@gregoriobaq.bsky.social
Reposted
Happy birthday to Margaret Geller!
In my opinion, contributions that Geller and collaborators made to our understanding of the large-scale, 3D structure of the Universe are comparable in importance to Hubble expansion and cosmic acceleration. (11/11)
Image: Geller / SAO
In my opinion, contributions that Geller and collaborators made to our understanding of the large-scale, 3D structure of the Universe are comparable in importance to Hubble expansion and cosmic acceleration. (11/11)
Image: Geller / SAO
December 8, 2024 at 4:32 PM
Happy birthday to Margaret Geller!
In my opinion, contributions that Geller and collaborators made to our understanding of the large-scale, 3D structure of the Universe are comparable in importance to Hubble expansion and cosmic acceleration. (11/11)
Image: Geller / SAO
In my opinion, contributions that Geller and collaborators made to our understanding of the large-scale, 3D structure of the Universe are comparable in importance to Hubble expansion and cosmic acceleration. (11/11)
Image: Geller / SAO
Reposted
This one is a design for an axion dark matter detection experiment. Notably, this is focused on the scenario where axions were produced *after* inflation, meaning that the misalignment angle may vary and there could be topological defects. #cosmology
arxiv.org/abs/2411.18914
arxiv.org/abs/2411.18914
Toward a practical haloscope for the post-inflation axion incorporating a photonic band gap structure
Current and future searches for dark matter axions, based on their resonant conversion to photons in a magnetic field, span many orders of magnitude, from the very low mass GUT-scale axion to the very...
arxiv.org
December 2, 2024 at 3:51 PM
This one is a design for an axion dark matter detection experiment. Notably, this is focused on the scenario where axions were produced *after* inflation, meaning that the misalignment angle may vary and there could be topological defects. #cosmology
arxiv.org/abs/2411.18914
arxiv.org/abs/2411.18914
Reposted
This one probes the extent to which the halo mass function is universal and robust across variation of several cosmological parameters. They find close consistency which I think is a problem for using HMF for distinguishing between cosmological models! #cosmology arxiv.org/abs/2411.18722
On the universality of the halo mass function beyond $Λ$CDM cosmology
The abundance of dark matter haloes as a function of halo mass is a key diagnostic for constraining the cosmological model. The theoretical framework based on excursion set arguments, when applied to ...
arxiv.org
December 2, 2024 at 3:49 PM
This one probes the extent to which the halo mass function is universal and robust across variation of several cosmological parameters. They find close consistency which I think is a problem for using HMF for distinguishing between cosmological models! #cosmology arxiv.org/abs/2411.18722
Reposted
Saw that your U of Helsinki talk on Nov 20, Dark Energy and cosmology from the first data release of DESI, was posted today at their website
www.helsinki.fi/en/unitube/v...
www.helsinki.fi/en/unitube/v...
Cosmology seminar 20.11.2024 Seshadri Nadathur | University of Helsinki
www.helsinki.fi
November 27, 2024 at 4:07 PM
Saw that your U of Helsinki talk on Nov 20, Dark Energy and cosmology from the first data release of DESI, was posted today at their website
www.helsinki.fi/en/unitube/v...
www.helsinki.fi/en/unitube/v...
Reposted
Last but not least, we improve by 15% the upper bound on the sum of the neutrino masses (within ΛCDM) setting the upper bound to be 0.071 eV at 95% c.l.
November 21, 2024 at 1:03 PM
Last but not least, we improve by 15% the upper bound on the sum of the neutrino masses (within ΛCDM) setting the upper bound to be 0.071 eV at 95% c.l.