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81. World Day at Arecibo - Examples and Highlights
... This example shows the Interference removal for the Baker Electron Density data (Qihou Zhou). ... The Arecibo ISR can measure velocities to an accuracy within 1 m/s for an integration time of 30 second in the D-region. ... The Arecibo ISR can measure the neutral winds and temperature in the E-region. ... We are working on to get the ion neutral collision frequency as well. ... The other parameters that we regularly measure include electron temperature, vector ion drift, light ion contents etc. ...
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Ссылки http://www.naic.edu/aisr/worldday/wd_highlight.html -- 12.8 Кб -- 05.03.2003
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82. http://www.naic.edu/aisr/worldday/wd_intro.html
Arecibo World Day data description . ... The F-region program covers the altitude range of 140 - 660 km. ... The KINDAT code in the CEDAR database for these parameters is 2010. ... The KINDAT code in the CEDAR database is 2021 for this kind of data. The barker-code program allows the measurement of electron concentration at a height resolution of 0.6 km with a very high S/N. This program typically covers the altitude range of 60 - 500 km. The KINDAT code in the CEDAR database is 2015. ...
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Ссылки http://www.naic.edu/aisr/worldday/wd_intro.html -- 11.8 Кб -- 05.03.2003
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83. http://www.naic.edu/aisr/worldday/world_day.html
. Other related sites: . Back to Space and Atmospheric Science Department Homepage . Last updated on: March 7, 2003
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Ссылки http://www.naic.edu/aisr/worldday/world_day.html -- 13.2 Кб -- 07.03.2003
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84. ALFA
The Arecibo L-band Feed Array (ALFA) is a seven feed system that allows large-scale surveys of the sky to be conducted with unprecedented sensitivity using the 305-m Arecibo telescope in Puerto Rico. ALFA, operating near 1.4 GHz, consists of a cluster of seven cooled dual-polarization feeds, a fiber-optical transmission system, and digital back-end signal processors. ... ALFA Memos . Surveys and Data Products . ALFA Contact People: . ... Spectral lines: Robert Minchin . ... R. Minchin . ...
85. http://www.naic.edu/alfa/PInoteSurveyPrograms.pdf
March 23, 2007 MEMORANDUM To: ALFA Survey Principal Investigators From: R. L. Brown Subject: Scheduling the Surveys in the Post-Senior Review Era As you know, it is the NAIC plan to make substantial changes in the science operations model of the Arecibo Observatory in response to the recommendations of the NSF Astronomy senior review. ... Final approval of the telescope schedule, every telescope schedule, is the responsibility of Bob Kerr, the Observatory director. ...
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Ссылки http://www.naic.edu/alfa/PInoteSurveyPrograms.pdf -- 18.4 Кб -- 23.03.2007
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86. ALFA Friends
. Pulsars: Fernando Camilo . Spectral lines: Robert Minchin . Continuum: Chris Salter . Last updated: Monday, 26-Nov-2012 17:17:48 AST . R. Minchin . [NAIC] [Astro Home] [Staff] [Observing] [Receivers] [ALFA] [RFI] [Data] [Memos] [Publications] [Calendar] [Contacts] .
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Ссылки http://www.naic.edu/alfa/alfafriends.shtml -- 2.8 Кб -- 27.02.2014
[ Сохраненная копия ] Ссылки http://www.naic.edu/~astro/alfafriends.shtml -- 2.8 Кб -- 27.02.2014
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[ Сохраненная копия ] Ссылки http://www.naic.edu/~astro/alfafriends.shtml -- 2.8 Кб -- 27.02.2014
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87. ALFA
The Arecibo L-band Feed Array (ALFA) is a seven feed system that will allow large-scale surveys of the sky to be conducted with unprecedented sensitivity using the 305-m Arecibo telescope in Puerto Rico. The NAIC Arecibo Observatory telescope, operated by Cornell University for the National Science Foundation, is the largest and most sensitive single dish radio telescope in the world and is used to study large numbers of sources that are too faint to be seen with other telescopes. ...
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Ссылки http://www.naic.edu/alfa/alfafront.shtml -- 5.8 Кб -- 02.02.2013
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88. http://www.naic.edu/alfa/consortia-time-1.pdf
PRELIMINARY DRAFT RECOMMENDATIONS (from Consortium Time -Exercise activity) SUMMARY Given the Senior Review (SR) dictum for spending 80% of available astronomical hours on ALFA surveys, about 1000 hours of telescope time are available in principle to each consortium per year , before sidereal time requirements are factored in. g-ALFA has a smaller time request of order 2500 hours or ~625 hours per year if over 4 years (or ~835 ...
