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astro-ph.CO2021★ 79 cited
Do cosmological observations allow a negative ?
Anjan A. Sen, Shahnawaz A. Adil, Somasri Sen
In view of the recent measurement of from HST and SH0ES team, we explore the possibility of existence of a negative cosmological constant (AdS vacua in the dark energy sect…
astro-ph.CO2021
Dynamics of tachyon dark energy on large scales and its imprint on observed galaxy power spectrum
Ajay Bassi, Ankan Mukherjee, Anjan A. Sen
In the present work, we study the large scale matter power spectrum as well as the observed galaxy power spectrum for non-canonical tachyon field dark energy model considering the…