Zobrazeno 1 - 10
of 53
pro vyhledávání: '"R. D. Ferdman"'
Autor:
G. Agazie, J. Antoniadis, A. Anumarlapudi, A. M. Archibald, P. Arumugam, S. Arumugam, Z. Arzoumanian, J. Askew, S. Babak, M. Bagchi, M. Bailes, A.-S. Bak Nielsen, P. T. Baker, C. G. Bassa, A. Bathula, B. Bécsy, A. Berthereau, N. D. R. Bhat, L. Blecha, M. Bonetti, E. Bortolas, A. Brazier, P. R. Brook, M. Burgay, S. Burke-Spolaor, R. Burnette, R. N. Caballero, A. Cameron, R. Case, A. Chalumeau, D. J. Champion, S. Chanlaridis, M. Charisi, S. Chatterjee, K. Chatziioannou, B. D. Cheeseboro, S. Chen, Z.-C. Chen, I. Cognard, T. Cohen, W. A. Coles, J. M. Cordes, N. J. Cornish, F. Crawford, H. T. Cromartie, K. Crowter, M. Curyło, C. J. Cutler, S. Dai, S. Dandapat, D. Deb, M. E. DeCesar, D. DeGan, P. B. Demorest, H. Deng, S. Desai, G. Desvignes, L. Dey, N. Dhanda-Batra, V. Di Marco, T. Dolch, B. Drachler, C. Dwivedi, J. A. Ellis, M. Falxa, Y. Feng, R. D. Ferdman, E. C. Ferrara, W. Fiore, E. Fonseca, A. Franchini, G. E. Freedman, J. R. Gair, N. Garver-Daniels, P. A. Gentile, K. A. Gersbach, J. Glaser, D. C. Good, B. Goncharov, A. Gopakumar, E. Graikou, J.-M. Griessmeier, L. Guillemot, K. Gültekin, Y. J. Guo, Y. Gupta, K. Grunthal, J. S. Hazboun, S. Hisano, G. B. Hobbs, S. Hourihane, H. Hu, F. Iraci, K. Islo, D. Izquierdo-Villalba, J. Jang, J. Jawor, G. H. Janssen, R. J. Jennings, A. Jessner, A. D. Johnson, M. L. Jones, B. C. Joshi, A. R. Kaiser, D. L. Kaplan, A. Kapur, F. Kareem, R. Karuppusamy, E. F. Keane, M. J. Keith, L. Z. Kelley, M. Kerr, J. S. Key, D. Kharbanda, T. Kikunaga, T. C. Klein, N. Kolhe, M. Kramer, M. A. Krishnakumar, A. Kulkarni, N. Laal, K. Lackeos, M. T. Lam, W. G. Lamb, B. B. Larsen, T. J. W. Lazio, K. J. Lee, Y. Levin, N. Lewandowska, T. B. Littenberg, K. Liu, T. Liu, Y. Liu, A. Lommen, D. R. Lorimer, M. E. Lower, J. Luo, R. Luo, R. S. Lynch, A. G. Lyne, C.-P. Ma, Y. Maan, D. R. Madison, R. A. Main, R. N. Manchester, R. Mandow, M. A. Mattson, A. McEwen, J. W. McKee, M. A. McLaughlin, N. McMann, B. W. Meyers, P. M. Meyers, M. B. Mickaliger, M. Miles, C. M. F. Mingarelli, A. Mitridate, P. Natarajan, R. S. Nathan, C. Ng, D. J. Nice, I. C. Niţu, K. Nobleson, S. K. Ocker, K. D. Olum, S. Osłowski, A. K. Paladi, A. Parthasarathy, T. T. Pennucci, B. B. P. Perera, D. Perrodin, A. Petiteau, P. Petrov, N. S. Pol, N. K. Porayko, A. Possenti, T. Prabu, H. Quelquejay Leclere, H. A. Radovan, P. Rana, S. M. Ransom, P. S. Ray, D. J. Reardon, A. F. Rogers, J. D. Romano, C. J. Russell, A. Samajdar, S. A. Sanidas, S. C. Sardesai, A. Schmiedekamp, C. Schmiedekamp, K. Schmitz, L. Schult, A. Sesana, G. Shaifullah, R. M. Shannon, B. J. Shapiro-Albert, X. Siemens, J. Simon, J. Singha, M. S. Siwek, L. Speri, R. Spiewak, A. Srivastava, I. H. Stairs, B. W. Stappers, D. R. Stinebring, K. Stovall, J. P. Sun, M. Surnis, S. C. Susarla, A. Susobhanan, J. K. Swiggum, K. Takahashi, P. Tarafdar, J. Taylor, S. R. Taylor, G. Theureau, E. Thrane, N. Thyagarajan, C. Tiburzi, L. Toomey, J. E. Turner, C. Unal, M. Vallisneri, E. van der Wateren, R. van Haasteren, A. Vecchio, V. Venkatraman Krishnan, J. P. W. Verbiest, S. J. Vigeland, H. M. Wahl, S. Wang, Q. Wang, C. A. Witt, J. Wang, L. Wang, K. E. Wayt, Z. Wu, O. Young, L. Zhang, S. Zhang, X.