XMM-Newton First Science Results

This page provides the set of XMM-Newton Science Results as presented on December 6, 2000 during the Launch Anniversary Press Conference at ESA HQ, Paris.

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Fig. 1 - Clusters of galaxies

Densely concentrated clusters of galaxies tend to have giant galaxies at their center and they are held together by their own gravity. Such clusters are filled with X-ray emitting gas at temperatures reaching temperatures of 10 million degrees. The key tool used to understand the physics of this gas and its role in the structure and evolution of the cluster is X-ray spectroscopy. XMM-Newton targets have included a number of galaxy clusters, including Abell S 1101(=Sérsic 159-03), Abell 1835 and Abell 1795.

Top left: X-ray image for Abell S 1101(=Sérsic 159-03) obtained by XMM-Newton's European Photon Imaging Camera (EPIC-MOS). Analysis has shown a sharp temperature drop near the outer part of the cluster, which might be associated with the transition from cluster to supercluster. Courtesy J. Kaastra, SRON, Utrecht, NL.

Middle right: Past studies have implied the presence of cool gas near the centers of clusters of galaxies. This, and other, characteristics have been studied in the Abell 1835 cluster of galaxies using the EPIC and RGS instruments on XMM-Newton. Observations have allowed the measurement of both the relative X-ray emission of the cold gas and a detailed study of the spectral properties of total gas distribution. The traditional model for cooling flows is not compatible with these observations, and new models will have to be sought. Courtesy J. Peterson, Columbia Univ., NY, USA.

Bottom left: XMM-Newton has observed the Abell 1795 cluster, one of the best targets for XMM-Newton to study the center of a cluster of galaxies. Its large-scale properties were measured with the EPIC spatially-resolved spectra and the high resolution Reflection Grating Spectrometers (RGS) were used to constrain the temperature structure of the cluster core. Courtesy T. Tamura, SRON, Utrecht, NL.

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Fig. 2 - Abell S 1101 (=Sérsic 159-03)

Shown are the EPIC-MOS X-ray contours of the Sérsic 159-03 cluster of galaxies, superimposed on an optical (Digitised Sky Survey) view of the corresponding region. The contours map the X-ray intensity distribution of the intra-cluster gas and the bottom graph illustrates the radial temperature profile of this X-ray emitting material. Courtesy J. Kaastra, SRON, Utrecht, NL.

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Fig. 3 - Clusters of Galaxies

Spectra extracted from the central regions of the rich galaxy clusters Abell S 1101(=Sérsic 159-03), Abell 1795 and Abell 1835 obtained with XMM-Newton's Reflection Grating Spectrometers (RGS). Courtesy T. Tamura, SRON, Utrecht, NL and J. Peterson, Columbia Univ. , NY, USA.

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Fig. 4 - IRAS 13349+2438

The luminous infrared-loud quasar IRAS 13349+2438, at a redshift of 0.10764, is a source extensively studied in the optical, infrared and X-ray bands. The spectrum obtained with XMM-Newton's Reflection Grating Spectrometer (RGS) shows the presence of a wide range of elements at different levels of ionisation. The most prominent features are the absorption lines of carbon, nitrogen, oxygen, neon and iron. These data, which are extremely rich in detail, can be used for highly precise studies of the warm absorber material thought to be present in our line of sight around the giant black holes in the center of such systems. The best-fit model spectrum is superimposed in red. Courtesy of M. Sako, Columbia Univ., NY, USA.

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Fig. 5 - Supernova remnant N132D

One of the brightest soft X-ray sources in the Large Magellanic Cloud is the supernova remnant N132D. Observations with XMM-Newton's Reflection Grating Spectrometers (RGS), complemented by images taken by the European Photon Imaging Camera (EPIC) have provided highly resolved X-ray spectra of this extended supernova remnant. In the narrow wavelength bands indicated, each EPIC-MOS image maps the distribution of nine different elements. Differences between more and less ionised regions can be noted. Oxygen rich gas is present in an area to the northeastern part of the remnant, where no other elements are emitting X-rays. This may either be relatively cold gas, or is the result of the supernova shockwave interacting with oxygen-rich stellar winds before the stellar explosion. Image courtesy of E. Behar, Columbia Univ., NY, USA.