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Ссылки http://www.naic.edu/alfa/consortia-time-1.pdf -- 107.4 Кб -- 19.04.2007
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89. ALFA Extragalactic HI Studies
... the New Observer . The E-ALFA Consortium . ... Since the installation of ALFA, extragalactic HI astronomy with Arecibo has entered a new phase. ... The reason behind the change is that ALFA allows Arecibo to carry out surveys, covering large areas of sky rapidly and with unprecedented sensitivity. ... The Arecibo Legacy Fast ALFA (ALFALFA) survey is covering 7000 sq. deg. of sky at high galactic latitude with an integration time of 48 s/beam. ... Arecibo Legacy Fast ALFA Survey (ALFALFA) . ...
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Ссылки http://www.naic.edu/alfa/ealfa/ -- 22.6 Кб -- 01.10.2012
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90. E-ALFA at AAS 207
There were a number of E-ALFA presentations and posters at the AAS meeting in Washington, D. C. in January 2006: . AGES, AUDS, ALFALFA, ZOA Surveying the Extragalactic Sky from A to Z. Minchin R. F. for the E-ALFA Consortium, 2005, AAS, 207, 192.02. ADS Bibcode: 2005AAS.. ... Download: PDF . ALFALFA: a Legacy Extragalactic HI Survey. Giovanelli R., 2005, AAS, 207, 192.03. ... Haynes M. P., 2005, AAS, 207, 192.08. ... A Signal Extraction Utility for the ALFALFA Survey. ... 207.8808F . ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_aas207.shtml -- 8.9 Кб -- 02.10.2012
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91. E-ALFA at IAU Symposium 244
... R. Giovanelli, in The Evolution of Galaxies through the Neutral Hydrogen Window , AIP Conf. ... M. P. Haynes, in The Evolution of Galaxies through the Neutral Hydrogen Window , AIP Conf. ... M. P. Haynes and the ALFALFA Team, in The Evolution of Galaxies through the Neutral Hydrogen Window , AIP Conf. ... S. di Serego Alighieri, M. Grossi, C. Giovanardi, S. Pellegrini and G. Trinchieri, in The Evolution of Galaxies through the Neutral Hydrogen Window , AIP Conf. ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_aohi.shtml -- 7.2 Кб -- 02.10.2012
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92. E-ALFA Consortium Guidelines
The "E-ALFA consortium" is a group of individuals interested in extragalactic spectral line programs usng ALFA and who are committed to coordinating efforts to the extent possible in order to maximize science return and program efficiency. ... The E-ALFA "coordinating committee" consists of representatives of E-ALFA consortium projects that have been granted telescope time or those in the development stage that have been endorsed by the E-ALFA consortium. ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_guidelines.shtml -- 8.4 Кб -- 02.10.2012
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93. E-ALFA at IAU Symposium 244
There were a number of E-ALFA presentations and posters at the IAU Symposium 244 on Dark Galaxies and Lost Baryons in Cardiff in June 2007: . ... Balonek T. J. for the ALFALFA Consortium, IAU Symp. 244. ... Cortese L., Minchin R. F., Auld R. R., Davies J. I., Catinella B., Momjian E., Rosenberg J. L., Taylor R., Gavazzi G., O'Neil K., 2007, IAU Symp. ... Download PDF of the proceedings. ... Giovanelli R., 2007, IAU Symp. ... Saintonge A. for the ALFALFA Consortium, 2007, IAU Symp. ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_iau244.shtml -- 7.7 Кб -- 02.10.2012
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94. E-ALFA Consortium Members
Note that while every effort has been made to list all members, any member of an E-ALFA project team, whether listed below or not, is a member of the E-ALFA consortium . ... Institute . ... University of Puerto Rico . ... Cardiff University . ... Ghent University . ... Colgate University . ... University of Wisconsin, Madison . ... Wise Observatory, Tel Aviv University . ... Radioastronomical Institute, University of Bonn . ... Osservatorio Astrofisico di Arcetri . ... Cornell University . ... NRAO . ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_members.shtml -- 12.9 Кб -- 02.10.2012
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95. E-ALFA Memos and Documents
