Results 121 to 130 of about 28,214 (291)

The Panchromatic Hubble Andromeda Treasury II. Tracing the Inner M31 Halo with Blue Horizontal Branch Stars

, 2012
We attempt to constrain the shape of M31's inner stellar halo by tracing the surface density of blue horizontal branch (BHB) stars at galactocentric distances ranging from 2 kpc to 35 kpc.
Anil C. Seth, Bailin, Barker, Bell, Bell, Belokurov, Benjamin F. Williams, Brown, Brown, Brown, Brown, Brown, Bullock, Bullock, Busso, Courteau, Dalcanton, Dorman, Dotter, Durrell, Durrell, Eric F. Bell, Gilbert, Gilbert, Gilbert, Gilbert, Guhathakurta, Ibata, Ibata, Ibata, Irwin, Jason S. Kalirai, Julianne J. Dalcanton, Jurić, Kalirai, Kalirai, Karoline M. Gilbert, Kazantzidis, Kinman, Leo Girardi, Majewski, Malin, Martínez-Delgado, Martínez-Delgado, Philip Rosenfield, Pietrukowicz, Puragra Guhathakurta, Radburn-Smith, Rich, Richardson, Rosenfield, Sarajedini, Sarajedini, Schlegel, Siegel, Stanek, Tanaka, Tod R. Lauer, Willman, Xue, Yanny, Zolotov   +61 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Inferring the Density and Membership of Stellar Streams with Flexible Models: The GD-1 Stream in Gaia Data Release 3

The Astrophysical Journal
Stellar streams provide one of the most promising avenues for constraining the global mass distribution of the Milky Way and the nature of dark matter (DM).
Kiyan Tavangar, Adrian M. Price-Whelan
doaj   +1 more source

Hercules and Wolf 630 Stellar Streams and Galactic Bar Kinematics

, 2016
We have identified the four most significant features in the UV velocity distribution of solar neighborhood stars: H1, H2 in the Hercules stream and W1, W2 in the Wolf 630 stream.
Bajkova, A. T., Bobylev, V. V.
core   +1 more source

Solvent‐Free Manufacturing of Multifunctional Gas Diffusion Electrode Architectures for Enhanced CO2 Conversion From Low‐Concentration Streams

Advanced Functional Materials, EarlyView.
A tandem gas diffusion electrode (GDE) leveraging hierarchically engineered microgranules enables efficient CO2 electroreduction under dilute CO2 conditions. A key innovation lies in the solvent‐free precision assembly of metal–organic‐frameworks, carbon nanotubes, and copper nanoparticles.
Kai‐Jen Wu, Carter Racine, Ahmed Badreldin, Shengyao Wang, Zongsu Han, Hong‐Cai Zhou, Ying Li, Heng Pan   +7 more
wiley   +1 more source

Clumpy galaxies at z~0.6: kinematics, stability, and comparison with analogs at other redshifts

, 2010
Distant clumpy galaxies are thought to be Jeans-unstable disks, and an important channel for the formation of local galaxies, as suggested by recent spatially-resolved kinematic observations of z~2 galaxies. I study the kinematics of clumpy galaxies at z~
Agertz, Amram, Amram, Barden, Barnes, Basu-Zych, Basu-Zych, Bournaud, Bournaud, Bournaud, Bournaud, Brooks, Bundy, Burkert, Casini, Casini, Casini, Ceverino, Conroy, Conselice, Conselice, Conselice, Covington, Cowie, Cox, Daddi, Dekel, Dekel, Delgado Serrano, Di, Di, Dijkstra, Duflot-Augarde, Dutton, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Epinat, Epinat, Erb, Forster Schreiber, Fuentes-Carrera, Förster Schreiber, Gallazzi, García-Lorenzo, Garland, Genel, Genzel, Goerdt, Goldreich, Governato, Griv, Hammer, Hammer, Hammer, Hammer, Hammer, Heckman, Homeier, Hoopes, Hopkins, Hopkins, Hopkins, Hopkins, Huertas-Company, Immeli, Immeli, Jog, Jog, Jog, Jorgenson, Kannappan, Kennicutt, Kereš, Kereš, Khochfar, Law, Lehnert, Lotz, M. Puech, Maehara, Marcillac, Markarian, McBride, Melbourne, Mignoli, Mo, Moster, Muñoz-Mateos, Neichel, Nilsson, Noguchi, Noguchi, Noterdaeme, Overzier, Overzier, Overzier, O’Neil, Peirani, Petty, Pizzella, Polyachenko, Puech, Puech, Puech, Puech, Puech, Puech, Purcell, Pustilnik, Pérez-Gallego, Pérez-González, Rampazzo, Ravikumar, Robertson, Robertson, Rodrigues, Rothberg, Safronov, Sancisi, Schombert, Springel, Stewart, Taniguchi, Taniguchi, Toomre, Toth, Van Den, Van Starkenburg, Vega, Wang, Wang, Wright, Wright, Yang, Yang, Zhang   +144 more
core   +3 more sources

Unlocking Photodetection Mode Switching from a Simple Lateral Design

Advanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong, Keng‐Te Lin, Joel van Embden, Taimur Ahmed, Yumeng Du, Dashen Dong, Yiwen Mai, Junlin Lu, Sumeet Walia, Baohua Jia, Tianyi Ma   +10 more
wiley   +1 more source

Breaking Down the CosmoGEMS: Toward Modeling and Understanding Globular Cluster Stellar Streams in a Fully Cosmological Context

The Astrophysical Journal
Next-generation surveys are expected to uncover thousands of globular cluster (GC) stellar streams, motivating the need for a theoretical framework that produces realistic GC streams in a fully cosmological, Milky Way–like environment.
Nondh Panithanpaisal, Robyn E. Sanderson, Carl L. Rodriguez, Tjitske Starkenburg, Sarah Pearson, Ana Bonaca, Philip F. Hopkins, Brian T. Cook, Arpit Arora, Newlin C. Weatherford   +9 more
doaj   +1 more source

The Outer Stellar Halos of Galaxies: how Radial Merger Mass Deposition, Shells and Streams depend on Infall-Orbit Configurations

, 2019
Galaxy mergers are a fundamental part of galaxy evolution. To study the resulting mass distributions of different kinds of galaxy mergers, we present a simulation suite of 36 high-resolution isolated merger simulations, exploring a wide range of ...
Burkert, Andreas, Dolag, Klaus, Hoffmann, Tadziu L., Karademir, Geray S., Moster, Benjamin P., Remus, Rhea-Silvia, Steinwandel, Ulrich, Zhang, Jielai   +7 more
core   +1 more source

Detecting the Disruption of Dark-Matter Halos with Stellar Streams [PDF]

Physical Review Letters, 2016
Narrow stellar streams in the Milky Way halo are uniquely sensitive to dark-matter subhalos, but many of these subhalos may be tidally disrupted. I calculate the interaction between stellar and dark-matter streams using analytical and $N$-body calculations, showing that disrupting objects can be detected as low-concentration subhalos.
openaire   +3 more sources