ExoMol

Providing molecular line lists to the exoplanet community since 2009.

[ExoMol @ExoMol]

Spectroscopy of Exoplanets Over All Wavelengths
@ExoMol Conference
3rd Announcement
2025 June 26-29
High Leigh Conference Centre in Hertfordshire (near London)

A meeting at which observers and those measuring or calculating molecular data exchange ideas
https://t.co/IBZlzPT0Px

[ExoMol @ExoMol]

New ExoMol hot line lists for NO2 and its isotopologues with temperature dependent opacities
https://t.co/3jFVdsMeLP

See
https://t.co/IuCFNpiGrr
(@TroveMaster, Tom Mellor, Jonathan Tennyson)

[ExoMol @ExoMol]

Tunnel of Love 😀

[ExoMol @ExoMol]

ExoMol tea journal club:
Today's Dr Tom’s Dingbat:

[ExoMol @ExoMol]

#exomoltea
Dr Tom's dingbat from today:

[ExoMol @ExoMol]

PO
https://t.co/qRS3a4vZhh

[ExoMol @ExoMol]

ExoMol tea journal club.
Today's Spectrle: what molecule is it?
Clue: it is in @ExoMol and a diatomic

[ExoMol @ExoMol]

#exomoltea
Today's spectrle 😜

What @exomol molecule is this? Hint: it is a diatomic.

[ExoMol @ExoMol]

"By comparing models based on opacities from the limited number of molecules available in 2008 with models based on a more extensive number of molecules available in @ExoMol, we concluded that limitation in the classical 2008-grid did not affect the accuracy of the models"🤔

[ExoMol @ExoMol]

#exomoltea
A grid of self-consistent MSG (MARCS-StaticWeather-GGchem) cool stellar, sub-stellar, and exoplanetary model atmospheres by Jørgensen eat al.
https://t.co/6voDsMbjY1
(now with lots of @ExoMol line lists 😀)

[ExoMol @ExoMol]

#ExoMoltea
Experimental temperature- and pressure-dependent absorbance cross sections and a pseudo-line-list model for methyl formate near 5.7μm by Su et al.
https://t.co/tPoYIL6aNX

[ExoMol @ExoMol]

@exomol tea: Ionospheric irregularities at Jupiter observed by JWST by Melin et al. https://t.co/i7XOjacqrf
"JWST has revealed unexpected and complex emissions structures in the upper atmosphere of Jupiter, above the Great Red Spot."

[ExoMol @ExoMol]

ExoMol tea:
"Measurements of line strength of the ν1 transitions of OH" by Chang et al . (2023) https://t.co/BYIzMq5u8u
"Our absolute line strengths of the OH ν1 transitions are of <10% and they are lower than those in @hitran database by a factor of ∼1.4. " 🤔

[ExoMol @ExoMol]

ExoMol tea Journal club:
Updated Spectral Characteristics for the Ultracool Dwarf TRAPPIST-1 from Davoudi et al. ApJL 2024
https://t.co/TSKVLKH2Va
with amazing high res spectra containing many ExoMol molecules

[ExoMol @ExoMol]

ExoMol tea Journal club:
Molecules in Cool Stars: The A2Π − X2Σ+ and the B2Σ+ − X2Σ+ Band Systems of CaCl
Lavy & Bernath
ApJ 2024
https://t.co/Y4Gj889LLo
with a new accurate empirical line list for CaCl important for Cool red giant stars. It is not in @ExoMol yet but will be

[ExoMol @ExoMol]

ExoMol tea journal club:
Resetting tropospheric OH and CH4 lifetime with ultraviolet H2O absorption
Prather and Zhu, Science 2024

https://t.co/np6XWzIYTE
More water in the ultraviolet region (290 to 350 nm) imply reductions in sunlight with key photolysis rates decreasing

[ExoMol @ExoMol]

ExoMol tea journal club:
Special guest from UNSW Samuel Pitman: Ramp it up!

[ExoMol @ExoMol]

ExoMol tea journal club:

Thermal radiation at high-temperature and high-pressure conditions: Validation of HITEMP-2010 for carbon dioxide

Dammann et al. https://t.co/bsN6GRmFNd
Accurate experimental hot cross sections of CO2

[ExoMol @ExoMol]

Line list updates: The LaO line list has been extended to include the A-X band by Bernath et al. https://t.co/X7Ec240Zcl , see https://t.co/xsOh5AsJmW

[ExoMol @ExoMol]

A beautiful spectrum of CH3+ by JWST in a protoplanetary disk by Berne et al. (2023) https://t.co/8i7TW670mz (from June). Methyl cation is not in ExoMol, but is it needed?