Search Results - "Narayanan, Desika"
-
1
The Dust Attenuation Law in Galaxies
Published in Annual review of astronomy and astrophysics (18-08-2020)“…Understanding the properties of dust attenuation curves in galaxies and the physical mechanisms that shape them are among the fundamental questions of…”
Get full text
Journal Article -
2
The dust-to-gas and dust-to-metal ratio in galaxies from z = 0 to 6
Published in Monthly notices of the Royal Astronomical Society (21-11-2019)“…ABSTRACT We present predictions for the evolution of the galaxy dust-to-gas ratio (DGR) and dust-to-metal ratio (DTM) from z = 0 → 6, using a model for the…”
Get full text
Journal Article -
3
A theory for the excitation of CO in star-forming galaxies
Published in Monthly notices of the Royal Astronomical Society (01-08-2014)“…Observations of molecular gas in high-z star-forming galaxies typically rely on emission from CO lines arising from states with rotational quantum numbers…”
Get full text
Journal Article -
4
Mergers, starbursts, and quenching in the simba simulation
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT We use the simba cosmological galaxy formation simulation to investigate the relationship between major mergers ($\lesssim$4:1), starbursts, and…”
Get full text
Journal Article -
5
A Theory for the Variation of Dust Attenuation Laws in Galaxies
Published in The Astrophysical journal (10-12-2018)“…In this paper, we provide a physical model for the origin of variations in the shapes and bump strengths of dust attenuation laws in galaxies by combining a…”
Get full text
Journal Article -
6
How Well Can We Measure the Stellar Mass of a Galaxy: The Impact of the Assumed Star Formation History Model in SED Fitting
Published in The Astrophysical journal (01-11-2020)“…Abstract The primary method for inferring the stellar mass ( M * ) of a galaxy is through spectral energy distribution (SED) modeling. However, the technique…”
Get full text
Journal Article -
7
FIRE-2 simulations: physics versus numerics in galaxy formation
Published in Monthly notices of the Royal Astronomical Society (11-10-2018)Get full text
Journal Article -
8
Galaxy cold gas contents in modern cosmological hydrodynamic simulations
Published in Monthly notices of the Royal Astronomical Society (01-09-2020)“…ABSTRACT We present a comparison of galaxy atomic and molecular gas properties in three recent cosmological hydrodynamic simulations, namely SIMBA, EAGLE, and…”
Get full text
Journal Article -
9
Discovery of a Dark, Massive, ALMA-only Galaxy at z ∼ 5-6 in a Tiny 3 mm Survey
Published in The Astrophysical journal (20-10-2019)“…We report the serendipitous detection of two 3 mm continuum sources found in deep ALMA Band 3 observations to study intermediate-redshift galaxies in the…”
Get full text
Journal Article -
10
Cosmic Sands: The Origin of Dusty, Star-forming Galaxies in the Epoch of Reionization
Published in The Astrophysical journal (01-06-2023)“…Abstract 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…”
Get full text
Journal Article -
11
Interacting galaxies on FIRE-2: the connection between enhanced star formation and interstellar gas content
Published in Monthly notices of the Royal Astronomical Society (01-05-2019)Get full text
Journal Article -
12
The formation of submillimetre-bright galaxies from gas infall over a billion years
Published in Nature (London) (24-09-2015)“…Submillimetre-bright galaxies at high redshift are the most luminous, heavily star-forming galaxies in the Universe, but cosmological simulations of such…”
Get full text
Journal Article -
13
ALMA Measures Rapidly Depleted Molecular Gas Reservoirs in Massive Quiescent Galaxies at z ∼ 1.5
Published in The Astrophysical journal (01-02-2021)“…Abstract We present Atacama Large Millimeter/submillimeter Array (ALMA) CO(2–1) spectroscopy of six massive (log 10 / > 11.3) quiescent galaxies at z ∼ 1.5…”
Get full text
Journal Article -
14
Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation
Published in The Astrophysical journal (01-10-2024)“…Abstract We explore the cosmic evolution of the fraction of dust-obscured star formation predicted by the simba cosmological hydrodynamic simulations featuring…”
Get full text
Journal Article -
15
The Properties of the Interstellar Medium of Galaxies across Time as Traced by the Neutral Atomic Carbon [C i]
Published in The Astrophysical journal (10-02-2020)“…We report Atacama Large Millimeter Array observations of the neutral atomic carbon transitions [C i] and multiple CO lines in a sample of ∼30 main-sequence…”
Get full text
Journal Article -
16
slick: Modeling a Universe of Molecular Line Luminosities in Hydrodynamical Simulations
Published in The Astrophysical journal (01-10-2024)“…Abstract We present slick (the Scalable Line Intensity Computation Kit), a software package that calculates realistic CO, [C i ], and [C ii ] luminosities for…”
Get full text
Journal Article -
17
Galaxy gas fractions at high redshift: the tension between observations and cosmological simulations
Published in Monthly notices of the Royal Astronomical Society (21-10-2012)“…ABSTRACT CO measurements of z ∼ 1–4 galaxies have found that their baryonic gas fractions are significantly higher than those for galaxies at z = 0, with…”
Get full text
Journal Article -
18
Dark Molecular Gas in Simulations of z ∼ 0 Disk Galaxies
Published in The Astrophysical journal (10-12-2018)“…The H2 mass of molecular clouds has traditionally been traced by the CO(J = 1−0) rotational transition line. This said, CO is relatively easily…”
Get full text
Journal Article -
19
Submillimetre galaxies in a hierarchical universe: number counts, redshift distribution and implications for the IMF
Published in Monthly notices of the Royal Astronomical Society (01-01-2013)“…High-redshift submillimetre galaxies (SMGs) are some of the most rapidly star-forming galaxies in the Universe. Historically, galaxy formation models have had…”
Get full text
Journal Article -
20
Quenching of star formation from a lack of inflowing gas to galaxies
Published in Nature (London) (23-09-2021)“…Star formation in half of massive galaxies was quenched by the time the Universe was 3 billion years old 1 . Very low amounts of molecular gas seem to be…”
Get full text
Journal Article