NRAO eNews
October 2008 • Vol. 1, Iss. 5
- The Expansion of Supernova Remnant G21.5–0.9: Is PSR J1833–1034 the Youngest Pulsar?
- Discovery of a Small Group Driving the Evolution of an Edge-On Spiral Galaxy
- Cosmic Rays and the Magnetic Field in the Nearby Starburst Galaxy NGC 253
- Neutral Hydrogen Clouds in the M81/M82 Group
- ALMA Project Progress
- North American ALMA Science Center
- The ALMA Spectral Line Catalog
- The Birth and Feedback of Massive Stars, Within and Beyond the Galaxy: The NAASC Science Workshop for 2008
- Current Status
- VLA Configuration Schedule, Proposals, and Scheduling
- VLBA and HSA Proposals and Scheduling
- Global cm VLBI Proposals
- VLA and EVLA Spectral Line Observations Below 1200 MHz
- Status of Observing with the Transition Array
- VLBA Sensitivity Upgrade Project
- First 3mm Science Observations with the GBT and MUSTANG Call for Proposals
- The GBT Dynamic Scheduling System Update
- Progress on the Ka-Band Focal Plane Array for the GBT
- Opportunities for University-Led Technical Development Projects in Green Bank
- New NRAO Website Debuts
- The NRAO at the American Astronomical Society and American Association for the Advancement of Science Meetings
- Call for GBT Shared-Risk MUSTANG Proposals
- Large Proposals to Use NRAO Telescopes
- Chris Carilli Appointed Observatory Chief Scientist
- Eleventh Synthesis Imaging Workshop
- 2008 Grote Reber Medal Awarded to Sandy Weinreb
- NRAO Participates in the BEYA Conference
- NRAO Business Managers Meet in Chile
- NRAO Library News
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NRAO Newsletter • April 2008 • Issue 115
The ALMA Spectral Line Catalog
The “beta” release of the Database for Astronomical Spectroscopy: Splatalogue occurred on February 1 and is available at www.splatalogue.net. The release was made available to the entire astronomical community but with an emphasis on those researchers familiar with the public catalogs available for molecular spectroscopy including the Cologne and JPL Databases, and the Lovas list of detected astronomical transitions. The main purposes of the release were to:
- illustrate the power of the search capabilities of the database over all available line catalogs;
- introduce a new catalog to the community, the Spectral Line Atlas of Interstellar Molecules (SLAIM) which will only be available through Splatalogue;
- provide the community with a complete list of frequencies of H, He and C recombination lines;
- add newly detected transitions to the Lovas list of detected astronomical transitions and
- provide a limited sample of species (~200 out of 650) where the quantum numbers between all 4 catalogs were resolved, provide the line strength and energy levels in all useful astronomical units, and provide the community with an NRAO recommended rest frequency for a molecular transition.
Feedback on these goals have been sent to the ALMA Working Group on Spectral Line Frequencies and updates and corrections are ongoing. Splatalogue was also presented at the 211th AAS meeting in Austin, TX.
We anticipate a “Beta 2” release in June 2008 which will continue the work already started on the resolution and reconciliation of quantum numbers and species between all four catalogs. In the “Beta 2” release, all species will have consistent quantum numbers and the line strengths and energy levels will be available in all useful astronomical units for each transition. In addition, the default search criteria for Splatalogue will be only on NRAO recommended rest frequencies. There will also be additional search criteria and filters available, flexibility in exporting the data from a selected search, template spectra of selected astronomical environments including hot molecular cores and protoplanetary nebulae from cm to mm wavelengths, and a limited functionality to generate synthetic spectra based on the physical conditions of the astronomical environment and the type of telescope used to make the observation, including but not limited to ALMA and the EVLA. Future plans include presenting Splatalogue at the 63rd OSU meeting on Molecular Spectroscopy in June 2008 and the creation of my.splatalogue.net where researchers can save and recall their most used and searched on criteria. Any questions on the form, functionality and use of Splatalogue, please contact Anthony Remijan or Andrew Markwick-Kemper.
Anthony Remijan
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