-J. Zhu, A. Zic, The International Pulsar Timing Array Collaboration
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 105 (2024)
The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohertz gravitational-wave background (GWB). Given that each PTA made differ
Externí odkaz:
https://doaj.org/article/e00f429a3ee94af6a8c83dff4afc7336
Autor:
H. M. Wahl, M. A. McLaughlin, P. A. Gentile, M. L. Jones, R. Spiewak, Z. Arzoumanian, K. Crowter, P. B. Demorest, M. E. DeCesar, T. Dolch, J. A. Ellis, R. D. Ferdman, E. C. Ferrara, E. Fonseca, N. Garver-Daniels, G. Jones, M. T. Lam, L. Levin, N. Lewandowska, D. R. Lorimer, R. S. Lynch, D. R. Madison, C. Ng, D. J. Nice, T. T. Pennucci, S. M. Ransom, P. Ray, I. H. Stairs, K. Stovall, J. K. Swiggum, W. W. Zhu
Publikováno v:
The Astrophysical Journal, Vol 926, Iss 2, p 168 (2022)
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 NANOGrav pulsar timing array. We calibrate the data using Mueller matrix solutions calculated from obs
Externí odkaz:
https://doaj.org/article/2f21f50e9c884ea185ffec406761b159
Autor:
M. Kramer, I. H. Stairs, R. N. Manchester, N. Wex, A. T. Deller, W. A. Coles, M. Ali, M. Burgay, F. Camilo, I. Cognard, T. Damour, G. Desvignes, R. D. Ferdman, P. C. C. Freire, S. Grondin, L. Guillemot, G. B. Hobbs, G. Janssen, R. Karuppusamy, D. R. Lorimer, A. G. Lyne, J. W. McKee, M. McLaughlin, L. E. Münch, B. B. P. Perera, N. Pol, A. Possenti, J. Sarkissian, B. W. Stappers, G. Theureau
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041050 (2021)
Continued timing observations of the double pulsar PSR J0737–3039A/B, which consists of two active radio pulsars (A and B) that orbit each other with a period of 2.45 h in a mildly eccentric (e=0.088) binary system, have led to large improvements i
Externí odkaz:
https://doaj.org/article/5c935e0afc3243b2b078b84b116ee712
Autor:
E. Parent, H. Sewalls, P. C. C. Freire, T. Matheny, A. G. Lyne, B. B. P. Perera, F. Cardoso, M. A. McLaughlin, B. Allen, A. Brazier, F. Camilo, S. Chatterjee, J. M. Cordes, F. Crawford, J. S. Deneva, F. A. Dong, R. D. Ferdman, E. Fonseca, J. W. T. Hessels, V. M. Kaspi, B. Knispel, J. van Leeuwen, R. S. Lynch, B. M. Meyers, J. W. McKee, M. B. Mickaliger, C. Patel, S. M. Ransom, A. Rochon, P. Scholz, I. H. Stairs, B. W. Stappers, C. M. Tan, W. W. Zhu
Publikováno v:
The Astrophysical Journal
Astrophysical Journal, 924(2):135. IOP Publishing Ltd.
