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2022:
- The upgraded GMRT survey for pulsars in globular clusters. I: Discovery of a millisecond binary pulsar in NGC 6652
T. Gautam, A. Ridolfi, P. C. C. Freire, R. S. Wharton, Y. Gupta, S. M. Ransom, L. S. Oswald, M. Kramer, M. E. DeCesar
Accepted for publication in A&A
- Discovery of PSR J0523-7125 as a circularly-polarized variable radio source in the Large Magellanic Cloud
Y. Wang, T. Murphy, D. L. Kaplan, T. Klinner-Teo, A. Ridolfi, M. Bailes, F. Crawford, S. Dai, D. Dobie, B. M. Gaensler, V. Graber, I. Heywood, E. Lenc, D. R. Lorimer, M. A. McLaughlin, A. O'Brien, S. Pintaldi, J. Pritchard, N. Rea, J. P. Ridley, M. Ronchi, R. M. Shannon, G. R. Sivakoff, A. Stewart, Z. Wang, & A. Zic
The Astrophysical Journal, Volume 930, Number 1, 38, 13pp
- Discoveries and Timing of Pulsars in NGC 6440
L. Vleeschower, B. W. Stappers, M. Bailes, E. D. Barr, M. Kramer, S. Ransom, A. Ridolfi, V. Venkatraman Krishnan, A. Possenti, M. J. Keith, M. Burgay, P. C. C. Freire, R. Spiewak, D. J. Champion, M. C. Bezuidenhout, I. C. Nitu, W. Chen, A. Parthasarathy, M. E. DeCesar, S. Buchner, I. H. Stairs, J. W. T. Hessels
Monthly Notices of the Royal Astronomical Society, Volume 513, Issue 1, pp.1386-1399
- Four pulsar discoveries in NGC 6624 by TRAPUM using MeerKAT
F. Abbate, A. Ridolfi, E. D. Barr, S. Buchner, M. Burgay, D. J. Champion, W. Chen, P. C. C. Freire, T. Gautam, J. M. Grießmeier, L. Künkel, M. Kramer, P. V. Padmanabh, A. Possenti, S. Ransom, M. Serylak, B. W. Stappers, V. Venkatraman Krishnan, J. Behrend, R. P. Breton, L. Levin, Y. Men
Monthly Notices of the Royal Astronomical Society, Volume 513, Issue 2, pp.2292-2301
- TRAPUM discovery of thirteen new pulsars in NGC 1851 using MeerKAT
A. Ridolfi, P. C. C. Freire, T. Gautam, S. M. Ransom, E. D. Barr, S. Buchner, M. Burgay, F. Abbate, V. Venkatraman Krishnan, L. Vleeschower, A. Possenti, B. W. Stappers, M. Kramer, W. Chen, P. V. Padmanabh, D. J. Champion, M. Bailes, L. Levin, E. F. Keane, R. P. Breton, M. Bezuidenhout, J.-M. Griessmeier, L. Kuenkel, Y. Men, F. Camilo, M. Geyer, B. V. Hugo, A. Jameson, A. Parthasarathy, M. Serylak
Accepted for publication in Astronomy & Astrophysics
- Two New Black Widow Millisecond Pulsars In M28
A. Douglas, P. Padmanabh, S. Ransom, A. Ridolfi, P. Freire, V. Venkatraman Krishnan, E. Barr, C. Pallanca, M. Cadelano, A. Possenti, I. Stairs, J. Hessels, M. DeCesar, R. Lynch, M. Bailes, M. Burgay, D. Champion, R. Karuppusamy, M. Kramer, B. Stappers, L. Vleeschower
The Astrophysical Journal, Volume 927, Issue 1, id.126, 8 pp.
