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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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217 papers · 1 filter
When Supermassive Black Holes were growing: Clues from Deep X-ray Surveys
Guenther Hasinger
Merging the Chandra and XMM-Newton deep surveys with the previously identified ROSAT sample, almost 1000 AGN-1 covering five orders of magnitude in 0.5-2 keV flux limit and six ord…
Discovery of a Be/X-ray Binary Consistent with the Position of GRO J2058+42
Colleen A. Wilson, Martin C. Weisskopf, Mark H. Finger +4
GRO J2058+42 is a 195 s transient X-ray pulsar discovered in 1995 with BATSE. In 1996, RXTE located GRO J2058+42 to a 90% confidence error circle with a 4' radius. On 20 February 2…
Deep VLT V-band Imaging of the Field of a z=10 Candidate Galaxy: Below the Lyman Limit?
M. D. Lehnert, N. M. Forster Schreiber, M. N. Bremer
We present a deep 16.8 ks V-band image of the field of a candidate z=10 galaxy magnified by the foreground (z=0.25) cluster A1835. The image was obtained with FORS1 on VLT-Kueyen t…
XMM-Newton detection of type I X-ray bursts in M 31
W. Pietsch, F. Haberl
We searched for X-ray bursts in XMM-Newton archival data of X-ray sources in M 31 globular clusters (GCs) and GC candidates. We detected two bursts simultaneously in EPIC pn and MO…
Kinematic and chemical evolution of early-type galaxies
B. L. Ziegler, D. Thomas, A. Boehm +3
We investigate in detail 13 early-type field galaxies with 0.2<z<0.7 drawn from the FORS Deep Field. Since the majority (9 galaxies) is at z~0.4, we compare the field galaxies to 2…
STIS ultraviolet/optical spectroscopy of `warm' ultraluminous infrared galaxies
D. Farrah, J. A. Surace, S. Veilleux +2
(Abridged) We present high spatial resolution ultraviolet and optical spectroscopy, obtained using the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope, of…
The stellar mass function of galaxies to z ~ 5 in the Fors Deep and GOODS-S fields
N. Drory, M. Salvato, A. Gabasch +4
We present a measurement of the evolution of the stellar mass function (MF) of galaxies and the evolution of the total stellar mass density at 0<z<5. We use deep multicolor data in…
Discovery of a bright X-ray transient in the Galactic Center with XMM-Newton
D. Porquet, N. Grosso, V. Burwitz +4
We report the discovery of a bright X-ray transient object, XMMU J174554.4-285456, observed in outburst with XMM-Newton on October 3, 2002,and located at 6.3' from SgrA*, the super…
The Evolution of [OII] Emission from Cluster Galaxies
Fumiaki Nakata, Richard G. Bower, Michael L. Balogh +1
We investigate the evolution of the star formation rate in cluster galaxies. We complement data from the CNOC1 cluster survey (0.15<z<0.6) with measurements from galaxy clusters in…
Possible AGN Shock Heating in the Cool Core Galaxy Cluster Abell 478
Alastair J. R. Sanderson, Alexis Finoguenov, Joseph J. Mohr
We present a detailed X-ray study of the intracluster medium (ICM) of the nearby, cool-core galaxy cluster Abell 478, with Chandra and XMM observations. Using a wavelet smoothing h…
The density of very massive evolved galaxies to z~1.7
P. Saracco, M. Longhetti, P. Severgnini +8
We spectroscopically identified 7 massive evolved galaxies with magnitudes 17.8<K<18.4 at 1.3<z<1.7 over an area of ~160 arcmin^2 of the MUNICS survey. Their rest-frame K-band abso…
3-200 keV spectral states and variability of the INTEGRAL Black Hole binary IGR J17464-3213
F. Capitanio, P. Ubertini, A. Bazzano +12
On March 2003, IBIS, the gamma-ray imager on board the INTEGRAL satellite, detected an outburst from a new source, IGR J17464-3213, that turned out to be a HEAO-1 transient, H1743-…
