Zobrazeno 1 - 10
of 61
pro vyhledávání: '"J. A. Tomsick"'
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
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
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
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
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
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
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
Autor:
G. Mastroserio, B. W. Grefenstette, P. Thalhammer, D. J. K. Buisson, M. C. Brumback, R. M. Ludlam, R. M. T. Connors, J. A. García, V. Grinberg, K. K. Madsen, H. Miyasaka, J. A. Tomsick, J. Wilms
Due to the structure of the NuSTAR telescope, photons at large off-axis (> 1deg) can reach the detectors directly (stray light), without passing through the instrument optics. At these off-axis angles NuSTAR essentially turns into a collimated instru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80b6f8a6e3fe6f5a7880b314362612de
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/21133
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/21133
Autor:
R. M. Ludlam, B. W. Grefenstette, M. C. Brumback, J. A. Tomsick, D. J. K. Buisson, B. M. Coughenour, G Mastroserio, D. Wik, R. Krivonos, A. D. Jaodand, K. K. Madsen
We present an updated catalog of StrayCats (a catalog of NuSTAR stray light observations of X-ray sources) that includes nearly 18 additional months of observations. StrayCats v2 has an added 53 sequence IDs, 106 rows, and 3 new identified stray ligh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5378686eb81ae45e1e23105acaa827a5
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 517 (2), pp.3034-3044. ⟨10.1093/mnras/stac2819⟩
Monthly Notices of the Royal Astronomical Society, 2022, 517 (2), pp.3034-3044. ⟨10.1093/mnras/stac2819⟩
Since its launch, the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) satellite has discovered hundreds of X-ray sources, many of which lack proper classification. This mission also led to the discovery of new categories of high mass X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69a01492cd97e921fa4ccdd55f4e8a45