2021:
- Evidence of intra-binary shock emission from the redback pulsar PSR J1048+2339
A. Miraval Zanon, P. D'Avanzo, A. Ridolfi, F. Coti Zelati, S. Campana, C. Tiburzi, D. de Martino, T. Munoz Darias, C. G. Bassa, L. Zampieri, A. Possenti, F. Ambrosino, A. Papitto, M. C. Baglio, M. Burgay, A. Burtovoi, D. Michilli, P. Ochner, P. Zucca
Astronomy & Astrophysics, Volume 649, id.A120, 12 pp.
- Eight new millisecond pulsars from the first MeerKAT globular cluster census
A. Ridolfi, T. Gautam, P. C. C. Freire, S. M. Ransom, S. J. Buchner, A. Possenti, V. Venkatraman Krishnan, M. Bailes, M. Kramer, B. W. Stappers, F. Abbate, E. D. Barr, M. Burgay, F. Camilo, A. Corongiu, A. Jameson, P. V. Padmanabh, L. Vleeschower, D. J. Champion, W. Chen, M. Geyer, A. Karastergiou, R. Karuppusamy, A. Parthasarathy, D. J. Reardon, M. Serylak, R. M. Shannon, R. Spiewak
Monthly Notices of the Royal Astronomical Society, Volume 504, Issue 1, June 2021, Pages 1407-1426
INAF Press Release |
MPIfR Press Release |
Uni Manchester Press Release |
The Academic Times |
Live Science
- Radio pulsations from the γ-ray millisecond pulsar PSR J2039-5617
A. Corongiu, R. P. Mignani, A. S. Seyffert, C. J. Clark, C. Venter, L. Nieder, A. Possenti, M. Burgay, A. Belfiore, A. De Luca, A. Ridolfi, Z. Wadiasingh
Monthly Notices of the Royal Astronomical Society, Volume 502, Issue 1, pp.935-952
Media INAF news
- Extending the Z2n and H Statistics to Generic Pulsed Profiles
M. Bachetti, M. Pilia, D. Huppenkothen, S. M. Ransom, S. Curatti, A. Ridolfi
The Astrophysical Journal, Volume 909, Issue 1, id.33, 10 pp.
- The Relativistic Binary Programme on MeerKAT: Science objectives and first results
M. Kramer, I. H. Stairs, V. Venkatraman-Krishnan, P. C. C. Freire, F. Abbate, M. Bailes, M. Burgay, S. Buchner, D. J. Champion, I. Cognard, T. Gautam, M. Geyer, L. Guillemot, H. Hu, G. Janssen, M. E. Lower, A. Parthasarathy, A. Possenti, S. Ransom, D. J. Reardon, A. Ridolfi, M. Serylak, R. M. Shannon, R. Spiewak, G. Theureau, W. van Straten, N. Wex, L. S. Oswald, B. Posselt, C. Sobey, E. D. Barr, F. Camilo, B. Hugo, A. Jameson, S. Johnston, A. Karastergiou, M. Keith, S. Oslowski
Monthly Notices of the Royal Astronomical Society, Volume 504, Issue 2, pp.2094-2114
- The New Magnetar SGR J1830-0645 in Outburst
F. Coti Zelati, A. Borghese, G. L. Israel, N. Rea, P. Esposito, M. Pilia, M. Burgay, A. Possenti, A. Corongiu, A. Ridolfi, C. Dehman, D. Vigano, R. Turolla, S. Zane, A. Tiengo, E. F. Keane
The Astrophysical Journal Letters, Volume 907, Issue 2, id.L34, 9 pp.
