activity
19972015
most citedMapping of the molecular gas inflow towards the Seyfert nucleus of NGC4051 using Gemini NIFS

171 citations · 1.6k across the 32 of their papers we have counts for

collaborators

33 papers

astro-ph.GA2015★ 56 cited

Feeding Versus Feedback in AGN from Near-Infrared IFU Observations XI: NGC 2110

Marlon R. Diniz, Rogemar A. Riffel, Thaisa Storchi-Bergmann +1

We present a two-dimensional mapping of the gas flux distributions, as well as of the gas and stellar kinematics in the inner 220 pc of the Seyfert galaxy NGC 2110, using K-band in…

astro-ph.GA2015★ 9 cited

Photometry and dynamics of the minor mergers AM\,1228-260 and AM\,2058-381

J. A. Hernandez-Jimenez, M. G. Pastoriza, C. Bonatto +3

We investigate interaction effects on the dynamics and morphology of the galaxy pairs AM\,2058-381 and AM\,1228-260. This work is based on images and long-slit spectra obtaine…

astro-ph.GA2015★ 40 cited

The Stellar Spectral Features of Nearby Galaxies in the Near-Infrared: Tracers of Thermally-Pulsing Asymptotic Giant Branch Stars?

Rogério Riffel, Rachel E. Mason, Lucimara P. Martins +12

We analyze the stellar absorption features in high signal-to-noise ratio near-infrared (NIR) spectra of the nuclear region of 12 nearby galaxies, mostly spirals. The features detec…

astro-ph.GA2015★ 70 cited

The Nuclear Near-Infrared Spectral Properties of Nearby Galaxies

R. E. Mason, A. Rodriguez-Ardila, L. Martins +15

We present spectra of the nuclear regions of 50 nearby (D = 1 - 92 Mpc, median = 20 Mpc) galaxies of morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spec…

astro-ph.GA2014★ 23 cited

Short-Timescale monitoring of the X-ray, UV and broad double-peak emission line of the nucleus of NGC 1097

Jaderson S. Schimoia, Thaisa Storchi-Bergmann, Dirk Grupe +5

Recent studies have suggested that the short-timescale ( days) variability of the broad (10,000 km s) double-peaked H profile of the LINER nucleus of NGC…

astro-ph.GA2014★ 24 cited

Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies: evidence for central star formation?

Rogemar A. Riffel, Luis C. Ho, Rachel Mason +16

We examine the stellar velocity dispersions (sigma) of a sample of 48 galaxies, 35 of which are spirals, from the Palomar nearby galaxy survey. It is known that for ultra-luminous…