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236 papers · 1 filter
What Do Electromagnetic Plasmas Tell Us about Quark-Gluon Plasma?
Stanislaw Mrowczynski, Markus H. Thoma
Since the quark-gluon plasma (QGP) reveals some obvious similarities to the well-known electromagnetic plasma (EMP), an accumulated knowledge on EMP can be used in the QGP studies.…
Probing the Disk-jet Connection of the Radio Galaxy 3C120 Observed with Suzaku
Jun Kataoka, James N. Reeves, Kazushi Iwasawa +13
Broad line radio galaxies (BLRGs) are a rare type of radio-loud AGN, in which the broad optical permitted emission lines have been detected in addition to the extended jet emission…
511 keV line from millisecond pulsars in the Galactic center
Wei Wang
Observations of a strong and extended positron-electron annihilation line emission in the Galactic center (GC) region by the SPI/INTEGRAL are challenging to the existing models of…
Discovery of an X-ray Nebula associated with PSR J2124-3358
C. Y. Hui, W. Becker
We report the discovery of an X-ray nebula associated with the nearby millisecond pulsar PSR J2124-3358. This is the first time that extended emission from a solitary millisecond p…
A Fast-Moving Central Compact Object in Puppis-A
C. Y. Hui, W. Becker
Utilizing two Chandra High Resolution Camera (HRC-I) observations with an epoch separation of somewhat more than five years, we have measured the proper motion of the central compa…
X-ray monitoring of optical novae in M31 from July 2004 to February 2005
W. Pietsch, F. Haberl, G. Sala +9
Optical novae have recently been identified as the major class of supersoft X-ray sources in M31 based on ROSAT and early XMM-Newton and Chandra observations. This paper reports on…
XMM-Newton Observations of PSR B1957+20
H. H. Huang, W. Becker
We report on XMM-Newton observations of the Black Widow pulsar, PSR B1957+20. The pulsar's X-ray emission is non-thermal and best modeled with a single powerlaw spectrum of photon…
Multi-wavelength and black hole mass properties of Low Luminosity Active Nuclei
F. Panessa, L. Bassani, M. Cappi +6
We investigate the relation between the X-ray nuclear emission, optical emission line, radio luminosity and black hole mass for a sample of nearby Seyfert galaxies. Strong linear c…
XMM-Newton observation of Mrk 110
Th. Boller, I. Balestra, W. Kollatschny
We report on the first XMM-Newton observation of the bright Narrow-Line Seyfert 1 galaxy Mrk 110. We find a narrow Fe K fluorescent line, a broad component FWHM ~ 16500 km/s of the…
An XMM-Newton view of the X-ray flat radio-quiet quasar PG 1416-129
D. Porquet, J. N. Reeves, A. Markowitz +3
(abridged) The radio-quiet quasar PG1416-129 (z=0.129) exhibits atypical optical and X-ray properties. Between 1990 and 2000, in response to its optical continuum decrease, the ``c…
IGR J08408--4503: a new recurrent Supergiant Fast X-ray Transient
D. Gotz, M. Falanga, F. Senziani +3
The supergiant fast X-ray transient IGR J08408-4503 was discovered by INTEGRAL on May 15, 2006, during a bright flare. The source shows sporadic recurrent short bright flares, reac…
The Spectral Energy Distributions of AGN with Double-Peaked Balmer Lines
I. Strateva, W. N. Brandt, M. Eracleous +2
We summarize the optical, UV, and X-ray properties of double-peaked emitters -- AGN with double-peaked Balmer emission lines believed to originate in the AGN accretion disk. We foc…
The XMM-Newton wide-field survey in the COSMOS field: V. Angular Clustering of the X-ray Point Sources
Takamitsu Miyaji, Giovanni Zamorani, Nico Cappelluti +9
We present the first results of the measurements of angular auto-correlation functions (ACFs) of X-ray point sources detected in the XMM-Newton observations of the 2 deg2 COSMOS fi…
The XMM-Newton wide-field survey in the COSMOS field. IV: X-ray spectral properties of Active Galactic Nuclei
V. Mainieri, G. Hasinger, N. Cappelluti +25
We present a detailed spectral analysis of point-like X-ray sources in the XMM-COSMOS field. Our sample of 135 sources only includes those that have more than 100 net counts in the…
The XMM-Newton wide-field survey in the COSMOS field: VI. Statistical properties of clusters of galaxies
A. Finoguenov, L. Guzzo, G. Hasinger +30
We present the results of a search for galaxy clusters in the first 36 XMM-Newton pointings on the COSMOS field. We reach a depth for a total cluster flux in the 0.5-2 keV band of…
The XMM-Newton wide-field survey in the COSMOS field: III. optical identification and multiwavelength properties of a large sample of X-ray selected sources
M. Brusa, G. Zamorani, A. Comastri +31
[ABRIGED] We present the optical identification of a sample of 695 X-ray sources detected in the first 1.3 deg^2 of the XMM-COSMOS survey, down to a 0.5-2 keV (2-10 keV) limiting f…
The XMM-Newton Survey in the Marano Field I. The X-ray data and optical follow-up
M. Krumpe, G. Lamer, A. D. Schwope +6
We report on a medium deep XMM-Newton survey of the Marano Field and optical follow-up observations. The mosaicked XMM-Newton pointings in this optical quasar survey field cover 0.…
Detection of HNC and tentative detection of CN at z=3.9
M. Guelin, P. Salome, R. Neri +8
Molecular line emission from high-redshift galaxies holds great promise for the study of galaxy formation and evolution. The weak signals can only be detected with the largest mm-w…
Photometric Redshifts of Galaxies in COSMOS
B. Mobasher, P. Capak, N. Z. Scoville +26
We measure photometric redshifts and spectral types for galaxies in the COSMOS survey. We use template fitting technique combined with luminosity function priors and with the optio…
Candidate tidal disruption events from the XMM-Newton Slew Survey
P. Esquej, R. D. Saxton, M. J. Freyberg +4
In recent years, giant amplitude X-ray flares have been observed from a handful of non-active galaxies. The most plausible scenario of these unusual phenomena is tidal disruption o…
The XMM-Newton wide-field survey in the COSMOS field: I. Survey description
G. Hasinger, N. Cappelluti, H. Brunner +21
We present the first set of XMM-Newton EPIC observations in the 2 square degree COSMOS field. The strength of the COSMOS project is the unprecedented combination of a large solid a…
The Cosmic Evolution Survey (COSMOS) -- Overview
N. Scoville, H. Aussel, M. Brusa +19
The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGN) and dark matter (DM) with large-scale s…
The Cosmic Evolution Survey (COSMOS): Subaru Observations of the HST COSMOS Field
Y. Taniguchi, N. Scoville, T. Murayama +27
We present deep optical imaging observations of 2 square degree area, covered by the Cosmic Evolution Survey (COSMOS), made by the prime-focus Camera (Supreme-Cam) on the 8.2m Suba…
zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field
S. J. Lilly, O. Le Fevre, A. Renzini +42
zCOSMOS is a large redshift survey that is being undertaken in the COSMOS field using 600 hours of observation with the VIMOS spectrograph on the 8-m VLT. The survey is designed to…