Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Vleeschower, L"'
Autor:
Padmanabh, P. V., Ransom, S. M., Freire, P. C. C., Ridolfi, A., Taylor, J. D., Choza, C., Clark, C. J., Abbate, F., Bailes, M., Barr, E. D., Buchner, S., Burgay, M., DeCesar, M. E., Chen, W., Corongiu, A., Champion, D. J., Dutta, A., Geyer, M., Hessels, J. W. T., Kramer, M., Possenti, A., Stairs, I. H., Stappers, B. W., Krishnan, V. Venkatraman, Vleeschower, L., Zhang, L.
Publikováno v:
A&A 686, A166 (2024)
We report the discovery of ten new pulsars in the globular cluster Terzan 5 as part of the Transients and Pulsars with MeerKAT (TRAPUM) Large Survey Project. We observed Terzan 5 at L-band (856--1712 MHz) with the MeerKAT radio telescope for four hou
Externí odkaz:
http://arxiv.org/abs/2403.17799
Autor:
Vleeschower, L., Corongiu, A., Stappers, B. W., Freire, P. C. C., Ridolfi, A., Abbate, F., Ransom, S. M., Possenti, A., Padmanabh, P. V., Balakrishnan, V., Kramer, M., Krishnan, V. Venkatraman, Zhang, L., Bailes, M., Barr, E. D., Buchner, S., Chen, W.
Using MeerKAT, we have discovered three new millisecond pulsars (MSPs) in the bulge globular cluster M62: M62H, M62I, and M62J. All three are in binary systems, which means all ten known pulsars in the cluster are in binaries. M62H has a planetary-ma
Externí odkaz:
http://arxiv.org/abs/2403.12137
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:
Chen, W., Freire, P. C. C., Ridolfi, A., Barr, E. D., Stappers, B., Kramer, M., Possenti, A., Ransom, S. M., Levin, L., Breton, R. P., Burgay, M., Camilo, F., Buchner, S., Champion, D. J., Abbate, F., Krishnan, V. Venkatraman, Padmanabh, P. V., Gautam, T., Vleeschower, L., Geyer, M., Grießmeier, J-M., Men, Y. P., Balakrishnan, V., Bezuidenhout, M. C.
The most massive globular cluster in our Galaxy, Omega Centauri, is an interesting target for pulsar searches, because of its multiple stellar populations and the intriguing possibility that it was once the nucleus of a galaxy that was absorbed into
Externí odkaz:
http://arxiv.org/abs/2301.03864
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:
Abbate, F., Possenti, A., Ridolfi, A., Krishnan, V. Venkatraman, Buchner, S., Barr, E. D., Bailes, M., Kramer, M., Cameron, A., Parthasarathy, A., van Straten, W., Chen, W., Camilo, F., Padmanabh, P. V., Mao, S. A., Freire, P. C. C., Ransom, S. M., Vleeschower, L., Geyer, M., Zhang, L.
We present the polarization profiles of 22 pulsars in the globular cluster 47 Tucanae using observations from the MeerKAT radio telescope at UHF-band (544-1088 MHz) and report precise values of dispersion measure (DM) and rotation measure (RM). We us
Externí odkaz:
http://arxiv.org/abs/2211.03815
Autor:
Vleeschower, L., Stappers, B. W., Bailes, M., Barr, E. D., Kramer, M., Ransom, S., Ridolfi, A., Krishnan, V. Venkatraman, Possenti, A., Keith, M. J., Burgay, M., Freire, P. C. C., Spiewak, R., Champion, D. J., Bezuidenhout, M. C., Niţu, I. C., Chen, W., Parthasarathy, A., DeCesar, M. E., Buchner, S., Stairs, I. H., Hessels, J. W. T.
Using the MeerKAT radio telescope, a series of observations have been conducted to time the known pulsars and search for new pulsars in the globular cluster NGC 6440. As a result, two pulsars have been discovered, NGC 6440G and NGC 6440H, one of whic
Externí odkaz:
http://arxiv.org/abs/2204.00086
Autor:
Ridolfi, A., Freire, P. C. C., Gautam, T., Ransom, S. M., Barr, E. D., Buchner, S., Burgay, M., Abbate, F., Krishnan, V. Venkatraman, Vleeschower, L., Possenti, A., Stappers, B. W., Kramer, M., Chen, W., Padmanabh, P. V., Champion, D. J., Bailes, M., Levin, L., Keane, E. F., Breton, R. P., Bezuidenhout, M., Grießmeier, J. -M., Künkel, L., Men, Y., Camilo, F., Geyer, M., Hugo, B. V., Jameson, A., Parthasarathy, A., Serylak, M.
Publikováno v:
A&A 664, A27 (2022)
We report the discovery of 13 new pulsars in the globular cluster NGC 1851 by the TRAPUM Large Survey Project using the MeerKAT radio telescope. The discoveries consist of six isolated millisecond pulsars (MSPs) and seven binary pulsars, of which six
Externí odkaz:
http://arxiv.org/abs/2203.12302
Autor:
Ridolfi, A., Gautam, T., Freire, P. C. C., Ransom, S. M., Buchner, S. J., Possenti, A., Krishnan, V. Venkatraman, Bailes, M., Kramer, M., Stappers, B. W., Abbate, F., Barr, E. D., Burgay, M., Camilo, F., Corongiu, A., Jameson, A., Padmanabh, P. V., Vleeschower, L., Champion, D. J., Geyer, M., Karastergiou, A., Karuppusamy, R., Parthasarathy, A., Reardon, D. J., Serylak, M., Shannon, R. M., Spiewak, R.
We have used the central 44 antennas of the new 64-dish MeerKAT radio telescope array to conduct a deep search for new pulsars in the core of nine globular clusters. This has led to the discovery of eight new millisecond pulsars in six different clus
Externí odkaz:
http://arxiv.org/abs/2103.04800
Autor:
Vleeschower, L, Corongiu, A, Stappers, B W, Freire, P C C, Ridolfi, A, Abbate, F, Ransom, S M, Possenti, A, Padmanabh, P V, Balakrishnan, V, Kramer, M, Venkatraman Krishnan, V, Zhang, L, Bailes, M, Barr, E D, Buchner, S, Chen, W
Publikováno v:
Monthly Notices of the Royal Astronomical Society; May2024, Vol. 530 Issue 2, p1436-1456, 21p
