Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Feb 4;21(4):1072. doi: 10.3390/s21041072

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Figure A1 — Distance function $d (x)$ along a single row constructed using known distances for emission lines $l_{1}, \dots, l_{4}$ . Linearly interpolated region are shown in blue, extrapolated regions in red. In this case, extrapolation just assumes the closest known value.