Search Publications
CANDELS Visual Classifications: Scheme, Data Release, and First Results
Bell, Eric F.; Castellano, Marco; Kartaltepe, Jeyhan S. +49 more
We have undertaken an ambitious program to visually classify all galaxies in the five CANDELS fields down to H < 24.5 involving the dedicated efforts of over 65 individual classifiers. Once completed, we expect to have detailed morphological classifications for over 50,000 galaxies spanning 0 < z < 4 over all the fields, with classificati…
Galaxy Mergers Drive Shocks: An Integral Field Study of GOALS Galaxies
Kewley, L. J.; Dopita, M. A.; Rich, J. A.
We present an integral field spectroscopic study of radiative shocks in 27 nearby ultraluminous and luminous infrared galaxies (U/LIRGs) from the Great Observatory All-sky LIRG Survey, a subset of the Revised Bright Galaxy Sample. Our analysis of the resolved spectroscopic data from the Wide Field Spectrograph focuses on determining the detailed p…
Interstellar Neutral Helium in the Heliosphere from IBEX Observations. III. Mach Number of the Flow, Velocity Vector, and Temperature from the First Six Years of Measurements
Wurz, P.; McComas, D. J.; Fuselier, S. A. +10 more
We analyzed observations of interstellar neutral helium (ISN He) obtained from the Interstellar Boundary Explorer (IBEX) satellite during its first six years of operation. We used a refined version of the ISN He simulation model, presented in the companion paper by Sokół et al. (2015b), along with a sophisticated data correlation and uncertainty s…
The Formation and Magnetic Structures of Active-region Filaments Observed by NVST, SDO, and Hinode
Yan, X. L.; Xue, Z. K.; Wang, J. C. +4 more
To better understand the properties of solar active-region filaments, we present a detailed study on the formation and magnetic structures of two active-region filaments in active region NOAA 11884 during a period of four days. It is found that the shearing motion of the opposite magnetic polarities and the rotation of the small sunspots with nega…
Localization of Gamma-Ray Bursts Using the Fermi Gamma-Ray Burst Monitor
Burgess, J. M.; Greiner, J.; McGlynn, S. +25 more
The Fermi Gamma-ray Burst Monitor (GBM) has detected over 1400 gamma-ray bursts (GRBs) since it began science operations in 2008 July. We use a subset of over 300 GRBs localized by instruments such as Swift, the Fermi Large Area Telescope, INTEGRAL, and MAXI, or through triangulations from the InterPlanetary Network, to analyze the accuracy of GBM…
OGLE-III Microlensing Events and the Structure of the Galactic Bulge
Udalski, Andrzej; Szymański, Michał K.; Skowron, Jan +9 more
We present and study the largest and most comprehensive catalog of microlensing events ever constructed. The sample of standard microlensing events comprises 3718 unique events from 2001-2009 with 1409 events that had not been detected before in real-time by the Early Warning System of the Optical Gravitational Lensing Experiment. The search pipel…
Ultradeep IRAC Imaging Over the HUDF and GOODS-South: Survey Design and Imaging Data Release
Trenti, M.; Oesch, P. A.; Carollo, C. M. +11 more
The IRAC ultradeep field and IRAC Legacy over GOODS programs are two ultradeep imaging surveys at 3.6 and 4.5 µm with the Spitzer Infrared Array Camera (IRAC). The primary aim is to directly detect the infrared light of reionization epoch galaxies at z > 7 and to constrain their stellar populations. The observations cover the Hubble Ultra…
XMM-Newton Survey of Local O VII Absorption Lines in the Spectra of Active Galactic Nuclei
Fang, Taotao; Bullock, James; Buote, David +1 more
Highly ionized, z = 0 metal absorption lines detected in the X-ray spectra of background active galactic nuclei (AGNs) provide an effective method to probe the hot (T ∼ 106 K) gas and its metal content in and around the Milky Way. We present an all-sky survey of the {{K}α } transition of the local O vii absorption lines obtai…
Interstellar Flow and Temperature Determination with IBEX: Robustness and Sensitivity to Systematic Effects
Wurz, P.; McComas, D. J.; Fuselier, S. A. +11 more
The Interstellar Boundary Explorer (IBEX) samples the interstellar neutral (ISN) gas flow of several species every year from December through late March when the Earth moves into the incoming flow. The first quantitative analyses of these data resulted in a narrow tube in four-dimensional interstellar parameter space, which couples speed, flow lat…
The ACS Fornax Cluster Survey. XI. Catalog of Globular Cluster Candidates
Jordán, Andrés; Eyheramendy, Susana; Côté, Patrick +3 more
We present catalogs of globular cluster (GC) candidates for 43 galaxies from the ACS Fornax Cluster survey, a program designed to carry out imaging of early-type members of the Fornax cluster using the Advanded Camera for Surveys (ACS) on board the Hubble Space Telescope. The procedure to select bona fide GC candidates from the full list of detect…