> For the complete documentation index, see [llms.txt](https://thisisweijia.gitbook.io/website/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thisisweijia.gitbook.io/website/master.md).

# Research Main Page

Here is a summary of the projects I am working on.

{% hint style="info" %}
Each work tried to answer one or more specific questions, click the following links to see more detailed explanation.
{% endhint %}

### Population of stellar rotation rates in star clusters

* [Whether stellar rotation rates is the reason for extended main-sequence turnoff found in intermediate-age clusters?](/website/pssrr/stellar-rotation-and-the-extended-main-sequence-turnoff-in-the-open-cluster-ngc-5822.md)
* [Does split MS originates from stellar rotation dichotomy? If true, what causes the rotation distribution?](/website/pssrr/tidal-locking-induced-stellar-rotation-dichotomy-in-the-open-cluster-ngc-2287.md)
* [Can stellar rotation explain every clusters? Is there any contribution from other mechanism?](/website/pssrr/extended-main-sequence-turnoffs-in-the-double-cluster-h-and-x-persei.md)
* [Is the rotation rates in star clusters regulated by the same mechanism? Whether we can distinguish different formation scenario for the observed rotation distribution?](/website/pssrr/binary-driven-stellar-rotation-evolution-at-the-main-sequence-turn-o-in-star-clusters.md)

### Blue straggler stars in Magellanic Clouds clusters

* [What's the origin of blue straggler stars in Magellanic Clouds clusters? Formed from primordial binaries or dynamical interaction?](/website/bssmc/blue-straggler-stars-beyond-the-milky-way.-ii.-a-binary-origin-for-blue-straggler-stars-in-magellani.md)
* [Can we use the radial distribution of blue straggler stars as dynamical clocks in Magellanic Clouds clusters?](/website/bssmc/blue-straggler-stars-beyond-the-milky-way.-iv.-radial-distributions-and-dynamical-implications.md)

### Properties of contact binaries

* [How to derive physical parameters for large population of contact binaries with only photometric observation? Is there any difference between various subtypes?](/website/cbp/physical-parameters-of-late-type-contact-binaries-in-the-northern-catalina-sky-survey.md)

### Planetary nebulae in globular clusters

* [Is there any planetary nebulae in globular clusters in the Virgo cluster? If so, what can we learn from that?](/website/pngc/a-search-for-planetary-nebulae-in-virgo-cluster-globular-clusters.md)

### Mass function of young massive clusters

* [Is the initial cluster mass function universal?](/website/uicmf/the-star-cluster-mass-galactocentric-radius-relation-implications-for-cluster-formation.md)