The connection between star formation and stellar mass: Specific star formation rates to redshift one
Georg Feulner, Yuliana Goranova, Niv Drory +2
We investigate the contribution of star formation to the growth of stellar mass in galaxies over the redshift range 0.5 < z < 1.1 by studying the redshift evolution of the specific…
Magnetic turbulence in the plasma sheet
Z. Vörös, W. Baumjohann, R. Nakamura +8
Small-scale magnetic turbulence observed by the Cluster spacecraft in the plasma sheet is investigated by means of a wavelet estimator suitable for detecting distinct scaling chara…
Fe XXV and Fe XXVI lines from low velocity, photoionised gas in the X-ray spectra of AGN
Stefano Bianchi, Giorgio Matt, Fabrizio Nicastro +2
We have calculated the equivalent widths of the absorption lines produced by Fe XXV and Fe XXVI in a Compton-thin, low-velocity photoionised material illuminated by the nuclear con…
INTEGRAL and XMM-Newton Observations of GRB040106
L. Moran, S. Mereghetti, D. Gotz +10
On January 6th 2004, the IBAS burst alert system triggered the 8th gamma-ray burst (GRB) to be located by the INTEGRAL satellite. The position was determined and publicly distribut…
Candidate Type II Quasars from the SDSS: III. Spectropolarimetry Reveals Hidden Type I Nuclei
Nadia L. Zakamska, Gary D. Schmidt, Paul S. Smith +7
We have conducted spectropolarimetry of 12 type II (obscured) quasar candidates selected from the spectroscopic database of the Sloan Digital Sky Survey based on their emission lin…
The RASS-SDSS Galaxy Cluster Survey. III. Scaling relations of galaxy clusters
P. Popesso, A. Biviano, H. Bhoeringer +2
We use the RASS-SDSS galaxy cluster sample to compare the quality of optical and X-ray luminosities as predictors of other cluster properties such as their masses, temperatures, an…
A VLT spectroscopic survey of RX J0152.7-1357, a forming cluster of galaxies at z=0.837
R. Demarco, P. Rosati, C. Lidman +12
We present the results of an extensive spectroscopic survey of RX J0152.7-1357, one of the most massive distant clusters of galaxies known. Multi-object spectroscopy, carried out w…
XMM-Newton observations of the Lockman Hole: III. A relativistic Fe line in the mean X-ray spectra of type-1 and type-2 AGN
A. Streblyanska, G. Hasinger, A. Finoguenov +3
Using the 770 ksec XMM-Newton survey of the Lockman Hole field in combination with extensive optical identifications of the AGN population, we derive an average rest-frame spectrum…
Propagation of cosmic rays: nuclear physics in cosmic-ray studies
I. V. Moskalenko, A. W. Strong, S. G. Mashnik
The nuclei fraction in cosmic rays (CR) far exceeds the fraction of other CR species, such as antiprotons, electrons, and positrons. Thus the majority of information obtained from…
PAH emission variations within the resolved starbursts of NGC253 and NGC1808
L. E. Tacconi-Garman, E. Sturm, M. Lehnert +3
(ABRIDGED) We have undertaken a programme of 3 micron narrowband imaging of a sample of nearby template galaxies covering a wide range of metallicity, star formation activity, and…
Measurement of the Ion Drag Force in a Complex DC-Plasma Using the PK-4 Experiment
M. H. Thoma, H. Hoefner, S. A. Khrapak +8
The force on a microparticle in a complex plasma by streaming ions, the so-called ion drag force, is not well known. However, it is important for the understanding of interesting p…
Jet-Disc coupling in the accreting black hole XTEJ1118+480
Julien Malzac, Andrea Merloni, Andrew C. Fabian
We interpret the rapid correlated UV/optical/ X-ray variability of XTEJ1118+480 as a signature of the coupling between the X-ray corona and a jet emitting synchrotron radiation in…