SpiderCat, Compact Binary Millisecond Pulsars

These systems, colloquially known as "spiders", consist of neutron stars in tight orbits with low-mass companions, which are gradually ablated by the pulsar wind. SpiderCat includes both primary subclasses-redbacks and black widows-distinguished by companion mass, as well as candidates and peculiar systems such as transitional, huntsman, and tidarren MSPs.

As of this initial release, SpiderCat contains 111 entries: 30 redbacks, 50 black widows, two huntsmans, 23 redback candidates, five black widow candidates, and one huntsman candidate. In this paper, we compile and summarize key parameters for each system, including spin and orbital properties, and multiwavelength data from radio, optical, X-ray, and gamma-ray observations. An interactive, publicly accessible web interface, at astro.phys.ntnu.no/SpiderCAT, enables exploration and visualization of the data.