Title   Search for flat spectrum mm-loud AGN
Pi     C. Carilli
Time   20 hrs

1.6.4: Name -- Search for flat spectrum mm-loud AGN
    Authors: C. Carilli

2. Science goal: We will search for flat spectrum, mm-loud AGN. The
search can be piggy-backed on the standard pre-observation calibrator
searches using band 3 during normal observations. A follow-up snapshot
survey (1 min/source) will then be done at 220 GHz of 1000 candidate
sources, and at 22 GHz with VLA, to determine the cm to (sub)mm
spectra of the sources.  The search could reveal new population of
faint blazars, IDVs, HFPs, and other types of known sources at more
than 10 times deeper levels that is currently possible (and at higher
frequencies; Corray et al. 1998 AJ 115, 1388; Dellacasa et al. 2001,
A&A Supp), as well as possibly reveal new classes of sources, such as
very young radio jets. These can then be studied further at X- and
Gamma-rays, as well as using mm-VLBI, and standard monitoring
programs.

3. Number of sources: 1000

4. Coordinates:

  4.1. Any

  4.2. Moving target: no

  4.3. Time critical: no

5.  Spatial scales:

  5.1. Angular resolution: any (small configuration preferred at 220
GHz)

  5.2. Range of spatial scales/FOV: any

  5.3. Single dish: no

  5.4. ACA: no

  5.5. Subarrays: no

6. Frequencies:

  6.1. Receiver band: Band 3 -- piggy-back on standard calibrator
                      pre-observation search program
                      Band 6 -- 220 GHz follow-up

  6.2. Lines and Frequencies

  6.3. Spectral Resolution (km/s)

  6.4. Bandwidth or spectral coverage: full

7. Continuum flux density:

  7.1. Typical value:  10 mJy

  7.2. Continuum peak value:

  7.3. Required continuum rms: 100 GHz -- standard sensitivity for
                               calibrator search
                               220 GHz -- 0.1 mJy

  7.4. Dynamic range in image: 1e3

8. Line intensity:

  8.1. Typical value:

  8.2. Required rms per channel:

  8.3. Spectral dynamic range:

9. Polarization: yes

10. Integration time per setting:
  1000 sources at 1min/source at 220 GHz

11. Total integration time for program: 20 hr

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Review Jean Turner: Science case and scope is very good. Will use
initial observations for calibrators at 3mm in piggyback mode (no
cost) to search for candidates for mm-loud AGN, and this project is
the followup. Potential to reveal new populations of AGN.

Strategy technically and scientifically sound.  Integration time is
correct. This project is defined by the parameters of the search,
i.e., the amount of time available. Based on current crop of mm
calibrators, which number at least 50-100 with fluxes of 0.3 Jy and
above, they are very likely to find interesting populations of sources
with their rms of 0.1 mJy/beam in 1 minute.

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Review v2.0:
 
1.6.7 Search for flat spectrum mm-loud AGN (Carilli)

Not revised since DRSP 1.1. Nothing needs to be added to the review
back then, no severe impact through reduction to 50 antennas, no need
for ACA.