Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Maddalena, Ronald J."'
Autor:
Price, Danny C., Enriquez, J. Emilio, Brzycki, Bryan, Croft, Steve, Czech, Daniel, DeBoer, David, DeMarines, Julia, Foster, Griffin, Gajjar, Vishal, Gizani, Nectaria, Hellbourg, Greg, Isaacson, Howard, Lacki, Brian, Lebofsky, Matt, MacMahon, David H. E., de Pater, Imke, Siemion, Andrew P. V., Werthimer, Dan, Green, James A., Kaczmarek, Jane F., Maddalena, Ronald J., Mader, Stacy, Drew, Jamie, Worden, S. Pete
Publikováno v:
The Astronomical Journal 159,3 (2020) 86
Breakthrough Listen (BL) is a ten-year initiative to search for signatures of technologically capable life beyond Earth via radio and optical observations of the local Universe. A core part of the BL program is a comprehensive survey of 1702 nearby s
Externí odkaz:
http://arxiv.org/abs/1906.07750
Autor:
Frayer, David T., Maddalena, Ronald J., White, Steven, Watts, Galen, Kepley, Amanda, Li, Jialu, Harris, Andrew I.
The calibration procedures for data collected for Argus and the 4mm Receiver instruments on the GBT are presented. The measured beam size, aperture efficiency, and main-beam efficiency are derived for the range of observing frequencies (66--116 GHz)
Externí odkaz:
http://arxiv.org/abs/1906.02307
Autor:
Surnis, Mayuresh P., Agarwal, Devansh, Lorimer, Duncan R., Pei, Xin, Foster, Griffin, Karastergiou, Aris, Golpayegani, Golnoosh, Maddalena, Ronald J., White, Steve, Armour, Wes, Cobb, Jeff, McLaughlin, Maura A., MacMahon, David H. E., Siemion, Andrew P. V., Werthimer, Dan, Williams, Chris J.
We describe the design and deployment of GREENBURST, a commensal Fast Radio Burst (FRB) search system at the Green Bank Telescope. GREENBURST uses the dedicated L-band receiver tap to search over the 960$-$1920 MHz frequency range for pulses with dis
Externí odkaz:
http://arxiv.org/abs/1903.05573
Recent measurements at Q-band (43 GHz) have verified the improved performance of the GBT provided by the updated gravity model that was deployed in the fall of 2014. The measured gain curve is indistinguishable from 1.0 over an elevation range from 1
Externí odkaz:
http://arxiv.org/abs/1811.00105
Autor:
Frayer, David T., Maddalena, Ronald J., Ivison, R. J., Smail, Ian, Blain, Andrew W., Bout, Paul Vanden
We present CO(1-0), CO(3-2), and CO(7-6) observations using the Green Bank Telescope (GBT) and the Atacama Large Millimeter Array (ALMA) of the z=2.8 sub-millimeter galaxy SMM J02399-0136. This was the first submillimeter-selected galaxy discovered a
Externí odkaz:
http://arxiv.org/abs/1805.07212
Autor:
MacMahon, David H. E., Price, Danny C., Lebofsky, Matthew, Siemion, Andrew P. V., Croft, Steve, DeBoer, David, Enriquez, J. Emilio, Gajjar, Vishal, Hellbourg, Gregory, Isaacson, Howard, Werthimer, Dan, Abdurashidova, Zuhra, Bloss, Marty, Creager, Ramon, Ford, John, Lynch, Ryan S., Maddalena, Ronald J., McCullough, Randy, Ray, Jason, Whitehead, Mark, Woody, Dave
The Breakthrough Listen Initiative is undertaking a comprehensive search for radio and optical signatures from extraterrestrial civilizations. An integral component of the project is the design and implementation of wide-bandwidth data recorder and s
Externí odkaz:
http://arxiv.org/abs/1707.06024
Autor:
Jenness, Tim, Stobie, Elizabeth B., Maddalena, Ronald J., Garwood, Robert W., Fairclough, Jon H., Prestage, Richard M., Tilanus, Remo P. J., Padman, Rachael
The General Single-Dish Data format (GSDD) was developed in the mid-1980s as a data model to support centimeter, millimeter and submillimeter instrumentation at NRAO, JCMT, the University of Arizona and IRAM. We provide an overview of the GSDD requir
Externí odkaz:
http://arxiv.org/abs/1506.03136
Autor:
Frayer, D. T., Maddalena, Ronald J., Meijer, M., Hough, L., White, S., Norrod, R., Watts, G., Stennes, M., Simon, R., Woody, D., Srikanth, S., Pospieszalski, M., Bryerton, E., Whitehead, M., Ford, P., Mello, M., Bloss, M.
We present a 67--93.6 GHz spectral line survey of Orion-KL with the new 4 mm Receiver on the Green Bank Telescope (GBT). The survey reaches unprecedented depths and covers the low-frequency end of the 3 mm atmospheric window which has been relatively
Externí odkaz:
http://arxiv.org/abs/1502.01280
Autor:
Hunter, Todd R., Schwab, Frederic R., White, Steven D., Ford, John M., Ghigo, Frank D., Maddalena, Ronald J., Mason, Brian S., Nelson, Jack D., Prestage, Richard M., Ray, Jason, Ries, Paul, Simon, Robert, Srikanth, Sivasankaran, Whiteis, Peter
Publikováno v:
Publications of the Astronomical Society of the Pacific, Volume 123, issue 907, pp.1087-1099, September 2011
We describe the successful design, implementation, and operation of a 12 GHz holography system installed on the Robert C. Byrd Green Bank Telescope (GBT). We have used a geostationary satellite beacon to construct high-resolution holographic images o
Externí odkaz:
http://arxiv.org/abs/1107.2081
Autor:
Riechers, Dominik A., Carilli, Christopher L., Maddalena, Ronald J., Hodge, Jacqueline, Harris, Andrew I., Baker, Andrew J., Walter, Fabian, Wagg, Jeff, Bout, Paul A. Vanden, Weiss, Axel, Sharon, Chelsea E.
Publikováno v:
Astrophys.J.739:L32,2011
We report the detection of CO(1-0) emission in the strongly lensed high-redshift quasars IRAS F10214+4724 (z=2.286), the Cloverleaf (z=2.558), RX J0911+0551 (z=2.796), SMM J04135+10277 (z=2.846), and MG 0751+2716 (z=3.200), using the Expanded Very La
Externí odkaz:
http://arxiv.org/abs/1106.2553