Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Nieder L"'
Autor:
Burgay, M., Nieder, L., Clark, C. J., Freire, P. C. C., Buchner, S., Thongmeearkom, T., Turner, J. D., Carli, E., Cognard, I., Grießmeier, J. M., Karuppusamy, R., Bernadich, M. C. i, Possenti, A., Krishnan, V. Venkatraman, Breton, R. P., Barr, E. D., Stappers, B. W., Kramer, M., Levin, L., Ransom, S. M., Padmanabh, P. V.
Publikováno v:
A&A, 691, A315 (2024)
This paper presents the results of a joint radio and gamma-ray timing campaign on the nine millisecond pulsars (MSPs) discovered as part of the L-band targeted survey of Fermi-LAT sources performed in the context of the Transients and Pulsars with Me
Externí odkaz:
http://arxiv.org/abs/2411.14895
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:
Bangale, P., Bhattacharyya, B., Camilo, F., Clark, C. J., Cognard, I., DeCesar, M. E., Ferrara, E. C., Gentile, P., Guillemot, L., Hessels, J. W. T., Johnson, T. J., Kerr, M., McLaughlin, M. A., Nieder, L., Ransom, S. M., Ray, P. S., Roberts, M. S. E., Roy, J., Sanpa-Arsa, S., Theureau, G., Wolff, M. T.
Publikováno v:
ApJ, Vol 966, 20 pp. (2024)
We have searched for radio pulsations towards 49 Fermi Large Area Telescope (LAT) 1FGL Catalog $\gamma$-ray sources using the Green Bank Telescope at 350 MHz. We detected 18 millisecond pulsars (MSPs) in blind searches of the data; 10 of these were d
Externí odkaz:
http://arxiv.org/abs/2402.09366
Autor:
Padmanabh, P. V., Barr, E. D., Sridhar, S. S., Rugel, M. R., Damas-Segovia, A., Jacob, A. M., Balakrishnan, V., Berezina, M., Bernadich, M. C. i, Brunthaler, A., Champion, D. J., Freire, P. C. C., Khan, S., Klöckner, H. -R., Kramer, M., Ma, Y. K., Mao, S. A., Men, Y. P., Menten, K. M., Sengupta, S., Krishnan, V. Venkatraman, Wucknitz, O., Wyrowski, F., Bezuidenhout, M. C., Buchner, S., Burgay, M., Chen, W., Clark, C. J., Künkel, L., Nieder, L., Stappers, B., Legodi, L. S., Nyamai, M. M.
Galactic plane radio surveys play a key role in improving our understanding of a wide range of astrophysical phenomena. Performing such a survey using the latest interferometric telescopes produces large data rates necessitating a shift towards fully
Externí odkaz:
http://arxiv.org/abs/2303.09231
Autor:
Clark, C. J., Kerr, M., Barr, E. D., Bhattacharyya, B., Breton, R. P., Bruel, P., Camilo, F., Chen, W., Cognard, I., Cromartie, H. T., Deneva, J., Dhillon, V. S., Guillemot, L., Kennedy, M. R., Kramer, M., Lyne, A. G., Sánchez, D. Mata, Nieder, L., Phillips, C., Ransom, S. M., Ray, P. S., Roberts, M. S. E., Roy, J., Smith, D. A., Spiewak, R., Stappers, B. W., Tabassum, S., Theureau, G., Voisin, G.
Reliable neutron star mass measurements are key to determining the equation-of-state of cold nuclear matter, but these are rare. "Black Widows" and "Redbacks" are compact binaries consisting of millisecond pulsars and semi-degenerate companion stars.
Externí odkaz:
http://arxiv.org/abs/2301.10995
Autor:
Clark, C. J., Breton, R. P., Barr, E. D., Burgay, M., Thongmeearkom, T., Nieder, L., Buchner, S., Stappers, B., Kramer, M., Becker, W., Mayer, M., Phosrisom, A., Ashok, A., Bezuidenhout, M. C., Calore, F., Cognard, I., Freire, P. C. C., Geyer, M., Grießmeier, J. -M., Karuppusamy, R., Levin, L., Padmanabh, P. V., Possenti, A., Ransom, S., Serylak, M., Krishnan, V. Venkatraman, Vleeschower, L., Behrend, J., Champion, D. J., Chen, W., Horn, D., Keane, E. F., Künkel, L., Men, Y., Ridolfi, A., Dhillon, V. S., Marsh, T. R., Papa, M. A.
