NSF award 2511257 · Indiana University

Collaborative Research: Explaining the Orbits of Eccentric Warm Jupiters

Final report due

29 December 2028

in 803 days · The award ends on 31 August 2028.

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PAPPG 24-1: “at least 45 days prior to the end date”
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award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 29 December 2028.

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Award card

Award number: 2511257
Period of support: 1 Sep 2025 – 31 Aug 2028
Amount: $300,202
Awardee: Indiana University, Bloomington, IN
Program: PLANETARY ASTRONOMY
Directorate: MPS

Abstract

The orbits of planetary systems hold clues about their origins. Gas giants like Jupiter are thought to form on circular orbits far from stars. However, exoplanets with large eccentricity abound, and the “hot Jupiter” class have orbital periods of just a few days. In some cases, extremely eccentric planets may approach their stars, where tidal forces deform them, dissipate energy, and ultimately circularize their…

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