A Dual-polarized Broadband Planar Antenna and Channelizing Filter Bank for Millimeter Wavelengths

Autor: OBrient, Roger, Ade, Peter, Arnold, Kam, Edwards, Jennifer, Engargiola, Greg, Holzapfel, William L, Lee, Adrian T, Myers, Michael J, Quealy, Erin, Rebeiz, Gabriel, Richards, Paul, Suzuki, Aritoki

We describe the design, fabrication, and testing of a broadband log-periodic antenna coupled to multiple cryogenic bolometers. This detector architecture, optimized here for astrophysical observations, simultaneously receives two linear polarizations

Externí odkaz: http://arxiv.org/abs/1302.0325

Primary Beam and Dish Surface Characterization at the Allen Telescope Array by Radio Holography

Autor: ATA GROUP, Atkinson, Shannon, Backer, D. C., Backus, P. R., Barott, William, Bauermeister, Amber, Blitz, Leo, Bock, D. C. -J., Bower, Geoffrey C., Bradford, Tucker, Cheng, Calvin, Croft, Steve, Dexter, Matt, Dreher, John, Engargiola, Greg, Fields, Ed, Heiles, Carl, Helfer, Tamara, Jordan, Jane, Jorgensen, Susan, Kilsdonk, Tom, Gutierrez-Kraybill, Colby, Keating, Garrett, Law, Casey, Lugten, John, MacMahon, D. H. E., McMahon, Peter, Milgrome, Oren, Siemion, Andrew, Smolek, Ken, Thornton, Douglas, Pierson, Tom, Randall, Karen, Ross, John, Shostak, Seth, Tarter, J. C., Urry, Lynn, Werthimer, Dan, Williams, Peter K. G., Whysong, David, Harp, G. R., Ackermann, R. F., Nadler, Z. J., Blair, Samantha K., Davis, M. M., Wright, M. C. H., Forster, J. R., DeBoer, D. R., Welch, W. J.

Publikováno v: IEEE Transactions on Antennas and Propagation, 59 (2011) p. 2004

The Allen Telescope Array (ATA) is a cm-wave interferometer in California, comprising 42 antenna elements with 6-m diameter dishes. We characterize the antenna optical accuracy using two-antenna interferometry and radio holography. The distortion of

Externí odkaz: http://arxiv.org/abs/1210.8246

The Allen Telescope Array Twenty-centimeter Survey - A 690-Square-Degree, 12-Epoch Radio Dataset - I: Catalog and Long-Duration Transient Statistics

Autor: Croft, Steve, Bower, Geoffrey C., Ackermann, Rob, Atkinson, Shannon, Backer, Don, Backus, Peter, Barott, William C., Bauermeister, Amber, Blitz, Leo, Bock, Douglas, Bradford, Tucker, Cheng, Calvin, Cork, Chris, Davis, Mike, DeBoer, Dave, Dexter, Matt, Dreher, John, Engargiola, Greg, Fields, Ed, Fleming, Matt, Forster, James R., Gutierrez-Kraybill, Colby, Harp, Gerry, Helfer, Tamara, Hull, Chat, Jordan, Jane, Jorgensen, Susanne, Keating, Garrett, Kilsdonk, Tom, Law, Casey, van Leeuwen, Joeri, Lugten, John, MacMahon, Dave, McMahon, Peter, Milgrome, Oren, Pierson, Tom, Randall, Karen, Ross, John, Shostak, Seth, Siemion, Andrew, Smolek, Ken, Tarter, Jill, Thornton, Douglas, Urry, Lynn, Vitouchkine, Artyom, Wadefalk, Niklas, Welch, Jack, Werthimer, Dan, Whysong, David, Williams, Peter K. G., Wright, Melvyn

We present the Allen Telescope Array Twenty-centimeter Survey (ATATS), a multi-epoch (12 visits), 690 square degree radio image and catalog at 1.4GHz. The survey is designed to detect rare, very bright transients as well as to verify the capabilities

Externí odkaz: http://arxiv.org/abs/1006.2003

Giant Molecular Clouds in M33 -- II. High Resolution Observations

Autor: Rosolowsky, Erik, Engargiola, Greg, Plambeck, Richard, Blitz, Leo

Publikováno v: Astrophys.J.599:258-274,2003

We present 12CO(1->0) observations of 45 giant molecular clouds in M33 made with the BIMA array. The observations have a linear resolution of 20 pc, sufficient to measure the sizes of most GMCs in the sample. We place upper limits on the specific ang

Externí odkaz: http://arxiv.org/abs/astro-ph/0307322

Antenna-coupled bolometer arrays using transition-edge sensors

Autor: Myers, Michael J., Ade, Peter, Engargiola, Greg, Holzapfel, William, Lee, Adrian T., O'Brient, Roger, Richards, Paul L., Smith, Andy, Spieler, Helmuth, Tran, Huan

Publikováno v: Myers, Michael J.; Ade, Peter; Engargiola, Greg; Holzapfel, William; Lee, Adrian T.; O'Brient, Roger; et al.(2004). Antenna-coupled bolometer arrays using transition-edge sensors. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/6rs6p5mx

We describe the development of an antenna-coupled bolometer array for use in a Cosmic Microwave Background polarization experiment. Prototype single pixels using double-slot dipole antennas and integrated microstrip band defining filters have been bu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______325::d17608caa921122cc38f20ba12bfbb82
http://www.escholarship.org/uc/item/6rs6p5mx