Search Publications
The Solar Neighborhood XLIV: RECONS Discoveries within 10 parsecs
Henry, Todd J.; Winters, Jennifer G.; Jao, Wei-Chun +7 more
We describe the 44 systems discovered to be within 10 pc of the Sun by the RECONS team, primarily via the long-term astrometry program at the CTIO/SMARTS 0.9 m that began in 1999. The systems—including 41 with red dwarf primaries, 2 white dwarfs, and 1 brown dwarf—have trigonometric parallaxes greater than 100 mas, with errors of 0.4-2.4 mas in al…
A New Look at T Tauri Star Forbidden Lines: MHD-driven Winds from the Inner Disk
Fang, Min; Pascucci, Ilaria; Edwards, Suzan +6 more
Magnetohydrodynamic (MHD) and photoevaporative winds are thought to play an important role in the evolution and dispersal of planet-forming disks. We report the first high-resolution (Δv ∼ 6 km s-1) analysis of [S II] λ4068, [O I] λ5577, and [O I] λ6300 lines from a sample of 48 T Tauri stars. Following Simon et al. we decompose them in…
Circumnuclear Multiphase Gas in the Circinus Galaxy. II. The Molecular and Atomic Obscuring Structures Revealed with ALMA
Kohno, Kotaro; Wada, Keiichi; Izumi, Takuma +2 more
We used the Atacama Large Millimeter/Submillimeter Array (ALMA) to map the CO(3-2) and [C I](1-0) lines, as well as their underlying continuum emission, from the central ∼200 pc region of the Circinus galaxy that hosts the nearest type 2 Seyfert-class active galactic nucleus (AGN), with a spatial resolution of ∼6-15 pc. The lines and continuum-emi…
Analysis of the Herschel DEBRIS Sun-like star sample
Duchêne, G.; Lestrade, J. -F.; Wyatt, M. C. +4 more
This paper presents a study of circumstellar debris around Sun-like stars using data from the Herschel DEBRIS Key Programme. DEBRIS is an unbiased survey comprising the nearest ∼90 stars of each spectral type A-M. Analysis of the 275 F-K stars shows that excess emission from a debris disc was detected around 47 stars, giving a detection rate of 17…
NOMAD, an Integrated Suite of Three Spectrometers for the ExoMars Trace Gas Mission: Technical Description, Science Objectives and Expected Performance
Aoki, S.; Vandaele, A. C.; Daerden, F. +50 more
The NOMAD ("Nadir and Occultation for MArs Discovery") spectrometer suite on board the ExoMars Trace Gas Orbiter (TGO) has been designed to investigate the composition of Mars' atmosphere, with a particular focus on trace gases, clouds and dust. The detection sensitivity for trace gases is considerably improved compared to previous Mars missions, …
Cometary Dust
Langevin, Yves; Thomas, Nicolas; Agarwal, Jessica +11 more
This review presents our understanding of cometary dust at the end of 2017. For decades, insight about the dust ejected by nuclei of comets had stemmed from remote observations from Earth or Earth's orbit, and from flybys, including the samples of dust returned to Earth for laboratory studies by the Stardust return capsule. The long-duration Roset…
Demographics of Star-forming Galaxies since z ∼ 2.5. I. The UVJ Diagram in CANDELS
Finkelstein, Steven L.; Barro, Guillermo; Pérez-González, Pablo G. +41 more
This is the first in a series of papers examining the demographics of star-forming (SF) galaxies at 0.2 < z < 2.5 in CANDELS. We study 9100 galaxies from GOODS-S and UDS, having published values of redshifts, masses, star formation rates (SFRs), and dust attenuation (A V ) derived from UV-optical spectral energy distribution fitt…
HELP: modelling the spectral energy distributions of Herschel detected galaxies in the ELAIS N1 field
Shirley, R.; Buat, V.; Małek, K. +10 more
Aims: The Herschel Extragalactic Legacy Project (HELP) focuses on the data from ESA's Herschel mission, which covered over 1300 deg2 and is preparing to publish a multi-wavelength catalogue of millions of objects. Our main goal is to find the best approach to simultaneously fitting spectral energy distributions (SEDs) of millions o…
An Enigmatic Population of Luminous Globular Clusters in a Galaxy Lacking Dark Matter
Mowla, Lamiya; van Dokkum, Pieter; Romanowsky, Aaron J. +10 more
We recently found an ultra diffuse galaxy (UDG) with a half-light radius of R e = 2.2 kpc and little or no dark matter. The total mass of NGC1052-DF2 was measured from the radial velocities of bright compact objects that are associated with the galaxy. Here, we analyze these objects using a combination of Hubble Space Telescope (HST) …
The State-of-Play of Anomalous Microwave Emission (AME) research
Leahy, J. P.; Paladini, R.; Poidevin, F. +30 more
Anomalous Microwave Emission (AME) is a component of diffuse Galactic radiation observed at frequencies in the range ≈ 10-60 GHz. AME was first detected in 1996 and recognised as an additional component of emission in 1997. Since then, AME has been observed by a range of experiments and in a variety of environments. AME is spatially correlated wit…