We propose to investigate the behavior of STARS and gas in the central regions of galaxies, where the dynamics is dominated by a supermassive black hole. The specific projects include: (i) explore…

Ended Grant For Research Awarded Last action

Contract number
NNX14AM24G
Awardee
Awarding agency
Obligated
$477,768

Award facts

Contract value 100% obligated
$477,767.54 Current and potential, with all options
Completion date 100% complete
Current and potential, with all options
NAICS code
Not on record
Set-aside
No set-aside
Competition
Full and Open Competition · 0 offers Basic Research
Pricing
Other
Place of performance
Princeton, NJ 08540, USA

Award details come from SAM.gov/FPDS.

Transactions

Action Obligated Date
Funding Only Action 4 -$0
Funding Only Action 3 $163,596
Funding Only Action 2 $159,174
Other Administrative Action 1 $54,998
Original award $100,000

Description

As the agency reported it.

We propose to investigate the behavior of STARS and gas in the central regions of galaxies, where the dynamics is dominated by a supermassive black hole. The specific projects include: (i) explore novel orbit integrators for the gravitational n-body problem, which may allow much larger timesteps than the conventional leapfrog or hermite integrators; (II) investigate the behavior of warped accretion disks, believed to be common constituents of active galactic nuclei, where the self-gravity of the disk, viscous stresses, and the lense-thirring effect all play important roles in determining the disk shape; (III) develop an n-wire code which averages over orbital phase by representing each star as an eccentric wire, and use this to study the timescale and outcome of resonant relaxation of a stellar system near a black hole, the secular stability of such systems, and the eccentric stellar disk at the center of M31; (IV) implement an n-disk code which represents each star as an annular disk by averaging over orbital phase and periapsis direction, and use this to model the complex structure of the young, massive STARS between 0.1 and 0.5 PC from the galactic center---variously interpreted as one warped disk, two disks, dissolving disks, etc.---as the result of resonant relaxation between a young stellar disk and the surrounding old stellar cluster.

Quick answers

Who was awarded contract NNX14AM24G?

NNX14AM24G was awarded to Institute For Advanced Study - Louis Bamberger & MRS Felix Fuld Foundation by Shared Services Center (National Aeronautics and Space Administration) on July 2, 2014.

How much is contract NNX14AM24G worth?

The government has obligated $477,768 on NNX14AM24G.

Was contract NNX14AM24G competed?

The extent of competition for NNX14AM24G was full and open competition. The government received 0 offers.

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