Results 31 to 40 of about 241,534 (269)

The long bar as seen by the VVV Survey: II. Star counts [PDF]

, 2013
Context: There is still some debate about the presence and the morphological properties of the long bar in the inner Galaxy. Aims: We investigate the morphological properties of the long Galactic bar using the VVV survey extending star counts at least ...
Amôres, Eduardo, González-Fernández, Carlos, Gurovich, Sebastian, López-Corredoira, Martín, Minniti, Dante, Moitinho, André   +5 more
core   +2 more sources

Surveying the state of writing education in physics and astronomy

Physical Review Physics Education Research
Writing is a critical skill for modern science, enabling collaboration, scientific discourse, public outreach, and more. Accordingly, it is important to consider how physicists and astronomers are trained to write.
Briley L. Lewis
doaj   +1 more source

Recurrent Nova IM Normae

, 2002
We detected the second historical outburst of the 1920 nova IM Nor. Accurate astrometry of the outbursting object revealed the true quiescent counterpart having a magnitude of R=17.0 mag and B=18.0 mag.
Kato, T., Liller, W., Monard, B., Yamaoka, H.   +3 more
core   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Circular Polarization in Pulsar Integrated Profiles: Updates

, 2006
We update the systematic studies of circular polarization in integrated pulse profiles by Han et al (1998). Data of circular polarization profiles are compiled.
Biggs J D, Crawford F, Gil J A, Gould D M, Hamilton P A, Han J L, Jin-lin Han, Kramer M, Kramer M, Lommen A N, Lyne A G, Macquart J P, Manchester R N, Manchester R N, McCulloch P M, Melrose D, Navarro J, Petrova S A, Qiao G J, Qiao G J, Radhakrishnan V, Roberts M S E, Stairs I H, van Ommen T D, von Hoensbroech A, von Hoensbroech A, Weisberg J M, Weisberg J M, Xiao-Peng You, Xilouris K M, Xu R X   +30 more
core   +1 more source

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source

Stability of the mixed phase in hybrid stars

, 2004
The transition from hadronic matter to quark matter in the core of neutron stars is likely to be associated with the appearance of a mixed phase, leading to a smooth variation of the star density profile.
Akmal, Baym, Baym, Baym, Berger, Berger, Carlson, Chodos, Cottam, De Grand, Finn, Glendenning, Heiselberg, Heiselberg, Lattimer, McDermott, Miniutti, O. Benhar, Pethick, Pieper, Pudliner, Quaintrell, R. Rubino, Ravenhall, Satz, Steiner, Tamagaki, Thorsett, Volkoff, Wiringa, Wiringa   +30 more
core   +1 more source

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

Inexpensive DIY Magnetometer Designs for Formal and Informal Investigations of Geomagnetic Sq Variations and Space Weather Events

IEEE Access
Simple magnetometers are the gateway instruments for exploring the geomagnetic field that can be used by hobbyists and teachers alike to monitor and study a variety of space weather phenomena.
Sten Odenwald, Hilarie Davis, Christina Milotte, Cris L. DeWolf   +3 more
doaj   +1 more source