Search Publications
The CatWISE Preliminary Catalog: Motions from WISE and NEOWISE Data
Teplitz, Harry I.; Schlegel, David J.; Mobasher, Bahram +19 more
CatWISE is a program to catalog sources selected from combined WISE and NEOWISE all-sky survey data at 3.4 and 4.6 &mgrm (W1 and W2). The CatWISE Preliminary Catalog consists of 900,849,014 sources measured in data collected from 2010 to 2016. This data set represents four times as many exposures and spans over 10 times as large a time baselin…
Scaling K2. I. Revised Parameters for 222,088 K2 Stars and a K2 Planet Radius Valley at 1.9 R⊕
Schlieder, Joshua E.; Ciardi, David R.; Dressing, Courtney D. +3 more
Previous measurements of stellar properties for K2 stars in the Ecliptic Plane Input Catalog largely relied on photometry and proper motion measurements, with some added information from available spectra and parallaxes. Combining Gaia DR2 distances with spectroscopic measurements of effective temperatures, surface gravities, and metallicities fro…
The R-Process Alliance: Fourth Data Release from the Search for R-process-enhanced Stars in the Galactic Halo
Grebel, Eva K.; Drout, Maria R.; Steinmetz, Matthias +22 more
This compilation is the fourth data release from the R-Process Alliance (RPA) search for r-process-enhanced stars and the second release based on "snapshot" high-resolution (R ∼ 30,000) spectra collected with the du Pont 2.5 m Telescope. In this data release, we propose a new delineation between the r-I and r-II stellar classes at $[\mathrm{Eu}/\m…
Structure of Brightest Cluster Galaxies and Intracluster Light
Brosch, N.; Schmidt, M.; Bender, R. +6 more
Observations of 170 local (z ≲ 0.08) galaxy clusters in the northern hemisphere have been obtained with the Wendelstein Telescope Wide Field Imager (WWFI). We correct for systematic effects such as point-spread function broadening, foreground star contamination, relative bias offsets, and charge persistence. Background inhomogeneities induced by s…
The Separation Distribution of Ultrawide Binaries across Galactic Populations
Tian, Hai-Jun; Rix, Hans-Walter; Gould, Andrew +1 more
We present an extensive and pure sample of ultrawide binary stars with separations of 0.01 ≲ s/pc ≲ 1 in the solar neighborhood. Using data from Gaia DR2, we define kinematic subpopulations via the systems’ tangential velocities, I.e., disk-like (V ⊥,tot ≤ 40 km s-1), intermediate (V ⊥,tot = 40-85 km s-1…
Morpheus: A Deep Learning Framework for the Pixel-level Analysis of Astronomical Image Data
Hausen, Ryan; Robertson, Brant E.
We present Morpheus, a new model for generating pixel-level morphological classifications of astronomical sources. Morpheus leverages advances in deep learning to perform source detection, source segmentation, and morphological classification pixel-by-pixel via a semantic segmentation algorithm adopted from the field of computer vision. By utilizi…
Anticorrelation between the Bulk Speed and the Electron Temperature in the Pristine Solar Wind: First Results from the Parker Solar Probe and Comparison with Helios
Maksimovic, M.; Bale, S. D.; Štverák, Š. +25 more
We discuss the solar wind electron temperatures Te as measured in the nascent solar wind by Parker Solar Probe during its first perihelion pass. The measurements have been obtained by fitting the high-frequency part of quasi-thermal noise spectra recorded by the Radio Frequency Spectrometer. In addition we compare these measurements wit…
Strong Lens Models for 37 Clusters of Galaxies from the SDSS Giant Arcs Survey
Mahler, Guillaume; Rigby, Jane R.; Whitaker, Katherine E. +13 more
We present strong gravitational lensing models for 37 galaxy clusters from the Sloan Digital Sky Survey Giant Arcs Survey. We combine data from multi-band Hubble Space Telescope Wide Field Camera 3 (WFC3) imaging, with ground-based imaging and spectroscopy from Magellan, Gemini, Apache Point Observatory, and the Multiple Mirror Telescope, in order…
The SUPERWIDE Catalog: A Catalog of 99,203 Wide Binaries Found in Gaia and Supplemented by the SUPERBLINK High Proper Motion Catalog
Hartman, Zachary D.; Lépine, Sébastien
We present a catalog of 99,203 wide binary systems, initially identified as common proper motion (CPM) pairs from a subset of ∼5.2 million stars with proper motions µ > 40 mas yr-1, selected from Gaia data release 2 (DR2) and the SUPERBLINK high proper motion catalog. CPM pairs are found by searching for pairs of stars with ang…
Solar System Objects Observed with TESS—First Data Release: Bright Main-belt and Trojan Asteroids from the Southern Survey
Pál, András; Kalup, Csilla; Szakáts, Róbert +10 more
Compared with previous space-borne surveys, the Transiting Exoplanet Survey Satellite (TESS) provides a unique and new approach to observe solar system objects. While its primary mission avoids the vicinity of the ecliptic plane by approximately six degrees, the scale height of the solar system debris disk is large enough to place various small bo…