14 papers
Constraints on the gravitational potential from DESI DR2 BAO and its implications for the local void scenario
Indranil Banik, José Antonio Nájera, José Antonio Nájera +1
The authors use DESI DR2 BAO together with CMB, BBN and cosmic‑chronometer data to measure any gravitational potential offset between the Milky Way and distant sources, testing whe…
The tidal features of the classical Milky Way satellites: Expected in MOND but inconsistent with cold dark matter models
Elena Asencio, Indranil Banik, Pavel Kroupa
Most classical satellites of the Milky Way are known to display signs of tidal disturbance (e.g. tidal tails, substructures, and distorted shapes). This cannot be explained by the…
Baryonic mass budgets in the central regions of the Bullet Cluster and their consistency with strong lensing in MOND
Dong Zhang, Hosein Haghi, Elena Asencio +8
Strong lensing observations of the Bullet Cluster have traditionally been regarded as strong evidence for dark matter and a major challenge to Milgromian dynamics (MOND). The offse…
The age of the Universe from a large sample of the oldest Galactic stars
Indranil Banik, Thenujaya Kudakolawa Kaluarachchige, Stephen Cookson +1
We estimate the age of the Universe using the Xiang & Rix sample of 247,103 Milky Way stars with high-resolution spectroscopy from LAMOST DR7 and eDR3 parallaxes. Stellar ag…
The subtle statistics of the distance ladder: On the distance prior and selection effects
Harry Desmond, Richard Stiskalek, José Antonio Nájera +1
Statistical methodology is rarely considered significant in distance-ladder studies or a potential contributor to the Hubble tension. We suggest it should be, highlighting two appr…
How does a MOND cosmology fare on Gpc scales? - Collisionless -body simulations of HDM
Alfie Russell, Indranil Banik, Oscar Cray +1
We present the largest collisionless -body cosmological simulations in a MOdified Newtonian Dynamics (MOND) cosmology to date. Our 4 simulations cover CDM as a baseline, a M…