A Model of Polarized X-ray Emission from Twinkling Synchrotron Supernova Shells (2009)
Bykov, A. M., Uvarov, Yu. A., Herder, J. W. Den, Kaastra, J. S.
Synchrotron X-ray emission components were recently detected in many young supernova remnants (SNRs). There is even an emerging class - SN1006, RXJ1713.72-3946, Vela Jr, and others - that is...
The search for decaying Dark Matter (2009)
Herder, J. W. Den, Boyarsky, A., Ruchayskiy, O., Abazajian, K., Frenk, C., Hansen, S., ...
We propose an X-ray mission called Xenia to search for decaying superweakly interacting Dark Matter particles (super-WIMP) with a mass in the keV range. The mission and its observation plan are...
Natalucci, L., Feroci, M., Quadrini, E., Ubertini, P., Piro, L., Herder, J. W. Den, ...
The success of the SWIFT/BAT and INTEGRAL missions has definitely opened a new window for follow-up and deep study of the transient gamma-ray sky. This now appears as the access key to important...
EDGE: explorer of diffuse emission and gamma-ray burst explosions (2008)
Herder, J.W. Den, Piro, L., Ohashi, T., Amati, L., Atteia, J., Barthelmy, S.D., ...
How structures of various scales formed and evolved from the early Universe up to present time is a fundamental question of astrophysics. EDGE will trace the cosmic history of the baryons from the...
EDGE: Explorer of Diffuse emission and Gamma-ray burst Explosions (2007)
Piro, L., Herder, J. W. Den, Ohashi, T.
How structures on various scales formed and evolved from the early Universe up to present time is a fundamental question of astrophysical cosmology. EDGE will trace the cosmic history of the baryons...
Status of the XMM-Newton cross-calibration with SASv6.5.0 (2005)
Stuhlinger, M., Altieri, B., Baskill, D., Dennerl, K., Esquej, M. P., Freyberg, M., ...
Further achievements of the XMM-Newton cross-calibration - XMM internal as well as with other X-ray missions - are presented. We explain the major changes in the new version SASv6.5 of the XMM-Newton...
Zane, S., Ramsay, G., Jimenez-Garate, M. A., Herder, J. W. Den, Still, M., Boyd, P. T., ...
We present the results of a series of XMM-Newton EPIC and OM observations of Her X-1, spread over a wide range of the 35 d precession period. We confirm that the spin modulation of the neutron star...
The interstellar oxygen-K absorption edge as observed by XMM-Newton (2003)
De Vries, C. P., Herder, J. W. Den, Boggende, A. J. Den, Rasmussen, A. P.
High resolution X-ray spectra of the Reflection Grating Spectrometer (RGS) on board the XMM satellite are used to resolve the oxygen K absorption edge. By combining spectra of low and high extinction...
Performance and results of the reflection grating spectrometers onboard XMM-Newton (2003)
Herder, J.W. Den, Brinkman, A.C., Kahn, S.M., Branduardi-Raymont, G., Audard, M., Behar, E., ...
Kaastra, J. S., Lieu, R., Tamura, T., Paerels, F. B. S., Herder, J. W. Den
We investigate a sample of 14 clusters of galaxies observed with XMM-Newton in a search for soft X-ray excess emission. In five of these clusters a significant soft excess is evident. This soft X-ray...
Sakelliou, I., Peterson, J. R., Tamura, T., Paerels, F. B. S., Kaastra, J. S., Belsole, E., ...
We present high-resolution X-ray spectroscopic observations of M87 with the Reflection Grating Spectrometers on XMM-Newton. We detect strong K-shell line emission from N, O, Ne, Mg, some emission...
Jimenez-Garate, M. A., Hailey, C. J., Herder, J. W. Den, Zane, S., Ramsay, G.
We analyze the high-resolution X-ray spectrum of Hercules X-1, an intermediate-mass X-ray binary, which was observed with the XMM-Newton Reflection Grating Spectrometer. We measure the elemental...
X-ray line emission in Hercules X-1 (2002)
Jimenez-Garate, M. A., Hailey, C. J., Herder, J. W. Den, Zane, S., Ramsay, G.
We find line emission from the hydrogen- and/or helium-like ions of Ne, O, N and C in the low and short-on states of Her X-1, using the XMM-Newton Reflection Grating Spectrometer. The emission line...
XMM-Newton EPIC observations of Her X-1 (2002)
Ramsay, G., Zane, S., Jimenez-Garate, M. A., Herder, J. W. Den, Hailey, C. J.
We present spin-resolved X-ray data of the neutron star binary Her X-1. We find evidence that the Iron line at 6.4 keV originates from the same location as the blackbody X-ray component. The line...
Can a Dusty Warm Absorber Model Reproduce the Soft X-ray Spectra of MCG-6-30-15 and Mrk 766? (2001)
Sako, M., Kahn, S. M., Branduardi-Raymont, G., Kaastra, J. S., Brinkman, A. C., Page, M. J., ...
XMM-Newton RGS spectra of MCG-6-30-15 and Mrk 766 exhibit complex discrete structure, which was interpreted in a paper by Branduardi-Raymont et al. (2001) as evidence for the existence of...
Stellar Coronae with XMM-Newton RGS II. X-ray Variability (2001)
Audard, M., Gudel, M., Boggende, A.J. Den, Brinkman, A.C., Herder, J.W. Den, Kaastra, J.S., ...
Stellar Coronae with XMM-Newton RGS I. Coronal Structure (2001)
Gudel, M., Audard, M., Boggende, A.J. Den, Brinkman, A.C., Herder, J.W. Den, Kaastra, J.S., ...
Stellar Coronae with \textit{XMM-Newton} RGS. I. Coronal Structure (2000)
Guedel, M., Audard, M., Boggende, A. J. Den, Brinkman, A. C., Herder, J. W. Den, Kaastra, J. S., ...
First results from high-resolution coronal spectroscopy with the {\it XMM-Newton} Reflection Grating Spectrometers (RGS) are reviewed. Five stellar systems (HR 1099, Capella, Procyon, YY Gem, AB Dor)...
Stellar Coronae with \textit{XMM-Newton} RGS. II. X-ray Variability (2000)
Audard, M., Guedel, M., Boggende, A. J. Den, Brinkman, A. C., Herder, J. W. Den, Kaastra, J. S., ...
First results from high-resolution coronal spectroscopy of flares with the Reflection Grating Spectrometers on board the \textit{XMM-Newton} satellite are reviewed. Rotational modulation in the X-ray...
Brinkman, A. C., Behar, E., Guedel, M., Audard, M., Branduardi-Raymont, G., ...
The RS CVn binary system HR 1099 was extensively observed by the XMM-Newton observatory in February 2000 as its first-light target. A total of 570 ks of exposure time was accumulated with the...
High-Resolution spectroscopy of the low-mass X-ray binary EXO 0748-67 (2000)
Cottam, J., Kahn, S. M., Brinkman, A. C., Herder, J. W. Den, Erd, C.
We present initial results from observations of the low-mass X-ray binary EXO 0748-67 with the Reflection Grating Spectrometer on board the XMM-Newton Observatory. The spectra exhibit discrete...
Initial results from COMPTEL onboard GRO (1993)
Schoenfelder, V., Bennett, K., Boer, H. De, Busetta, M., Collmar, W., ...
Initial results from COMPTEL onboard GRO (1993)
Schoenfelder, V., Bennett, K., Boer, H. De, Busetta, M., Collmar, W., ...