Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4m telescope

Kavli Affiliate: Xuebing Wu | First 5 Authors: WeiMin Yi, XueBing Wu, FeiGe Wang, JinYi Yang, Qian Yang | Summary: The ultraviolet broad absorption lines have been seen in the spectra of quasars at high redshift, and are generally considered to be caused by outflows with velocities from thousands kilometers per second to one tenth […]


Continue.. Discovery of two broad absorption line quasars at redshift about 4.75 using the Lijiang 2.4m telescope

The Subaru FMOS galaxy redshift survey (FastSound). IV. New constraint on gravity theory from redshift space distortions at $zsim 1.4$

Kavli Affiliate: Naoyuki Tamura | First 5 Authors: Teppei Okumura, Chiaki Hikage, Tomonori Totani, Motonari Tonegawa, Hiroyuki Okada | Summary: We measure the redshift-space correlation function from a spectroscopic sample of 2783 emission line galaxies from the FastSound survey. The survey, which uses the Subaru Telescope and covers the redshift ranges of $1.19<z<1.55$, is the […]


Continue.. The Subaru FMOS galaxy redshift survey (FastSound). IV. New constraint on gravity theory from redshift space distortions at $zsim 1.4$

Nano-scale strain engineering of graphene and graphene-based devices

Kavli Affiliate: N. C. Yeh | First 5 Authors: N. -C. Yeh, C. -C. Hsu, M. L. Teague, J. -Q. Wang, D. A. Boyd | Summary: Structural distortions in nano-materials can induce dramatic changes in their electronic properties. This situation is well manifested in graphene, a two-dimensional honeycomb structure of carbon atoms with only one […]


Continue.. Nano-scale strain engineering of graphene and graphene-based devices

Ultrastable frequency reference at 1.56 μm using a CO molecular overtone transition with the noise immune cavity-enhanced optical heterodyne molecular spectroscopy method

Kavli Affiliate: Robert Byer | First 5 Authors: Shailendar Saraf, Paul Berceau, Alberto Stochino, Robert Byer, John Lipa | Summary: We report on an ultrastable molecular clock based on the interrogation of the 3{nu} rotational-vibrational combination band at 1563nm of carbon monoxide 12C16O. The laser stabilization scheme is based on frequency modulation (FM) saturation spectroscopy […]


Continue.. Ultrastable frequency reference at 1.56 μm using a CO molecular overtone transition with the noise immune cavity-enhanced optical heterodyne molecular spectroscopy method

Delensing Cosmic Microwave Background B-modes with the Square Kilometre Array Radio Continuum Survey

Kavli Affiliate: Blake Sherwin | First 5 Authors: Toshiya Namikawa, Daisuke Yamauchi, Blake Sherwin, Ryo Nagata, | Summary: We explore the potential use of the Radio Continuum (RC) survey conducted by the Square Kilometre Array (SKA) to remove (delens) the lensing-induced B-mode polarization and thus enhance future cosmic microwave background (CMB) searches for inflationary gravitational […]


Continue.. Delensing Cosmic Microwave Background B-modes with the Square Kilometre Array Radio Continuum Survey

Constraining High Redshift X-ray Sources with Next Generation 21 cm Power Spectrum Measurements

Kavli Affiliate: Jacqueline Hewitt | First 5 Authors: Aaron Ewall-Wice, Jacqueline Hewitt, Andrei Mesinger, Joshua S. Dillon, Adrian Liu | Summary: We use the Fisher matrix formalism and semi-numerical simulations to derive quantitative predictions of the constraints that power spectrum measurements on next-generation interferometers, such as the Hydrogen Epoch of Reionization Array (HERA) and the […]


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Probing Wolf-Rayet Winds: Chandra/HETG X-Ray Spectra of WR 6

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: David P. Huenemoerder, Kenneth G. Gayley, Wolf-Rainer Hamann, Richard Ignace, Joy S. Nichols | Summary: With a deep Chandra/HETGS exposure of WR 6, we have resolved emission lines whose profiles show that the X-rays originate from a uniformly expanding spherical wind of high X-ray-continuum optical depth. […]


Continue.. Probing Wolf-Rayet Winds: Chandra/HETG X-Ray Spectra of WR 6