Zobrazeno 1 - 10
of 11
pro vyhledávání: '"John A. Paice"'
Autor:
Krystian Iłkiewicz, Simone Scaringi, Martina Veresvarska, Domitilla De Martino, Colin Littlefield, Christian Knigge, John A. Paice, Anwesha Sahu
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 2, p L34 (2024)
Cataclysmic variables can experience short optical brightenings, which are commonly attributed to phenomena such as dwarf novae outbursts, micronovae, donor flares, or magnetic gating bursts. Since these events exhibit similar observational character
Externí odkaz:
https://doaj.org/article/0eebcdb4d6ce4e70a8a2160dbce8f787
Autor:
T. R. Marsh, G. R. Sivakoff, Thomas D. Russell, A. J. Tetarenko, Poshak Gandhi, F. M. Vincentelli, J. C. A. Miller-Jones, John A. Paice, V. S. Dhillon, P. Uttley, T. J. Maccarone, Piergiorgio Casella
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 504(3), 3862-3883. Oxford University Press
We present multi-wavelength fast timing observations of the black hole X-ray binary MAXI J1820+070 (ASASSN-18ey), taken with the Karl G. Jansky Very Large Array (VLA), Atacama Large Millimeter/Sub-Millimeter Array (ALMA), Very Large Telescope (VLT),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24701e796102a044a6784b4350f42283
https://ui.adsabs.harvard.edu/abs/2021MNRAS.504.3862T/abstract
https://ui.adsabs.harvard.edu/abs/2021MNRAS.504.3862T/abstract
Autor:
Jessymol K Thomas, David A H Buckley, Philip A Charles, John A Paice, Stephen B Potter, James F Steiner, Jean-Pierre Lasota, P Gandhi, Lian Tao, Xiang Ma, Yi-Jung Yang, Youli Tuo, Shuang-Nan Zhang
We present high-speed optical photometry from SAAO and SALT on the black hole LMXB MAXI J1820+070 (ASSASN-18ey), some of it simultaneous with NICER, Swift, and Insight-HXMT X-ray coverage. We detect optical quasi-periodic oscillations (QPOs) that mov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07bbc03514308a8ec254b2a4cf0bfa1b
https://eprints.soton.ac.uk/475633/
https://eprints.soton.ac.uk/475633/
Autor:
John A. Paice, Poshak Gandhi, Douglas Boubert, Christian Knigge, Nathan W. C. Leigh, Anjali Rao
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 495:1491-1500
We study the stellar kinematic properties and spatial distribution of the association Cyg OB3 using precise astrometric data from Gaia DR2. All known O- and B-type stars in Cyg OB3 region with positions, parallaxes and proper motions available are in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77d67ac6617b69464e0e8186314a8092
https://doi.org/10.1093/mnras/staa1217
https://doi.org/10.1093/mnras/staa1217
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 485:2642-2655
We report on a first census of Galactic black hole X-ray binary (BHXRB) properties with the second data release (DR2) of Gaia, focusing on dynamically confirmed and strong candidate BH transients. Gaia DR2 provides five-parameter astrometric solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0658afbb28e18e8843c08eb017835cde
https://doi.org/10.1093/mnras/stz438
https://doi.org/10.1093/mnras/stz438
The evolution of rapid optical/X-ray timing correlations in the initial hard state of MAXI J1820+070
Autor:
T. Shahbaz, S. P. Littlefair, P. Uttley, F. M. Vincentelli, P. A. Charles, John A. Paice, V. S. Dhillon, T. R. Marsh, Poshak Gandhi, Julien Malzac, Ranjeev Misra, Alexandra Veledina, Kaustubh Rajwade, D. A. H. Buckley
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 505 (3), pp.3452-3469. ⟨10.1093/mnras/stab1531⟩
Monthly Notices of the Royal Astronomical Society, 505(3), 3452-3469. Oxford University Press
Paice, J, Poshak, G, Shahbaz, T, Veledina, A, Malzac, J, Buckley, D, Charles, P, Rajwade, K, Dhillon, V S, Littlefair, S P, Marsh, T R, Uttley, P, Vincentelli, F & Misra, R 2021, ' The Evolution of Rapid Optical/X-ray Timing Correlations in the Initial hard state of MAXI J1820+070 ', Monthly Notices of the Royal Astronomical Society, vol. 505, no. 3, pp. 3452–3469 . https://doi.org/10.1093/mnras/stab1531
Monthly Notices of the Royal Astronomical Society, 2021, 505 (3), pp.3452-3469. ⟨10.1093/mnras/stab1531⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 505 (3), pp.3452-3469. ⟨10.1093/mnras/stab1531⟩
Monthly Notices of the Royal Astronomical Society, 505(3), 3452-3469. Oxford University Press
