Search Publications
The KMOS3D Survey: Rotating Compact Star-forming Galaxies and the Decomposition of Integrated Line Widths
Lutz, D.; Wuyts, S.; Förster Schreiber, N. M. +23 more
Using integral field spectroscopy, we investigate the kinematic properties of 35 massive centrally dense and compact star-forming galaxies (SFGs; {log}{\overline{M}}* [{M}⊙ ]=11.1, {log}({{{Σ }}}1{kpc}[{M}⊙ {kpc}}-2])> 9.5, {log}({M}* /{r}e1.5[{M}⊙
The Pan-STARRS1 Proper-motion Survey for Young Brown Dwarfs in Nearby Star-forming Regions. I. Taurus Discoveries and a Reddening-free Classification Method for Ultracool Dwarfs
Magnier, Eugene A.; Chambers, K. C.; Flewelling, H. +11 more
We are conducting a proper-motion survey for young brown dwarfs in the Taurus-Auriga molecular cloud based on the Pan-STARRS1 3π Survey. Our search uses multi-band photometry and astrometry to select candidates, and is wider (370 deg2) and deeper (down to ≈3 M Jup) than previous searches. We present here our search methods an…
The Shocking Power Sources of LINERs
Ho, Luis C.; Maoz, Dan; Shields, Joseph C. +5 more
The majority of low-ionization nuclear emission-line regions (LINERs) harbor supermassive black holes with very low accretion rates. However, the accretion flows do not produce enough ionizing photons to power the emission lines emitted on scales of ∼100 pc, and therefore additional sources of power are required. We present and analyze Hubble Spac…
Unambiguous Evidence of Filament Splitting-induced Partial Eruptions
Cheng, X.; Ding, M. D.; Kliem, B.
Coronal mass ejections are often considered to result from the full eruption of a magnetic flux rope (MFR). However, it is recognized that, in some events, the MFR may release only part of its flux, with the details of the implied splitting not completely established due to limitations in observations. Here, we investigate two partial eruption eve…
Revolutionizing Our Understanding of AGN Feedback and its Importance to Galaxy Evolution in the Era of the Next Generation Very Large Array
Prandoni, I.; Rujopakarn, W.; Murphy, E. J. +19 more
Energetic feedback by active galactic nuclei (AGNs) plays an important evolutionary role in the regulation of star formation on galactic scales. However, the effects of this feedback as a function of redshift and galaxy properties such as mass, environment, and cold gas content remain poorly understood. The broad frequency coverage (1 to 116 GHz),…
Probing the Puzzle of Behind-the-limb γ-Ray Flares: Data-driven Simulations of Magnetic Connectivity and CME-driven Shock Evolution
Liu, Wei; Li, Gang; Jin, Meng +8 more
Recent detections of high-energy γ-rays from behind-the-limb (BTL) solar flares by the Fermi Gamma-ray Space Telescope pose a puzzle and challenge on the particle acceleration and transport mechanisms. In such events, the γ-ray emission region is located away from the BTL flare site by up to tens of degrees in heliographic longitude. It is thus hy…
First Observation of the Submillimeter Polarization Spectrum in a Translucent Molecular Cloud
Ward-Thompson, Derek; Fissel, Laura M.; Nakamura, Fumitaka +27 more
Polarized emission from aligned dust is a crucial tool for studies of magnetism in the ISM, but a troublesome contaminant for studies of cosmic microwave background polarization. In each case, an understanding of the significance of the polarization signal requires well-calibrated physical models of dust grains. Despite decades of progress in theo…
Interpretation of the Phase Functions Measured by the OSIRIS Instrument for Comet 67P/Churyumov-Gerasimenko
Muinonen, Karri; Agarwal, Jessica; Penttilä, Antti +2 more
We show that the scattering phase functions of the coma and the nucleus of the comet 67P/Churyumov-Gerasimenko measured by the Rosetta/Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) instrument can be reproduced by a particle model involving clustered, densely packed submicrometer-sized grains composed of organic material and l…
Dependence of Coronal Mass Ejection Properties on Their Solar Source Active Region Characteristics and Associated Flare Reconnection Flux
Gopalswamy, Nat; Nandy, Dibyendu; Srivastava, Nandita +2 more
The near-Sun kinematics of coronal mass ejections (CMEs) determine the severity and arrival time of associated geomagnetic storms. We investigate the relationship between the deprojected speed and kinetic energy of CMEs and magnetic measures of their solar sources, reconnection flux of associated eruptive events, and intrinsic flux-rope characteri…
The Morphological Evolution, AGN Fractions, Dust Content, Environments, and Downsizing of Massive Green Valley Galaxies at 0.5 < z < 2.5 in 3D-HST/CANDELS
Fang, Guanwen; Gu, Yizhou; Yuan, Qirong +2 more
To explore the evolutionary connection among red, green, and blue galaxy populations, based on a sample of massive ({M}* > {10}10 {M}⊙ ) galaxies at 0.5 < z < 2.5 in five 3D-HST/CANDELS fields, we investigate the dust content, morphologies, structures, active galactic nucleus (AGN) fractions, and environme…