Zobrazeno 1 - 10
of 294
pro vyhledávání: '"K. Pottschmidt"'
Autor:
R. M. Ludlam, C. Malacaria, E. Sokolova-Lapa, F. Fuerst, P. Pradhan, A. W. Shaw, K. Pottschmidt, S. Pike, G. Vasilopoulos, J. Wilms, J. A. García, K. Madsen, D. Stern, C. Maitra, M. Del Santo, D. J. Walton, M. C. Brumback, J. van den Eijnden
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Accreting neutron stars (NSs) represent a unique laboratory for probing the physics of accretion in the presence of strong magnetic fields (B ≳ 108 G). Additionally, the matter inside the NS itself exists in an ultra-dense, cold state that cannot b
Externí odkaz:
https://doaj.org/article/40471cbe8bd040df8c4284253ba4023e
Autor:
Hannah Moon, Daniel R. Wik, V. Antoniou, M. Eracleous, Ann E. Hornschemeier, Margaret Lazzarini, Bret D. Lehmer, Neven Vulic, Benjamin F. Williams, T. J. Maccarone, K. Pottschmidt, Andrew Ptak, Mihoko Yukita, Andreas Zezas
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 167 (2024)
Using hard ( E > 10 keV) X-ray observations with NuSTAR, we are able to differentiate between the accretion states, and thus compact object types, of neutron stars (NSs) and black holes (BHs) in X-ray binaries (XRBs) in M31, our nearest Milky Way–t
Externí odkaz:
https://doaj.org/article/ec331e507f57451da6b31bc2c721fe6e
Autor:
M. Kühnel, S. Müller, I. Kreykenbohm Kreykenbohm, F.-W. Schwarm, C. Grossberger, B. T. Dauser, M. A. Nowak, K. Pottschmidt, C. Ferrigno, R. E. Rothschild, D. Klochkov, R. Staubert, J. Wilms
Publikováno v:
Acta Polytechnica, Vol 55, Iss 2, Pp 126-127 (2015)
Parallel computing and steadily increasing computation speed have led to a new tool for analyzing multiple datasets and datatypes: fitting several datasets simultaneously. With this technique, physically connected parameters of individual data can be
Externí odkaz:
https://doaj.org/article/70c81cc1947c461a886c0807d3ccdc41
Autor:
V. Grinberg, I. Kreykenbohm, F. Fürst, J. Wilms, K. Pottschmidt, M. Cadolle Bel, J. Rodriguez, D. M. Marcu, S. Suchy, A. Markowitz, M. A. Nowak
Publikováno v:
Acta Polytechnica, Vol 51, Iss 1 (2011)
INTEGRAL is one of the few instruments capable of detecting X-rays above 20 keV. It is therefore in principle well suited for studying X-ray variability in this regime. Because INTEGRAL uses coded mask instruments for imaging, the reconstruction of l
Externí odkaz:
https://doaj.org/article/b1f0999680e8406e910ef275918e3d5c
Publikováno v:
Acta Polytechnica, Vol 51, Iss 6 (2011)
We present an analysis of the X-ray spectra of the young, Crab-like pulsar PSR B1509–58 (pulse period P ~ 151ms) observed by RXTE over 14 years since the beginning of the mission in 1996. The uniform dataset is especially well suited for studying t
Externí odkaz:
https://doaj.org/article/4a3f41a337c24e4e908f9151f24a9164
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
Publikováno v:
Acta Polytechnica, Vol 51, Iss 1 (2011)
The X-ray luminosity of black holes is produced through the accretion of material from their companion stars. Depending on the mass of the donor star, accretion of the material falling onto the black hole through the inner Lagrange point of the syste
Externí odkaz:
https://doaj.org/article/ad9f21c04f6f46289b33c9daa2944b19
Publikováno v:
Acta Polytechnica, Vol 51, Iss 1 (2011)
We present a detailed spectral and timing analysis of the High Mass X-ray Binary (HMXB) 4U 1909+07 with INTEGRAL and RXTE. 4U1909+07 is a persistent accreting X-ray pulsar with a period of approximately 605 s. The period changes erratically consisten
Externí odkaz:
https://doaj.org/article/83c1d04feedf40e09798376b47ca2fa4
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