Yao, Yangsen, Schulz, Norbert, Wang, Q. Daniel, Nowak, Michael
The iron depletion level and the gas-phase iron abundance in the hot ~10^6 K interstellar medium (ISM) is critical to the understanding of its energy balance as well as the thermal sputtering,...
Führungsrelevante Prozesse : Systematisierung und Gestaltung (2006)
Zugl.: Stuttgart, Univ., Diss., 2006
Führungsrelevante Prozesse : Systematisierung und Gestaltung (2006)
Zugl.: Stuttgart, Univ., Diss., 2006
Is the `IR Coincidence' Just That? (2005)
Nowak, Michael, Wilms, Joern, Heinz, Sebastian, Pooley, Guy, Pottschmidt, Katja, Corbel, Stephane
(Abridged) Motch (1985) suggested that in the hard state of GX 339-4 the soft X-ray power-law extrapolated backward in energy agrees with the IR flux. Corbel & Fender (2002) showed that the hard...
Zur Rolle der Apoptose in der Induktion von Immuntoleranz: Beispiel Nickel / (2005)
Düsseldorf, Univ., Diss., 2005 (Nicht für den Austausch).
Chandra Observations of the Interacting NGC 4410 Galaxy Group (2003)
Smith, Beverly J., Nowak, Michael, Donahue, Megan, Stocke, John
We present high resolution X-ray imaging data from the ACIS-S instrument on the Chandra telescope of the nearby interacting galaxy group NGC 4410. Four galaxies in the inner portion of this group are...
Astronomy Astrophysics manuscript no. h3854 October 18, 2002 (2002)
Sera Marko, Michael Nowak, Rob Fender, Heino Falcke
The Galactic black hole candidate X-ray binary GX 339 4 spends most of its time in the low/hard state, making it an ideal candidate for modeling the assumedly low accretion phase. The radio emission...
Nowak, Michael, Heinz, Sebastian, Begelman, Mitchell
During a previous outburst phase, the neutron star 4U 2129+47 exhibited evidence for a spatially extended corona via broad, partial X-ray eclipses occurring periodically on the 5.24 hr orbit. Since...
A Deep X-Ray Observation Of Ngc 4258 And Its Surrounding Field (2000)
Christopher Reynolds, Michael Nowak, Philip Maloney
We present a deep X-ray observation of the low-luminosity active galactic nucleus in NGC 4258 (M 106) using the Advanced Satellite for Cosmology and Astrophysics (ASCA). Confirming previous results,...
Wilms, Joern, Nowak, Michael, Dove, James B., Fender, Robert P., Di Matteo, Tiziana
We discuss a series of observations of the black hole candidate GX 339-4 in low luminosity, spectrally hard states. We present spectral analysis of three separate archival Advanced Satellite for...
Hannover, Universiẗat, Diss., 1999.
Hannover, Universiẗat, Diss., 1999 (Nicht für den Austausch).
Low Luminosity States Of The Black Hole Candidate GX 339-4. II. Timing Analysis (1998)
Here we present timing analysis of a set of eight Rossi X-ray Timing Explorer (RXTE) observations of the black hole candidate GX 339--4 that were taken during its hard/low state. On long time scales,...
RXTE Observation of Cygnus X-1: II. Timing Analysis (1998)
Michael Nowak, Brian Vaughan, Wilms James, Mitchell Begelman
We present timing analysis for a Rossi X-ray Timing Explorer observation of Cygnus X-1 in its hard/low state. This was the first RXTE observation of Cyg X-1 taken after it transited back to this...
We describe how the coherence function---a Fourier frequency--dependent measure of the linear correlation between time series measured simultaneously in two energy channels---can be used in...
Münster (Westfalen), Univ., Diss., 1982.
Dresden, Techn. Univ., Fak. für Naturwiss. u. Mathematik, Diss. A, [1976.] (Nicht f. d. Austausch.).