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Multi-wavelength modeling of the spatially resolved debris disk of HD 107146
Stars: individual: high angular resolution – Methods: stars
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2011/9/28
We aim to constrain the location, composition, and dynamical state of planetesimal populations and dust around the young, sun-like (G2V) star HD 107146}. We consider coronagraphic observations obtaine...
Jets in high-mass microquasars
X-rays: binaries–ISM: jets and outfl ows–Stars: winds, outfl ows–Radiation mechanisms: non-thermal
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2011/9/28
The morphologies of detected jets in X-ray binaries are almost as diverse as their number. This is due to different jet properties and ambient media that these jets encounter. It is important to under...
{\it Suzaku} observation of Galactic supernova remnant CTB 37A (G348.5+0.1)
ISM: supernova remnants− ISM:individual(CTB 37A)− X-rays
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2011/9/28
We present here the results of the observation of CTB 37A obtained with the X-ray Imaging Spectrometer onboard the {\it Suzaku} satellite. The X-ray spectrum of CTB 37A is well fitted by two component...
Analysis of characteristic parameters of large-scale coronal waves observed by STEREO/EUVI
Analysis characteristic parameters large-scale coronal observed
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2011/9/28
The kinematical evolution of four EUV waves, well observed by the Extreme UltraViolet Imager (EUVI) onboard the Solar-Terrestrial Relations Observatory (STEREO), is studied by visually tracking the wa...
Using deep Keck spectroscopy of Lyman break galaxies selected from infrared imaging data taken with WFC3/IR onboard the Hubble Space Telescope, we present new evidence for a reversal in the redshift-d...
Host Galaxy Properties of the Swift BAT Ultra Hard X-ray Selected AGN
Galaxy Properties Swift Hard X-ray Selected AGN
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2011/9/29
We have assembled the largest sample of ultra hard X-ray selected (14-195 keV) AGN with host galaxy optical data to date, with 185 nearby (z<0.05), moderate luminosity AGN from the Swift BAT sample. T...
Evidence for mild deviation from power-law distribution of electrons in relativistic shocks: GRB 090902B
radiation mechanisms: non-thermal - methods: analytical - methods: numerical- gamma-rays: bursts, theory - gamma-ray burst: individual: GRB090902B
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2011/9/29
Many previous studies have determined that the long lasting emission at X-ray, optical and radio wavelengths from gamma-ray bursts (GRBs), called the afterglow, is likely produced by the external forw...
Dust around R Coronae Borealis stars: I. Spitzer/IRS observations
Dust around Borealis stars:observations
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2011/9/29
Spitzer/IRS spectra from 5 to 37 um for a complete sample of 31 R Coronae Borealis stars (RCBs) are presented. These spectra are combined with optical and near-infrared photometry of each RCB at maxim...
A New Microlensing Event in the Doubly-Imaged Quasar Q0957+561
Microlensing Event Doubly-Imaged Quasar
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2011/9/28
We present evidence for ultraviolet/optical microlensing in the gravitationally lensed quasar Q0957+561. We combine new measurements from our optical monitoring campaign at the United States Naval Obs...
GRAVITAS : General Relativistic Astrophysics VIa Timing And Spectroscopy: An ESA M3 mission proposal
General Relativistic Astrophysics Spectroscopy mission proposal
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2011/9/28
GRAVITAS is an X-ray observatory, designed and optimised to address the ESA Cosmic Vision theme of "Matter under extreme conditions". It was submitted as a response to the call for M3 mission proposal...
Mid-infrared interferometry of the massive young stellar object NGC 2264 IRS 1
techniques: interferometric - stars: individual: NGC 2264 IRS 1 - stars: formation-stars: circumstellar matter
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2011/9/28
The optically invisible infrared-source NGC 2264 IRS 1 is thought to be a massive young stellar object (~10 Msun). Although strong infrared excess clearly shows that the central object is surrounded b...
Deep sub electron noise readout in CCD systems using digital filtering techniques
CCD spectroscopy dark matter sub electron noise
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2011/9/28
Scientific CCDs designed in thick high resistivity silicon (Si) are excellent detectors for astronomy, high energy and nuclear physics, and instrumentation. Many applications can benefit from CCDs ult...
Completeness III: identifying characteristic systematics and evolution in galaxy redshift surveys
Cosmology: methods: data analysis – methods:redshift surveys – galaxies: large-scale structure of Universe
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2011/9/28
This paper continues our development of non-parametric tests for analysing the completeness in apparent magnitude of magnitude-redshift surveys. The purpose of this third and final paper in our comple...
Inhomogeneities in molecular layers of Mira atmospheres
Techniques: interferometric – Techniques: photometric – Stars: AGB and post-AGB – Stars: atmospheres – Stars: fun- damental parameters – Stars: mass-loss
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2011/9/28
We obtained K-band spectro-interferometric observations of the Miras R Cnc, X Hya, W Vel, and RW Vel with a spectral resolution of 1500 using the VLTI/AMBER instrument. We obtained concurrent JHKL pho...
The inverse-Compton ghost HDF 130 and the giant radio galaxy 6C 0905+3955: matching an analytic model for double radio source evolution
galaxies: individual: RGJ123617/HDF130, 6C0905+3955 – galaxies: evolution – galaxies: jets – radio continuum: galaxies – X-rays: galaxies.
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2011/9/28
We present new GMRT observations of HDF 130, an inverse-Compton (IC) ghost of a giant radio source that is no longer being powered by jets. We compare the properties of HDF 130 with the new and import...