Search Publications
The Vertical Motion History of Disk Stars throughout the Galaxy
Ting, Yuan-Sen; Rix, Hans-Walter
It has long been known that the vertical motions of Galactic disk stars increase with stellar age, commonly interpreted as vertical heating through orbit scattering. Here we map the vertical actions of disk stars as a function of age (τ ≤slant 8 {Gyr}) and across a large range of Galactocentric radii, {\overline{R}}GC}, drawing on APOGE…
A Multi-band Catalog of 10978 Star Clusters, Associations, and Candidates in the Milky Way
Bica, Eduardo; Pavani, Daniela B.; Bonatto, Charles J. +1 more
We present a catalog of Galactic star clusters, associations and candidates with 10978 entries. This multi-band catalog was constructed over 20 years, starting with visual inspections on the Digital Sky Survey and incremented with the 2MASS, WISE, VVV, Spitzer, and Herschel surveys. Large and small catalogs, as well as papers on individual objects…
An Ideal Testbed for Planet-Disk Interaction: Two Giant Protoplanets in Resonance Shaping the PDS 70 Protoplanetary Disk
Baruteau, Clément; Bae, Jaehan; Teague, Richard +7 more
While numerical simulations have been playing a key role in the studies of planet-disk interaction, testing numerical results against observations has been limited so far. With the two directly imaged protoplanets embedded in its circumstellar disk, PDS 70 offers an ideal testbed for planet-disk interaction studies. Using two-dimensional hydrodyna…
Enhanced cluster lensing models with measured galaxy kinematics
Rodighiero, G.; Grillo, C.; Rosati, P. +10 more
We present an improved determination of the total mass distribution of three massive clusters from the Cluster Lensing and Supernova Survey with Hubble and Hubble Frontier Fields, MACS J1206.2-0847 (z = 0.44), MACS J0416.1-2403 (z = 0.40), Abell S1063 (z = 0.35). We specifically reconstructed the sub-halo mass component with robust stellar kinemat…
Evidence for a Circumplanetary Disk around Protoplanet PDS 70 b
Pinte, Christophe; Casassus, Simon; Girard, Julien +5 more
We present the first observational evidence for a circumplanetary disk (CPD) around the protoplanet PDS 70 b, based on a new spectrum in the K-band acquired with Very Large Telescope/SINFONI. We tested three hypotheses to explain the spectrum: atmospheric emission from the planet with either (1) a single value of extinction, (2) a variable extinct…
Newly Discovered Bright z ∼ 9-10 Galaxies and Improved Constraints on Their Prevalence Using the Full CANDELS Area
Oesch, P. A.; Bouwens, R. J.; Illingworth, G. D. +5 more
We report the results of an expanded search for z ∼ 9-10 candidates over the ∼883 arcmin2 CANDELS+ERS fields. This study adds 147 arcmin2 to the search area we consider over the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey (CANDELS) COSMOS, UDS, and EGS fields, while expanding our selection to include source…
Generic Magnetic Field Intensity Profiles of Interplanetary Coronal Mass Ejections at Mercury, Venus, and Earth From Superposed Epoch Analyses
Lugaz, Noé; Möstl, Christian; Janvier, Miho +8 more
We study interplanetary coronal mass ejections (ICMEs) measured by probes at different heliocentric distances (0.3-1 AU) to investigate the propagation of ICMEs in the inner heliosphere and determine how the generic features of ICMEs change with heliospheric distance. Using data from the MErcury Surface, Space ENvironment, GEochemistry, and Rangin…
The Asteroseismic Target List for Solar-like Oscillators Observed in 2 minute Cadence with the Transiting Exoplanet Survey Satellite
Chaplin, William J.; Davies, Guy R.; Latham, David W. +21 more
We present the target list of solar-type stars to be observed in short-cadence (2 minute) for asteroseismology by the NASA Transiting Exoplanet Survey Satellite (TESS) during its 2 year nominal survey mission. The solar-like Asteroseismic Target List (ATL) is comprised of bright, cool main-sequence and subgiant stars and forms part of the larger t…
Cold dust and stellar emissions in dust-rich galaxies observed with ALMA: a challenge for SED-fitting techniques
Ciesla, L.; Buat, V.; Boquien, M. +2 more
Context. Over the past few years the Atacama Large Millimeter Array (ALMA) has detected dust-rich galaxies whose cold dust emission is spatially disconnected from the ultraviolet (UV) rest-frame emission. This represents a challenge for modeling their spectral energy distributions (SED) with codes based on an energy budget between the stellar and …
Diverse Variability of O and B Stars Revealed from 2-minute Cadence Light Curves in Sectors 1 and 2 of the TESS Mission: Selection of an Asteroseismic Sample
Neiner, Coralie; Buzasi, Derek; Bowman, Dominic M. +18 more
Uncertainties in stellar structure and evolution theory are largest for stars undergoing core convection on the main sequence. A powerful way to calibrate the free parameters used in the theory of stellar interiors is asteroseismology, which provides direct measurements of angular momentum and element transport. We report the detection and classif…