Stay informed about the newest data and feature releases
202608 Jun
Update SO and add 3 molecules CO, KH, and NO+
Update 1 molecule: SO
and 1 isotopologue 32S16O.
Add 3 molecules: CO, KH, and NO+
and 5 isotopologues: 12C16O, 39K1H, 40K1H, 41K1H, 14N16O+.
Total 45 molecules and 105 isotopologues.
202605 Jun
Count live usage
Add the live usage and downloads number
202618 May
New ExoMolHR release: 42 molecules and 100 isotopologues
A new ExoMolHR release is now available, containing data for 42 molecules and 100 isotopologues.
This release uses the updated file format and has been generated with revised filtering criteria:
energy uncertainty ΔE ≤ 0.05 cm⁻¹,
resolving power R > 100 000.
202615 May
New file format: addition of resolving power R
🔥 IMPORTANT
The ExoMolHR file format has been updated to include the resolving power R.
The quantum number labels have also been revised.
202609 Apr
New API Reference Page Launched
We have introduced a dedicated API Documentation page to facilitate programmatic access to ExoMolHR data.
This new resource provides comprehensive guidance on retrieving master metadata files (JSON), CSV line lists, and partition functions.
It also detailed how to construct deep links into our Spectrum Viewer with custom physical parameters like temperature, intensity thresholds, and spectral ranges.
202613 Mar
Major UI Overhaul and New Features Added!
🔥 IMPORTANT
We are excited to announce a comprehensive update to the ExoMolHR website interface, aimed at enhancing your user experience.
This release introduces several new sections, including dedicated pages for Partition Functions, Quantum Number descriptions, About, Citation, Site Updates, and Contact information.
Explore the new navigation to access data faster and more intuitively!
202510 Oct
Update NH3 and add 2 molecules C3, ScO
Update 1 molecule NH3
and 1 isotopologue 14N1H3.
Add 2 molecules: C3, ScO
and 4 isotopologues: 12C12C13C, 12C13C12C, 12C3, 45Sc16O.
Total 39 molecules and 69 isotopologues.
202526 Sep
Add 4 molecules CaOH, H2CS, N2O, and VO
Add 4 molecules: CaOH, H2CS, N2O, VO
and 2 isotopologues: 40Ca16O1H, 1H212C32S, 14N216O, 51V16O.
Total 37 molecules and 65 isotopologues.
202525 Sep
Update CN, CH4 and add 4 molecules CH+, N2, NiH, and OH
Update 2 molecule: CN, CH4
and 2 isotopologue: 12C14N, 12C1H4.
Add 4 molecules: CH+, N2, NiH, and OH
and 7 isotopologues: 12C1H+, 14N2, 58Ni1H, 58Ni2H, 60Ni1H, 62Ni1H, and 16O1H.
Total 33 molecules and 61 isotopologues.
202505 Feb
ExoMolHR paper has been published! "ExoMolHR: A Relational Database of Empirical High-resolution Molecular Spectra" Zhang et al. 2025
🔥 IMPORTANT
ExoMolHR paper has been published on The Astrophysical Journal Supplement Series!
"ExoMolHR: A Relational Database of Empirical High-resolution Molecular Spectra" Zhang et al. 2025
202429 Aug
Update NH3
Update 1 molecule: NH3
and add 1 isotopologue: 15N1H3.
Total 29 molecules and 54 isotopologues.
202410 Jul
Add BeH
Add 1 molecule: BeH
and 2 isotopologues: 9Be1H and 9Be2H.
Total 29 molecules and 53 isotopologues.
202417 Jun
Add 2 molecules OCS and PN
Add 2 molecules: OCS, PN
and 2 isotopologues: 16O12C32S, 31P14N.
Total 28 molecules and 51 isotopologues.
202415 May
Include 26 molecules and 49 isotopologues
The first release of ExoMolHR database includes 26 molecules and 49 isotopologues.
202415 May
ExoMolHR: A New High-Resolution Molecular Spectral Database Officially Launched!
🔥 IMPORTANT
The ExoMolHR database is now officially live! We are thrilled to present our newly developed, high-resolution molecular spectral database.
It is meticulously designed and computed to provide empirically refined data for advanced high-resolution spectroscopic research.
We invite the community to explore the rigorous measurements and tools now available.
ExoMolHR uses ExoMol data supported by ERC Advanced Investigator Projects 267219 and 883830