Search Publications
Correction to “A statistical comparison of solar wind propagation delays derived from multispacecraft techniques”
Wild, J. A.; Case, N. A.
Abstract Available from http://www.agu.org
Modeled O2 nightglow distributions in the Venusian atmosphere
Bougher, Stephen W.; Melo, Stella M. L.; Strong, Kimberly +2 more
In this paper, we study the global distribution of the O2 Infrared Atmospheric (0-0) emission at 1.27 µm in the Venusian atmosphere with an airglow model in combination with atmospheric conditions provided by a three-dimensional model, the Venus Thermospheric Global Circulation Model. We compare our model simulations with airglow …
Intermediate Velocity Gas Detected Towards the NGC 6752 Globular Cluster
Welsh, Barry Y.; Lallement, Rosine
We present medium resolution ultraviolet absorption measurements recorded with the HST-COS and FUSE spectrographs towards two post-AGB stars (UIT-1 and B1754) associated with the NGC 6752 globular cluster. We have detected intermediate velocity (IV) gas with Vlsr ∼ +38 km s-1 along the 3.9 kpc sight-line to the cluster in the…
Is the Anomalous Microwave Emission due to the Rotation of Interstellar Pahs? Planck Results: PLANCK - AKARI Project
Giard, M.; Ysard, N.; Nakagawa, T. +11 more
Assigning WCS Standards to Rozhen Fits Archive. Preliminary Tests
Borisov, G.; Stanchev, O.
Assigning physical coordinates to FITS image pixels is important to standardize the Rozhen fits files. Among wide spread WCS software available, here we present tests based on the IDL implementation of the WCS standards. Our goal is to apply this implementation for calculating and adding the necessary WCS FITS keywords in the image headers. The ob…
X-Ray Spectral Study of AGN Sources Content in Some Deep Extragalactic XMM-Newton Fields
Misra, R.; Hassan, M. A.; Korany, B. A. +3 more
We undertake a spectral study of a sample of bright X-ray sources taken from six XMM-Newton fields at high galactic latitudes, where AGN are the most populous class. These six fields were chosen such that the observation had an exposure time more than 60 ksec, had data from the EPIC-pn detector in the full-Frame mode and lying at high galactic lat…
Bottom-up modelling of gamma-ray blazars
Tammi, Joni
I discuss blazar modelling from the point of view of the radiating particles and emphasise the role of low-energy emission in high-energy variability studies. I address problems that can arise from focusing on the high-energy spectrum and variability without taking into account the low-frequency behaviour and data - especially if the low-frequency…
Exposing the hidden white dwarf binary origin by means of a synthetic population model for nearby single stars
Schröder, K. -P.; Dawson, S. A.
We present a new synthetic population model for local thin-disc (d≤ 100 pc) single-star white dwarfs (WDs), including effective temperature and mass distribution. The only two parameters of the synthetic population model are the initial mass function (IMF) and the star-formation rate (SFR). Depletion losses through kinematic heating of the stellar…
Is there a Central Compact Object within G290.1--0.8?
Bocchino, F.; Combi, J. A.; García, F. +3 more
We study the central region of the supernova remnant (SNR) G290.1--0.8 in order to search for a possible compact stellar remnant associated to it. Our analysis of XMM-Newton and Chandra archival observations reveals three point-like sources. Two of them are hard X-ray sources, possibly Active Galactic Nuclei. The third one, located very close to t…
Young stars in gas-dust disks. I. Fomalhaut
Arkharov, A. A.; Ruban, E. V.
This is a single-factor analysis of the variance of the average quasimonochromatic magnitudes of Fomalhaut, α PsA, in the 325-1080 nm spectral range for different observation seasons collected in the Pulkovo Spectrophotometric Data Base (PSDB). The overall variance of the data combined over several seasons is decomposed into components characteriz…