Results 41 to 50 of about 776,248 (299)

Division B Commission 40: Radio Astronomy

, 2015
IAU Commission 40 for Radio Astronomy (hereafter C40) brought together scientists and engineers who carry out observational and theoretical research in radio astronomy and who develop and operate the ground and space-based radio astronomy facilities and ...
Carilli, Christopher, Justin L. Jonas, Nan, R., Rendong Nan, Rafaella Morganti, Hirabayashi, Hisashi, Taylor, R., Chapman, Jessica M., Morganti, R., Ohishi, M., Jonas, Justin L., Masatoshi Ohishi, Russell Taylor, Giovaninni, Gabriele, Lazio, Joseph, Montmerle, Thierry, Ronald Ekers, Monica Rubio, Carilli, C., Shastri, Prjaval, Rubio, Monica, Nan, Rendong, Jessica M. Chapman, Kellermann, Ken, Christopher Carilli, Ekers, Ronald, Ken Kellermann, Richard Hills, Ohishi, Masatoshi, Chapman, J., Hisashi Hirabayashi, Morganti, Raffaella, Rubio, M., Hills, Richard, Hills, R., Kellermann, K., Taylor, Russell, Jonas, J., Giovaninni, G., Hirabayashi, H., Gabriele Giovaninni, Lazio, J., Shastri, P., Joseph Lazio, Prjaval Shastri   +44 more
core   +1 more source

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

I. S. SHKLOVSKY AND LOW-FREQUENCY RADIO ASTRONOMY

Radio Physics and Radio Astronomy, 2017
Purpose: Proving of the high astrophysical significance of the low-frequency radio astronomy (decameter and adjacent hectometer and meter wavelengths), demonstration of the priority results of the Ukrainian low-frequency radio astronomy as well as ...
A. A. Konovalenko
doaj   +1 more source

Very high energy gamma ray astronomy and non pulsating low mass x-ray binaries [PDF]

, 1991
This thesis is concerned with non pulsating Low Mass X-Ray Binaries as Very High Energy γ-ray sources, in particular Scorpius X-1; the brightest of these objects in X-rays, and the most likely to be detectable at energies above 250 GeV.
Carraminana, Alberto, Carraminana, A
core  

Sub‐Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene

Advanced Materials, EarlyView.
In self‐assembled, reproducible, large‐area, quasi‐pristine graphene nanowrinkles, extreme curvature forces out‐of‐plane π‐electrons toward hybridization, driving a transition from classical to quantum orbital flexoelectricity. As curvature approaches the fundamental physical limit set by the C─C bond length, the resulting polarization increases by ...
Sathvik Ajay Iyengar, James G. McHugh, Jonathan P. Salvage, Robert Vajtai, Venkataramana Gadhamshetty, Alan B. Dalton, Manoj Tripathi, Pulickel M. Ajayan, Vincent Meunier   +8 more
wiley   +1 more source

Uncovering the Hidden Physical Structures and Protostellar Activities in the Low-metallicity S284-RE Region: Results from ALMA and JWST

The Astrophysical Journal
We present an observational study of the S284-RE region, a low-metallicity area associated with the extended S284 H ii region. A thermally supercritical filament (mass ∼2402 M _⊙ and length ∼8.5 pc) is investigated using the Herschel column density map ...
O. R. Jadhav, L. K. Dewangan, Aayushi Verma, N. K. Bhadari, A. K. Maity, Saurabh Sharma, Mamta   +6 more
doaj   +1 more source

A Study of Babylonian Goal-Year Planetary Astronomy [PDF]

, 2009
Throughout the Late Babylonian Period, Mesopotamian astronomers made nightly observations of the planets, Moon and stars. Based on these observations, they developed several different techniques for predicting future astronomical events.
GRAY, JENNIFER,MARY,KNIGHTLEY, Gray, Jennifer Mary Knightley   +1 more
core  

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

Advanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh, PeiYu Cai, Elton J. G. Santos   +2 more
wiley   +1 more source

Automated Scheduling of Doppler Exoplanet Observations at Keck Observatory

The Astronomical Journal
Precise Doppler studies of extrasolar planets require fine-grained control of observational cadence, i.e., the timing of and spacing between observations.
Luke B. Handley, Erik A. Petigura, Velibor V. Mišić, Jack Lubin, Howard Isaacson   +4 more
doaj   +1 more source

Observing Conditions for Submillimeter Astronomy

, 2011
© 2011 Instituto de Astronomía, UNAM. It is a pleasure to thank the many colleagues who have contributed to these measurements. Jeff Peterson initiated development of the 350 μm tippers. CCAT site evaluation is carried out in the Parque Astronómico Atacama in northern Chile under the auspices of the Programa de Astronomía, a program of the Comisión ...
openaire   +3 more sources