NRAO Science Forums

Here is the update that we just sent the SSG in advance of the VLASS phone-con this afternoon. Let us know if you have corrections or other thoughts that we should address at the meeting. Gordon & Jackie ############ The EWG hasn't specifically identified trip points for the proposed 3 tier plan...

You can now see all of the draft survey definitions (ours, Galactic, and Transients) at: https://safe.nrao.edu/wiki/pub/JVLA/ExtragalacticWorkingGroup/vlass-ewg.032414.pdf https://safe.nrao.edu/wiki/pub/JVLA/GalacticWorkingGroup/VLASS_Galactic_WG.pdf https://safe.nrao.edu/wiki/pub/JVLA/TransientsVar...

DEEP VLASS component range of possibilities: Min Area = 10 sq. deg (Jarvis whitepaper) Max Area = 30 sq. deg (White et al. VLA proposal) Max Depth = 1.5uJy (Jarvis whitepaper) Min Depth = 4uJy (White et al. VLA proposal) Multi-epoch: Yes. The required exposure times greatly exceed the single-epoch v...

WIDE VLASS component range of possibilities: Min Area = 3603 sq. deg (DES+HSC) Max Area = 13055 sq. deg (LSST+DES+HSC) (see below for detailed notes) Min Depth = 50uJy (3x FIRST) Max Depth = 30uJy (5xFIRST) Min Exp Time = 30s Max Exp Time = 90s Multi-epoch: Up for discussion. These times are such th...

ALL-SKY VLASS component range of possibilities: Area = ~34000 sq. deg (dec>-40) Depth = ~100uJy (up for discussion) Bandpass: S (default, but L or S+L up for discussion) Multi-epoch: only if desired and overhead is acceptable, not needed Array : B, A, combination, or custom Polarization: Yes (defaul...

Reposting from Google Group in case people missed it there. -- Gordon ##### Now that a number of new people have signed up for the mailing list, this is a good time to try to get some much needed feedback on a number of questions. If you weren't at the VLASS meeting at AAS and/or haven't read the wh...

Hi all, As Gordon explained in his last email, a VLASS-type survey is still on the table, and they have set up a "Science working group" to hash out more of the details. This is currently split into several area-specific working groups, one of which is the Extragalactic working group (EWG)...

The extragalactic group is encouraging discussions around the idea of merging the whitepaper led by Richards and the whitepaper led by Jarvis into a single VLASS proposal. Possibilities include 1) 2 tiers: medium-wide (~5k-13k sq deg @ 31-50uJy) + deep (10 sq deg @ 1.5uJy) or 2) 3 tiers: wide (full ...