DMCat

A catalog of extragalactic dark matter halos and their annihilation and decay factors.

DMCat is a repository for the full-sky catalog of dark matter (DM) annihilation and decay factors for nearby galaxies presented in 1708.09385. This is a catalog of extragalactic signatures of beyond-the-standard model physics in the dark sector that is built from the galaxy group catalogs 1503.03134 and 1705.08068. Much of the formalism used to create this catalog derives from the work in 1709.00416.

Citing this work

If this catalog contributes to a publication, please cite the original paper 1708.09385 and companion work 1709.00416, along with the galaxy group catalogs that DMCat is based on: 1503.03134 and 1705.08068.
Please also check the CONTRIBUTORS.txt file to see if there are any new contributions that are relevant for citation.

Extending and Modifying this Catalog

DMCat is meant to be a living catalog. If you feel there is an error in DMCat, an entry can be updated with a more precise value, or new groups can be added to the catalog, we encourage you to do so! Please do this via a pull request. Then, add your name to the CONTRIBUTORS.txt list, along with a brief description of your contribution and a link to any relevant publication, so that your contribution may be properly acknowledged.

A permanent copy of the original version of this catalog, as it was first used in 1708.09385, is maintained here.

Loading the Catalog

In Python, we recommend loading the catalog as a Pandas DataFrame through the commands

import pandas as pd
DMCat =  pd.read_csv("DMCat.csv")

The Catalog: DMCat/DMCat.csv

Units

All J-factors (for annihilation) have units of GeV^2 cm^-5 sr, all D-factors (for decay) have units of GeV cm^-2 sr, all masses are in units of solar mass, dA and dc distances are in Mpc, rvir, rs, and r200 distances are in kpc, and all angles are in degrees.

Entries

DMCat/DMCat.csv consists of the following entries:

1. Name: Name of the brightest central galaxy (BCG) from the T15 or T17 catalogs.
2. GName: Common group name associated to the group, if one exists, cross-referenced from the CosmicFlows-3 catalog (1605.01765).
3. mulog10J: log_{10} of the inferred J-factor, using the fiducial boost factor in 1507.08656. This boost factor is calculated assuming the NFW DM profile.
4. siglog10J: Standard error on the measurement of mulog10J, in log space.
5. mulog10Jnb: Same as 2., except without the boost factor.
6. siglog10Jnb: Same as 3., except without the boost factor.
7. mulog10JB: Same as 2., except assuming the Burkert DM profile.
8. siglog10JB: Same as 3., except assuming the Burkert DM profile.
9. mulog10JBnb: Same as 4., except assuming the Burkert DM profile.
10. siglog10JBnb: Same as 5., except assuming the Burkert DM profile.
11. mulog10D: log_{10} of the inferred decay factor D.
12. siglog10D: Standard error on the measurement of mulog10D, in log space.
13. log10Mvir: log_{10} of the inferred virial mass.
14. sigmalog10Mvir: Standard error on the measurement of log10Mvir in log space.
15. cvir: Inferred central concentration parameter using the model of 1502.00391.
16. sigmalog10cvir: The standard error on the measurement of log10(cvir) in log space.
17. z: Cosmological redshift.
18. dA: Angular diameter distance to the central galaxy.
19. dc: Comoving distance to the central galaxy.
20. rvir: Inferred NFW virial radius of the halo.
21. rs: Inferred scale radius of the halo.
22. Ng: Number of group members in the galaxy group.
23. l: Galactic longitude of the central galaxy.
24. b: Galactic latitude of the central galaxy.
25. ra: Right ascension of the central galaxy in the ICRS frame.
26. dec: Declination of the central galaxy in the ICRS frame.
27. theta_s: Angular extension associated with the halo scale radius.
28. log10M200: log_{10} of the inferred 200 mass.
29. r200: Inferred NFW 200 radius of the halo.