Browsing Faculty of Natural Sciences by Author "Narayanan, Desika"
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The cosmic evolution of the IMF under the Jeans conjecture with implications for massive galaxies
Narayanan, Desika; Dave, Romeel (Oxford University Press, 2013)We examine the cosmic evolution of a stellar initial mass function (IMF) in galaxies that varies with the Jeans mass in the interstellar medium, paying particular attention to the K-band stellar mass-to-light ratio (M/LK) ... -
Cosmic sands: the origin of dusty, star-forming galaxies in the epoch of reionization
Davé, Romeel; Lower, Sidney; Narayanan, Desika (The astrophysical journal, 2023)We present the Cosmic Sands suite of cosmological zoom-in simulations based on the simba galaxy formation model in order to study the buildup of the first massive and dusty galaxies in the early universe. Residing in the ... -
How well can we measure the stellar mass of a galaxy: The impact of the assumed star formation history model in SED fitting
Dave´, Romeel; Lower, Sidney; Narayanan, Desika (IOP Publishing, 2020)The primary method for inferring the stellar mass (M∗) of a galaxy is through spectral energy distribution (SED) modeling. However, the technique rests on assumptions such as the galaxy star formation history and dust ...