Astrophysical Journal, 924(2):135. IOP Publishing Ltd.
We present new discoveries and results from long-term timing of 72 pulsars discovered in the Arecibo PALFA survey, including precise determination of astrometric and spin parameters, and flux density and scatter broadening measurements at 1.4 GHz. No
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2334dca90b968343b0610deb8d035b67
https://ueaeprints.uea.ac.uk/id/eprint/83133/
https://ueaeprints.uea.ac.uk/id/eprint/83133/
Autor:
H. M. Wahl, M. A. McLaughlin, P. A. Gentile, M. L. Jones, R. Spiewak, Z. Arzoumanian, K. Crowter, P. B. Demorest, M. E. DeCesar, T. Dolch, J. A. Ellis, R. D. Ferdman, E. C. Ferrara, E. Fonseca, N. Garver-Daniels, G. Jones, M. T. Lam, L. Levin, N. Lewandowska, D. R. Lorimer, R. S. Lynch, D. R. Madison, C. Ng, D. J. Nice, T. T. Pennucci, S. M. Ransom, P. Ray, I. H. Stairs, K. Stovall, J. K. Swiggum, W. W. Zhu
Publikováno v:
The Astrophysical Journal. 941:210
Autor:
R. van Haasteren, Y. Levin, G. H. Janssen, K. Lazaridis, M. Kramer, B. W. Stappers, G. Desvignes, M. B. Purver, A. G. Lyne, R. D. Ferdman, A. Jessner, I. Cognard, G. Theureau, N. D’Amico, A. Possenti, M. Burgay, A. Corongiu, J. W. T. Hessels, R. Smits, J. P. W. Verbiest
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 414:3117-3128
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
Autor:
D. J. Champion, G. B. Hobbs, R. N. Manchester, R. T. Edwards, D. C. Backer, M. Bailes, N. D. R. Bhat, S. Burke-Spolaor, W. Coles, P. B. Demorest, R. D. Ferdman, W. M. Folkner, A. W. Hotan, M. Kramer, A. N. Lommen, D. J. Nice, M. B. Purver, J. M. Sarkissian, I. H. Stairs, W. van Straten, J. P. W. Verbiest, D. R. B. Yardley, Marta Burgay, Nicolò D’Amico, Paolo Esposito, Alberto Pellizzoni, Andrea Possenti
Publikováno v:
AIP Conference Proceedings.
High‐precision pulsar timing relies on a solar system ephemeris in order to convert times of arrival (TOAs) of pulses measured at an observatory to the solar system barycenter. Any error in the conversion to the barycentric TOAs leads to a systemat
Autor:
B. B. P. Perera, M. A. McLaughlin, M. Kramer, I. H. Stairs, R. D. Ferdman, P. C. C. Freire, A. Possenti, R. P. Breton, R. N. Manchester, M. Burgay, A. G. Lyne, F. Camilo, Marta Burgay, Nicolò D’Amico, Paolo Esposito, Alberto Pellizzoni, Andrea Possenti
Publikováno v:
AIP Conference Proceedings.
We present the evolution of the radio emission from the 2.8‐s pulsar of the double pulsar system PSR J0737−3039A/B. We describe the changes in the pulse profile and flux density over five years of observations, culminating in the B pulsar’s rad
Autor:
R. D. Ferdman, I. H. Stairs, M. Kramer, R. N. Manchester, A. G. Lyne, R. P. Breton, M. A. McLaughlin, A. Possenti, M. Burgay, C. Bassa, Z. Wang, A. Cumming, V. M. Kaspi
Publikováno v:
AIP Conference Proceedings.