2020:
- Giant pulses from J1823-3021A observed with the MeerKAT telescope
F. Abbate, M. Bailes, S. J. Buchner, F. Camilo, P. C. C. Freire, M. Geyer, A. Jameson, M. Kramer, A. Possenti, A. Ridolfi, M. Serylak, R. Spiewak, B. W. Stappers, V. Venkatraman Krishnan
Monthly Notices of the Royal Astronomical Society, Volume 498, Issue 1, pp.875-882
- Simultaneous multi-telescope observations of FRB 121102
M. Caleb, B. W. Stappers, T. D. Abbott, E. D. Barr, M. C. Bezuidenhout, S. J. Buchner, M. Burgay, W. Chen, I. Cognard, L. N. Driessen, R. Fender, G. H. Hilmarsson, J. Hoang, D. M. Horn, F. Jankowski, M. Kramer, D. R. Lorimer, M. Malenta, V. Morello, M. Pilia, E. Platts, A. Possenti, K. M. Rajwade, A. Ridolfi, L. Rhodes, S. Sanidas, M. Serylak, L. G. Spitler, L. J. Townsend, A. Weltman, P. A. Woudt, J. Wu
Monthly Notices of the Royal Astronomical Society, Volume 496, Issue 4, pp.4565-4573
- The MeerKAT telescope as a pulsar facility: System verification and early science results from MeerTime
M. Bailes, A. Jameson, F. Abbate, E. D. Barr, N. D. R. Bhat, L. Bondonneau, M. Burgay, S. J. Buchner, F. Camilo, D. J. Champion, I. Cognard, P. B. Demorest, P. C. C. Freire, T. Gautam, M. Geyer, J. M. Griessmeier, L. Guillemot, H. Hu, F. Jankowski, S. Johnston, A. Karastergiou, R. Karuppusamy, D. Kaur, M. J. Keith, M. Kramer, J. van Leeuwen, M. E. Lower, Y. Maan, M. A. McLaughlin, B. W. Meyers, S. Osłowski, L. S. Oswald, A. Parthasarathy, T. Pennucci, B. Posselt, A. Possenti, S. M. Ransom, D. J. Reardon, A. Ridolfi, C. T. G. Schollar, M. Serylak, G. Shaifullah, M. Shamohammadi, R. M. Shannon, C. Sobey, X. Song, R. Spiewak, I. H. Stairs, B. W. Stappers, W. van Straten, A. Szary, G. Theureau, V. Venkatraman Krishnan, P. Weltevrede, N. Wex, T. D. Abbott, G. B. Adams, J. P. Burger, R. R. G. Gamatham, M. Gouws, D. M. Horn, B. Hugo, A. F. Joubert, J. R. Manley, K. McAlpine, S. S. Passmoor, A. Peens-Hough, Z. R. Ramudzuli, A. Rust, S. Salie, L. C. Schwardt, R. Siebrits, G. Van Tonder, V. Van Tonder, M. G. Welz
Monthly Notices of the Royal Astronomical Society, Volume 496, Issue 4, pp.4565-4573
- A very young radio-loud magnetar
P. Esposito, N. Rea, A. Borghese, F. Coti Zelati, D. Vigano', G. L. Israel, A. Tiengo, A. Ridolfi, A. Possenti, M. Burgay, D. Goetz, F. Pintore, L. Stella, C. Dehman, M. Ronchi, S. Campana, A. Garcia-Garcia, V. Graber, S. Mereghetti, R. Perna, R. Turolla, S. Zane
The Astrophysical Journal Letters, Volume 896, Issue 2, id.L30
ESA Press Release |
JPL News |
Media INAF news
- The lowest frequency Fast Radio Bursts: Sardinia Radio Telescope detection of the periodic FRB 180916 at 328 MHz
M. Pilia, M. Burgay, A. Possenti, A. Ridolfi, V. Gajjar, A. Corongiu, D. Perrodin, G. Bernardi, G. Naldi, G. Pupillo, F. Ambrosino, G. Bianchi, A. Burtovoi, P. Casella, C. Casentini, M. Cecconi, C. Ferrigno, M. Fiori, K. C. Gendreau, A. Ghedina, G. Naletto, L. Nicastro, P. Ochner, E. Palazzi, F. Panessa, A. Papitto, C. Pittori, N. Rea, G. A. Rodriguez Castillo, V. Savchenko, G. Setti, M. Tavani, A. Trois, M. Trudu, M. Turatto, A. Ursi, F. Verrecchia, L. Zampieri
The Astrophysical Journal Letters, Volume 896, Issue 2, id.L40, 11 pp. (2020)
