Hyperfine structure and isotope shifts in Mo II

S.D. Rosner, R.A. Holt

We have applied fast-ion-beam laser-fluorescence spectroscopy to measure the hyperfine structures of seven even-parity and six odd-parity levels in Mo II and the isotope shifts of nine transitions in the wavelength range 424.5–443.4 nm. These are the first measurements of these parameters and almost the first such measurements in Mo II. These atomic data are essential for astrophysical studies of chemical abundances, allowing correction for saturation and the effects of blended lines. They also provide important constraints on stellar diffusion modeling, particularly in chemically peculiar (CP) stars, and serve as valuable input to semi-empirical theoretical models of hyperfine structure and isotope shifts.

Article -> http://www.nrcresearchpress.com/doi/10.1139/cjp-2016-0192#.WCwazeErI7w

This entry was posted in Atomic data production, stellar spectroscopy. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s