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Proposal Identification No.:

A2013

Date Received:

2004-Oct-01 13:16:31

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 16 Hours

Wideband Dynamic Spectroscopy of Coherent Radio Bursts on AD Leo

We request radio observations to form the core of our multi-wavelength observing campaign of the red dwarf flare star AD Leo. We prop ose to use the Arecib o observatory to obtain wideband dynamic sp ectroscopy of coherent radio bursts with unprecedented time resolution and sensitivity. Recent observations of AD Leo with Arecib o reveal complex structures drifting in frequency and time, and allow detailed investigation of burst prop erties for the first time. Such observations seem to favor plasma emission from a b eam of electrons propagating through the corona. The combination of Arecib o observations with optical photometry and cm-wavelength recordings, means that we can investigate the relationship b etween the extreme radio bursts, which require a coherent plasma physics pro cess, and the role of energetic particles in pro ducing white-light flaring and higher frequency radio flares.

Name Rachel A Osten

Institution NRAO

E-mail rosten@nrao.edu

Phone (434) 296-0259

Student no

Service Observing Request

Remot e Observing Request

X

None All of the observing run. Part of the observing run. Queue Observing

X

No Maybe Yes

Instrument Setup
L-wide Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
1


Frequency Ranges Planned
1350-1730 This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST. This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

2