The double pulsar system PSR J0737-3039A/B is a highly relativistic double neutron star (DNS) binary, with a 2.4-hour orbital period. The low mass of the second-formed NS, as well the low system eccentricity and proper motion, point to a different ev
Autor:
A Chalumeau, S Babak, A Petiteau, S Chen, A Samajdar, R N Caballero, G Theureau, L Guillemot, G Desvignes, A Parthasarathy, K Liu, G Shaifullah, H Hu, E van der Wateren, J Antoniadis, A-S Bak Nielsen, C G Bassa, A Berthereau, M Burgay, D J Champion, I Cognard, M Falxa, R D Ferdman, P C C Freire, J R Gair, E Graikou, Y J Guo, J Jang, G H Janssen, R Karuppusamy, M J Keith, M Kramer, K J Lee, X J Liu, A G Lyne, R A Main, J W McKee, M B Mickaliger, B B P Perera, D Perrodin, N K Porayko, A Possenti, S A Sanidas, A Sesana, L Speri, B W Stappers, C Tiburzi, A Vecchio, J P W Verbiest, J Wang, L Wang, H Xu
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly notices of the Royal Astronomical Society
Chalumeau, A, Babak, S, Petiteau, A, Chen, S, Samajdar, A, Caballero, R N, Theureau, G, Guillemot, L, Desvignes, G, Parthasarathy, A, Liu, K, Shaifullah, G, Hu, H, Van der wateren, E, Antoniadis, J, Bak nielsen, A, Bassa, C G, Berthereau, A, Burgay, M, Champion, D J, Cognard, I, Falxa, M, Ferdman, R D, Freire, P C C, Gair, J R, Graikou, E, Guo, Y J, Jang, J, Janssen, G H, Karuppusamy, R, Keith, M J, Kramer, M, Lee, K J, Liu, X J, Lyne, A G, Main, R A, Mckee, J W, Mickaliger, M B, Perera, B B P, Perrodin, D, Porayko, N K, Possenti, A, Sanidas, S A, Sesana, A, Speri, L, Stappers, B W, Tiburzi, C, Vecchio, A, Verbiest, J P W, Wang, J, Wang, L & Xu, H 2021, ' Noise analysis in the European Pulsar Timing Array data release 2 and its implications on the gravitational-wave background search ', Monthly Notices of the Royal Astronomical Society, vol. 509, no. 4, pp. 5538-5558 . https://doi.org/10.1093/mnras/stab3283
Monthly Notices of the Royal Astronomical Society, 509, 4, pp. 5538-5558
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2021, 509 (4), pp.5538-5558. ⟨10.1093/mnras/stab3283⟩
Monthly Notices of the Royal Astronomical Society, 509, 5538-5558
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 509 (4), pp.5538-5558. ⟨10.1093/mnras/stab3283⟩
Monthly notices of the Royal Astronomical Society
Chalumeau, A, Babak, S, Petiteau, A, Chen, S, Samajdar, A, Caballero, R N, Theureau, G, Guillemot, L, Desvignes, G, Parthasarathy, A, Liu, K, Shaifullah, G, Hu, H, Van der wateren, E, Antoniadis, J, Bak nielsen, A, Bassa, C G, Berthereau, A, Burgay, M, Champion, D J, Cognard, I, Falxa, M, Ferdman, R D, Freire, P C C, Gair, J R, Graikou, E, Guo, Y J, Jang, J, Janssen, G H, Karuppusamy, R, Keith, M J, Kramer, M, Lee, K J, Liu, X J, Lyne, A G, Main, R A, Mckee, J W, Mickaliger, M B, Perera, B B P, Perrodin, D, Porayko, N K, Possenti, A, Sanidas, S A, Sesana, A, Speri, L, Stappers, B W, Tiburzi, C, Vecchio, A, Verbiest, J P W, Wang, J, Wang, L & Xu, H 2021, ' Noise analysis in the European Pulsar Timing Array data release 2 and its implications on the gravitational-wave background search ', Monthly Notices of the Royal Astronomical Society, vol. 509, no. 4, pp. 5538-5558 . https://doi.org/10.1093/mnras/stab3283
Monthly Notices of the Royal Astronomical Society, 509, 4, pp. 5538-5558
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2021, 509 (4), pp.5538-5558. ⟨10.1093/mnras/stab3283⟩
Monthly Notices of the Royal Astronomical Society, 509, 5538-5558
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 509 (4), pp.5538-5558. ⟨10.1093/mnras/stab3283⟩
The European Pulsar Timing Array (EPTA) collaboration has recently released an extended data set for six pulsars (DR2) and reported evidence for a common red noise signal. Here we present a noise analysis for each of the six pulsars. We consider seve