A MAGELLAN-IMACS-IFU SEARCH FOR DYNAMICAL DRIVERS OF NUCLEAR ACTIVITY. I. REDUCTION PIPELINE AND GALAXY CATALOG

Journal Article · Thu Mar 01 00:00:00 EST 2012 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/199/1/1· OSTI ID:22048034

Westoby, P B; Mundell, C G; Maciejewski, W; Baldry, I K ^[1]; Nagar, N M ^[2]; Emsellem, E ^[3]; Roth, M M; Gerssen, J ^[4]

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1. Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD (United Kingdom)
2. Astronomy Group, Departamento de Fisica, Universidad de Concepcion, Casilla 160-C, Concepcion (Chile)
3. European Southern Observatory, Karl-Schwarzschild-Str 2, 85748 Garching (Germany)
4. Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam (Germany)

Using the IMACS integral-field unit (IFU) on the 6.5 m Magellan telescope, we have designed the first statistically significant investigation of the two-dimensional distribution and kinematics of ionized gas and stars in the central kiloparsec regions of a well-matched sample of Seyfert and inactive control galaxies selected from the Sloan Digital Sky Survey. The goals of the project are to use the fine spatial sampling (0.2 arcsec pixel{sup -1}) and large wavelength coverage (4000-7000 A) of the IMACS-IFU to search for dynamical triggers of nuclear activity in the central region where active galactic nucleus (AGN) activity and dynamical timescales become comparable, to identify and assess the impact of AGN-driven outflows on the host galaxy and to provide a definitive sample of local galaxy kinematics for comparison with future three-dimensional kinematic studies of high-redshift systems. In this paper, we provide the first detailed description of the procedure to reduce and calibrate data from the IMACS-IFU in 'long mode' to obtain two-dimensional maps of the distribution and kinematics of ionized gas and stars. The sample selection criteria are presented, the observing strategy is described, and resulting maps of the sample galaxies are presented along with a description of the observed properties of each galaxy and the overall observed properties of the sample.

• OSTI ID: 22048034
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 199, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTRONOMY
ASTROPHYSICS
CATALOGS
COMPARATIVE EVALUATIONS
GALAXY NUCLEI
INTEGRALS
MILKY WAY
RED SHIFT
SAMPLING
SEYFERT GALAXIES
STARS
TELESCOPES
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS
WAVELENGTHS