Results 11 to 20 of about 1,474 (253)

Models of Millimeter and Radio Emission from Interacting Supernovae

The Astrophysical Journal, 2022
This work utilizes established models of synchrotron-powered light curves for core-collapse supernovae in dense circumstellar environments, namely, type IIn and Ibn, to demonstrate the potential for detecting millimeter emission from these events.
Nitika Yadlapalli Yurk, Vikram Ravi, Anna Y. Q. Ho   +2 more
doaj   +1 more source

Simultaneous Millimeter-wave, Gamma-Ray, and Optical Monitoring of the Blazar PKS 2326-502 during a Flaring State

The Astrophysical Journal Letters, 2023
Including millimeter-wave data in multiwavelength studies of the variability of active galactic nuclei (AGN) can provide insights into AGN physics that are not easily accessible at other wavelengths.
J. C. Hood II, A. Simpson, A. McDaniel, A. Foster, P. A. R. Ade, M. Ajello, A. J. Anderson, J. E. Austermann, J. A. Beall, A. N. Bender, B. A. Benson, F. Bianchini, L. E. Bleem, J. E. Carlstrom, C. L. Chang, P. Chaubal, H. C. Chiang, T-L. Chou, R. Citron, C. Corbett Moran, T. M. Crawford, A. T. Crites, T. de Haan, M. A. Dobbs, W. Everett, J. Gallicchio, E. M. George, N. Gupta, N. W. Halverson, G. C. Hilton, G. P. Holder, W. L. Holzapfel, J. D. Hrubes, N. Huang, J. Hubmayr, K. D. Irwin, L. Knox, A. T. Lee, D. Li, A. Lowitz, G. Madejski, M. Malkan, J. J. McMahon, S. S. Meyer, J. Montgomery, T. Natoli, J. P. Nibarger, G. Noble, V. Novosad, Y. Omori, S. Padin, S. Patil, C. Pryke, C. L. Reichardt, J. E. Ruhl, B. R. Saliwanchik, K. K. Schaffer, C. Sievers, G. Smecher, A. A. Stark, C. Tucker, T. Veach, J. D. Vieira, G. Wang, N. Whitehorn, W. L. K. Wu, V. Yefremenko, J. A. Zebrowski, L. Zhang   +68 more
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The PhotoDissociation Region Toolbox: Software and Models for Astrophysical Analysis

The Astronomical Journal, 2022
The PhotoDissociation Region Toolbox provides comprehensive, easy-to-use, public software tools and models that enable an understanding of the interaction of the light of young, luminous, massive stars with the gas and dust in the Milky Way and in other ...
Marc W. Pound, Mark G. Wolfire
doaj   +1 more source

Development of Flat Silicon-Based Mesh Lens Arrays for Millimeter and Sub-millimeter Wave Astronomy [PDF]

Journal of Low Temperature Physics, 2020
AbstractThe high sensitivity requirements set by future cosmic microwave background instruments are pushing the current technologies to produce highly performant focal plane arrays with thousands of detectors. The coupling of the detectors to the telescope optics is a challenging task.
Pisano G., Austermann J., Beall J., Halverson N., Hubmayr J., Jaehnig G., McKenney C. M., Raymond B., Suzuki A.   +8 more
openaire   +5 more sources

Measurements and Evaluations of the Atmospheric Transparency at Short Millimeter Wavelengths at Candidate Sites for Millimeter- and Sub-Millimeter-Wave Telescopes

Applied Sciences, 2023
Radio astronomical observations at millimeter and submillimeter wavelengths are a very important tool for astrophysical research. However, there is a huge area in northeastern Eurasia, including the whole Russian territory, which lacks sufficiently large
Igor I. Zinchenko, Alexander V. Lapinov, Vyacheslav F. Vdovin, Peter M. Zemlyanukha, Tatiana A. Khabarova   +4 more
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CMOS System-on-Chip Spectrometer Processors for Spaceborne Microwave-to-THz Earth and Planetary Science and Radioastronomy

IEEE Journal of Microwaves, 2022
This article presents development of CMOS system-on-chip spectrometer processor for Spaceborne Earth Science, Planetary Science and Astronomy. The developed chip is intended for use in rotational emission spectroscopy observations from microwave to sub ...
Adrian Tang, Yangyho Kim, Yan Zhang, Gabriel Virbila, Nathaniel Livesey, Goutam Chattopadhyay, Subash Khanal, Jacob Kooi, Mau-Chung Frank Chang   +8 more
doaj   +1 more source

Integrated focal plane arrays for millimeter-wave astronomy [PDF]

AIP Conference Proceedings, 2002
We are developing focal plane arrays of bolometric detectors for sub-millimeter and millimeter-wave astrophysics. We propose a flexible array architecture using arrays of slot antennae coupled via low-loss superconducting Nb transmission line to microstrip filters and antenna-coupled bolometers.
Bock, James J., Goldin, Alexey, Hunt, Cynthia, Lange, Andrew E., LeDuc, Henry G., Day, Peter K., Vayonakis, Anastasios, Zmuidzinas, Jonas   +7 more
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Outflows and disks of brown dwarfs with SMA, CARMA and ALMA

EPJ Web of Conferences, 2013
Brown dwarfs are on the dividing line between planets and stars. Up to date, about 1,000 brown dwarfs, including the coolest known brown dwarfs with temperatures of ∼300 K as cool as the human body, have been discovered.
Tho Do D., Martín Eduardo, Ho Paul, Phan-Bao Ngoc, Lee Chin-Fei   +4 more
doaj   +1 more source

Introduction to Millimeter/Sub-millimeter Astronomy [PDF]

, 2018
This is an introduction to the basic elements needed for the measurements and interpretation of data in the millimeter and sub-mm wavelength range. A more complete version will be published in the proceedings of the Saas Fee Winter School 2008.
openaire   +2 more sources

Development of Wideband Tunable E-Band (60-70 GHz) Gunn Oscillator [PDF]

Journal of Astronomy and Space Sciences, 2000
A Gunn waveguide-oscillator, mechanically tunable from 60 to 70 GHz, has been developed for use as a local oscillator (LO) in millimeter radio telescope.
Hyunjoo Kim, Seogtae Han, Taiseong Kim, Yonggi Kim   +3 more
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