Zobrazeno 41 - 50
of 777
pro vyhledávání: '"Kaspi, V. M."'
Autor:
Kawash, A. M., McLaughlin, M. A., Kaplan, D. L., DeCesar, M. E., Levin, L., Lorimer, D. R., Lynch, R. S., Stovall, K., Swiggum, J. K., Fonseca, E., Archibald, A. M., Banaszak, S., Biwer, C. M., Boyles, J., Cui, B., Dartez, L. P., Day, D., Ernst, S., Ford, A. J., Flanigan, J., Heatherly, S. A., Hessels, J. W. T., Hinojosa, J., Jenet, F. A., Karako-Argaman, C., Kaspi, V. M., Kondratiev, V. I., Leake, S., Lunsford, G., Martinez, J. G., Mata, A., Matheny, T. D., Mcewen, A. E., Mingyar, M. G., Orsini, A. L., Ransom, S. M., Roberts, M. S. E., Rohr, M. D., Siemens, X., Spiewak, R., Stairs, I. H., van Leeuwen, J., Walker, A. N., Wells, B. L.
We present timing solutions for ten pulsars discovered in 350 MHz searches with the Green Bank Telescope. Nine of these were discovered in the Green Bank Northern Celestial Cap survey and one was discovered by students in the Pulsar Search Collaborat
Externí odkaz:
http://arxiv.org/abs/1803.03587
Autor:
Stovall, K., Freire, P. C. C., Chatterjee, S., Demorest, P. B., Lorimer, D. R., McLaughlin, M. A., Pol, N., van Leeuwen, J., Wharton, R. S., Allen, B., Boyce, M., Brazier, A., Caballero, K., Camilo, F., Camuccio, R., Cordes, J. M., Crawford, F., Deneva, J. S., Ferdman, R. D., Hessels, J. W. T., Jenet, F. A., Kaspi, V. M., Knispel, B., Lazarus, P., Lynch, R., Parent, E., Patel, C., Pleunis, Z., Ransom, S. M., Scholz, P., Seymour, A., Siemens, X., Stairs, I. H., Swiggum, J., Zhu, W. W.
We report the discovery and initial follow-up of a double neutron star (DNS) system, PSR J1946$+$2052, with the Arecibo L-Band Feed Array pulsar (PALFA) survey. PSR J1946$+$2052 is a 17-ms pulsar in a 1.88-hour, eccentric ($e \, =\, 0.06$) orbit with
Externí odkaz:
http://arxiv.org/abs/1802.01707
Autor:
Michilli, D., Seymour, A., Hessels, J. W. T., Spitler, L. G., Gajjar, V., Archibald, A. M., Bower, G. C., Chatterjee, S., Cordes, J. M., Gourdji, K., Heald, G. H., Kaspi, V. M., Law, C. J., Sobey, C., Adams, E. A. K., Bassa, C. G., Bogdanov, S., Brinkman, C., Demorest, P., Fernandez, F., Hellbourg, G., Lazio, T. J. W., Lynch, R. S., Maddox, N., Marcote, B., McLaughlin, M. A., Paragi, Z., Ransom, S. M., Scholz, P., Siemion, A. P. V., Tendulkar, S. P., Van Rooy, P., Wharton, R. S., Whitlow, D.
Fast radio bursts (FRBs) are millisecond-duration, extragalactic radio flashes of unknown physical origin. FRB 121102, the only known repeating FRB source, has been localized to a star-forming region in a dwarf galaxy at redshift z = 0.193, and is sp
Externí odkaz:
http://arxiv.org/abs/1801.03965
Autor:
Arzoumanian, Z., Baker, P. T., Brazier, A., Burke-Spolaor, S., Chamberlin, S. J., Chatterjee, S., Christy, B., Cordes, J. M., Cornish, N. J., Crawford, F., Cromartie, H. Thankful, Crowter, K., DeCesar, M., Demorest, P. B., Dolch, T., Ellis, J. A., Ferdman, R. D., Ferrara, E., Folkner, W. M., Fonseca, E., Garver-Daniels, N., Gentile, P. A., Haas, R., Hazboun, J. S., Huerta, E. A., Islo, K., Jones, G., Jones, M. L., Kaplan, D. L., Kaspi, V. M., Lam, M. T., 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., Park, R. S., Pennucci, T. T., Pol, N. S., Ransom, S. M., Ray, P. S., Rasskazov, A., Siemens, X., Simon, J., Spiewak, R., Stairs, I. H., Stinebring, D. R., Stovall, K., Swiggum, J., Taylor, S. R., Vallisneri, M., Vigeland, S., Zhu, W. W.