Media INAF news
- The Thousand-Pulsar-Array programme on MeerKAT - I. Science objectives and first results
S. Johnston, A. Karastergiou, M. J. Keith, X. Song, P. Weltevrede, F. Abbate, M. Bailes, S. Buchner, F. Camilo, M. Geyer, B. Hugo, A. Jameson. M. Kramer, A. Parthasarathy, D. J. Reardon, A. Ridolfi, M. Serylak, R. M. Shannon, R. Spiewak, W. van Straten, V. Venkatraman Krishnan, F. Jankowski, B. W. Meyers, L. Oswald, B. Posselt, C. Sobey, A. Szary, J. van Leeuwen
Monthly Notices of the Royal Astronomical Society, Volume 493, Issue 3, p.3608-3615
- The Northern Cross Fast Radio Burst project. I. Overview and pilot observations at 408 MHz
N. Locatelli, G. Bernardi, G. Bianchi, R. Chiello, A. Magro, G. Naldi, M. Pilia, G. Pupillo, A. Ridolfi, G. Setti, F. Vazza
Monthly Notices of the Royal Astronomical Society, Volume 494, Issue 1, pp.1229-1236
- Constraints on the magnetic field in the Galactic halo from globular cluster pulsars
F. Abbate, A. Possenti, C. Tiburzi, E. Barr, W. van Straten, A. Ridolfi, P. C. C. Freire
Nature Astronomy 4, 704–710
Media INAF news |
MPIfR Press Release
- X-ray study of high-and-low luminosity modes and peculiar low-soft-and-hard activity in the transitional pulsar XSS J12270-4859
A. Miraval Zanon, S. Campana, A. Ridolfi, P. D'Avanzo, F. Ambrosino
Astronomy & Astrophysics, Volume 635, id.A30, 10 pp.
2019:
- Upgraded Giant Metrewave Radio Telescope timing of NGC 1851A: a possible millisecond pulsar-neutron star system
A. Ridolfi, P. C. C. Freire, Y. Gupta, S. M. Ransom
Monthly Notices of the Royal Astronomical Society, Volume 490, Issue 3, p.3860-3874
- Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015-2017 LIGO Data
The LIGO Scientific Collaboration, the Virgo Collaboration and Z. Arzoumanian, S. Bogdanov, I. Cognard, A. Corongiu, T. Enoto, P. Freire, K. C. Gendreau, L. Guillemot, A. K. Harding, F. Jankowski, M. J. Keith, M. Kerr, A. Lyne, J. Palfreyman, A. Possenti, A. Ridolfi, B. Stappers, G. Theureau, and P. Weltervrede
The Astrophysical Journal, Volume 879, Issue 1, article id. 10, 28 pp. (2019)
2018:
- Internal gas models and central black hole in 47 Tucanae using millisecond pulsars
F. Abbate, A. Possenti, A. Ridolfi, P. C. C. Freire, F. Camilo, R. N. Manchester, N. D'Amico
Monthly Notices of the Royal Astronomical Society, Volume 481, Issue 1, p.627-638
- PSR J1755−2550: A young radio pulsar with a massive, compact companion
C. Ng, M. U. Kruckow, T. M. Tauris, A. G. Lyne, P. C. C. Freire, A. Ridolfi, I. Caiazzo, J. Heyl, M. Kramer, A. D. Cameron, D. J. Champion, B. Stappers
Monthly Notices of the Royal Astronomical Society, Volume 476, Issue 4, pp. 4315-4326
- Study of the eclipse region of the redback millisecond pulsar J1431−4715
A. Miraval Zanon, M. Burgay, A. Possenti, A. Ridolfi
Journal of Physics: Conference Series, Volume 956, Number 1, p.012004
- An algorithm for determining the rotation count of pulsars
P. C. C. Freire & A. Ridolfi
Monthly Notices of the Royal Astronomical Society, Volume 476, Issue 4, pp. 4794-4805
- The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757−1854, the most accelerated binary pulsar