... 2006 Feb 28 . Calibration of ALFA data in LiveData . ... Hoffman, Irwin, Spekkens, Haynes, Giovanelli . 2004 Dec 9 . Inter-scan Overheads for Sequences of Drifts with ALFA . ... Giovanelli, Haynes, Putman, Catinella . ... The ALFA Fixed Azimuth Drift Observing Mode . Haynes, Giovanelli, and A1946 & A1963 Teams . ... Parallactic angle and optimum ALFA rotation for drift scanning . ... E-ALFA backend requirements . E-ALFA Consortium . ... See also the General Memos page . ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_memos.shtml -- 5.2 Кб -- 02.10.2012
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96. E-ALFA Papers
Galaxy Zoo and ALFALFA: Atomic Gas and the Regulation of Star Formation in Barred Disc Galaxies. Masters K. L., Nichol R. C., Haynes M. P., Lintott C., Simmons B., Skibba R., Bamford S., Giovanelli R., Schawinski K., 2012, submitted. The Arecibo Legacy Fast ALFA Survey: The Galaxy Population Detected by ALFALFA. ... ADS Bibcode: 2012AJ.. ... The Arecibo Galaxy Environment Survey: II. ... Papers from Galaxy Evolution through the Neutral Hydrogen Window , Arecibo, 1-3 February, 2008. ...
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Ссылки http://www.naic.edu/alfa/ealfa/ealfa_papers.shtml -- 35.6 Кб -- 02.10.2012
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97. First ALFA Extragalactic HI Consortium Meeting (March 14 17, 2003)
. Summary & Conclusions of the Meeting . Final Program, with links to available talks . Workshop Participants . Summary talk given to the G-ALFA meeting . White Paper Working Groups . Meeting Minutes . Workshop Photo - small (100 kb); large (2.4 Mb) . Last updated: Friday, 12-May-2006 16:52:40 AST . R. Minchin . [NAIC] [Astro Home] [Staff] [Observing] [Receivers] [ALFA] [RFI] [Data] [Memos] [Publications] [Calendar] [Contacts] .
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Ссылки http://www.naic.edu/alfa/ealfa/meeting1/ -- 3.9 Кб -- 03.02.2013
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98. Minutes of the First EALFA Consortium Workshop
... The minutes reflect as closely as possible what actually happened, but because they have been produced from written notes of the proceedings, they are intended to provide a summary, not a transcript. ... German Cortes (on telecon from Ithaca) and Desh Desphande (NAIC) . PDF . ... HTML PDF PPT . ... Lisa Wray (NAIC) . ... The WAPP: The Dedicated Receiver for ALFA . ... First results from a Pilot Fast Mapping Survey . ... HTML PDF . General Introduction and Consortium Guidelines . ... PDF PPT . ...
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Ссылки http://www.naic.edu/alfa/ealfa/meeting1/minutes/ -- 8.9 Кб -- 04.02.2013
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99. Pilot Fast Mapping Survey
Next: Jodrell Virgo Survey Up: Minutes of the 1st Previous: Survey Simulations . ... Drift mode: 12s/beam . ... Slow" OTF 6s/beam . ... Fast" OTF, RA-Dec, 3s/beam (drive in RA, step in Dec) . ... Fast" OTF, Dec-RA, 3s/beam (scan in DEC, step in RA) Setup and preliminary analysis: . ... Also look at power spectrum to look for harmonics in baselines: nothing apparent . ... baselines flat . ... Map sensitivity and baseline quality independent of mapping technique when you scan faster than the drift rate. ...
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Ссылки http://www.naic.edu/alfa/ealfa/meeting1/minutes/ALFALFAsprouts.html -- 7.2 Кб -- 08.05.2006
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100. ALFA Front End Construction
Next: The IF/LO System Up: Minutes of the 1st Previous: Front End Optics . ... The NAIC effort includes: antenna controls, IF/LO system, backend(s), data acquisition and archiving . ... Backends (hardware and software) [first set of 100 MHz WAPPS, now have 4; need 7 or possibly 8, thought to expand to 200 MHz but not current priority] . ... Data-reduction software will be developed entirely by the respective consortia and will be made available to AO and users ALFA will be maintained by NAIC. ...
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Ссылки http://www.naic.edu/alfa/ealfa/meeting1/minutes/construction.html -- 7.7 Кб -- 08.05.2006
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