Proposing for VLA and VLBA Time Twelfth Synthesis Imaging Workshop Lorant Sjouwerman 2010 June 8-15 National Radio Astronomy Observatory, Socorro NM Outline NRAO VLA NRAO VLBA Proposal writing Generic Science goal Requirements Other considerations VLA and VLBA (and GBT)
NRAO call for proposals VLA configurations and VL(B)A dynamic scheduling Proposal Submission Tool (PST) Regular proposal submission process Other Proposal Types and Routes Proposing for VLA and VLBA Time - Webinar, 2012 June 11 2 Generic: science goal Start with a scientific idea and target list Draft a scientific justification: what and why Write to astrophysically-literate but non-expert reviewers Give science context and motivation Pose specific science questions State specific science goals Describe target selection criteria Say how the proposed observations will Answer the science questions Achieve the science goals Be quantitative !
Proposing for VLA and VLBA Time - Webinar, 2012 June 11 3 Generic: requirements Draft a technical justification: how Angular resolution (longest projected baseline required) Largest angular scale (shortest projected baseline required) (redshifted) Observing frequency, Stokes parameters (polarization) Spectral resolution and bandwidth coverage, e.g., lineof-sight velocity Elevation limits and snapshot or full uv-coverage Sensitivity: use (online) sensitivity calculators! In the image (dynamic range and signal to noise ratio on target) On a baseline (for calibration, self-calibration) Be quantitative ! Flexibility, or what are the possible trade-offs? Proposing for VLA and VLBA Time - Webinar, 2012 June 11 4 Generic: other considerations
Enough field of view? Primary beam attenuation; single field or mosaic? Time and bandwidth smearing affect sources at the edge of the field Nearby calibrators? Need to find better ones, are there other lists to be used? Optimal timeframes? Time of day (night versus day observing, maintenance/RFI) Season (summer, winter) Is the required configuration observing mode offered for this cycle? Solar activity, planet positions, other.. Data reduction plan for large data sets Cover sheets: 5 Proposing for VLA and VLBA Time - Webinar, 2012 June 11
Consult collaborators, abstract, student support VL(B)A (and GBT): Call for Proposals See NRAO Call for Proposals at https://science.nrao.edu/enews Proposal deadlines at 5pm Eastern Time on 1st of February, for observing during about July through December 1st of August , for observing during about January through June Call for proposals issued about 3-4 weeks before each deadline Occasional out-of-cycle calls for special opportunities Everyone can apply for NRAO time (open skies policy) If you are interested in applying for time Read the call for proposals! It contains the latest updates; things do change Planned capabilities offered Special opportunities offered Proposing for VLA and VLBA Time - Webinar, 2012 June 11 6 VLA Configuration and dynamic
scheduling Upcoming VLA configurations at https://science.nrao.edu/facilities/evla/proposing/configpropde adlines This1st of August: D, DnC, C (smaller configurations, up to 1 or 3 km) 12A and 12B: 13A daytime: late LST (R.A.) Both VLA and VLBA use dynamic scheduling Range of starting times Calibration and overhead included in your scheduling blocks Include calibration and overhead in the observing time request Depending on the science this can be anywhere from 7 for VLA and VLBA Time - Webinar, 2012 June 11 20Proposing to >50% Proposal Submission Tool (PST) Prepare a PDF file using any editor to include
The scientific and technical justification (i.e., what, why and how) The combined PDF file should meet the requirements: Content, minimum font size, maximum number of pages Up to 4 pages for a regular proposal (total, including figures, etc.) Up to10 pages for a large proposal (~200 or more NRAO hours) Access the NRAO PST at https://my.nrao.edu Register and invite co-authors to register (required!) Select VLA, VLBA, GBT (and further select any joint combination) Fill out the cover sheets and abstract, and attach the PDF file Numbers (etc.) in cover and justification text should match! InclusionProposing of a NRAO staff co-author is optional
for VLA and VLBA Time - Webinar, 2012 Junebut 11 may be 8 VLA/VLBA Proposals and Students Consider submitting a deadline early Use referee feedback to prepare, re-submit improved proposal Are the proposed observations for a thesis ? If yes, amend your user profile at https://my.nrao.edu Add a Plan of Dissertation: ~ timeline + NRAO resources Update graduation year Is the student eligible for funding ? https://science.nrao.edu/opportunities/student-programs /sos
US universities and colleges and for Regular or Large proposals Apply via NRAO PST at the submission stage (extra work: start early!) Donate thesis copies to NRAO 9 Proposing for VLA and VLBA Time - Webinar, 2012 June 11 Regular proposal submission process Received for deadlines 1 Feb, 1 Aug for semesters st
st (year)B, (year+1)A Classified by scientific categories Sent to categorys scientific review panel and NRAO technical reviewers Referees return ratings and comments Ratings and comments sent to Proposal Selection Committee (PSC) 5-10 representatives of the community 3-5 representatives of NRAO PSC meets around early April and October PSC results emailed to proposers around 1st June and1st December Approved projects will appear in the Observation Preparation Tool Details at 10 Proposing for VLA and VLBA Time - Webinar, 2012 June 11 https://science.nrao.edu/observing/proposal-types/timealloc Other Proposal Types and Routes
VLA/VLBA Director's Discretionary Time (a.k.a. rapid response science) Exploratory or filler: e.g., quick follow-up of recent discovery Target of opportunity: e.g., unpredicted phenomenon https://science.nrao.edu/observing/proposal-types/director sdiscretionarytime NOT for a missed deadline Joint proposal routes, not through PST Chandra/VLA/VLBA http://cxc.harvard.edu Fermi/VLA/VLBA Chandra http://fermi.gsfc.nasa.gov/ssc Fermi Proposing for VLA and VLBA Time - Webinar, 2012 June 11 11 Most useful web pages for help General NRAO
https://science.nrao.edu Specific NRAO instrument https://science.nrao.edu/facilities Helpdesk https://help.nrao.edu (Google, etc) Proposing for VLA and VLBA Time - Webinar, 2012 June 11 12
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