Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Manisha Caleb"'
Autor:
Kovi Rose, Joshua Pritchard, Tara Murphy, Manisha Caleb, Dougal Dobie, Laura Driessen, Stefan W. Duchesne, David L. Kaplan, Emil Lenc, Ziteng Wang
Publikováno v:
The Astrophysical Journal Letters, Vol 951, Iss 2, p L43 (2023)
We present the detection of rotationally modulated, circularly polarized radio emission from the T8 brown dwarf WISE J062309.94−045624.6 between 0.9 and 2.0 GHz. We detected this high-proper-motion ultracool dwarf with the Australian SKA Pathfinder
Externí odkaz:
https://doaj.org/article/818c656745ed4a48b7c91dc710022984
Autor:
Alexa C. Gordon, Wen-fai Fong, Charles D. Kilpatrick, Tarraneh Eftekhari, Joel Leja, J. Xavier Prochaska, Anya E. Nugent, Shivani Bhandari, Peter K. Blanchard, Manisha Caleb, Cherie K. Day, Adam T. Deller, Yuxin Dong, Marcin Glowacki, Kelly Gourdji, Alexandra G. Mannings, Elizabeth K. Mahoney, Lachlan Marnoch, Adam A. Miller, Kerry Paterson, Jillian C. Rastinejad, Stuart D. Ryder, Elaine M. Sadler, Danica R. Scott, Huei Sears, Ryan M. Shannon, Sunil Simha, Benjamin W. Stappers, Nicolas Tejos
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 80 (2023)
We present a comprehensive catalog of observations and stellar population properties for 23 highly secure host galaxies of fast radio bursts (FRBs). Our sample comprises 6 repeating FRBs and 17 apparent nonrepeaters. We present 82 new photometric and
Externí odkaz:
https://doaj.org/article/2413846e68ee47618d5f155f18df4e1f
Autor:
Manisha Caleb, Evan Keane
Publikováno v:
Universe, Vol 7, Iss 11, p 453 (2021)
Fast radio bursts (FRBs) have a story which has been told and retold many times over the past few years as they have sparked excitement and controversy since their pioneering discovery in 2007. The FRB class encompasses a number of microsecond- to mi
Externí odkaz:
https://doaj.org/article/3ed8e200a8c4469d891a35ead535d868
Autor:
Gregory Desvignes, Patrick Weltevrede, Yong Gao, Ian Jones, Michael Kramer, Manisha Caleb, Ramesh Karuppusamy, Lina Levin, Kuo Liu, Andrew Lyne, Lijing Shao, Ben Stappers
Magnetars, highly magnetised neutron stars, are thought to be the most likely progenitors for fast radio bursts (FRBs). Freely precessing magnetars are further invoked to explain the repeating FRBs. We report here on new high-cadence polarimetric rad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28e73b7e56b23f1d6fb18e33870983fa
https://doi.org/10.21203/rs.3.rs-2281053/v1
https://doi.org/10.21203/rs.3.rs-2281053/v1
Autor:
Manisha Caleb
Publikováno v:
Science (New York, N.Y.). 375(6586)
Mysterious high-energy radio bursts are found to share certain characteristics
Autor:
Manisha Caleb, Ian Heywood, Kaustubh Rajwade, Mateusz Malenta, Benjamin Willem Stappers, Ewan Barr, Weiwei Chen, Vincent Morello, Sotiris Sanidas, Jakob van den Eijnden, Michael Kramer, David Buckley, Jaco Brink, Sara Elisa Motta, Patrick Woudt, Patrick Weltevrede, Fabian Jankowski, Mayuresh Surnis, Sarah Buchner, Mechiel Christiaan Bezuidenhout, Laura Nicole Driessen, Rob Fender
Publikováno v:
Caleb, M, Heywood, I, Rajwade, K, Malenta, M, Willem Stappers, B, Barr, E, Chen, W, Morello, V, Sanidas, S, Van Den Eijnden, J, Kramer, M, Buckley, D, Brink, J, Motta, S E, Woudt, P, Weltevrede, P, Jankowski, F, Surnis, M, Buchner, S, Bezuidenhout, M C, Driessen, L N & Fender, R 2022, ' Discovery of a radio-emitting neutron star with an ultra-long spin period of 76 s ', Nature Astronomy . https://doi.org/10.1038/s41550-022-01688-x
The radio-emitting neutron star population encompasses objects with spin periods ranging from milliseconds to tens of seconds. As they age and spin more slowly, their radio emission is expected to cease. We present the discovery of an ultra-long peri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c438741c01950e218927d247f372e6b9
https://doi.org/10.48550/arxiv.2206.01346
https://doi.org/10.48550/arxiv.2206.01346
Autor:
Ewan Barr, Mayuresh Surnis, Vincent Morello, Benjamin Stappers, Mechiel Christiaan Bezuidenhout, J. Wu, Laura Driessen, Manisha Caleb, S. Sanidas, Kaustubh Rajwade, Mateusz Malenta, Michael Kramer, C. Williams, Fabian Jankowski
Publikováno v:
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
In the era of multi-messenger astrophysics with new types of transients (fast radio transients or gravitational wave events), real-time detection of transients and rapid multiwavelength follow-up is crucial. MeerTRAP is one such instrument that has b
Autor:
C. Williams, B. W. Stappers, Manisha Caleb, Mateusz Malenta, Vincent Morello, Sotirios A. Sanidas, Mechiel Christiaan Bezuidenhout, Mayuresh Surnis, Fabian Jankowski, Laura Driessen, Kaustubh Rajwade, Ewan Barr
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VIII.
