Search Publications
Unbiased Large Spectroscopic Surveys of Galaxies Selected by SPICA Using Dust Bands
Pozzi, F.; Scott, D.; Wang, L. +27 more
The mid-infrared range contains many spectral features associated with large molecules and dust grains such as polycyclic aromatic hydrocarbons and silicates. These are usually very strong compared to fine-structure gas lines, and thus valuable in studying the spectral properties of faint distant galaxies. In this paper, we evaluate the capability…
Morphology of Ganymede's FUV auroral ovals
Saur, Joachim; Roth, Lorenz; Feldman, Paul D. +4 more
We study the morphology of Ganymede's FUV aurora by analyzing spectral images obtained over the past two decades by the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. The observations cover the eastern and western elongation as well as various magnetic latitudes of Ganymede within the Jovian plasma sheet. We find both as…
Rosetta Lander - Philae: Operations on comet 67P/Churyumov-Gerasimenko, analysis of wake-up activities and final state
Mottola, Stefano; Scholten, Frank; Kührt, Ekkehard +19 more
The Lander Philae, part of the ESA Rosetta mission successfully landed on comet 67P/Churyumov- Gerasimenko on November 12th, 2014. After several (unplanned) bounces it performed a First Scientific Sequence (FSS), based on the energy stored in its on board batteries. All ten instruments of the payload aboard Philae have been operated at least once.…
Binary Star Orbits. V. The Nearby White Dwarf/Red Dwarf Pair 40 Eri BC
Mason, Brian D.; Hartkopf, William I.; Miles, Korie N.
A new relative orbit solution with new dynamical masses is determined for the nearby white dwarf-red dwarf pair 40 Eri BC. The period is 230.29 ± 0.68 years. It is predicted to close slowly over the next half-century, getting as close as 1"32 in early 2066. We determine masses of 0.573 ± 0.018 M⊙ for the white dwarf and 0.2036 ± 0.0064 …
A Comparison of the Most Massive Quiescent Galaxies from z ∼ 3 to the Present: Slow Evolution in Size, and spheroid-dominated
Patel, Shannon G.; Quadri, Ryan F.; Williams, Rik J. +2 more
We use Hubble Space Telescope imaging to study the structural properties of 10 of the most massive (M≥slant {10}11.25 {M}⊙ ) quiescent galaxies (QGs) in the UKIDSS UDS at 2.5< z< 3.0. The low spatial density of these galaxies required targeted WFC3 H 160 imaging, as such systems are rare in existing surveys l…
A 3D model for carbon monoxide molecular line emission as a potential cosmic microwave background polarization contaminant
Baccigalupi, C.; Fabbian, G.; Puglisi, G.
We present a model for simulating carbon monoxide (CO) rotational line emission in molecular clouds, taking account of their 3D spatial distribution in galaxies with different geometrical properties. The model implemented is based on recent results in the literature and has been designed for performing Monte Carlo (MC) simulations of this emission…
Characterizing Solar Energetic Particle Event Profiles with Two-Parameter Fits
Kahler, Stephen W.; Ling, Alan G.
The intensity-time profiles of solar energetic (E >10 MeV) particle (SEP) events observed at 1 AU reflect a number of physical processes involving solar injection and interplanetary transport. In addition to energy spectral and composition studies, SEP intensity-time profiles are the basis for diagnostic timescales needed for describing and mod…
False outliers of the Ep,i - Eiso correlation?
Della Valle, M.; Götz, D.; Amati, L. +3 more
Context. In the context of an in-depth understanding of GRBs and their possible use in cosmology, some important correlations between the parameters that describe their emission have been discovered, among which the "Ep,i - Eiso" correlation is the most studied. Because of this, it is fundamental to shed light on the peculiar…
The SAMI Galaxy Survey: kinematics of dusty early-type galaxies
Groves, B. A.; Konstantopoulos, I. S.; Cortese, L. +19 more
Recently, large samples of visually classified early-type galaxies (ETGs) containing dust have been identified using space-based infrared observations with the Herschel Space Telescope. The presence of large quantities of dust in massive ETGs is peculiar as X-ray haloes of these galaxies are expected to destroy dust in ∼107 yr (or less)…
Impact of the latest measurement of Hubble constant on constraining inflation models
Zhang, Xin
We investigate how the constraint results of inflation models are affected by considering the latest local measurement of $H_0$ in the global fit. We use the observational data, including the Planck CMB full data, the BICEP2 and Keck Array CMB B-mode data, the BAO data, and the latest measurement of Hubble constant, to constrain the $\Lambda$CDM+$…