing by Madison, D. R., Cordes, J. M., Arzoumanian, Z., Chatterjee, S., Crowter, K., DeCesar, M. E., Demorest, P. B., Dolch, T., Ellis, J. A., Ferdman, R. D., Ferrara, E. C., Fonseca, E., Gentile, P. A., Jones, G., Jones, M. L., Lam, M. T., Levin, L., Lorimer, D. R., Lynch, R. S., McLaughlin, M. A., Mingarelli, C. M. F., Ng, C., Nice, D. J., Pennucci, T. T., Ransom, S. M., Ray, P. S., Spiewak, R., Stairs, I. H., Stovall, K., Swiggum, J. K., Zhu, W. W.

“…The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has observed dozens of millisecond pulsars for over a decade. We have accrued a…”
Get full text

The Green Bank 820 MHz Pulsar Survey. I. Survey Overview and Initial Results by McEwen, A. E., Lynch, R. S., Kaplan, D. L., Bolda, C., Sengar, R., Fonseca, E., Agoudemos, T., Boyles, J., Chatterjee, S., Cohen, T., Crawford, F., DeCesar, M. E., Ehlke, A., Fernandez, T., Ferrara, E. C., Fiore, W., Gilhaus, N., Gleiter, M., Hessels, J. W. T., Holman, T., Joy, A., Kaspi, V., Kondratiev, V., Leon, H. D., Levin, L., Lorenz, B., Lorimer, D. R., Madison, D. R., McLaughlin, M. A., Meyers, B. W., Parent, E., Patron, L., Ransom, S. M., Ray, P. S., Roberts, M. S., Roch, S., Siemens, X., Stearns, G., Swiggum, J. K., Stairs, I. H., Stovall, K., Tan, C. M., Valentine, N., van Leeuwen, J.

“…Abstract The Green Bank 820 MHz pulsar survey covers ≃173 deg 2 in the Cygnus X region of the Galaxy, centered on l = 84.°5 and b = 1.°5. Significant star…”
Get full text

Erratum: “The NANOGrav 12.5 yr Data Set: Polarimetry and Faraday Rotation Measures from Observations of Millisecond Pulsars with the Green Bank Telescope” (2022, ApJ, 926, 168) by Wahl, H. M., McLaughlin, M. A., Gentile, P. A., Jones, M. L., Spiewak, R., Arzoumanian, Z., Crowter, K., Demorest, P. B., DeCesar, M. E., Dolch, T., Ellis, J. A., Ferdman, R. D., Ferrara, E. C., Fonseca, E., Garver-Daniels, N., Jones, G., Lam, M. T., Levin, L., Lewandowska, N., Lorimer, D. R., Lynch, R. S., Madison, D. R., Ng, C., Nice, D. J., Pennucci, T. T., Ransom, S. M., Ray, P., Stairs, I. H., Stovall, K., Swiggum, J. K., Zhu, W. W.

Get full text