Results 71 to 80 of about 163,280 (339)

A Lyman-alpha-only AGN from the Sloan Digital Sky Survey

, 2004
The Sloan Digital Sky Survey has discovered a z=2.4917 radio-loud active galactic nucleus (AGN) with a luminous, variable, low-polarization UV continuum, H I two-photon emission, and a moderately broad Lyman-alpha line (FWHM = 1430 km/s) but without ...
Atsuko Nitta, Bergeron J., Bremer M. N., Brenda Frye, Bunker A., Christy A. Tremonti, Damien Hutsemékers, Daniel C. Long, Daniel E. Vanden Berk, David J. Schlegel, De Breuck C., Donald G. York, Donald P. Schneider, Eric Neilsen, Erik A. Hoversten, Gillian R. Knapp, J. Brinkmann, Jurek Krzesinski, Karl Glazebrook, Manzini A., Martin Niederste-Ostholt, Masataka Fukugita, Michael A. Strauss, Michael Harvanek, P. R. Newman, Patrick B. Hall, Pentericci L., S. Kleinman, S. Snedden, Timothy M. Heckman, van Ojik R., Željko Ivezić   +31 more
core   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Keck Observations of the Most Distant Galaxy: 8C1435+63 at z=4.25

, 1994
We report on Keck observations and confirm the redshift of the most distant galaxy known: 8C1435+63 at z=4.25. The spectrum shows a strong Ly$\alpha$ line, a Ly$\alpha$ forest continuum break and a continuum break at $\lambda_{rest}=912$\AA.
Dey, Arjun, Graham, James R., Spinrad, Hyron   +2 more
core   +1 more source

An Upper Limit on the Linear Polarization Fraction of the GW170817 Radio Continuum [PDF]

Astrophysical Journal, 2018
We present late-time radio observations of GW170817, the first binary neutron-star (NS) merger discovered through gravitational waves (GWs) by the advanced Laser Interferometer Gravitational-wave Observatory (LIGO) and Virgo detectors.
A. Corsi, G. Hallinan, D. Lazzati, K. Mooley, E. Murphy, D. Frail, D. Carbone, D. Kaplan, T. Murphy, S. Kulkarni, K. Hotokezaka   +10 more
semanticscholar   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

The CHILES Continuum and Polarization Survey. I. Survey Design and Noise Characterization

The Astronomical Journal
We introduce and describe the CHILES Continuum and Polarisation (CHILES Con Pol) Survey, a 1000 hr 1.4 GHz wideband full polarization radio continuum deepfield with the Very Large Array, commensurate with the CHILES H i deepfield.
Nicholas M. Luber, Min S. Yun, Hansung B. Gim, Daniel Krista-Kelsey, D.J. Pisano, Emmanuel Momjian, Chris Hales   +6 more
doaj   +1 more source

New 20-cm radio-continuum study of the small Magellanic cloud - part III: Compact Hii regions [PDF]

Serbian Astronomical Journal, 2012
We present and discuss a new catalogue of 48 compact Hii regions in the Small Magellanic Cloud (SMC) and a newly created deep 1420 MHz (λ=20 cm) radio-continuum image of the N19 region located in the southwestern part of the SMC.
Wong G.F., Filipović M.D., Crawford E.J., Tothill N.F.H., de Horta A.Y., Galvin T.J.   +5 more
doaj   +1 more source

The Extreme Compact Starburst in MRK 273

, 2000
Images of neutral Hydrogen 21cm absorption and radio continuum emission at 1.4 GHz from Mrk 273 were made using the Very Long Baseline Array and Very Large Array.
C. L. Carilli, Duric N., G. B. Taylor, Muxlow T. W., Stavely-Smith L.   +4 more
core   +2 more sources

Search for sub-mm, mm and radio continuum emission from extremely red objects [PDF]

, 2001
We present the results of sub-mm, mm (850 m, 450 m and 1250 m) and radio (1.4 and 4.8 GHz) continuum observations of a sample of 27 K-selected Extremely Red Objects, or EROs, (14 of which form a complete sample with K 5) aimed at detecting dusty ...
N. Mohan, A. Cimatti, H. Roettgering, P. Andreani, P. Severgnini, R. Tilanus, C. Carilli, S. A. S. Rri, India., IISc, OA Arcetri, Sterrewacht, Leiden, Mpi Garching, O. Padova, U. Firenze, Jach, Hawaii, Nrao, Igppllnl   +19 more
semanticscholar   +1 more source

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

Advanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs, Charalampos Drivas, Arthur Graf, Sasha Kroon, Santosh Kumar, Junxi Liu, Antonio Torres‐Lopez, Cameron Price, Edward Garland, Ines Lezcano‐Gonzalez, Christopher. M. A. Parlett, Vannia C. dos Santos‐Durndell, Lee J. Durndell   +12 more
wiley   +1 more source