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Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies
NSF
About This Grant
Stars form out of clouds of gas found in galaxies. Most of this gas is in the form of cold atoms of hydrogen, but before stars can form, this gas must undergo several chemical and physical processes that are poorly understood. The investigators leading this proposal will analyze data from both the NSF-funded Green Bank Telescope (GBT) and the Atacama Large Millimeter Array (ALMA), which can be used to measure the amounts of hydrogen gas in a broad sample of galaxies. They will use this to test how the depletion timescales of these gas reservoirs depend on other measured galaxy properties, placing important constraints on the growth of galaxies. At the same time, they will train undergraduate researchers in the techniques of radio astronomy. This program seeks to understand the differences in atomic hydrogen (HI) depletion times using the SDSS-IV’s Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) and HI-MaNGA (21cm follow-up for MaNGA) galaxy surveys to search for evidence of systematic variations due to (1) ionization/heating sources, (2) fractions of diffuse versus dense HI, and (3) internal motions (e.g., velocity dispersion and bulk non-rotational flows), all of which may alter the efficiency with which HI is processed. The investigators will add new data from the GBT and ALMA to quantify the molecular hydrogen (H2) fraction for a subset of galaxies to probe whether long HI depletion times are driven by inefficient H2 formation from HI or inefficient formation of stars out of H2. In parallel with these efforts, the investigator will use the GBT to fully complete the HI-MaNGA survey, improving its legacy value for the astronomical community. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
Grant Summary
Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies is a NSF grant providing up to $145K for university, nonprofit, small business. Applications are due 2028-08-31 (open). Check eligibility and apply with FindGrants.
Focus Areas
Eligibility
How to Apply
Up to $145K
2028-08-31
- 1Confirm your organization is eligible for Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies from NSF, checking organization type, location, and any population or project requirements.
- 2Gather the required documents and information, including your organization details, project plan, and budget figures.
- 3Draft your application narrative and budget addressing the funder's priorities and review criteria. FindGrants can draft each section for you to review and edit.
- 4Review every section against the requirements checklist, then export a submission-ready application pack and submit it to NSF before the deadline.
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Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies: Frequently Asked Questions
Who is eligible for the Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies?
Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies is offered by NSF and is generally open to university, nonprofit, small business. It is open to organizations nationwide unless the funder specifies otherwise. Review the specific eligibility terms before applying, since funders set their own requirements around organization type, location, and the population or project being served.
How much funding does the Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies provide?
Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies provides up to $145K per award from NSF. Actual award sizes depend on the scope of your project, available program funds, and the number of applicants, so build a budget that reflects realistic, allowable costs rather than the maximum figure.
When is the Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies deadline?
Applications for Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies are due 2028-08-31 (open). Because deadlines can change, verify the date with the funder, NSF, and give yourself enough time to prepare a complete, competitive application before the close date.
How do you apply for the Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies?
To apply for Collaborative Research: Understanding the extreme diversity of atomic hydrogen depletion times in galaxies, confirm your eligibility, gather the required documents, and prepare a narrative and budget that address the funder's priorities. FindGrants guides you step by step and can draft each section, then exports a submission-ready application pack for this grant from NSF.