transient science with the allen telescope array
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Transient Science with the Allen Telescope Array. Geoff Bower Berkeley. Allen Telescope Array. Large N design 350 x 6.1m antennas Sensitivity of the VLA Continuous frequency coverage 0.5 to 11.2 GHz Wide field of view 3 degrees at 1 GHz Excellent survey instrument: 17x FOV of VLA

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allen telescope array
Allen Telescope Array
  • Large N design
    • 350 x 6.1m antennas
    • Sensitivity of the VLA
  • Continuous frequency coverage
    • 0.5 to 11.2 GHz
  • Wide field of view
    • 3 degrees at 1 GHz
    • Excellent survey instrument: 17x FOV of VLA
  • Simultaneous observing with multiple backends
    • Correlator at 2 frequencies
    • 32 Phased array beams at 4 frequencies
  • Joint project of UC Berkeley/SETI Inst.
  • Prototype for US SKA proposal
transient science with the ata
Targeted Monitoring

Exploits multiple beams

Can be done simultaneously with other science

Pulsars

Gamma-ray burst afterglows

Black holes

Supernovae

Intraday variability

Your Favorite Object Here

Blind Surveys

Exploit survey speed

Orphan GRB afterglows

New Radio Supernovae

Tidally disrupted stars around Massive BHs

Stellar radio emission

The “Twinkling” Radio Sky

Something New!

Transient Science with the ATA
radio transient source counts
Radio Transient Source Counts

ATA-350

40 hours

SKA

4 hours

ata transient surveys
FiGSS: Five GHz Sky Survey (ATA-42)

5 GHz

1 mJy rms

104 square degrees/6 months

Deep Survey (ATA-350)

5 GHz

50 microJy rms

20 square degrees/day

All Sky Low Frequency Survey (ATA-350)

700 MHz

250 microJy rms

104 square degrees/day

Long Period Pulsar/Transient Survey (ATA-42)

Any frequency

10 msec – 1000 sec

Targeted: Galactic Center, Globular Cluster, Andromeda

ATA Transient Surveys
vla archive transient survey
VLA Archive Transient Survey
  • 10 years
  • 20 epochs
  • 5 GHz
  • 20 microJansky rms/epoch
  • 80 sources
    • 20 suitable for transient study
technical scientific issues
Technical & Scientific Issues
  • Wide field imaging
  • Automated imaging
  • Multiwavelength follow-up & simultaneity
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