We propose moderately deep galex observations (6 ksec) of eighteen gas-stripped virgo cluster spiral galaxies. These observations will give a complete sample of strongly stripped, highly inclined…
Ended Grant For Research Awarded Last action
- Contract number
- NNX12AR41G
- Awardee
-
Bennington College Corporation UEI N3UTNKGNEZK9
- Awarding agency
-
Shared Services Center
National Aeronautics and Space Administration
- Obligated
- $0
Award facts
- Contract value
- $0.00 Current and potential, with all options
- Completion date 100% complete
- Current and potential, with all options
- Funding agency
- Headquarters National Aeronautics and Space Administration
- NAICS code
- Not on record
- Set-aside
- No set-aside
- Competition
- Full and Open Competition · 0 offers Basic Research
- Pricing
- Other
- Place of performance
- Bennington, VT 05201, USA
Award details come from SAM.gov/FPDS.
Transactions
| Action | Obligated | Date |
|---|---|---|
| Funding Only Action | -$20,566 | |
| Other Administrative Action | $0 | |
| Original award | $20,566 |
Description
We propose moderately deep galex observations (6 ksec) of eighteen gas-stripped virgo cluster spiral galaxies. These observations will give a complete sample of strongly stripped, highly inclined (I>70 degrees) virgo spirals brighter than magnitude 16. Optical imaging and HI mapping show that these spirals all lack dust and gas in their outer disks, presumably due to ICM-ISM interactions. Galex UV observations will provide critical information on how these interactions have affected recent star formation in the galaxies. The galex FUV and NUV data, particularly when combined with our existing multi-wavelength data set including broadband optical, H-alpha, and spitzer IR imaging, and optical spectroscopy, will strongly constrain when a galaxy was stripped, how rapidly IT was stripped, and the strength of any starburst at the time of stripping. The UV light changes dramatically over timescales of 0-500 MYR, which are the same timescales over which ICM-ISM interactions take place, making IT possible to constrain the most recent effects of the cluster environment on galaxy evolution and if these effects can effectively drive the transformation of spirals into S0S. The deep imaging we propose will enable US to detect age gradients in the stellar populations of the outer disks, which will tell US how rapidly the galaxies are stripped. The cluster locations of recently stripped galaxies and the timescales over which the galaxies are stripped will allow US to constrain the relative importance of stripping that occurs during cluster core passages and stripping which occurs when galaxies encounter an ICM shock outside the core. Ten of these galaxies have already been imaged with galex, and we are requesting deep observations of these galaxies, in addition to time to image the remaining eight to the same depth.
Quick answers
Who was awarded contract NNX12AR41G?
NNX12AR41G was awarded to Bennington College Corporation by Shared Services Center (National Aeronautics and Space Administration) on September 21, 2012.
How much is contract NNX12AR41G worth?
The government has obligated $0 on NNX12AR41G.
Which agency awarded contract NNX12AR41G?
Shared Services Center (National Aeronautics and Space Administration) awarded NNX12AR41G, with funding from Headquarters (National Aeronautics and Space Administration).
Was contract NNX12AR41G competed?
The extent of competition for NNX12AR41G was full and open competition. The government received 0 offers.
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