Zobrazeno 1 - 10
of 224
pro vyhledávání: '"H. M. Antia"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:6123-6138
IGR J17091--3624 is a transient galactic black hole which has a distinct quasi-periodic variability known as `heartbeat', similar to the one observed in GRS 1915+105. In this paper, we report the results of $\sim 125$ ks \textit{AstroSat} observation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe7649580da651ce40c1dc8bd919d341
https://doi.org/10.1093/mnras/staa3756
https://doi.org/10.1093/mnras/staa3756
We present an improved background model for the Large Area X-ray Proportional Counter (LAXPC) detectors on-board AstroSat. Because of the large collecting area and high pressure, the LAXPC instrument has a large background count rate, which varies du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::501c0193396532a95c7f20f423c49753
Autor:
R. K. Manchanda, J. S. Yadav, H. M. Antia, P. C. Agrawal, K. Mukerjee, Dhiraj Dedhia, Tilak Katoch, Jayashree Roy, Mayukh Pahari, Ranjeev Misra, Parag Shah
Publikováno v:
Journal of Astrophysics and Astronomy. 42
The Large Area X-ray Proportional Counter (LAXPC) instrument on-board AstroSat has three nominally identical detectors for timing and spectral studies in the energy range of 3--80 keV. The performance of these detectors during the five years after th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca36bfb5c5079e724413fa243c5abbf7
https://doi.org/10.1007/s12036-021-09712-8
https://doi.org/10.1007/s12036-021-09712-8
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 489:714-722
Magnetohydrodynamic dynamo modelling shows that the large-scale solar meridional plasma flow plays an important role in governing the dynamics of the sunspot cycle. Observations indicate that meridional flow velocities at each solar latitude and dept
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6879754e5c178943ff3a142b1adf66f
https://doi.org/10.1093/mnras/stz2168
https://doi.org/10.1093/mnras/stz2168
We present results from AstroSat observation of the recent outburst of GRO J2058+42, an X-ray pulsar in a Be-binary system. The source was observed on April 10, 2019 by LAXPC and SXT instruments on AstroSat during its declining phase of the latest gi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cde69ec9da7922829f8adfa94bd8b5f
http://arxiv.org/abs/2005.14044
http://arxiv.org/abs/2005.14044
Autor:
H. M. Antia, S. P. Rajaguru
Publikováno v:
Astrophysics and Space Science Proceedings ISBN: 9783030553357
A key component of solar interior dynamics is the meridional circulation (MC), whose poleward component in the surface layers has been well observed. Time-distance helioseismic studies of the deep structure of MC, however, have yielded conflicting in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38057593c077e6e2d03b458a5b214921
https://doi.org/10.1007/978-3-030-55336-4_11
https://doi.org/10.1007/978-3-030-55336-4_11
Autor:
