Search Publications
Missions
Journals
Publication Years
The nuclear gas disk of NGC 1566 dissected by SINFONI and ALMA
Moser, L.; Combes, F.; García-Burillo, S. +5 more
We present the results of near-infrared (NIR) H- and K-band European Southern Observatory SINFONI integral field spectroscopy (IFS) of the Seyfert galaxy
Dust energy balance study of two edge-on spiral galaxies in the Herschel-ATLAS survey
De Looze, Ilse; Baes, Maarten; Bendo, George J. +18 more
Interstellar dust in galaxies can be traced either through its extinction effects on the star light or through its thermal emission at infrared wavelengths. Recent radiative transfer studies of several nearby edge-on galaxies have found an apparent inconsistency in the dust energy balance: the radiative transfer models that successfully explain th…
Two states of magnetotail dipolarization fronts: A statistical study
Nakamura, R.; Baumjohann, W.; Volwerk, M. +2 more
We study the ion density and temperature in the predipolarization and postdipolarization plasma sheets in the Earth's magnetotail using 9 years (2001-2009) of Cluster data. For our study we selected cases when Cluster observed dipolarization fronts (DFs) with an earthward plasma flow greater than 150km/s. We perform a statistical study of the temp…
Identification of new transitional disk candidates in Lupus with Herschel
Prusti, T.; Pilbratt, G. L.; Bouy, H. +4 more
Context. New data from the Herschel Space Observatory are broadening our understanding of the physics and evolution of the outer regions of protoplanetary disks in star-forming regions. In particular they prove to be useful for identifying transitional disk candidates.
Aims: The goals of this work are to complement the detections of disks and…
Proper Motion of the Draco Dwarf Galaxy Based On Hubble Space Telescope Imaging
Piatek, Slawomir; Pryor, Carlton; Olszewski, Edward W.
We have measured the proper motion of the Draco dwarf galaxy using images at two epochs with a time baseline of about two years taken with the Hubble Space Telescope Advanced Camera for Surveys. Wide Field Channels 1 and 2 provide two adjacent fields, each containing a known QSO. The zero point for the proper motion is determined using both backgr…
Properties of Polycyclic Aromatic Hydrocarbons in the Northwest Photon Dominated Region of NGC 7023. III. Quantifying the Traditional Proxy for PAH Charge and Assessing its Role
Boersma, C.; Allamandola, L. J.; Bregman, J.
Polycyclic aromatic hydrocarbon (PAH) emission in the Spitzer/IRS spectral map of the northwest photon dominated region (PDR) in NGC 7023 is analyzed. Here, results from fitting the 5.2-14.5 µm spectrum at each pixel using exclusively PAH spectra from the NASA Ames PAH IR Spectroscopic Database (www.astrochem.org/pahdb/) and observed PAH ban…
Searching for primordial localized features with CMB and LSS spectra
Hu, Bin; Torrado, Jesús
Inspired by the study of mild transient reductions in the speed of sound of the adiabatic mode during inflation, we search for a primordial localized feature imprinted in cosmic microwave background and large-scale structure formation observables. We find some common oscillatory patterns both in the Planck CMB temperature-temperature power spectru…
COSIMA calibration for the detection and characterization of the cometary solid organic matter
Briois, Christelle; Cottin, Hervé; Fray, Nicolas +4 more
On the orbiter of the Rosetta spacecraft, the Cometary Secondary Ion Mass Analyser (COSIMA) will provide new in situ insights about the chemical composition of cometary grains all along 67P/Churyumov-Gerasimenko (67P/CG) journey until the end of December 2015 nominally. The aim of this paper is to present the pre-calibration which has already been…
Coronal Pseudo-Streamer and Bipolar Streamer Observed by SOHO/UVCS in March 2008
Riley, P.; Abbo, L.; Wang, Y. -M. +1 more
The past solar minimum is characterized by several peculiar aspects and by a complex magnetic topology with two different types of coronal streamers: pseudo-streamers and bipolar streamers. Pseudo-streamers or unipolar streamer are coronal structures that separate coronal holes of the same polarity, without a current sheet in the outer corona; unl…
The shape of the Venusian bow shock at solar minimum and maximum: Revisit based on VEX observations
Zhang, Tielong; Wang, Shui; Huang, Can +5 more
Several factors control the bow shock position at Venus, including short-term period responses (solar wind dynamic pressure) and long-term period variations (solar activity). Based on Venus Express (VEX) observations, we revisit the influence of solar activity on the Venusian bow shock location, by accurately determining not only the shock termina…