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Fig. 6 - Coma Cluster

The Coma Cluster, an aggregate thousands of galaxies. The picture is a mosaic of 12 partially overlapping pointings obtained with the EPIC-pn camera. The cluster was chosen during XMM-Newton's performance verification phase to prove the observatory's ability to map and analyse data from large extended X-ray sources.

Bottom, a close-up view of the temperature structure in the inner region of the Coma Cluster of galaxies, highlighting the X-ray hardness and corresponding temperatures around the giant elliptical galaxies NGC 4889 and NGC 4874 and the gas in the central part of the cluster. Courtesy U. Briel, Max-Planck Institut für extraterrestrische Physik, Garching, Germany.

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Fig. 7 - M87

XMM-Newton has provided detailed spectral analysis of the nucleus and jets of the giant elliptical galaxy M87. Observation of this relatively close bright X-ray and radio source situated at the center of the Virgo cluster of galaxies has allowed the first detailed study of the interactions between the thermal and radio emitting plasma in its central region.

Top left, EPIC-pn image of M87 in the energy range 0.5-2 keV. The galaxy's X-ray halo has an almost spherically symmetrical appearance, with the exception of two localised enhancements to the SW and E of the nucleus. Image courtesy of H. Böhringer, Max-Planck Institut für extraterrestrische Physik, Garching, Germany.

Top right, a combined view by both EPIC MOS cameras shows the asymmetric extended X-ray arms of M87. The galaxy's X-ray halo has been subtracted. Image courtesy of E. Belsole, Service d'Astrophysique, CEA Saclay, France.< /P>

Bottom, X-ray mean energy level map of M87 provided by the EPIC MOS camera superimposed on a radio map of the galaxy. Image courtesy of E. Belsole, Service d'Astrophysique, CEA Saclay, France.

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Fig. 8 - Lockman Hole

Combining the images from all EPIC cameras, the Lockman Hole provides the deepest ever X-ray survey of this region where observation of the early Universe is facilitated by the relative absence of intervening, absorbing material. The view gives a "real colour" representation of all the sources, coded according to their X-ray hardness. More than 60 new sources are detected in the 5-10 keV band alone. Image courtesy of G. Hasinger, Astrophysikalisches Institute, Potsdam, Germany.

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XMM-Newton A&A Papers (Special Issue)

All available papers are in both ps and pdf (Acrobat 4) format.