William J. Chaplin, Aldo M. Serenelli, Andrea Miglio, Thierry Morel, J. Ted Mackereth, Fiorenzo Vincenzo, Hans Kjeldsen, Sarbani Basu, Warrick H. Ball, Amalie Stokholm, Kuldeep Verma, Jakob Rørsted Mosumgaard, Victor Silva Aguirre, Anwesh Mazumdar, Pritesh Ranadive, H. M. Antia, Yveline Lebreton, Joel Ong, Thierry Appourchaux, Timothy R. Bedding, Jørgen Christensen-Dalsgaard, Orlagh Creevey, Rafael A. García, Rasmus Handberg, Daniel Huber, Steven D. Kawaler, Mikkel N. Lund, Travis S. Metcalfe, Keivan G. Stassun, Michäel Bazot, Paul G. Beck, Keaton J. Bell, Maria Bergemann, Derek L. Buzasi, Othman Benomar, Diego Bossini, Lisa Bugnet, Tiago L. Campante, Zeynep Çelik Orhan, Enrico Corsaro, Lucía González-Cuesta, Guy R. Davies, Maria Pia Di Mauro, Ricky Egeland, Yvonne P. Elsworth, Patrick Gaulme, Hamed Ghasemi, Zhao Guo, Oliver J. Hall, Amir Hasanzadeh, Saskia Hekker, Rachel Howe, Jon M. Jenkins, Antonio Jiménez, René Kiefer, James S. Kuszlewicz, Thomas Kallinger, David W. Latham, Mia S. Lundkvist, Savita Mathur, Josefina Montalbán, Benoit Mosser, Andres Moya Bedón, Martin Bo Nielsen, Sibel Örtel, Ben M. Rendle, George R. Ricker, Thaíse S. Rodrigues, Ian W. Roxburgh, Hossein Safari, Mathew Schofield, Sara Seager, Barry Smalley, Dennis Stello, Róbert Szabó, Jamie Tayar, Nathalie Themeßl, Alexandra E. L. Thomas, Roland K. Vanderspek, Walter E. van Rossem, Mathieu Vrard, Achim Weiss, Timothy R. White, Joshua N. Winn, Mutlu Yıldız
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Nature Astronomy
Nature Astronomy, Nature Publishing Group, 2020, 4 (4), pp.382-389. ⟨10.1038/s41550-019-0975-9⟩
Nature Astronomy, 2020, 4 (4), pp.382-389. ⟨10.1038/s41550-019-0975-9⟩
Nature Astronomy, Nature Publishing Group, 2020, ⟨10.1038/s41550-019-0975-9⟩
Chaplin, W J, Serenelli, A M, Miglio, A, Morel, T, Mackereth, J T, Vincenzo, F, Kjeldsen, H, Basu, S, Ball, W H, Stokholm, A, Verma, K, Mosumgaard, J R, Silva Aguirre, V, Mazumdar, A, Ranadive, P, Antia, H M, Lebreton, Y, Ong, J, Appourchaux, T, Bedding, T R, Christensen-Dalsgaard, J, Creevey, O, García, R A, Handberg, R, Huber, D, Kawaler, S D, Lund, M N, Metcalfe, T S, Stassun, K G, Bazot, M, Beck, P G, Bell, K J, Bergemann, M, Buzasi, D L, Benomar, O, Bossini, D, Bugnet, L, Campante, T L, Orhan, Z Ç, Corsaro, E, González-Cuesta, L, Davies, G R, Di Mauro, M P, Egeland, R, Elsworth, Y P, Gaulme, P, Ghasemi, H, Guo, Z, Hall, O J, Hasanzadeh, A, Hekker, S, Howe, R, Jenkins, J M, Jiménez, A, Kiefer, R, Kuszlewicz, J S, Kallinger, T, Latham, D W, Lundkvist, M S, Mathur, S, Montalbán, J, Mosser, B, Bedón, A M, Nielsen, M B, Örtel, S, Rendle, B M, Ricker, G R, Rodrigues, T S, Roxburgh, I W, Safari, H, Schofield, M, Seager, S, Smalley, B, Stello, D, Szabó, R, Tayar, J, Themeßl, N, Thomas, A E L, Vanderspek, R K, van Rossem, W E, Vrard, M, Weiss, A, White, T R, Winn, J N & Yıldız, M 2020, ' Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi ', Nature Astronomy, vol. 4, no. 4, pp. 382-+ . https://doi.org/10.1038/s41550-019-0975-9
instname
Nature Astronomy
Nature Astronomy, Nature Publishing Group, 2020, 4 (4), pp.382-389. ⟨10.1038/s41550-019-0975-9⟩
Nature Astronomy, 2020, 4 (4), pp.382-389. ⟨10.1038/s41550-019-0975-9⟩
Nature Astronomy, Nature Publishing Group, 2020, ⟨10.1038/s41550-019-0975-9⟩