Real-time detections of transients and rapid multi-wavelength follow-up are at the core of modern multi-messenger astrophysics. MeerTRAP is one such instrument that has been deployed on the MeerKAT radio telescope in South Africa to search for fast r
Autor:
Rene P. Breton, Kaustubh Rajwade, Aris Karastergiou, Evan Keane, Devansh Agarwal, Mitchell B. Mickaliger, Vincent Morello, Cees Bassa, Benjamin Stappers, Manisha Caleb, Duncan R. Lorimer
Publikováno v:
Rajwade, K, Mickaliger, M, Stappers, B, Morello, V, Agarwal, D, Bassa, C, Breton, R, Caleb, M, Karastergiou, A, Keane, E & Lorimer, D 2020, ' Possible periodic activity in the repeating FRB 121102 ', Monthly Notices of the Royal Astronomical Society, vol. 495, no. 4, pp. 3551-3558 . https://doi.org/10.1093/mnras/staa1237
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society
The discovery that at least some Fast Radio Bursts (FRBs) repeat has ruled out cataclysmic events as the progenitors of these particular bursts. FRB~121102 is the most well-studied repeating FRB but despite extensive monitoring of the source, no unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f0dc30ce3b2f96dc5b1dc830ecf4394
https://doi.org/10.1093/mnras/staa1237
https://doi.org/10.1093/mnras/staa1237
Autor:
A. J. van der Horst, Iain McDonald, Vanessa McBride, Patrick A. Woudt, Kaustubh Rajwade, Rob Fender, Enrico J. Kotze, Manisha Caleb, Benjamin Stappers, Elmar Koerding, Assaf Horesh, Antonia Rowlinson, Ian Heywood, D. A. H. Buckley, Ralph A. M. J. Wijers, Paul J. Groot, Kunal Mooley, Evangelia Tremou, Richard Armstrong, Laura Driessen, James Miller-Jones, S. B. Potter
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 491 (1), pp.560-575. ⟨10.1093/mnras/stz3027⟩
Driessen, L N, Mcdonald, I, Buckley, D A H, Caleb, M, Kotze, E J, Potter, S B, Rajwade, K, Rowlinson, A, Stappers, B, Tremou, E, Woudt, P A, Fender, R P, Armstrong, R, Groot, P, Heywood, I, Horesh, A, van der Horst, A J, Koerding, E, McBride, V A, Miller-Jones, J C A, Mooley, K P & Wijers, R A M J 2020, ' MKT J170456.2-482100: the first transient discovered by MeerKAT ', Monthly Notices of the Royal Astronomical Society, vol. 491, no. 1, pp. 560-575 . https://doi.org/10.1093/mnras/stz3027
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 491 (1), pp.560-575. ⟨10.1093/mnras/stz3027⟩
Monthly Notices of the Royal Astronomical Society, 491(1), 560-575. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 2020, 491 (1), pp.560-575. ⟨10.1093/mnras/stz3027⟩
Mon.Not.Roy.Astron.Soc., 2020, 491 (1), pp.560-575. ⟨10.1093/mnras/stz3027⟩
Driessen, L N, Mcdonald, I, Buckley, D A H, Caleb, M, Kotze, E J, Potter, S B, Rajwade, K, Rowlinson, A, Stappers, B, Tremou, E, Woudt, P A, Fender, R P, Armstrong, R, Groot, P, Heywood, I, Horesh, A, van der Horst, A J, Koerding, E, McBride, V A, Miller-Jones, J C A, Mooley, K P & Wijers, R A M J 2020, ' MKT J170456.2-482100: the first transient discovered by MeerKAT ', Monthly Notices of the Royal Astronomical Society, vol. 491, no. 1, pp. 560-575 . https://doi.org/10.1093/mnras/stz3027
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 491 (1), pp.560-575. ⟨10.1093/mnras/stz3027⟩
Monthly Notices of the Royal Astronomical Society, 491(1), 560-575. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 2020, 491 (1), pp.560-575. ⟨10.1093/mnras/stz3027⟩
We report the discovery of the first transient with MeerKAT, MKT J170456.2$-$482100, discovered in ThunderKAT images of the low mass X-ray binary GX339$-$4. MKT J170456.2$-$482100 is variable in the radio, reaching a maximum flux density of $0.71\pm0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad17867f6d916f81df1a065281c72d7e
https://hal.archives-ouvertes.fr/hal-02409961
https://hal.archives-ouvertes.fr/hal-02409961