Imperial College London

ProfessorAlanHeavens

Faculty of Natural SciencesDepartment of Physics

Chair in Astrostatistics
 
 
 
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Contact

 

+44 (0)20 7594 2930a.heavens Website

 
 
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Location

 

1018EBlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jimenez:2020:mnrasl/slaa135,
author = {Jimenez, R and Heavens, AF},
doi = {mnrasl/slaa135},
journal = {Monthly Notices of the Royal Astronomical Society},
pages = {L93--L97},
title = {The distribution of dark galaxies and spin bias},
url = {http://dx.doi.org/10.1093/mnrasl/slaa135},
volume = {498},
year = {2020}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - In the light of the discovery of numerous (almost) dark galaxies from the ALFALAFA and LITTLE THINGS surveys, we revisit the predictions of Jimenez et al. 1997, based on the Toomre stability of rapidly-spinning gas disks. We have updated the predictions for ΛCDM with parameters given by Planck18, computing the expected number densities of dark objects, and their spin parameter and mass distributions. Comparing with the data is more challenging, but where the spins are more reliably determined, the spins are close to the threshold for disks to be stable according to the Toomre criterion, where the expected number density is highest, and reinforces the concept that there is a bias in the formation of luminous galaxies based on the spin of their parent halo.
AU - Jimenez,R
AU - Heavens,AF
DO - mnrasl/slaa135
EP - 97
PY - 2020///
SN - 0035-8711
SP - 93
TI - The distribution of dark galaxies and spin bias
T2 - Monthly Notices of the Royal Astronomical Society
UR - http://dx.doi.org/10.1093/mnrasl/slaa135
UR - http://arxiv.org/abs/2005.11798v1
UR - http://hdl.handle.net/10044/1/81587
VL - 498
ER -