activity
20132026
most citedA high-dispersion molecular gas component in nearby galaxies

117 citations · 381 across the 8 of their papers we have counts for

collaborators

9 papers

astro-ph.GA2026

Active galactic nucleus activity in brightest cluster galaxies at intermediate redshifts in Sunyaev-Zel'dovich--selected clusters

N. Hatamkhani, R. E. Skelton, J. Delhaize +4

Context. Brightest cluster galaxies (BCGs) host powerful active galactic nuclei (AGNs) and help regulate the heating--cooling balance of the intracluster medium. While radio-mode f…

astro-ph.GA2022★ 33 cited

MIGHTEE-HI: Evolution of HI scaling relations of star-forming galaxies at

Francesco Sinigaglia, Giulia Rodighiero, Ed Elson +33

We present the first measurements of HI galaxy scaling relations from a blind survey at . We perform spectral stacking of 9023 spectra of star-forming galaxies undetected i…

astro-ph.EP2021★ 26 cited

Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant

Nicholas Saunders, Samuel K. Grunblatt, Daniel Huber +27

While the population of confirmed exoplanets continues to grow, the sample of confirmed transiting planets around evolved stars is still limited. We present the discovery and confi…

astro-ph.GA2021

The Bluedisk survey: thickness of HI layers in gas rich spiral galaxies

Toky H. Randriamampandry, Jing Wang, K. Moses Mogotsi

We use an empirical relation to measure the HI scale height of relatively HI rich galaxies using 21-cm observations. The galaxies were selected from the BLUEDISK, THINGS and VIVA s…

astro-ph.GA2018★ 31 cited

Angular momentum and local gravitational instability in galaxy discs: does correlate with or ?

Alessandro B. Romeo, Keoikantse Moses Mogotsi

We introduce a new diagnostic for exploring the link between angular momentum and local gravitational instability in galaxy discs. Our diagnostic incorporates the latest developmen…

astro-ph.GA2018★ 21 cited

The stellar velocity dispersion in nearby spirals: radial profiles and correlations

Keoikantse Moses Mogotsi, Alessandro B. Romeo

The stellar velocity dispersion, , is a quantity of crucial importance for spiral galaxies, where it enters fundamental dynamical processes such as gravitational instability and…

astro-ph.GA2017★ 59 cited

What drives gravitational instability in nearby star-forming spirals? The impact of CO and HI velocity dispersions

Alessandro B. Romeo, Keoikantse Moses Mogotsi

The velocity dispersion of cold interstellar gas, sigma, is one of the quantities that most radically affect the onset of gravitational instabilities in galaxy discs, and the quant…

astro-ph.GA2015★ 94 cited

HI and CO Velocity Dispersions in Nearby Galaxies

K. M. Mogotsi, W. J. G. de Blok, A. Caldu-Primo +3

We analyze the velocity dispersions of individual HI and CO profiles in a number of nearby galaxies from the high-resolution HERACLES CO and THINGS HI surveys. Focusing on regions…

astro-ph.CO2013★ 117 cited

A high-dispersion molecular gas component in nearby galaxies

Anahi Caldu-Primo, Andreas Schruba, Fabian Walter +5

We present a comprehensive study of the velocity dispersion of the atomic (HI) and molecular (H2) gas components in the disks (R < R25) of a sample of 12 nearby spiral galaxies wit…