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National Radio Astronomy Observatory (NRAO) (EXT-025)

Summary 🟡 ✓

  • Owner Unit: External partner organization
  • Sub-unit: NSF National Radio Astronomy Observatory (AUI)
  • Content Type: partnership
  • Campus/Location: Off-campus (NRAO user facilities: VLA, VLBA, GBT)
  • Last Verified: August 19, 2026

Organization

The National Radio Astronomy Observatory is a U.S. National Science Foundation facility for radio astronomy. Public user-facility pages describe proposal access to instruments including the Very Large Array (VLA), Very Long Baseline Array (VLBA), and Green Bank Telescope (GBT). Telescope time is allocated by NRAO, not DePaul.

Access status

  • Level: yellow (Negotiated Access)
  • Rationale: NRAO telescope time is allocated by NSF user-facility proposal; DePaul researchers coordinate as external users, not via campus checkout.
  • Access URL: science.nrao.edu
  • Contact name: Office of Research Services / Physics and Astrophysics
  • Contact email: ors@depaul.edu
  • Verification date: 2026-08-19
  • Source URLs:
  • science.nrao.edu
  • public.nrao.edu

Relationship to DePaul

DePaul astrophysics faculty use NRAO telescopes as external users. Anuj Sarma’s research page names VLA, VLBA, and GBT for observational studies of star-forming regions. The CSH Physics research page lists recent Sarma papers on methanol and water masers (including collaborations with NRAO astronomer Emmanuel Momjian). URC award GRA-506 (“Enlisting Masers to Understand High Mass Star Formation”) is topical to this radio-astronomy program.

Do not treat NRAO antennas as DePaul inventory.

Known collaborations & connections

  • Anuj Sarma — documented NRAO instrument use (VLA, VLBA, GBT) and ongoing maser/Zeeman publications listed on the CSH Physics research page
  • Physics & Astrophysics Laboratories — home department for DePaul radio-astronomy users
  • Related NASA infrared archive (distinct facility): EXT-026

Collaborative documents

Document type Scope Parties Status Source
User-facility telescope time VLA / VLBA / GBT proposal access DePaul PI ↔ NRAO Named on Sarma research page sources/inbox/2026-08-19-astro-user-facilities/source_snapshot/captured/sarma-condor-research.html (depaul/SRC-001578)
Publication record Maser / Zeeman observing papers Sarma ↔ NRAO collaborators Listed on CSH Physics research page (2019–2024) sources/inbox/2026-08-19-astro-user-facilities/source_snapshot/captured/csh-physics-research.html (depaul/SRC-001585)

Verification

  • Status: confirmed (âś“)
  • Confidence: 88/100
  • Rationale: DePaul faculty research page names NRAO instruments; CSH research listing corroborates ongoing radio-astronomy publications.
  • Last verified: 2026-08-19
  • Evidence:
  • Sarma research page names VLA, VLBA, and GBT — sources/inbox/2026-08-19-astro-user-facilities/source_snapshot/captured/sarma-condor-research.html (vaulted as depaul/SRC-001578)
  • CSH Physics research page lists 2019–2024 Sarma maser/Zeeman papers — sources/inbox/2026-08-19-astro-user-facilities/source_snapshot/captured/csh-physics-research.html (depaul/SRC-001585)
  • NRAO public/science sites — sources/inbox/2026-08-19-astro-user-facilities/source_snapshot/captured/nrao-public.html (depaul/SRC-001581); sources/inbox/2026-08-19-astro-user-facilities/source_snapshot/captured/nrao-science.html (depaul/SRC-001582)

Equipment

NSF radio user facilities (VLA, VLBA, GBT). Not DePaul inventory.

Last verified: July 29, 2026.

Contacts (resource-level)

People & contacts

Named contacts from the people registry when publicly documented.

Documented Relationships

External radio user facilities for DePaul star-formation / maser research.

