GNIRS NIR Integral Field Spectroscopy of NGC 5128
We present observations of the active nucleus of NGC 5128 obtained with the integral field unit (IFU) available at GNIRS spectrograph until 2007. This is the nearest AGN and is completely hidden to the optical range by a strong dust lane due to the edge-on orientation of the galaxy disk. The A'...
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2021
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/175993 |
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I19-R120-10915-1759932025-01-31T20:04:30Z http://sedici.unlp.edu.ar/handle/10915/175993 GNIRS NIR Integral Field Spectroscopy of NGC 5128 Díaz, R. J. Mast, D. Gaspar, G. Günthardt, G. Dottori, Horacio Alberto Agüero, M. P. Camperi, J. A. Díaz, C. G. Gimeno, G. D'Ambra, A. 2021 2025-01-31T18:12:44Z en Ciencias Astronómicas galaxies: elliptical and lenticular, cD galaxies: kinematics and dynamics galaxies: individual (NGC 5128) quasars: supermassive black holes techniques: imaging spectroscopy We present observations of the active nucleus of NGC 5128 obtained with the integral field unit (IFU) available at GNIRS spectrograph until 2007. This is the nearest AGN and is completely hidden to the optical range by a strong dust lane due to the edge-on orientation of the galaxy disk. The A'-band (1.9 — 2.55 μηι) IFU spectra uncovered the nuclear emission and allowed a new determination of the supermassive black hole mass, plus mapping the molecular gas with a spatial resolution of ~ 7 pc. This work allows us to explore the scientific potential of the integral field capabilities in GNIRS, considering that Gemini is upgrading the instrument with the addition of two IFUs working in the spectral range 0.9 — 5.4 μηι, which will be available by the end of 2021. One of the IFUs will operate under natural seeing, allowing a field of 3.2" x 4.8" sampled each 0.15" with a spectral resolution R ~ 7200. The other unit will complement Gemini North adaptive optics system, sampling each 0.05" a field of 1.25" x 1.8", with R ~ 18000, an unprecedented spectral resolution for this kind of NIR integral field spectroscopy facility. Presentamos observaciones del núcleo de NGC 5128 obtenidas con la unidad de campo integral disponible en GNIRS hasta 2007. Este es el núcleo activo más cercano, y está oculto para el rango espectral óptico debido a la presencia de una gruesa banda de polvo. La espectroscopia en banda K (1.9 — 2.55 μηι) permitió penetrar el velo de polvo y obtener algunos resultados preliminares que se presentan en este trabajo. Incluimos una nueva determinación de la masa del agujero negro central, y un mapeo preliminar de la emisión del gas molecular, con una resolución espacial de ~ 7 pe. Este trabajo nos permite explorar el potencial de este tipo de capacidad observacional en GNIRS, pues como parte de su programa de mejoras instrumentales, Gemini está construyendo dos unidades de campo integral para el espectrógrafo infrarrojo GNIRS que estarán disponibles a fin de 2021. Una de las unidades operará en modo de seeing natural, permitiendo observar un campo de 3.2" x 4.8" muestreado cada 0.15" con una resolución espectral R ~ 7200 en el rango espectral 0.9 — 5.4 μηι. La otra unidad operará en complemento con la óptica adaptativa de Gemini Norte permitiendo muestrear cada 0.05" un campo de 1.25" x 1.8", con R ~ 18000, una resolución espectral inédita para este tipo de espectroscopia de campo integral infrarroja. Asociación Argentina de Astronomía Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 219-221 |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas galaxies: elliptical and lenticular, cD galaxies: kinematics and dynamics galaxies: individual (NGC 5128) quasars: supermassive black holes techniques: imaging spectroscopy |
| spellingShingle |
Ciencias Astronómicas galaxies: elliptical and lenticular, cD galaxies: kinematics and dynamics galaxies: individual (NGC 5128) quasars: supermassive black holes techniques: imaging spectroscopy Díaz, R. J. Mast, D. Gaspar, G. Günthardt, G. Dottori, Horacio Alberto Agüero, M. P. Camperi, J. A. Díaz, C. G. Gimeno, G. D'Ambra, A. GNIRS NIR Integral Field Spectroscopy of NGC 5128 |
| topic_facet |
Ciencias Astronómicas galaxies: elliptical and lenticular, cD galaxies: kinematics and dynamics galaxies: individual (NGC 5128) quasars: supermassive black holes techniques: imaging spectroscopy |
| description |
We present observations of the active nucleus of NGC 5128 obtained with the integral field unit (IFU) available at GNIRS spectrograph until 2007. This is the nearest AGN and is completely hidden to the optical range by a strong dust lane due to the edge-on orientation of the galaxy disk. The A'-band (1.9 — 2.55 μηι) IFU spectra uncovered the nuclear emission and allowed a new determination of the supermassive black hole mass, plus mapping the molecular gas with a spatial resolution of ~ 7 pc. This work allows us to explore the scientific potential of the integral field capabilities in GNIRS, considering that Gemini is upgrading the instrument with the addition of two IFUs working in the spectral range 0.9 — 5.4 μηι, which will be available by the end of 2021. One of the IFUs will operate under natural seeing, allowing a field of 3.2" x 4.8" sampled each 0.15" with a spectral resolution R ~ 7200. The other unit will complement Gemini North adaptive optics system, sampling each 0.05" a field of 1.25" x 1.8", with R ~ 18000, an unprecedented spectral resolution for this kind of NIR integral field spectroscopy facility. |
| format |
Articulo Articulo |
| author |
Díaz, R. J. Mast, D. Gaspar, G. Günthardt, G. Dottori, Horacio Alberto Agüero, M. P. Camperi, J. A. Díaz, C. G. Gimeno, G. D'Ambra, A. |
| author_facet |
Díaz, R. J. Mast, D. Gaspar, G. Günthardt, G. Dottori, Horacio Alberto Agüero, M. P. Camperi, J. A. Díaz, C. G. Gimeno, G. D'Ambra, A. |
| author_sort |
Díaz, R. J. |
| title |
GNIRS NIR Integral Field Spectroscopy of NGC 5128 |
| title_short |
GNIRS NIR Integral Field Spectroscopy of NGC 5128 |
| title_full |
GNIRS NIR Integral Field Spectroscopy of NGC 5128 |
| title_fullStr |
GNIRS NIR Integral Field Spectroscopy of NGC 5128 |
| title_full_unstemmed |
GNIRS NIR Integral Field Spectroscopy of NGC 5128 |
| title_sort |
gnirs nir integral field spectroscopy of ngc 5128 |
| publishDate |
2021 |
| url |
http://sedici.unlp.edu.ar/handle/10915/175993 |
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