Results 111 to 120 of about 301,318 (244)

Two bolometer arrays for far-infrared and submillimeter astronomy [PDF]

, 2004
We describe the development, construction, and testing of two 384 element arrays of ion-implanted semiconducting cryogenic bolometers designed for use in far-infrared and submillimeter cameras.
Moseley, S. H., Babu, S. R., Allen, C. A., Harper, D. A., Loewenstein, R. F., Wollack, E. J., Voellmer, G., Jhabvala, M. D., Silverberg, R. F., Chuss, D. T., Staguhn, J. G., Dotson, J. L., Benford, D. J., Dowell, C. D.   +13 more
core  

Research on teaching astronomy in the planetarium

, 2017
From a noted specialist in astronomy education and outreach, this Brief provides an overview of the most influential discipline-based science education research literature now guiding contemporary astronomy teaching.
Tatge, Coty B, Timothy F. Slater, Tatge, Coty B., Slater, Timothy F., Slater, Timothy F, Coty B. Tatge   +5 more
core   +1 more source

A Large Molecular Gas Reservoir in the Protocluster SPT2349−56 at z = 4.3

The Astrophysical Journal Letters
We present Atacama Compact Array (ACA) Band-3 observations of the protocluster SPT2349−56, an extreme system hosting >10 ultraluminous infrared galaxies (ULIRGs; L _IR  ≳  10 ^12 L _⊙ ) in a 200 kpc diameter region at z  =  4.3, to study its integrated ...
Dazhi Zhou, Scott C. Chapman, Nikolaus Sulzenauer, Ryley Hill, Manuel Aravena, Pablo Araya-Araya, Jared Cathey, Daniel P. Marrone, Kedar A. Phadke, Cassie Reuter, Manuel Solimano, Justin S. Spilker, Joaquin D. Vieira, David Vizgan, George C. P. Wang, Axel Weiss   +15 more
doaj   +1 more source

Thermal Structure and Millimeter Emission from a Protoplanetary Disk with Embedded Protoplanets from Radiative Transfer Modeling

The Astrophysical Journal
The discovery of protoplanets and circumplanetary disks provides a unique opportunity to characterize planet formation through observations. Massive protoplanets shape the physical and chemical structure of their host circumstellar disk by accretion ...
Felipe Alarcón, Edwin A. Bergin
doaj   +1 more source

A Highly Compact 530-610 GHz Bandpass Filter Using Patch Resonators to Develop SSB Spectrometer

IEEE Journal of Microwaves
In double sideband (DSB) receiver systems, both the desired signals and unwanted image frequencies are downconverted, necessitating effective filtering to enhance system selectivity and sensitivity.
Berhanu T Bulcha, Diego Tononi, Thomas R. Stevenson, Edward J. Wollack   +3 more
doaj   +1 more source

Characterizing Faint Submillimeter Galaxies with Cluster Lensing [PDF]

, 2017
Based on the measurements of the integrated background light from extragalactic sources, it is known that about half of the starlight is absorbed by dust and re-radiated into the far-infrared (FIR).
Hsu, Li-Yen
core   +1 more source

A Monopolar Jet from Protostar HOPS 10: Evidence for Asymmetric Magnetized Launching

The Astronomical Journal
A fundamental challenge in star formation is understanding how a protostar accretes mass from its circumstellar disk while removing excess angular momentum.
Somnath Dutta
doaj   +1 more source

Community Plan for Far-Infrared/Submillimeter Space Astronomy

, 2004
This paper represents the consensus view of the 124 participants in the Second Workshop on New Concepts for Far-Infrared/Submillimeter Space Astronomy.We recommend that NASA pursue the vision for far-IR astronomy outlined in the NAS Decadal Survey, which
Benford, Dominic, Akeson, Rachel, Ali, Shafinaz, Blain, Andrew, Baker, Charles, Amato, Michael, Ade, Peter, Bock, James, Arendt, Richard, Borne, Kirk   +9 more
core  

Far-field Pattern Analysis Based on Piecewise Aperture Field Integration for Leighton Chajnantor Telescope Antenna under Gravity and Wind Load

The Astronomical Journal
The Caltech Submillimeter Observatory telescope will be relocated from Mauna Kea, Hawaii to Chajnantor Plateau, Chile, refurbished there and renamed the Leighton Chajnantor Telescope (LCT).
Jia You, Zheng Wang
doaj   +1 more source

Improved Carbon and Nitrogen Isotopic Ratios for CH3CN in Titan’s Atmosphere Using ALMA

The Planetary Science Journal
Titan, Saturn’s largest satellite, maintains an atmosphere composed primarily of nitrogen (N _2 ) and methane (CH _4 ) that leads to complex organic chemistry.
Jonathon Nosowitz, Martin A. Cordiner, Conor A. Nixon, Alexander E. Thelen, Zbigniew Kisiel, Nicholas A. Teanby, Patrick G. J. Irwin, Steven B. Charnley, Véronique Vuitton   +8 more
doaj   +1 more source