Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Krishnan, Vivek"'
Autor:
Grunthal, Kathrin, Nathan, Rowina S., Thrane, Eric, Champion, David J., Miles, Matthew T., Shannon, Ryan M., Kulkarni, Atharva D., Abbate, Federico, Buchner, Sarah, Cameron, Andrew D., Geyer, Marisa, Gitika, Pratyasha, Keith, Michael J., Kramer, Michael, Lasky, Paul D., Parthasarathy, Aditya, Reardon, Daniel J., Singha, Jaikhomba, Krishnan, Vivek Venkatraman
In an accompanying publication, the MeerKAT Pulsar Timing Array (MPTA) collaboration reports tentative evidence for the presence of a stochastic gravitational-wave background, following observations of similar signals from the European and Indian Pul
Externí odkaz:
http://arxiv.org/abs/2412.01214
Autor:
Miles, Matthew T., Shannon, Ryan M., Reardon, Daniel J., Bailes, Matthew, Champion, David J., Geyer, Marisa, Gitika, Pratyasha, Grunthal, Kathrin, Keith, Michael J., Kramer, Michael, Kulkarni, Atharva D., Nathan, Rowina S., Parthasarathy, Aditya, Singha, Jaikhomba, Theureau, Gilles, Thrane, Eric, Abbate, Federico, Buchner, Sarah, Cameron, Andrew D., Camilo, Fernando, Moreschi, Beatrice E., Shaifullah, Golam, Shamohammadi, Mohsen, Possenti, Andrea, Krishnan, Vivek Venkatraman
Pulsar Timing Arrays search for nanohertz-frequency gravitational waves by regularly observing ensembles of millisecond pulsars over many years to look for correlated timing residuals. Recently the first evidence for a stochastic gravitational wave b
Externí odkaz:
http://arxiv.org/abs/2412.01153
Autor:
Miles, Matthew T., Shannon, Ryan M., Reardon, Daniel J., Bailes, Matthew, Champion, David J., Geyer, Marisa, Gitika, Pratyasha, Grunthal, Kathrin, Keith, Michael J., Kramer, Michael, Kulkarni, Atharva D., Nathan, Rowina S., Parthasarathy, Aditya, Porayko, Nataliya K., Singha, Jaikhomba, Theureau, Gilles, Abbate, Federico, Buchner, Sarah, Cameron, Andrew D., Camilo, Fernando, Moreschi, Beatrice E., Shaifullah, Golam, Shamohammadi, Mohsen, Krishnan, Vivek Venkatraman
Pulsar timing arrays are ensembles of regularly observed millisecond pulsars timed to high precision. Each pulsar in an array could be affected by a suite of noise processes, most of which are astrophysically motivated. Analysing them carefully can b
Externí odkaz:
http://arxiv.org/abs/2412.01148
Autor:
Reardon, Daniel J., Main, Robert, Ocker, Stella Koch, Shannon, Ryan M., Bailes, Matthew, Camilo, Fernando, Geyer, Marisa, Jameson, Andrew, Kramer, Michael, Parthasarathy, Aditya, Spiewak, Renée, van Straten, Willem, Krishnan, Vivek Venkatraman
The interstellar medium of the Milky Way contains turbulent plasma with structures driven by energetic processes that fuel star formation and shape the evolution of our Galaxy. Radio waves from pulsars are scattered off the small (au-scale and below)
Externí odkaz:
http://arxiv.org/abs/2410.21390
Autor:
Bernadich, Miquel Colom i, Krishnan, Vivek Venkatraman, Champion, David J., Freire, Paulo C. C., Kramer, Michael, Tauris, Thomas M., Bailes, Matthew, Ridolfi, Alessandro, Serylak, Maciej
Publikováno v:
A&A 690, A253 (2024)
