Search Publications
V1094 Scorpii: A rare giant multi-ringed disk around a T Tauri star
Maud, L. T.; Testi, L.; Tazzari, M. +11 more
Context. A wide variety of ring-like dust structures have been detected in protoplanetary disks, but their origin and frequency are still unclear.
Aims: We aim to characterize the structure of an extended, multi-ringed disk discovered serendipitously in the Atacama Large Millimeter/submillimeter Array (ALMA) Lupus disk survey and put it in th…
Morphology and Kinematics of Filaments in the Serpens and Perseus Molecular Clouds
Mundy, Lee G.; Storm, Shaye; Dhabal, Arnab +2 more
We present H13CO+ (J = 1-0) and HNC (J = 1-0) maps of regions in Serpens South, Serpens Main, and NGC 1333 containing filaments. We also observe the Serpens regions using H13CN (J = 1-0). These dense gas tracer molecular line observations carried out with CARMA have an angular resolution of ∼7″, a spectral resoluti…
Stellar Mass Distribution and Star Formation History of the Galactic Disk Revealed by Mono-age Stellar Populations from LAMOST
Shi, Jianrong; Wu, Yaqian; Xiang, Maosheng +9 more
We present a detailed determination and analysis of 3D stellar mass distribution of the Galactic disk for mono-age populations using a sample of 0.93 million main-sequence turnoff and subgiant stars from the LAMOST Galactic Surveys. Our results show the following. (1) All stellar populations younger than 10 Gyr exhibit strong disk flaring, which i…
First Sunyaev-Zel'dovich mapping with the NIKA2 camera: Implication of cluster substructures for the pressure profile and mass estimate
Aussel, H.; Adam, R.; Arnaud, M. +37 more
The complete characterization of the pressure profile of high-redshift galaxy clusters, from their core to their outskirts, is a major issue for the study of the formation of large-scale structures. It is essential to constrain a potential redshift evolution of both the slope and scatter of the mass-observable scaling relations used in cosmology s…
Spectroscopic Investigation of a Reionized Galaxy Overdensity at z = 7
Maiolino, R.; Dickinson, M.; Giavalisco, M. +17 more
We present deep spectroscopic follow-up observations of the Bremer Deep Field (BDF), where the two z ∼ 7 bright Lyα emitters (LAE) BDF521 and BDF3299 were previously discovered by Vanzella et al. and where a factor of ∼3-4 overdensity of faint LBGs has been found by Castellano et al. We confirm a new bright Lyα emitter, BDF2195, at the same redshi…
The GEM-Mars general circulation model for Mars: Description and evaluation
Daerden, F.; Neary, L.
GEM-Mars is a gridpoint-based three-dimensional general circulation model (GCM) of the Mars atmosphere extending from the surface to approximately 150 km based on the GEM (Global Environmental Multiscale) model, part of the operational weather forecasting and data assimilation system for Canada. After the initial modification for Mars, the model h…
Detecting the Yarkovsky effect among near-Earth asteroids from astrometric data
Carry, B.; Spoto, F.; Faggioli, L. +3 more
We present an updated set of near-Earth asteroids with a Yarkovsky-related semimajor axis drift detected from the orbital fit to the astrometry. We find 87 reliable detections after filtering for the signal-to-noise ratio of the Yarkovsky drift estimate and making sure the estimate is compatible with the physical properties of the analysed object.…
The Profile of the Galactic Halo from Pan-STARRS1 3π RR Lyrae
Rix, Hans-Walter; Chambers, Ken; Magnier, Eugene +11 more
We characterize the spatial density of the Pan-STARRS1 (PS1) sample of Rrab stars to study the properties of the old Galactic stellar halo. This sample, containing 44,403 sources, spans galactocentric radii of 0.55 kpc ≤ R gc ≤ 141 kpc with a distance precision of 3% and thus is able to trace the halo out to larger distances than most p…
Incompressive Energy Transfer in the Earth’s Magnetosheath: Magnetospheric Multiscale Observations
Russell, C. T.; Torbert, R. B.; Matthaeus, W. H. +14 more
Using observational data from the Magnetospheric Multiscale mission in the Earth’s magnetosheath, we estimate the energy cascade rate at three ranges of length scale, employing a single data interval, using different techniques within the framework of incompressible magnetohydrodynamic (MHD) turbulence. At the energy-containing scale, the energy b…
Stellar population of the superbubble N 206 in the LMC. II. Parameters of the OB and WR stars, and the total massive star feedback
Hamann, W. -R.; Gallagher, J. S.; Oskinova, L. M. +5 more
Context. Clusters or associations of early-type stars are often associated with a "superbubble" of hot gas. The formation of such superbubbles is caused by the feedback from massive stars. The complex N 206 in the Large Magellanic Cloud (LMC) exhibits a superbubble and a rich massive star population.
Aims: Our goal is to perform quantitative …