Publications (13)
Interaction effects on galaxy pairs with Gemini/GMOS- I: Electron density
A. C. Krabbe, D. A. Rosa, O. L. Dors +5
We present an observational study about the impacts of the interactions in the electron density of \ion{H}{ii} regions located in 7 systems of interacting galaxies. The data consis…
Extended Gas in Seyfert Galaxies: Near Infrared Observations of NGC 2110 and Circinus
T. Storchi-Bergmann, C. Winge, Martin J. Ward +1
We present results of near--IR long-slit spectroscopy in the J and K bands of the Seyfert 2 galaxies NGC 2110 and Circinus, investigating the gaseous distribution, excitation, redd…
Chemical Abundances in Twelve Red Giants of the Large Magellanic Cloud from High-Resolution Infrared Spectroscopy
V. V. Smith, K. H. Hinkle, K. Cunha +10
High-resolution infrared spectra (R=50,000) have been obtained for twelve red-giant members of the LMC with the Gemini South 8.3-meter telescope plus Phoenix spectrometer. Quantita…
The effects of the interaction on the kinematics, stellar population and metallicity of AM2322-821 with Gemini/GMOS
A. C. Krabbe, M. G. Pastoriza, C. Winge +3
We present an observational study about the impacts of the interactions in the kinematics, stellar populations, and oxygen abundances of the components of the galaxy pair AM\,2322-…
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…
The origin of the Narrow Line Region of Mrk 3: an overpressured jet cocoon
A. Capetti, D. J. Axon, F. D. Macchetto +2
We have obtained HST FOC long-slit optical spectroscopy of the Narrow Line Region of the Seyfert 2 galaxy Mrk 3. In the region cospatial with the radio-jet the velocity field is hi…
The Earliest Near-infrared Time-series Spectroscopy of a Type Ia Supernova
E. Y. Hsiao, G. H. Marion, M. M. Phillips +19
We present ten medium-resolution, high signal-to-noise ratio near-infrared (NIR) spectra of SN 2011fe from SpeX on the NASA Infrared Telescope Facility (IRTF) and Gemini Near-Infra…
The Compton-Thick Seyfert 2 Nucleus of NGC3281: Torus Constraints from the 9.7m Silicate Absorption
Dinalva A. Sales, M. G. Pastoriza, R. Riffel +3
We present mid infrared (Mid-IR) spectra of the Compton-thick Seyfert 2 galaxy NGC\,3281, obtained with the Thermal-Region Camera Spectrograph (T-ReCS) at the Gemini South telescop…
Evolution of the accretion disk around the supermassive black hole of NGC 7213
J. S. Schimoia, T. Storchi-Bergmann, C. Winge +2
We present observations of the double-peaked broad H profile emitted by the active nucleus of NGC 7213 using the the Gemini South Telescope in 13 epochs between 2011 September…
Interaction effects on galaxy pairs with GeminiGMOS-III: Stellar population synthesis
A. C. Krabbe, D. A. Rosa, M. G. Pastoriza +4
We present an observational study of the impacts of the interactions on the stellar population in a sample of galaxy pairs. Long-slit spectra in the wavelength range 3440-7300 Ã ob…
The complex, dusty narrow-line region of NGC 4388: Gas-jet interactions, outflows, and extinction revealed by near-IR spectroscopy
A. Rodriguez-Ardila, R. E. Mason, L. Martins +14
We present Gemini/GNIRS spectroscopy of the Seyfert 2 galaxy NGC 4388, with simultaneous coverage from 0.85 - 2.5 m. Several spatially-extended emission lines are detected for…
Interaction effects on galaxy pairs with Gemini/GMOS- II: Oxygen abundance gradients
D. A. Rosa, O. L. Dors, A. C. Krabbe +5
In this paper we derived oxygen abundance gradients from HII regions located in eleven galaxies in eight systems of close pairs. Long-slit spectra in the range 4400-7300A were obta…
Haffner 16: A Young Moving Group in the Making
T. J. Davidge, E. R. Carrasco, C. Winge +4
The photometric properties of main sequence (MS) and pre-main sequence (PMS) stars in the young cluster Haffner 16 are examined using images recorded with the Gemini South Adaptive…