A. D. Cameron, D. J. Champion, M. Kramer, M. Bailes, E. D. Barr, S. Bhandari, N. D. R. Bhat, M. Burgay, S. Burke-Spolaor, R. P. Eatough, C. M. L. Flynn, P. C. C. Freire, A. Jameson, S. Johnston, R. Karuppusamy, M. J. Keith, L. Levin, D. R. Lorimer, A. G. Lyne, M. A. McLaughlin, C. Ng, E. Petroff, A. Possenti, A. Ridolfi, B. W. Stappers, W. van Straten, T. M. Tauris, C. Tiburzi, N. Wex
Monthly Notices of the Royal Astronomical Society: Letters, Volume 475, Issue 1, p.L57-L61
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First Search for Nontensorial Gravitational Waves from Known Pulsars
The LIGO Scientific Collaboration, the Virgo Collaboration and S. Buchner, I. Cognard, A. Corongiu, P. C. C. Freire, L. Guillemot, G. B. Hobbs, M. Kerr, A. G. Lyne, A. Possenti, A. Ridolfi, R. M. Shannon, B. W. Stappers, and P. Weltevrede
Physical Review Letters, Volume 120, Issue 3, id.031104
2017:
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Pulsar J1411+2551: A Low-mass Double Neutron Star System
J. G. Martinez, K. Stovall, P. C. C. Freire, J. S. Deneva, T. M. Tauris, A. Ridolfi, N. Wex, F. A. Jenet, M. A. Mclaughlin and M. Bagchi
The Astrophysical Journal Letters, Volume 851, Number 2, p. L29
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Long-term observations of pulsars in the globular clusters 47 Tucanae and M15
A. Ridolfi, P. C. C. Freire, M. Kramer, C. G. Bassa, F. Camilo, N. D'Amico, G. Desvignes, C. O. Heinke, C. Jordan, D. R. Lorimer, A. Lyne, R. N. Manchester, Z. Pan, J. Sarkissian, P. Torne, M. van den Berg, A. Venkataraman, N. Wex
Pulsar Astrophysics the Next Fifty Years, Proceedings of the International Astronomical Union, IAU Symposium, Volume 337, pp. 251-254
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Chandra studies of the globular cluster 47 Tucanae: A deeper X-ray source catalogue, five new X-ray counterparts to millisecond radio pulsars, and new constraints to r-mode instability window
S. Bhattacharya, C. O. Heinke, A. I. Chugunov, P. C. C. Freire, A. Ridolfi and S. Bogdanov
Monthly Notices of the Royal Astronomical Society, Volume 472, Issue 3, pp. 3706-3721
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Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks
P. C. C. Freire, A. Ridolfi, M. Kramer, C. Jordan, R. N. Manchester, P. Torne, J. Sarkissian, C. O. Heinke, N. D'Amico, F. Camilo, D. R. Lorimer and A. G. Lyne
Monthly Notices of the Royal Astronomical Society, Volume 471, Issue 1, pp. 857-876
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The Sardinia Radio Telescope: From a Technological Project to a Radio Observatory
I. Prandoni, M. Murgia, A. Tarchi, M. Burgay, P. Castangia, E. Egron, F. Govoni, A. Pellizzoni, R. Ricci, S. Righini, M. Bartolini, S. Casu, A. Corongiu, M. N. Iacolina, A. Melis, F. T. Nasir, A. Orlati, D. Perrodin, S. Poppi, A. Trois, V. Vacca, A. Zanichelli, M. Bachetti, M. Buttu, G. Comoretto, R. Concu, A. Fara, F. Gaudiomonte, F. Loi, C. Migoni, A. Orfei, M. Pilia, P. Bolli, E. Carretti, N. D'Amico, D. Guidetti, S. Loru, F. Massi, T. Pisanu, I. Porceddu, A. Ridolfi, G. Serra, C. Stanghellini, C. Tiburzi, S. Tingay, G. Valente
Astronomy & Astrophysics, Volume 608, id.A40, 26 pp.
