Abstract: Near-nadir observations of the Libya 4 site from the S-NPP VIIRS Day-Night Band (DNB) and…
Author: New NASA STI
NICER Detection of Strong Photospheric Expansion during a Thermonuclear X-Ray Burst from 4U 1820–30
Abstract: The Neutron Star Interior Composition Explorer (NICER) on the International Space Station (ISS) observed strong…
NICER Discovers mHz Oscillations in the “Clocked” Burster GS 1826-238
Abstract: We report the discovery with the Neutron Star Interior Composition Explorer (NICER) of mHz X-ray…
Multi-messenger Astrophysics with Pulsar Timing Arrays: Astro2020 Science White Paper
Abstract: Pulsar timing arrays (PTAs) are on the verge of detecting low-frequency gravitational waves (GWs)from supermassive…
Cosmic Pathways for Compact Groups in the Milli-Millennium Simulation
Abstract: We detected 10 compact galaxy groups (CGs) at z=0 in the semianalytic galaxy catalog of…
NuSTAR Detection of X-Rays Concurrent with Gamma-Rays in the Nova V5855 Sgr
Abstract: We report the first detection of hard (>10 keV) X-ray emission simultaneous with gamma-rays in…
The Segmented Aperture Interferometric Nulling Testbed (SAINT) III: Control Systems Analysis and Preliminary Results
Abstract: This work presents a detailed current performance analysis for the telescope, pointing, and coronagraph com-…
Polarimetry in X- and Gamma-Ray Astronomy: The Ultimate Dimension
Abstract: Polarization has been a powerful diagnostic tool in radio, microwave, and visible astronomy, providing details…
Operation of a H4RG-10 in the NASA Goddard Astrophyiscs Divison IR Detector Lab Testbed
Abstract: Future space and ground based missions in the near infrared are planning to or will…
A Dispersive Backend Design for the ‘Double-Fourier’ Interferometer BETTII
Abstract: BETTII (Balloon Experimental Twin Telescope for Infra-red Interferometry) is designed to provide high angular resolution…