How to reference CHIANTI

The continued development of the CHIANTI database is dependent on continued funding which is generally available if we can demonstrate that the CHIANTI database is of use to astrophysical research.
If you use CHIANTI, we only ask that you acknowledge it appropriately in any publications:

1 - quote the first of the CHIANTI papers , which describes the methods used in CHIANTI, and the one associated with the particular VERSION of CHIANTI you have used:

• Version 1.x - Dere et al., 1997; A&AS, 125, 149
• Version 2.x - Landi et al. 1999; A&AS, 135, 339
• Version 3.x - Dere et al., 2001; ApJS, 134, 331
• Version 4.x - Young et al., 2003; ApJS, 144, 135
• Version 5.x - Landi et al., 2006; ApJS, 162, 261
• Version 6.x - Dere et al., 2009; A&A, 498, 915
• Version 7.0 - Landi et al., 2012; ApJS, 744, 99
• Version 7.1 - Landi et al., 2013; ApJS, 763, 86
• Version 8.0 - Del Zanna et al., 2015; A&A, 582, A56
• Version 9.0 - Dere et al., 2019; ApJS, 241, 22
• Version 10.0 - Del Zanna et al., 2020, ApJ, submitted

For example, if you have used Version 7, the reference to CHIANTI should be given as ''Dere et al. 1997, Landi et al. 2013''.

2 - We would also appreciate if you also write in the acknowledgements of any publication the following short sentence:

CHIANTI is a collaborative project involving George Mason University, the University of Michigan (USA), University of Cambridge (UK) and NASA Goddard Space Flight Center (USA).

When CHIANTI data are incorporated into other data bases, it is appropriate to indicate which version has been incorporated, so that confusion is avoided and users can find the original sources of the calculation via the CHIANTI web pages or the CHIANTI papers.