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First Search for Gravitational Waves from Known Pulsars with Advanced LIGO
The LIGO Scientific Collaboration, the Virgo Collaboration and S. Buchner, I. Cognard, A. Corongiu, P. C. C. Freire, L. Guillemot, G. B. Hobbs, M. Kerr, A. G. Lyne, A. Possenti, A. Ridolfi, R. M. Shannon, B. W. Stappers, and P. Weltevrede
The Astrophysical Journal, Volume 839, Issue 1, article id. 12, 19 pp.
2016:
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Polarization study of the pulsars in the globular cluster 47 Tucanae
F. Abbate, A. Possenti, C. Tiburzi, W. van Straten, E. Barr, A. Ridolfi, P. Freire
Proceedings of MeerKAT Science: On the Pathway to the SKA. 25-27 May, 2016 Stellenbosch, South Africa (MeerKAT2016), id.36
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Long-term observations of the pulsars in 47 Tucanae - I. A study of four elusive binary systems
A. Ridolfi, P. Freire, P. Torne, C. O. Heinke, M. van den Berg, C. Jordan, M. Kramer, C. G. Bassa, J. Sarkissian, N. D'Amico, D. Lorimer, F. Camilo, R. N. Manchester, A. Lyne
Monthly Notices of the Royal Astronomical Society, Volume 462, Issue 3, p.2918-2933
Harvard-Smithsonian Center for Astrophysics science news
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Discovery of two new pulsars in 47 Tucanae (NGC 104)
Z. Pan, G. Hobbs, D. Li, A. Ridolfi, P. Wang, P. Freire
Monthly Notices of the Royal Astronomical Society: Letters, 2016, Volume 459, Issue 1, p.L26-L30
2015:
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Pulsar J0453+1559: A Double Neutron Star System with a Large Mass Asymmetry
J. G. Martinez, K. Stovall, P. Freire, J. S. Deneva, F. A. Jenet, M. A. McLaughlin, M. Bagchi, S. D. Bates, A. Ridolfi
The Astrophysical Journal, Volume 812, Issue 2, article id. 143, 8 pp. (2015).
2014:
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The SRT: Astronomical Validation & Scientific Perspectives
I. Prandoni, A. Melis, C. Migoni, D. Perrodin, M. Burgay, F. Govoni, M. Murgia, A. Pellizzoni, S. Righini, A. Tarchi, M. Bartolini, P. Bolli, M. Buttu, P. Castangia, S. Casu, R. Concu, A. Corongiu, N. D'Amico, E. Egron, A. Fara, F. Gaudiomonte, D. Guidetti, M. N. Iacolina, F. Massi, F. Nasyr, A. Orfei, A. Orlati, T. Pisanu, S. Poppi, I. Porceddu, A. Ridolfi, R. Ricci, C. Stanghellini, C. Tiburzi, A. Trois, V. Vacca, G. Valente, A. Zanichelli
Proceedings of the 12th European VLBI Network Symposium and Users Meeting (EVN 2014). 7-10 October 2014. Cagliari, Italy.
2013:
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The missing GeV γ-ray binary: searching for HESS J0632+057 with Fermi-LAT
G. A. Caliandro, A. B. Hill, D. F. Torres, D. Hadasch, P. Ray, A. Abdo, J. W. T. Hessels, A. Ridolfi, A. Possenti, M. Burgay, N. Rea, P. H. T. Tam, R. Dubois, G. Dubus, T. Glanzman, T. Jogler
Monthly Notices of the Royal Astronomical Society, 2013, Volume 436, Issue 1, p.740-749
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