Paice, J, Poshak, G, Shahbaz, T, Veledina, A, Malzac, J, Buckley, D, Charles, P, Rajwade, K, Dhillon, V S, Littlefair, S P, Marsh, T R, Uttley, P, Vincentelli, F & Misra, R 2021, ' The Evolution of Rapid Optical/X-ray Timing Correlations in the Initial hard state of MAXI J1820+070 ', Monthly Notices of the Royal Astronomical Society, vol. 505, no. 3, pp. 3452–3469 . https://doi.org/10.1093/mnras/stab1531
Monthly Notices of the Royal Astronomical Society, 2021, 505 (3), pp.3452-3469. ⟨10.1093/mnras/stab1531⟩
We report on a multi-epoch campaign of rapid optical/X-ray timing observations of the superbright 2018 outburst of MAXI J1820+070, a black hole low-mass X-ray binary system. The observations spanned 80 days in the initial hard-state, and were taken w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25ac49aa758b3ae83518c5f488ea2897
https://hal.archives-ouvertes.fr/hal-03281126
https://hal.archives-ouvertes.fr/hal-03281126
Autor:
Philip A. Charles, Jean-Pierre Lasota, David A. H. Buckley, Marissa Kotze, Jessymol K. Thomas, John A. Paice, James F. Steiner, Stephen Potter
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2021, 509 (1), pp.1062-1074. ⟨10.1093/mnras/stab3033⟩
Mon.Not.Roy.Astron.Soc., 2021, 509 (1), pp.1062-1074. ⟨10.1093/mnras/stab3033⟩
The black-hole X-ray transient MAXI J1820+07 (=ASSASN-18ey) discovered in March 2018 was one of the optically brightest ever seen, which has resulted in very detailed optical outburst light-curves being obtained. We combine them here with X-ray and r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b04f1eab9eddba05a7620ccdc3877f7b
Autor:
John A. Paice, James Matthews, P. A. Charles, Enrico Kotze, Poshak Gandhi, David A. H. Buckley
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters.
Time-resolved SALT spectra of the short-period, dipping X-ray transient, Swift J1357.2-0933, during its 2017 outburst has revealed broad Balmer and HeII4686 absorption features, blue-shifted by ~600 km/s. Remarkably these features are also variable o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bab8f5eee8028e07f28383d94a80d3b
https://doi.org/10.1093/mnrasl/slz120
https://doi.org/10.1093/mnrasl/slz120
Autor:
Arash Bahramian, Matthew J. Middleton, Diego Altamirano, G. R. Sivakoff, J. V. Hernández Santisteban, B. E. Tetarenko, Poshak Gandhi, Rudy Wijnands, John A. Paice, Nathalie Degenaar, Aru Beri
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 485(3), 3064-3075. Oxford University Press
We report on observations of black hole Swift J1357.2-0933, a member of the modest population of very faint X-ray transients. This source has previously shown intense dips in the optical lightcurve, a phenomena that has been linked to the existence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::491e663264b38dea0ab72ed9ecc239a2
http://arxiv.org/abs/1903.00146
http://arxiv.org/abs/1903.00146
Autor:
Poshak Gandhi, Ranjeev Misra, P. A. Charles, Sera Markoff, S. P. Littlefair, Tom Marsh, Phil Uttley, Alexandra Veledina, Zaven Arzoumanian, John A. Paice, V. S. Dhillon, Keith C. Gendreau, Julien Malzac, T. Shahbaz, D. M. Russell
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 490 (1), pp.L62-L66. ⟨10.1093/mnrasl/slz148⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2019, 490 (1), pp.L62-L66. ⟨10.1093/mnrasl/slz148⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 490 (1), pp.L62-L66. ⟨10.1093/mnrasl/slz148⟩
Monthly Notices of the Royal Astronomical Society: Letters, 490(1), L62-L66. Oxford University Press
Mon.Not.Roy.Astron.Soc., 2019, 490 (1), pp.L62-L66. ⟨10.1093/mnrasl/slz148⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2019, 490 (1), pp.L62-L66. ⟨10.1093/mnrasl/slz148⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 490 (1), pp.L62-L66. ⟨10.1093/mnrasl/slz148⟩
Monthly Notices of the Royal Astronomical Society: Letters, 490(1), L62-L66. Oxford University Press
We report on simultaneous sub-second optical and X-ray timing observations of the low mass X-ray binary black hole candidate MAXI J1820+070. The bright 2018 outburst rise allowed simultaneous photometry in five optical bands ($ugriz_s$) with HiPERCAM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04d5597f4d2e25e3b74a82480e105661
https://hal.archives-ouvertes.fr/hal-02410941
https://hal.archives-ouvertes.fr/hal-02410941