# Greaves 2021: Addendum: Phosphine gas in the cloud deck of Venus

> Jane S. Greaves, Anita M. S. Richards, William Bains et al., 2021. 2 records on Mysteries Department cite it. The calibration problem and the revised…

Source: https://mysteriesdept.com/sources/SRC0CQY1GZ25FJN/addendum-phosphine-gas-in-the-cloud-deck-of-venus  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[Sources](https://mysteriesdept.com/sources)[Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine)Greaves 2021

**0**

# Addendum: Phosphine gas in the cloud deck of Venus

Jane S. Greaves, Anita M. S. Richards, William Bains et al., 2021. _Nature Astronomy 5(7), 726–728_.

Records that standard ALMA calibration was unsuitable for so bright a target and that the observatory issued a revised calibration; re-tests the JCMT line, finding the line minimum at 4.8 sigma against the baseline uncertainty (about 3 sigma under Snellen et al.'s definition).

**Phosphine in the clouds of Venus** Articledoi: **[10.1038/s41550-021-01423-y](https://doi.org/10.1038/s41550-021-01423-y)** Checked against the original0

## What it's used for here

The calibration problem and the revised significance of the JCMT line.

## Cited by on this site 2 records

[ALMA's standard calibration was unsuitable for so bright a target and had to be revised.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY1X5P6K79/almas-standard-calibration-was-unsuitable-for-so-bright-a)

Evidence

EVD

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

The mystery article

MYS

## Cite it

```
Greaves, J. S., Richards, A. M. S., Bains, W., Rimmer, P. B., & et al. (2021). Addendum: Phosphine gas in the cloud deck of Venus. Nature Astronomy 5(7), 726–728. https://doi.org/10.1038/s41550-021-01423-y
```

[Find it at doi.org](https://doi.org/10.1038/s41550-021-01423-y)

Key

**SRC** 0CQY1GZ25FJN

Kind

Journal article

Rights

The publisher's

Kept

27 Oct 2026, for editors

Checked

Against the published article

Added by

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

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

[CSL-JSON](https://mysteriesdept.com/sources/SRC0CQY1GZ25FJN/addendum-phosphine-gas-in-the-cloud-deck-of-venus/csl.json)