EDGE

Revision as of 11:24, 15 July 2015

Welcome to the collaborative wiki of EDGE (Extragalactic Database for Galaxy Evolution) and CALIFA surveys. All of the secure access is now on our EDGE twiki

Survey Descriptions

Milestones

• Dec, 2014 : E-array CARMA observations are complete (177 galaxies).
• April 3, 2015: D-array CARMA observations are complete (125 galaxies).
• April 9, 2015: First face-to-face meeting at Maryland.
• May 11, 2015: The 2nd version (v2) of CO data cubes are released, which uses a smoothed mask based on the original cubes (v1) as a deconvolution region.

Telecon Notes

• 2015, May 12: Preparing the MoU for EDGE and CALIFA collaborations.
• 2015, May 19: Discussing the cross-correlation results to refine the CALIFA astrometry. Comparing flux of v2 vs v1 data cubes: v2 recovers slightly more flux than v1. For survey publication, we only need the total flux from moment-0 maps, while for comparison with archival data, we need to convolve it with the beam of single dish telescope.
• 2015, May 26: MoU is under review by CALIFA board members. Considering velocity range as parameter to make moment-0 mask. Discussing depletion time vs metallicity plot. The metallicity is calculated from emission lines maps using prescriptions by Kewley & Dopita (2002). So far, no correlation with metallicity was seen. The depletion time looks constant with a value of ~ 1 Gyr.

Meetings

Outcomes from April 2015 meeting at Maryland:

Papers:

• Survey paper, science result will be analysis of t_dep vs. Z, maybe multi-parameter relations (Alberto)
• Study of 12CO/13CO ratios (Yixian/Tony) 8-12M
• T_dep in centers (Dyas/Leo) 12M
• Why do not all galaxies have CO? (Leo)
• Dispersion in KS Law (Lucas/Helmut/Glenn) 12M
• NGC7738 "EDGE test concept" observations (Lucas/Helmut) 6-8M
• Comparison of CO/Ha point-by-point velocities (Glenn)
• T_dep vs. t_dyn (Erik) 6-8M
• Quantitative CO structure: radial parameters, asymmetries, Gini, flocculent, arms etc (Stuart) 12M
• CO concentrations in centers and links with bar (Karin)
• Kinematic misalignments (Glenn)
• SFE today vs. SFH/Moster Law (Erik)
• Fraction of "diffuse" CO gas (Eve/Adam)
• AGN feeding in EDGE (Stuart/Richard)
• Flux recovery for interferometer (Yixian/Tony)
• T_dep vs. BPT: somebody should try the plot to see if this is interesting
• "ISM predictor" for ISM mass subtraction: longer term

Tasks

• Contacts in CALIFA for specialized data products: SFHs, Sigma_stars, etc (Glenn)
• Low/high ionization velocity fields from Gandalf fitting/Ha only velocities (Glenn)
• Galaxy parameters from surface photometry fitting: PA, incl, etc (Glenn)
• Improving CLEANing and masking with rotation curves/Ha velocity fields (Tony/Alberto/Stuart/Peter)
• Mm-continuum images using full passband for EDGE need to be created (Tony)
• Calibrated unWISE data (Karin)
• E array only data: mostly non-detections, but it'd be useful to have the limits/do stacking (Tony)
• Single dish CO 1-0 measurements to assess flux recovery (Helmut)
• Integrated CO luminosities with errors (?)
• Metallicity of gas: need to look at CALIFA strong line results, produce for a few calibrations (?)
• CO rotation curves (Peter/Alberto/Tony)
• Über-database on 1" pixels for cross-correlations (Adam/Erik)

References

• Alberto's EDGE home page
  • A local copy of all (615 GB) EDGE data is on fornax:/fornax6/EDGE (copied April 10, 2015)
• Tony's EDGE page
• The new (soon to be) secure twiki for EDGE/Califa
• The now deprecated twiki for EDGE and CALIFA
• We have a mailing list on Google Groups, where you can also subscribe
• Pictures: April 2015 meeting