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| June 2009 |
eNews |
Volume 2, Issue 6 |
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The NRAO Expanded Very Large Array near Socorro, New Mexico. |
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Upcoming NRAO Events
- July 12-18: NAIC-NRAO School on Single-Dish Radio Astronomy
- July 21-23: VLBA Astrometry Workshop
- Aug. 3-14: XXVIIth IAU General Assembly
- Sep. 21-24: Assembly, Gas Content and Star Formation History of Galaxies
- Oct. 29-31: SKA 2009 Science and Engineering Meeting
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| 2009 Jansky Lectureship Awarded: The National Radio Astronomy Observatory is pleased to announce that the 2009 Karl G. Jansky Lectureship has been awarded to Dr. Anthony C. S. Readhead, Director of the Owens Valley Radio Observatory, Caltech. The Jansky Lectureship is an honor established by the trustees of Associated Universities, Inc., to recognize outstanding contributions to the advancement of radio astronomy... Read more... |
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| The NRAO and the Astro2010 Decadal Survey: With the launch of the Astro2010 Astronomy and Astrophysics Decadal Survey, the NRAO has been assisting the astronomical community in their efforts to determine the major scientific priorities and future instrumentation required for the coming decade... Read more... |
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| ALMA Construction: The first two ALMA antennas were pointed at an astronomical source, Mars, on April 30 and ‘static’ fringes were observed, i.e., software did not control or follow the changes in the fringes as the source followed its diurnal path. Updated ALMA software (v6.1) has now been installed, and on June 12 ‘dynamic’ fringes were obtained, for which computations are continually updated to drive the electronics and track the changes in the fringes as the source treks across the sky... Read more... |
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| Expanded Very Large Array Project Status: Antennas continue to be converted to the Expanded Very Large Array (EVLA) design, and 21 antennas are now used routinely for scientific observations. The conversion of the 22nd EVLA antenna was completed in June. EVLA antennas accounted for 72.3% of all antenna hours used in scientific observations in April 2009... Read more... |
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| EVLA Bandpass Stability: In two VLA proposals with Snezana Stanimirovic (Univ Wisconsin), Carl Heiles (UC-Berkeley), and Ayesha Begum (Univ Wisconsin), we have investigated weak galactic HI lines in the direction of the extragalactic sources AS931 and AB1325. These lines have opacities of several times 0.001... Read more... |
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| Early EVLA Polarimetric Characterization: One of the goals of the EVLA upgrade is to be able to produce polarimetric images that are limited by noise rather than systematics. This can be achieved through stable polarizers and software that accurately handles polarimetric calibration and modeling, including the off-axis EVLA antenna response. The design of the polarizers in the antenna feed varies between the different EVLA observing bands... Read more... |
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Career Opportunities
- Test Scientists - ALMA
- Web Analyst/Developer
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The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Copyright © 2009 Associated Universities, Inc. |
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