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Proposal Identification No.:

A2215

Date Received:

2006-Feb-01 15:35:18

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Extragalactic 20 Hours

ALFALFA Follow­up: Enigmatic Virgo Clouds

The ALFALFA survey has detected several HI cloud complexes without optical counterparts in the periphery of the Virgo cluster, near the outer boundary of the hot X-ray emitting gas. The extensive HI distribution, high Virgocentric velocity, and possible connection to nearby Virgo spirals suggests that these may be dramatic examples of galaxy harassment, possibly combined with ram pressure stripping. To complement the ALFALFA survey observations, we request here a small amount of telescope time with LBW designed to corroborate the ALFALFA findings.

Name riccardo giovanelli

Institution cornell university

E-mail riccardo@astro.cornell.edu

Phone 607-255-6505

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 Frequency Ranges Planned

1