# Greaves 2022: Low levels of sulphur dioxide contamination of Venusian phosphine spectra

> Jane S. Greaves, Paul B. Rimmer, Anita M. S. Richards et al., 2022. 6 records on Mysteries Department cite it. The team's answer to the sulphur dioxide…

Source: https://mysteriesdept.com/sources/SRC0CQY1K5C5E45/low-levels-of-sulphur-dioxide-contamination-of-venusian  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine)Greaves 2022

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# Low levels of sulphur dioxide contamination of Venusian phosphine spectra

Jane S. Greaves, Paul B. Rimmer, Anita M. S. Richards et al., 2022. _Monthly Notices of the Royal Astronomical Society 514(2), 2994–3001_.

Uses a JCMT sulphur dioxide spectrum from June 2017 and simultaneous ALMA 2019 data to estimate SO2 contamination of the phosphine line at about 10 per cent (JCMT) and 2 per cent or less (ALMA). The corrected spectra, at 6–8 sigma, give similar absorption depths in 2017 and 2019.

**Phosphine in the clouds of Venus** Articledoi: **[10.1093/mnras/stac1438](https://doi.org/10.1093/mnras/stac1438)** Checked against the original0

## What it's used for here

The team's answer to the sulphur dioxide reading.

## Cited by on this site 6 records

[A JCMT SO2 spectrum within days of the 2017 data and simultaneous ALMA SO2 imply low contamination.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY20TW1ERZ/a-jcmt-so2-spectrum-within-days-of-the-2017-data-and)

Evidence

EVD

[After removing sulphur dioxide contamination, both spectra show 6–8 sigma absorption of similar depth.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY1VYM7R3V/after-removing-sulphur-dioxide-contamination-both-spectra)

Evidence

EVD

[SO2 contamination is estimated at about 10 per cent (JCMT) and 2 per cent or less (ALMA).](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY1ZC00HT5/so2-contamination-is-estimated-at-about-10-per-cent-jcmt-and)

Evidence

EVD

[Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine)

The mystery article

MYS

[If the line is real, is it phosphine or sulphur dioxide?](https://mysteriesdept.com/mysteries/venus-phosphine/questions/QST0CQY1TQJ1W8Q/if-the-line-is-real-is-it-phosphine-or-sulphur-dioxide)

Question

QST

[Is there a real absorption line at 266.94 GHz in the Venus spectra?](https://mysteriesdept.com/mysteries/venus-phosphine/questions/QST0CQY1TFR14XV/is-there-a-real-absorption-line-at-266-94-ghz-in-the-venus)

Question

QST

## Cite it

```
Greaves, J. S., Rimmer, P. B., Richards, A. M. S., Petkowski, J. J., Bains, W., & et al. (2022). Low levels of sulphur dioxide contamination of Venusian phosphine spectra. Monthly Notices of the Royal Astronomical Society 514(2), 2994–3001. https://doi.org/10.1093/mnras/stac1438
```

[Read it free at doi.org](https://doi.org/10.1093/mnras/stac1438)

Key

**SRC** 0CQY1K5C5E45

Kind

Journal article

Rights

The publisher's

Checked

Against the published article

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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