Linked Relationship IDs

Linked publications

  • H2O Maser Observations in W3 (OH): A comparison of Two Epochs (thesis) — VIA (PUB-117)
  • VLBA Observations of the Zeeman Effect in H2O Masers in OH 43.8-0.1 — DOI (PUB-140)
  • Very Large Array HI Zeeman Observations of NGC 1275 (Perseus A) — DOI (PUB-141)
  • Discovery of the Zeeman Effect in the 36 and 44 GHz Class I Methanol Maser Lines with the EVLA — DOI (PUB-152)
  • Discovery of the Zeeman Effect in the 44 GHz Class I Methanol Maser Line — DOI (PUB-153)
  • Observations of magnetic fields toward the star forming region S88B — DOI (PUB-154)
  • Parsec-scale magnetic fields in Arp 220 — DOI (PUB-155)
  • Imaging of the CCS 22.3 GHz Emission in the Taurus Molecular Cloud Complex — DOI (PUB-156)
  • Water Maser Zeeman Splitting in the Ionized Jet IRAS 19035+0641 A — DOI (PUB-157)
  • Radio Continuum and Water Maser Observations of the High-mass Protostar IRAS 19035+0641 A — DOI (PUB-158)
  • Comparison of Two Epochs of the Zeeman Effect in the 44 GHz Class I Methanol Maser Line in OMC-2 — DOI (PUB-159)
  • A Curious Case of Circular Polarization in the 25 GHz Methanol Maser Line toward OMC-1 — DOI (PUB-160)
  • Magnetic field measurement in TMC-1C using 22.3 GHz CCS Zeeman splitting — DOI (PUB-169)

Documented connections

Generated from publication↔resource and person↔publication registries. Superscript numbers open Sources below. Multiple sources on one claim are grouped as 1,4. Grant links are listed on publication and grant pages.

Publications

People on linked publications

Sources

  1. Observations were made using the Very Long Baseline Array (VLBA) radio telescope at two epochs. Archived source retained by Resource Map maintainers. View current source
  2. Title names VLBA observations. Archived source retained by Resource Map maintainers. View current source
  3. Title names Very Large Array HI Zeeman observations. Archived source retained by Resource Map maintainers. View current source
  4. The observations were carried out with the Expanded Very Large Array (EVLA). Archived source retained by Resource Map maintainers. View current source
  5. Observations carried out with 22 antennas of the Expanded Very Large Array toward OMC-2. Archived source retained by Resource Map maintainers. View current source
  6. observations of the high mass star forming region S88B taken with the VLA. Archived source retained by Resource Map maintainers. View current source
  7. We used Arecibo Observatory, the Green Bank Telescope, and the Very Long Baseline Array to perform dual-polarization observations of OH maser lines in the merging galaxy Arp 220. Archived source retained by Resource Map maintainers. View current source
  8. Expanded Very Large Array 22.3 GHz observations of three dense molecular cores TMC-1, TMC-1C, and L1521B. Archived source retained by Resource Map maintainers. View current source
  9. high resolution VLA K-band (18-26.5 GHz) observations toward IRAS 19035+0641 A. Archived source retained by Resource Map maintainers. View current source
  10. We present Very Large Array 1.3 cm continuum and 22.2 GHz H2O maser observations of the high-mass protostellar object IRAS 19035+0641 A. Archived source retained by Resource Map maintainers. View current source
  11. The observations were carried out with the Very Large Array. Archived source retained by Resource Map maintainers. View current source
  12. The feature in Stokes V is detected in two observations taken eight years apart with the Very Large Array. Archived source retained by Resource Map maintainers. View current source
  13. Radio interferometric observations of CCS 22.3 GHz emission, from the starless core TMC-1C, have been carried out with the Karl G. Jansky Very Large Array. Archived source retained by Resource Map maintainers. View current source
  14. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source
  15. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source
  16. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source
  17. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source
  18. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source
  19. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source
  20. gazetteer hit in OA full text. Archived source retained by Resource Map maintainers. View current source

Notes

Promoted 2026-08-19. Sub-instruments (VLA, VLBA, GBT) are named in DePaul evidence and kept on this single NRAO resource rather than separate EXT IDs.