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Chandrayaan-1 Real-Time Orbit Determination

Vighnesam, N. V.; Sonney, Anatta; Subramanian, Boominathan

X-Ray and Gamma-Ray Observations of the Inner Region of Mgro J2019+37

Paredes, J. M.; Zabalza, V.

In order to better understand the puzzling extended TeV source MGRO J2019+37, we have performed a multiwavelength campaign from radio to X-ray covering most of its extent. Here we present an X-ray mosaic including a new observation and two archival observations performed by the X-ray observatory XMM-Newton. We have also observed the source with th…

Estimation of C II and C II* column densities along Galactic sight-lines

Sofia, Ulysses J.; Babu, B. R. S.; Murthy, Jayant +1 more

We present interstellar C II (1334.5323 Å) and C II* (1335.7077 Å) column density measurements along 14 Galactic sight-lines. These sight-lines sample a variety of Galactic disk environments and include paths that range nearly two orders of magnitude in average hydrogen densities (<n(H)>) along the lines of sight. Five of the sight-lines sho…

Hubble Space Telescope Astrometry of Trans-Neptunian Objects

Noll, K. S.; Benecchi, S. D.

We present 1428 individual astrometric measurements of 256 trans-Neptunian objects made with Hubble Space Telescope (HST). The observations were collected over three years with two instruments, the Wide Field Planetary Camera 2 and the Advanced Camera for Surveys High Resolution Camera, as part of four HST programs. We briefly describe the data an…

In-situ Observations of a Co-rotating Interaction Region at Venus Identified by IPS and STEREO

Barabash, S.; Grande, M.; Dorrian, G. D. +2 more

This paper reports on the first combination of results from in-situ plasma measurements at Venus, using data from Venus Express, and remote sensing data from observations of interplanetary scintillation (IPS). In so doing, we demonstrate the value of combining remote sensing and in-situ techniques for the purpose of investigating interaction betwe…

Influence of the Conversion Layer on the Dispersion Relation of Waves in the Solar Atmosphere

Haberreiter, M.; Finsterle, W.

Observations carried out with the Magneto-Optical Filter at Two Heights (MOTH) experiment show upward-traveling wave packets in magnetic regions with frequencies below the acoustic cut-off. We demonstrate that the frequency dependence of the observed travel times, i.e. the dispersion relation, shows significant differences in magnetic and non-magn…

Deprojection technique for galaxy cluster considering the point spread function

Chen, Yong; Wang, YuSa; Jia, ShuMei

We present a new method for the analysis of Abell 1835 observed by XMM-Newton. The method is a combination of the Direct Demodulation technique and deprojection. We eliminate the effects of the point spread function (PSF) with the Direct Demodulation technique. We then use a traditional deprojection technique to study the properties of Abell 1835.…

Fe Kα line profile in AGNs: average shape and redshift dependence

Zhao, Gang; Zhang, Shu; Hu, Chen +2 more

We collect a sample of 381 (271 type I) active galactic nuclei (AGNs) with XMM-Newton observations for an analysis of the dependence of Fe Kα profiles on redshifts to test the potential cosmological evolution of spins of supermassive black holes (SMBHs). The sample spans a redshift range of z = 0.0008 -4.76, which allows us to rebin the sample int…

Toward Understanding the Environment of R Monocerotis from High-Resolution Near-Infrared Polarimetric Observations

Doyon, R.; Bastien, P.; Lafrenière, D. +3 more

High-resolution H-band imaging polarimetric observations of R Mon obtained at the Canada-France-Hawaii telescope are presented. These data show a centrosymmetric pattern with elongated intensity contours mostly due to the presence of the companion R Mon B. We also consider published R-band data, which show an extended right-angle conical reflectio…

EDI Data Products in the Cluster Active Archive

Quinn, J.; Paschmann, G.; Vaith, H. +4 more

The Electron Drift Instrument (EDI) contribution to the Cluster Active Archive (CAA) is described. Presented are descriptions of the EDI instrument, the various CAA/EDI data products, the CAA ingestion schedule and the current EDI status. An example of a science application is given for one of the main EDI data products available in the CAA.