Search Publications
ZFIRE: Galaxy Cluster Kinematics, H alpha Star Formation Rates, and Gas Phase Metallicities of XMM-LSS J02182-05102 at zcl = 1.6232
Kewley, Lisa J.; Saintonge, Amélie; Kacprzak, Glenn G. +11 more
We spectroscopically survey the galaxy cluster XMM-LSS J02182-05102 (hereafter IRC 0218) using LRIS (optical) and MOSFIRE (near-infrared) on Keck I as part of the ZFIRE survey. IRC 0218 has a narrow redshift range of 1.612 \lt {z}{spec} \lt 1.635 defined by 33 members of which 20 are at R{}{proj} \lt 1 Mpc. The cluster redshi…
The Influence of Supernova Remnants on the Interstellar Medium in the Large Magellanic Cloud Seen at 20-600 µm Wavelengths
Temim, Tea; Okumura, K.; Bot, Caroline +20 more
We present the analysis of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) and their influence on the environment at far-infrared (FIR) and submillimeter wavelengths. We use new observations obtained with the Herschel Space Observatory and archival data obtained with the Spitzer Space Telescope, to make the first FIR atlas of these o…
The Complex Gas Kinematics in the Nucleus of the Seyfert 2 Galaxy NGC 1386: Rotation, Outflows, and Inflows
Schnorr-Müller, A.; Robinson, A.; Nagar, N. M. +6 more
We present optical integral field spectroscopy of the circum-nuclear gas of the Seyfert 2 galaxy NGC 1386. The data cover the central 7″ × 9″ (530 × 680 pc) at a spatial resolution of 0.″ 9 (68 pc), and the spectral range 5700-7000 Å at a resolution of 66 km s-1. The line emission is dominated by a bright central component, with two lob…
Joint High Temperature Observation of a Small C6.5 Solar Flare With Iris/Eis/Aia
Mason, H. E.; Golub, L.; Del Zanna, G. +2 more
We present the observation of a C6.5 class flare on 2014 February 3, obtained with the Interface Region Imaging Spectrograph (IRIS) and the EUV Imaging Spectrometer (EIS) on board HINODE. We follow the details of the impulsive phase with IRIS and the gradual decay phase with both IRIS and EIS. The IRIS Slit-Jaw Imager and Atmospheric Imaging Assem…
Imaging and Spectroscopic Diagnostics on the Formation of Two Magnetic Flux Ropes Revealed by SDO/AIA and IRIS
Cheng, X.; Ding, M. D.; Fang, C.
Helical magnetic flux rope (MFR) is a fundamental structure of coronal mass ejections (CMEs) and has been discovered recently to exist as a sigmoidal channel structure prior to its eruption in the EUV high-temperature passbands of the Atmospheric Imaging Assembly (AIA). However, when and where the MFR is built up are still elusive. In this paper, …
Nature of the MHD and Kinetic Scale Turbulence in the Magnetosheath of Saturn: Cassini Observations
Dougherty, M. K.; Sahraoui, F.; Masters, A. +5 more
Low-frequency turbulence in Saturn’s magnetosheath is investigated using in situ measurements of the Cassini spacecraft. Focus is put on the magnetic energy spectra computed in the frequency range of ∼[10-4, 1]Hz. A set of 42 time intervals in the magnetosheath were analyzed, and three main results that contrast with known features of s…
Giant Molecular Clouds in the Early-type Galaxy NGC 4526
Rosolowsky, Erik; Sarzi, Marc; Cappellari, Michele +4 more
We present a high spatial resolution (≈20 pc) of 12CO(2 -1) observations of the lenticular galaxy NGC 4526. We identify 103 resolved giant molecular clouds (GMCs) and measure their properties: size R, velocity dispersion σv, and luminosity L. This is the first GMC catalog of an early-type galaxy. We find that the GMC populati…
NuSTAR and Suzaku X-ray Spectroscopy of NGC 4151: Evidence for Reflection from the Inner Accretion Disk
Harrison, F. A.; Stern, D.; Fabian, A. C. +19 more
We present X-ray timing and spectral analyses of simultaneous 150 ks Nuclear Spectroscopic Telescope Array (NuSTAR) and Suzaku X-ray observations of the Seyfert 1.5 galaxy NGC 4151. We disentangle the continuum emission, absorption, and reflection properties of the active galactic nucleus (AGN) by applying inner accretion disk reflection and absor…
Nested Shells Reveal the Rejuvenation of the Orion-Eridanus Superbubble
Brown, Anthony G. A.; Bally, John; Ochsendorf, Bram B. +1 more
The Orion-Eridanus superbubble is the prototypical superbubble owing to its proximity and evolutionary state. Here we provide a synthesis of recent observational data from WISE and Planck with archival data, allowing us to draw a new and more complete picture on the history and evolution of the Orion-Eridanus region. We discuss the general morphol…
Cosmic Evolution of Black Holes and Spheroids. V. The Relation between Black Hole Mass and Host Galaxy Luminosity for a Sample of 79 Active Galaxies
Treu, Tommaso; Auger, Matthew W.; Malkan, Matthew A. +3 more
We investigate the cosmic evolution of the black hole (BH) mass-bulge luminosity relation using a sample of 52 active galaxies at z ~ 0.36 and z ~ 0.57 in the BH mass range of 107.4-109.1 M ⊙. By consistently applying multicomponent spectral and structural decomposition to high-quality Keck spectra and high-resolut…