# AST 410 Course Blog

## The basics

\label{s.basics}

An example of an inline equation: $$a+b=\alpha\gamma$$. To display an equation, you use the equation environment.

$$\label{e.Newton} \label{e.Newton}\left(\frac{\partial^{2}x}{\partial t^{2}}\right)=-\frac{GM}{r^{2}}\\$$

We can also do display math without an equation number:

$$G_{\mu\nu}=8\pi T_{\mu\nu}.\nonumber \\$$

The equation environment allows us to cross-reference equations: equation (\ref{e.Newton}) is Newton’s equation. Citations are handled with the cite command and its variants: “observations of the quiescent luminosity of MAXI J0556-332 suggest the presence of a strong heat source in its accreted envelope (Deibel 2015).” Notice that this style uses an author-date system. With author-date, there are fancier versions of the cite command: “with the release of the second MESA paper, Paxton et al. (2013)”. Here I would like to cite this result (Deibel 2016).

sample
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### References

1. A. Deibel, A. Cumming, E. F. Brown, D. Page. A Strong Shallow Heat Source in the Accreting Neutron Star MAXI J0556-332. 809, L31 (2015). Link

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3. Alex Deibel. OCEAN g-MODES ON TRANSIENT NEUTRON STARS. The Astrophysical Journal 832, 44 American Astronomical Society, 2016. Link