PSR J1227$-$6208 is a 34.53-ms recycled pulsar with a massive companion. This system has long been suspected to belong to the emerging class of massive recycled pulsar-ONeMg white dwarf systems such as PSR J2222$-$0137, PSR J1528$-$3146 and J1439$-$5
Externí odkaz:
http://arxiv.org/abs/2407.13593
Autor:
Balakrishnan, Vishnu, Freire, Paulo, Ransom, Scott, Ridolfi, Alessandro, Barr, Ewan, Chen, Weiwei, Krishnan, Vivek Venkatraman, Champion, David J., Kramer, Michael, Gautam, Tasha, Padmanabh, Prajwal, Men, Yunpeng, Abbate, Federico, Stappers, Benjamin, Stairs, Ingrid, Keane, Evan, Possenti, Andrea
PSR J2140$-$2311B is a 13-ms pulsar discovered in 2001 in a 7.8-hour Green Bank Telescope (GBT) observation of the core-collapsed globular cluster M30 and predicted to be in a highly eccentric binary orbit. This pulsar has eluded detection since then
Externí odkaz:
http://arxiv.org/abs/2301.04983
Autor:
Miles, Matthew T., Shannon, Ryan M., Bailes, Matthew, Reardon, Daniel J., Keith, Michael J., Cameron, Andrew D., Parthasarathy, Aditya, Shamohammadi, Mohsen, Spiewak, Renee, van Straten, Willem, Buchner, Sarah, Camilo, Fernando, Geyer, Marisa, Karastergiou, Aris, Kramer, Michael, Serylak, Maciej, Theureau, Gilles, Krishnan, Vivek Venkatraman
We present the first 2.5 years of data from the MeerKAT Pulsar Timing Array (MPTA), part of MeerTime, a MeerKAT Large Survey Project. The MPTA aims to precisely measure pulse arrival times from an ensemble of 88 pulsars visible from the Southern Hemi
Externí odkaz:
http://arxiv.org/abs/2212.04648
Autor:
Shamohammadi, Mohsen, Bailes, Matthew, Freire, Paulo C. C., Parthasarathy, Aditya, Reardon, Daniel J., Shannon, Ryan M., Krishnan, Vivek Venkatraman, Bernadich, Miquel C. i., Cameron, Andrew D., Champion, David J., Corongiu, Alessandro, Flynn, Christopher, Geyer, Marisa, Kramer, Michael, Miles, Matthew T., Possenti, Andrea, Spiewak, Renee
Precision timing of millisecond pulsars in binary systems enables observers to detect the relativistic Shapiro delay induced by space time curvature. When favourably aligned, this enables constraints to be placed on the component masses and system or
Externí odkaz:
http://arxiv.org/abs/2212.04051
Autor:
Zhang, Lei, Ridolfi, Alessandro, Blumer, Harsha, Freire, Paulo, Manchester, Richard N., McLaughlin, Maura, Kremer, Kyle, Cameron, Andrew D., Zhang, Zhiyu, Behrend, Jan, Burgay, Marta, Buchner, Sarah, Champion, David J., Chen, Weiwei, Dai, Shi, Feng, Yi, Fu, Xiaoting, Guo, Meng, Hobbs, George, Keane, Evan F., Kramer, Michael, Levin, Lina, Li, Xiangdong, Ni, Mengmeng, Pan, Jingshan, Padmanabh, Prajwal V., Possenti, Andrea, Ransom, Scott M., Tsai, Chao-Wei, Krishnan, Vivek Venkatraman, Wang, Pei, Zhang, Jie, Zhi, Qijun, Zhang, Yongkun, Li, Di
We report the discovery of a new 5.78 ms-period millisecond pulsar (MSP), PSR J1740-5340B (NGC 6397B), in an eclipsing binary system discovered with the Parkes radio telescope (now also known as Murriyang), Australia, and confirmed with the MeerKAT r
Externí odkaz:
http://arxiv.org/abs/2207.07880
Autor:
Kumar, P. Senthil, Mishra, Abhisek, Krishnan, Vivek, Pillai, Netra S., Pathak, Sumit, Bhiravarasu, Sriram S., Narendranath, Shyama, Lakshmi, K. Jaya Prasanna, Bhattacharya, Satadru
Publikováno v:
In Icarus October 2024 421