Publikováno v:
MNRAS, 519, 5590-5606 (2023)
More than 100 millisecond pulsars (MSPs) have been discovered in radio observations of gamma-ray sources detected by the Fermi Large Area Telescope (LAT), but hundreds of pulsar-like sources remain unidentified. Here we present the first results from
Externí odkaz:
http://arxiv.org/abs/2212.08528
Autor:
Ajello, M., Atwood, W. B., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Berretta, A., Bhattacharyya, B., Bissaldi, E., Blandford, R. D., Bloom, E., Bonino, R., Bruel, P., Buehler, R., Burns, E., Buson, S., Cameron, R. A., Caraveo, P. A., Cavazzuti, E., Cibrario, N., Ciprini, S., Clark, C. J., Cognard, I., Coronado-Blázquez, J., Crnogorcevic, M., Cromartie, H., Crowter, K., Cutini, S., D'Ammando, F., Gaetano, S. D., Palma, F. d., Digel, S. W., Lalla, N. D., Dirirsa, F. Fan., Venere, L. D., Domínguez, A., Ferrara, E. C., Fiori, A., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gammaldi, V., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Gustafsson, M., Harding, A. K., Hays, E., Hewitt, J. W., Horan, D., Hou, X., Jóhannesson, G., Keith, M. J., Kerr, M., Kramer, M., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Maldera, S., Manfreda, A., Martí-Devesa, G., Mazziotta, M. N., Mereu, I., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Negro, M., Nieder, L., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Parthasarathy, A., Pei, Z., Persic, M., Pesce-Rollins, M., Pillera, R., Poon, H., Porter, T. A., Principe, G., Racusin, J. L., Rainò, S., Rando, R., Rani, B., Ransom, S. M., Ray, P. S., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Roy, J., Sánchez-Conde, M., Parkinson, P. M. Sa., Scargle, J., Scotton, L., Serini, D., Sgrò, C., Siskind, E. J., Smith, D. A., Spandre, G., Spiewak, R., Spinelli, P., Stairs, I., Suson, D. J., Swihart, S. J., Tabassum, S., Thayer, J. B., Theureau, G., Torres, D. F., Troja, E., Valverde, J., Wadiasingh, Z., Wood, K., Zaharijas, G.
After large galaxies merge, their central supermassive black holes are expected to form binary systems whose orbital motion generates a gravitational wave background (GWB) at nanohertz frequencies. Searches for this background utilize pulsar timing a
Externí odkaz:
http://arxiv.org/abs/2204.05226
The 559 Hz black-widow pulsar PSR J1555-2908, originally discovered in radio, is also a bright gamma-ray pulsar. Timing its pulsations using 12 yr of Fermi-LAT gamma-ray data reveals long-term variations in its spin frequency that are much larger tha
Externí odkaz:
http://arxiv.org/abs/2202.05482
Autor:
Kennedy, M. R., Breton, R. P., Clark, C. J., Mata-Sanchez, D., Voisin, G., Dhillon, V. S., Halpern, J. P., Marsh, T. R., Nieder, L., Ray, P. S., van Kerkwijk, M. H.
Accurate measurements of the masses of neutron stars are necessary to test binary evolution models, and to constrain the neutron star equation of state. In pulsar binaries with no measurable post-Keplerian parameters, this requires an accurate estima
Externí odkaz:
http://arxiv.org/abs/2202.05111
Autor:
Nieder, L., Clark, C. J., Kandel, D., Romani, R. W., Bassa, C. G., Allen, B., Ashok, A., Cognard, I., Fehrmann, H., Freire, P., Karuppusamy, R., Kramer, M., Li, D., Machenschalk, B., Pan, Z., Papa, M. A., Ransom, S. M., Ray, P. S., Roy, J., Wang, P., Wu, J., Aulbert, C., Barr, E. D., Beheshtipour, B., Behnke, O., Bhattacharyya, B., Breton, R. P., Camilo, F., Choquet, C., Dhillon, V. S., Ferrara, E. C., Guillemot, L., Hessels, J. W. T., Kerr, M., Kwang, S. A., Marsh, T. R., Mickaliger, M. B., Pleunis, Z., Pletsch, H. J., Roberts, M. S. E., Sanpa-arsa, S., Steltner, B.
We report the discovery of 1.97 ms period gamma-ray pulsations from the 75 minute orbital-period binary pulsar now named PSR J1653-0158. The associated Fermi Large Area Telescope gamma-ray source 4FGL J1653.6-0158 has long been expected to harbor a b
Externí odkaz:
http://arxiv.org/abs/2009.01513