Publikováno v:
The Astrophysical Journal, Volume 859, Number 1, 2018
We search for an isotropic stochastic gravitational-wave background (GWB) in the newly released $11$-year dataset from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). While we find no significant evidence for a GWB, we pl
Externí odkaz:
http://arxiv.org/abs/1801.02617
Autor:
Archibald, R. F., Burgay, M., Lyutikov, M., Kaspi, V. M., Esposito, P., Israel, G., Kerr, M., Possenti, A., Rea, N., Sarkissian, J., Scholz, P., Tendulkar, S. P.
Rotation-powered pulsars and magnetars are two different observational manifestations of neutron stars: rotation powered pulsars are rapidly spinning objects that are mostly observed as pulsating radio sources, while magnetars, neutron stars with the
Externí odkaz:
http://arxiv.org/abs/1710.03718
Autor:
Law, C. J., Abruzzo, M. W., Bassa, C. G., Bower, G. C., Burke-Spolaor, S., Butler, B. J., Cantwell, T., Carey, S. H., Chatterjee, S., Cordes, J. M., Demorest, P., Dowell, J., Fender, R., Gourdji, K., Grainge, K., Hessels, J. W. T., Hickish, J., Kaspi, V. M., Lazio, T. J. W., McLaughlin, M. A., Michilli, D., Mooley, K., Perrott, Y. C., Ransom, S. M., Razavi-Ghods, N., Rupen, M., Scaife, A., Scott, P., Scholz, P., Seymour, A., Spitler, L. G., Stovall, K., Tendulkar, S. P., Titterington, D., Wharton, R. S., Williams, P. K. G.
We present results of the coordinated observing campaign that made the first subarcsecond localization of a Fast Radio Burst, FRB 121102. During this campaign, we made the first simultaneous detection of an FRB burst by multiple telescopes: the VLA a
Externí odkaz:
http://arxiv.org/abs/1705.07553
Autor:
Bassa, C. G., Tendulkar, S. P., Adams, E. A. K., Maddox, N., Bogdanov, S., Bower, G. C., Burke-Spolaor, S., Butler, B. J., Chatterjee, S., Cordes, J. M., Hessels, J. W. T., Kaspi, V. M., Law, C. J., Marcote, B., Paragi, Z., Ransom, S. M., Scholz, P., Spitler, L. G., van Langevelde, H. J.
We present optical, near- and mid-infrared imaging of the host galaxy of FRB 121102 with the Gemini North telescope, the Hubble Space Telescope and the Spitzer Space Telescope. The FRB 121102 host galaxy is resolved, revealing a bright star forming r
Externí odkaz:
http://arxiv.org/abs/1705.07698
Autor:
Scholz, P., Bogdanov, S., Hessels, J. W. T., Lynch, R. S., Spitler, L. G., Bassa, C. G., Bower, G. C., Burke-Spolaor, S., Butler, B. J., Chatterjee, S., Cordes, J. M., Gourdji, K., Kaspi, V. M., Law, C. J., Marcote, B., McLaughlin, M. A., Michilli, D., Paragi, Z., Ransom, S. M., Seymour, A., Tendulkar, S. P., Wharton, R. S.
We undertook coordinated campaigns with the Green Bank, Effelsberg, and Arecibo radio telescopes during Chandra X-ray Observatory and XMM-Newton observations of the repeating fast radio burst FRB 121102 to search for simultaneous radio and X-ray burs
Externí odkaz:
http://arxiv.org/abs/1705.07824
Autor:
Chawla, P., Kaspi, V. M., Josephy, A., Rajwade, K. M., Lorimer, D. R., Archibald, A. M., DeCesar, M. E., Hessels, J. W. T., Kaplan, D. L., Karako-Argaman, C., Kondratiev, V. I., Levin, L., Lynch, R. S., McLaughlin, M. A., Ransom, S. M., Roberts, M. S. E., Stairs, I. H., Stovall, K., Swiggum, J. K., van Leeuwen, J.
We report on a search for Fast Radio Bursts (FRBs) with the Green Bank Northern Celestial Cap (GBNCC) Pulsar Survey at 350 MHz. Pointings amounting to a total on-sky time of 61 days were searched to a DM of 3000 pc cm$^{-3}$ while the rest (23 days;
Externí odkaz:
http://arxiv.org/abs/1701.07457
Autor:
Chatterjee, S., Law, C. J., Wharton, R. S., Burke-Spolaor, S., Hessels, J. W. T., Bower, G. C., Cordes, J. M., Tendulkar, S. P., Bassa, C. G., Demorest, P., Butler, B. J., Seymour, A., Scholz, P., Abruzzo, M. W., Bogdanov, S., Kaspi, V. M., Keimpema, A., Lazio, T. J. W., Marcote, B., McLaughlin, M. A., Paragi, Z., Ransom, S. M., Rupen, M., Spitler, L. G., van Langevelde, H. J.
Fast radio bursts are astronomical radio flashes of unknown physical nature with durations of milliseconds. Their dispersive arrival times suggest an extragalactic origin and imply radio luminosities orders of magnitude larger than any other kind of
Externí odkaz:
http://arxiv.org/abs/1701.01098