Výsledky vyhledávání - "J. A. Tomsick"

Akademický článek

Estimating the Spin of MAXI J1348–630 from Intermediate and Soft States Using Insight-HXMT Data

Autor: J. Guan, R. C. Ma, L. Tao, A. C. Fabian, J. A. Tomsick, S. N. Zhang, L. Zhang, J. L. Qu, S. Zhang

Publikováno v: The Astrophysical Journal, Vol 976, Iss 1, p 61 (2024)

We present a broadband spectral analysis of the soft-intermediate and soft states using Insight-HXMT observations of the black hole binary MAXI J1348–630 during its outburst in 2019. We employ a combination of reflection and continuum fitting metho

Externí odkaz: https://doaj.org/article/bf67b394108f443b8b20e6319d2cf111

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Akademický článek

Investigating the Ultracompact X-Ray Binary Candidate SLX 1735-269 with NICER and NuSTAR

Autor: D. L. Moutard, R. M. Ludlam, M. Sudha, D. J. K. Buisson, E. M. Cackett, N. Degenaar, A. C. Fabian, P. Gandhi, J. A. García, A. W. Shaw, J. A. Tomsick

Publikováno v: The Astrophysical Journal, Vol 968, Iss 2, p 51 (2024)

We present two simultaneous NICER and NuSTAR observations of the ultracompact X-ray binary (UCXB) candidate SLX 1735−269 while the source was in two different spectral states. Using various reflection modeling techniques, we find that xillverCO , a

Externí odkaz: https://doaj.org/article/9dabe1645d564723af5547554416835b

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Akademický článek

Simultaneous NICER and NuSTAR Observations of the Ultracompact X-Ray Binary 4U 0614+091

Autor: D. L. Moutard, R. M. Ludlam, J. A. García, D. Altamirano, D. J. K. Buisson, E. M. Cackett, J. Chenevez, N. Degenaar, A. C. Fabian, J. Homan, A. Jaodand, S. N. Pike, A. W. Shaw, T. E. Strohmayer, J. A. Tomsick, B. M. Coughenour

Publikováno v: The Astrophysical Journal, Vol 957, Iss 1, p 27 (2023)

We present the first joint NuSTAR and NICER observations of the ultracompact X-ray binary 4U 0614+091. This source shows quasiperiodic flux variations on the timescale of ∼days. We use reflection modeling techniques to study various components of t

Externí odkaz: https://doaj.org/article/8519722e181848c79a5b69446eea6b85

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Akademický článek

Drop in the Hard Pulsed Fraction and a Candidate Cyclotron Line in IGR J16320–4751 Seen by NuSTAR

Autor: A. Bodaghee, J.-L. Chiu, J. A. Tomsick, V. Bhalerao, E. Bottacini, M. Clavel, C. Cox, F. Fürst, M. J. Middleton, F. Rahoui, J. Rodriguez, P. Romano, J. Wilms

Publikováno v: The Astrophysical Journal, Vol 951, Iss 1, p 37 (2023)

We report on a timing and spectral analysis of a 50 ks NuSTAR observation of IGR J16320−4751 (= AX J1631.9−4752), a high-mass X-ray binary hosting a slowly rotating neutron star. In this observation from 2015, the spin period was 1308.8 ± 0.4 s

Externí odkaz: https://doaj.org/article/22cd9a460a05433f949914cab1fe47d8

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Akademický článek

GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole

Autor: M. Obst, K. Pottschmidt, A. Lohfink, J. Wilms, M. Böck, D. M. Smith, J. A. Tomsick, I. Kreykenbohm

Publikováno v: Acta Polytechnica, Vol 51, Iss 6 (2011)

GRS 1758–258 is the least studied of the three persistent black hole X-ray binaries in our Galaxy. It is also one of only two known black hole candidates, including all black hole transients, which shows a decrease of its 3-10 keV flux when enterin

Externí odkaz: https://doaj.org/article/0ae43614b6734165b2bb6d9cd899ca16

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Report

Formation of the compact jets in the black hole GX 339-4

Autor: Corbel, S., Aussel, H., Broderick, J. W., Chanial, P., Coriat, M., Maury, A. J., Buxton, M., Tzioumis, J. A. Tomsick A., Markoff, S., Rodriguez, J., Bailyn, C., Brocksopp, C., Fender, R., Petrucci, P. O., Cadolle-Bel, M., Calvelo, D., Harvey-Smith, L.

Galactic black hole binaries produce powerful outflows with emit over almost the entire electromagnetic spectrum. Here, we report the first detection with the Herschel observatory of a variable far-infrared source associated with the compact jets of

Externí odkaz: http://arxiv.org/abs/1303.2551

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High resolution X-ray spectroscopy of V4641 Sgr during its 2020 outburst

Autor: A W Shaw, J M Miller, V Grinberg, D J K Buisson, C O Heinke, R M Plotkin, J A Tomsick, A Bahramian, P Gandhi, G R Sivakoff

Publikováno v: Monthly Notices of the Royal Astronomical Society. 516:124-137

We observed the Galactic black hole X-ray binary V4641 Sgr with the high resolution transmission gratings on Chandra during the source's 2020 outburst. Over two epochs of Chandra gratings observations, we see numerous highly ionized metal lines, supe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd7c2ad51c7c7143c7760a1cb0b01d34
https://doi.org/10.1093/mnras/stac2213

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High-density disc reflection spectroscopy of low-mass active galactic nuclei

Autor: L Mallick, A C Fabian, J A García, J A Tomsick, M L Parker, T Dauser, D R Wilkins, B De Marco, J F Steiner, R M T Connors, G Mastroserio, A G Markowitz, C Pinto, W N Alston, A M Lohfink, P Gandhi

Publikováno v: Monthly Notices of the Royal Astronomical Society. 513:4361-4379

The standard alpha-disc model predicts an anti-correlation between the density of the inner accretion disc and the black hole mass times square of the accretion rate, as seen in higher mass ($M_{\rm BH}>10^{6} M_{\odot}$) active galactic nuclei (AGNs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f81b82f5cb6d7bec277778b37b5fbbf0
https://doi.org/10.1093/mnras/stac990

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