Chaplin, W J, Serenelli, A M, Miglio, A, Morel, T, Mackereth, J T, Vincenzo, F, Kjeldsen, H, Basu, S, Ball, W H, Stokholm, A, Verma, K, Mosumgaard, J R, Silva Aguirre, V, Mazumdar, A, Ranadive, P, Antia, H M, Lebreton, Y, Ong, J, Appourchaux, T, Bedding, T R, Christensen-Dalsgaard, J, Creevey, O, García, R A, Handberg, R, Huber, D, Kawaler, S D, Lund, M N, Metcalfe, T S, Stassun, K G, Bazot, M, Beck, P G, Bell, K J, Bergemann, M, Buzasi, D L, Benomar, O, Bossini, D, Bugnet, L, Campante, T L, Orhan, Z Ç, Corsaro, E, González-Cuesta, L, Davies, G R, Di Mauro, M P, Egeland, R, Elsworth, Y P, Gaulme, P, Ghasemi, H, Guo, Z, Hall, O J, Hasanzadeh, A, Hekker, S, Howe, R, Jenkins, J M, Jiménez, A, Kiefer, R, Kuszlewicz, J S, Kallinger, T, Latham, D W, Lundkvist, M S, Mathur, S, Montalbán, J, Mosser, B, Bedón, A M, Nielsen, M B, Örtel, S, Rendle, B M, Ricker, G R, Rodrigues, T S, Roxburgh, I W, Safari, H, Schofield, M, Seager, S, Smalley, B, Stello, D, Szabó, R, Tayar, J, Themeßl, N, Thomas, A E L, Vanderspek, R K, van Rossem, W E, Vrard, M, Weiss, A, White, T R, Winn, J N & Yıldız, M 2020, ' Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi ', Nature Astronomy, vol. 4, no. 4, pp. 382-+ . https://doi.org/10.1038/s41550-019-0975-9
This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST). et al.
Over the course of its history, the Milky Way has ingested multiple smaller satellite galaxies. Al
Over the course of its history, the Milky Way has ingested multiple smaller satellite galaxies. Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03ccee12f9bc030b91d40cddfdeac2a4
http://hdl.handle.net/10261/236163
http://hdl.handle.net/10261/236163
Autor:
Blessy E Baby, H. M. Antia, Samir Mandal, M. C. Ramadevi, Tilak Katoch, Anuj Nandi, V. K. Agrawal
We present an in-depth spectral and timing analysis of the Black Hole binary 4U 1630-472 during 2016 and 2018 outbursts as observed by \textit{AstroSat} and \textit{MAXI}. The extensive coverage of the outbursts with \textit{MAXI} is used to obtain t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22393b5efbed7f845e0d0633361b6836
Autor:
P. C. Agrawal, Parag Shah, Tilak Katoch, Jai Verdhan Chauhan, Sujay Mate, Biswajit Paul, J. S. Yadav, Dhiraj Dedhia, Varun, Aru Beri, Ranjeev Misra, R. K. Manchanda, P. Madhwani, H. M. Antia, Mayukh Pahari
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, 2019, 482 (4), pp.4397-4407. ⟨10.1093/mnras/sty2975⟩
Monthly Notices of the Royal Astronomical Society, 2019, 482 (4), pp.4397-4407. ⟨10.1093/mnras/sty2975⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 482 (4), pp.4397-4407. ⟨10.1093/mnras/sty2975⟩
Monthly Notices of the Royal Astronomical Society, 2019, 482 (4), pp.4397-4407. ⟨10.1093/mnras/sty2975⟩
We present results from an observation of the Low Mass X-ray Binary 4U 1636-536 obtained with the LAXPC instrument aboard AstroSat. The observations of 4U 1636-536 made during the performance verification phase of AstroSat showed seven thermonuclear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8fb27f4e6504f607e4e1c279f48e8e6
https://doi.org/10.1093/mnras/sty2975
https://doi.org/10.1093/mnras/sty2975
Autor:
H. M. Antia, K. Mukerjee
Publikováno v:
The Astrophysical Journal. 920:139
We present timing and spectral results of 2018 outburst of Cepheus X-4, observed twice by AstroSat at luminosity of $2.04 \times 10^{37}$ erg s$^{-1}$ and $1.02 \times 10^{37}$ erg s$^{-1}$ respectively. The light curves showed strong pulsation and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ade9c6e35589d1bde2b2673293ca3825
https://doi.org/10.3847/1538-4357/ac11f1
https://doi.org/10.3847/1538-4357/ac11f1