Search Publications
The Dual Role of Starbursts and Active Galactic Nuclei in Driving Extreme Molecular Outflows
Bizzocchi, Luca; González-Alfonso, Eduardo; Darling, Jeremy +7 more
We report molecular gas observations of IRAS 20100-4156 and IRAS 03158+4227, two local ultraluminous infrared galaxies (ULIRGs) hosting some of the fastest and most massive molecular outflows known. Using Atacama Large Millimeter Array and Plateau de Bure Interferometer observations, we spatially resolve the CO (1-0) emission from the outflowing m…
On the Rate and on the Gravitational Wave Emission of Short and Long GRBs
Rodriguez, J.; Wang, Y.; Barres de Almeida, U. +13 more
On the ground of the large number of gamma-ray bursts (GRBs) detected with cosmological redshift, we classified GRBs in seven subclasses, all with binary progenitors which emit gravitational waves (GWs). Each binary is composed of combinations of carbon-oxygen cores (COcore), neutron stars (NSs), black holes (BHs), and white dwarfs (WDs…
RELICS: Strong Lensing Analysis of the Galaxy Clusters Abell S295, Abell 697, MACS J0025.4-1222, and MACS J0159.8-0849
Ouchi, Masami; Mahler, Guillaume; Bradač, Maruša +37 more
We present a strong lensing analysis of four massive galaxy clusters imaged with the Hubble Space Telescope in the Reionization Lensing Cluster Survey. We use a light-traces-mass technique to uncover sets of multiple images and constrain the mass distribution of the clusters. These mass models are the first published for Abell S295 and MACS J0159.…
On the Dynamic Nature of a Quiescent Prominence Observed by IRIS and MSDP Spectrographs
Schmieder, Brigitte; Chen, Yao; Labrosse, Nicolas +4 more
Quiescent solar prominences are generally considered to have a stable large-scale structure. However, they consist of multiple small-scale structures that are often significantly dynamic. To understand the nature of prominence plasma dynamics we use the high spatial, temporal, and spectral resolution observations obtained by Interface Region Imagi…
The Temporal Development of Dust Formation and Destruction in Nova Sagittarii 2015#2 (V5668 SGR): A Panchromatic Study
Krautter, Joachim; Gehrz, R. D.; Shore, S. N. +15 more
We present 5-28 µm SOFIA FORECAST spectroscopy complemented by panchromatic X-ray through infrared observations of the CO nova V5668 Sgr documenting the formation and destruction of dust during ∼500 days following outburst. Dust condensation commenced by 82 days after outburst at a temperature of ∼1090 K. The condensation temperature indicat…
Anomalies in Time Delays of Lensed Gravitational Waves and Dark Matter Substructures
Ding, Xuheng; Biesiada, Marek; Zhu, Zong-Hong +2 more
Cold dark matter scenarios of hierarchical large-scale structure formation predict the existence of abundant subhalos around large galaxies. However, the number of observed dwarf galaxies is far from this theoretical prediction, suggesting that most of the subhalos could be dark or quite faint. Gravitational lensing is a powerful tool to probe the…
Five New Globular Clusters Discovered in the Galactic Bulge
Camargo, Denilso
This Letter reports the discovery of five new globular clusters (GCs) in the Galactic bulge (Camargo 1102, 1103, 1104, 1105, and 1106) using Wide-field Infrared Survey Explorer (WISE) images. Their natures are established by using 2MASS and Gaia second data release (DR2) photometry. The new findings are old and metal-poor GCs located less than 4 k…
Chemical Inhomogeneities in the Pleiades: Signatures of Rocky-forming Material in Stellar Atmospheres
Casey, Andrew R.; Meléndez, Jorge; Spina, Lorenzo +2 more
The aim of Galactic archaeology is to recover the history of our Galaxy through the information encoded in stars. An unprobed assumption of this field is that the chemical composition of a star is an immutable marker of the gas from which it formed. It is vital to test this assumption on open clusters, a group of stars formed from the same gas. Pr…
The Distance to and the Near-infrared Extinction of the Monoceros Supernova Remnant
Jiang, Biwei; Zhao, He; Li, Jun +2 more
Supernova remnants (SNRs) contain information on the influence of supernova explosions on dust properties. Based on the color indices from the Two Micron All Sky Survey and the stellar parameters from the SDSS-DR12/Apache Point Observatory Galactic Evolution Experiment and LAMOST-DR2/LAMOST Experiment for Galactic Understanding and Exploration spe…
Observations of the Kelvin-Helmholtz Instability Driven by Dynamic Motions in a Solar Prominence
Polito, Vanessa; Hillier, Andrew
Prominences are incredibly dynamic across the whole range of their observable spatial scales, with observations revealing gravity-driven fluid instabilities, waves, and turbulence. With all of these complex motions, it would be expected that instabilities driven by shear in the internal fluid motions would develop. However, evidence of these have …