First Author Title Available
J. Cottam High-Resolution Spectroscopy of the low mass X-Ray Binary EXO0748-67 ps pdf
G. Ramsay First XMM-Newton observations of a cataclysmic variable I : Timing Studies of OY Car ps pdf
G. Ramsay First XMM-Newton observations of a cataclysmic variable II : The X-ray spectrm of OY Car ps pdf
P.T. O'Brien XMM-Newton detection of a comptonized accretion disc in the quasar PKS0558-504 ps pdf
M. Cropper Modelling the spin pulse profile of the isolated neutron star RXJ0720.4-3125 observed with XMM-Newton ps pdf
J.N. Reeves XMM-Newton observation of an unusual iron line in the quasar Markarian 205 ps pdf
D.M. Neumann The NGC4839 group falling onto the Coma Cluster observed by XMM-Newton ps pdf
F. Haberl AGN in the XMM-Newton fisrt light image as probes for the interstellar medium in the LMC ps pdf
W. Pietsch XMM-Newton observations of NGC 253 : resolving the emission components in the disk and nuclear area ps pdf
J.W. den Herder The reflection grating spectrometer on board XMM-Newton ps pdf
G. Hasinger XMM-Newton observation of the Lockman Hole ps pdf
M. Guedel The XMM-Newton view of stellar coronae : Coronal structure in the Castor X-ray triplet ps pdf
Th. Boller XMM-Newton observations of the BL Lac MS0737+7441 ps pdf
M. Sako Complex resonance absorption structure in the X-ray spectrum of IRAS13349+2438 ps pdf
E. Behar High resolution X-ray spectroscopy and imaging of supernova remnant N132D ps pdf
J.N. Reeves The first XMM-Newton spectrum of a high redshift quasar - PKS0537-286 ps pdf
R. Willingale New light on the X-ray spectrum of the Crab Nebula ps pdf
S.M. Kahn High resolution X-ray spectroscopy of zeta-Puppis with the XMM-Newton reflection grating spectrometer ps pdf
M. Sasaki XMM-Newton EPIC observation of SMC SNR 0102-72.3 ps pdf
M. Audard The XMM-Newton view of stellar coronae : Flare heating in the coronae of HR1099 ps pdf
M. Audard The XMM-Newton view of stellar coronae : High-Resolution X-ray spectroscopy of Capella ps pdf
W. Brinkmann XMM-Newton observations of Mkn 421 ps pdf
S. Sciortino XMM-Newton survey of the low-metallicity open cluster NGC 2516 ps pdf
M. Arnaud Measuring cluster temperature profiles with XMM/Epic ps pdf
M. Arnaud XMM-Newton observation of the coma galaxy cluster ps pdf
K.O. Mason The XMM-Newton Optical/UV monitor telescope ps pdf
M. Watson The XMM-Newton seredipitous survey. (I) The role of the XMM-Newton Survey Science Centre ps pdf
M. Guedel The XMM-Newton view of stellar coronae : X-ray spectroscopy of the corona of AB Doradus ps pdf
J.P.D. Mittaz UV observations of the galaxy cluster Abell 1795 with the optical monitor on XMM-Newton ps pdf
L. Strueder The European Photon Imaging Camera on XMM-Newton : The pn-CCD camera ps pdf
J.S. Kaastra XMM-Newton observations of the cluster of galaxies Sersic 159-03 ps pdf
A.C. Brinkman First light measurements with the XMM-Newton Reflection Grating Spectrometers : Evidence for an inverse first ionization potential effect and anomalous Ne abundance in the Coronae of HR1099 ps pdf
F. Jansen XMM-Newton observatory I The spacecraft and operations ps pdf
R.S. Warwick The extended X-ray halo of the Crab like SNR G21.5-0.9 ps pdf
Th. Boller Detection of an X-ray periodicity in the narrow line Seyfert galaxy Mrk 766 with XMM-Newton ps pdf
M.J. Page The variable XMM-Newton X-ray spectrum of Markarian 766 ps pdf
G. Branduardi Soft X-ray emission lines from a relativistic accretion disk in MCG-6-30-15 and Mrk 766 ps pdf
F. Paerels A high resolution spectroscopic observation of CAL 83 with XMM-Newton/RGS ps pdf
F. Paerels First XMM-Newton observations of an isolated Neutron star: RXJ 0720.4-3125 ps pdf
T. Tamura X-ray spectroscopy of the Cluster of Galaxies Abell 1795 with XMM-Newton ps pdf
K.J. van der Heyden Detection of X-ray line emission from the shell of SNR B0540-69.3 with XMM-Newton RGS ps pdf
A. Rasmussen The X-ray spectrum of the supernova remnant 1E0102-72.3 ps pdf
M.J.L. Turner The European Photon Imaging Camera on XMM-Newton: The MOS Cameras ps pdf
A. Decourchelle XMM-Newton observation of the Tycho Supernova Remnant ps pdf
H. Boehringer XMM-Newton observations of M87 and its X-ray halo ps pdf
E. Belsole An XMM-Newton study of the sub-structure in the M87's halo ps pdf
J. Peterson X-Ray imaging spectroscopy of Abell 1835 ps pdf
U. Briel A mosaic of the Coma Cluster of galaxies with XMM-Newton ps pdf
J.M.A. Bleeker Cassiopeia A : On the origin of the hard X-ray continuum and the implication of the observed OVIII Ly-alpha/Ly-Beta distribution ps pdf
R. Shirey The central region of M31 observed with XMM-Newton I : Group properties and diffuse emission ps pdf
J.M. Bonnet-Bidaud The eclipsing bursting X-ray binary EXO 0748-676 revisited by XMM-Newton ps pdf
M.J.L. Turner XMM-Newton first light observations of the Hickson Galaxy Group 16 ps pdf
K. Dennerl The first broad band X-ray images and spectra of the 30 Doradus region in the LMC ps pdf
K. Wu XMM-Newton and EPIC and RGS observations of LMC X-3 ps pdf
R. Soria XMM-Newton Optical Monitor observations of LMC X-3 ps pdf
M. Gliozzi XMM-Newton monitoring of X-ray variability in the quasar PKS 0558-504 ps pdf