Search Publications
Missions
Journals
Publication Years
SN 2009ip at late times - an interacting transient at +2 years
Gilmore, Gerard; Fraser, Morgan; Elias-Rosa, Nancy +31 more
We present photometric and spectroscopic observations of the interacting transient SN 2009ip taken during the 2013 and 2014 observing seasons. We characterize the photometric evolution as a steady and smooth decline in all bands, with a decline rate that is slower than expected for a solely 56Co-powered supernova at late phases. No furt…
VIRTIS emissivity of Alpha Regio, Venus, with implications for tessera composition
Gilmore, Martha S.; Helbert, Jörn; Mueller, Nils
The composition of Venus tessera terrain is unknown. The Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) aboard Venus Express (VEx) collects data that yields the surface emissivity at ∼1 µm, which contains information convolving a number of surface properties, including composition. We examine the variation of emissivity in the vi…
[O I] 63 µm Jets in Class 0 Sources Detected By Herschel
Eislöffel, J.; Codella, C.; van Dishoeck, E. F. +9 more
We present Herschel PACS mapping observations of the [O i] 63 µm line toward protostellar outflows in the L1448, NGC 1333-IRAS4, HH 46, BHR 71, and VLA 1623 star-forming regions. We detect emission spatially resolved along the outflow direction, which can be associated with a low-excitation atomic jet. In the L1448-C, HH 46 IRS, and BHR 71 I…
Exceptional AGN-driven turbulence inhibits star formation in the 3C 326N radio galaxy
Boulanger, F.; Falgarone, E.; Combes, F. +4 more
We detect bright [Cii]λ158 µm line emission from the radio galaxy 3C 326N at z = 0.09, which shows no sign of ongoing or recent star formation (SFR< 0.07 M⊙ yr-1) despite having strong H2 line emission and a substantial amount of molecular gas (2 × 109 M⊙, inferred from the modeling o…
Chromospheric Evaporation in an X1.0 Flare on 2014 March 29 Observed with IRIS and EIS
Ding, M. D.; Li, Y.; Qiu, J. +1 more
Chromospheric evaporation refers to dynamic mass motions in flare loops as a result of rapid energy deposition in the chromosphere. These motions have been observed as blueshifts in X-ray and extreme-ultraviolet (EUV) spectral lines corresponding to upward motions at a few tens to a few hundreds of km s-1. Past spectroscopic observation…
CMB and BAO constraints for an induced gravity dark energy model with a quartic potential
Finelli, F.; Paoletti, D.; Ballardini, M. +1 more
We study the predictions for structure formation in an induced gravity dark energy model with a quartic potential. By developing a dedicated Einstein-Boltzmann code, we study self-consistently the dynamics of homogeneous cosmology and of linear perturbations without using any parametrization. By evolving linear perturbations with initial condition…
Spectral State Dependence of the 0.4-2 MeV Polarized Emission in Cygnus X-1 Seen with INTEGRAL/IBIS, and Links with the AMI Radio Data
Grinberg, Victoria; Pottschmidt, Katja; Wilms, Jörn +6 more
Polarization of the ≳ 400 keV hard tail of the microquasar Cygnus X-1 has been independently reported by INTEGRAL/Imager on Board the INTEGRAL Satellite (IBIS), and INTEGRAL/SPectrometer on INTEGRAL and interpreted as emission from a compact jet. These conclusions were, however, based on the accumulation of all INTEGRAL data regardless of the spec…
The IRAS PSC/FSC Combined Catalogue
Mickaelian, A. M.; Abrahamyan, H. V.; Knyazyan, A. V.
Optical identifications of a few thousands of IRAS sources showed that IRAS Point Source and IRAS Faint Source catalogues (PSC and FSC, respectively) contain many quasars and active galactic nuclei, late-type stars, planetary nebulae, variables, etc. To increase the efficiency of using IRAS PSC and FSC, which contain a lot of common sources, one n…
Cosmography of OB stars in the solar neighbourhood
Bouy, H.; Alves, J.
We construct a 3D map of the spatial density of OB stars within 500 pc from the Sun using the Hipparcos catalogue and find three large-scale stream-like structures that allow a new view on the solar neighbourhood. The spatial coherence of these blue streams and the monotonic age sequence over hundreds of parsecs suggest that they are made of young…
The host galaxies of X-ray selected active galactic nuclei to z = 2.5: Structure, star formation, and their relationships from CANDELS and Herschel/PACS
Berta, S.; Magnelli, B.; Lutz, D. +60 more
We study the relationship between the structure and star formation rate (SFR) of X-ray selected low and moderate luminosity active galactic nuclei (AGNs) in the two Chandra Deep Fields, using Hubble Space Telescope imaging from the Cosmic Assembly Near Infrared Extragalactic Legacy Survey (CANDELS) and deep far-infrared maps from the PEP+GOODS-Her…