HST/ACS EMISSION LINE IMAGING OF LOW-REDSHIFT 3CR RADIO GALAXIES. I. THE DATA
Abstract
We present 19 nearby (z < 0.3) 3CR radio galaxies imaged at low and high excitation as part of a Cycle 15 Hubble Space Telescope (HST) snapshot survey with the Advanced Camera for Surveys (ACS). These images consist of exposures of the H{alpha} (6563 A, plus [N II] contamination) and [O III]{lambda}5007 emission lines using narrowband linear ramp filters adjusted according to the redshift of the target. To facilitate continuum subtraction, a single-pointing 60 s line-free exposure was taken with a mediumband filter appropriate for the target's redshift. We discuss the steps taken to reduce these images independently of the automated recalibration pipeline so as to use more recent ACS flat-field data as well as to better reject cosmic rays. We describe the method used to produce continuum-free (pure line-emission) images, and present these images along with qualitative descriptions of the narrow-line region morphologies we observe. We present H{alpha}+[N II] and [O III] line fluxes from aperture photometry, finding the values to fall expectedly on the redshift-luminosity trend from a past HST/WFPC2 emission line study of a larger, generally higher redshift subset of the 3CR. We also find expected trends between emission line luminosity and total radio power, as wellmore »
- Authors:
-
- Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
- Rochester Institute of Technology, 84 Lomb Memorial Drive, Rochester, NY 14623 (United States)
- Centre de Donnees Astronomique, 11 Rue de l'Universite, 67000 Strasbourg (France)
- INAF-Osservatorio Astronomico di Torino, Strada Osservatorio 20, 10025 Pino Torinese (Italy)
- Las Campanas Observatory, Observatories of the Carnegie Institute of Washington, Casilla 601, La Serena (Chile)
- Physics and Space Sciences Department, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901 (United States)
- Publication Date:
- OSTI Identifier:
- 21301648
- Resource Type:
- Journal Article
- Journal Name:
- Astrophysical Journal, Supplement Series
- Additional Journal Information:
- Journal Volume: 183; Journal Issue: 2; Other Information: DOI: 10.1088/0067-0049/183/2/278; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0067-0049
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; APERTURES; CAMERAS; COSMIC RADIATION; LUMINOSITY; MORPHOLOGY; PHOTOMETRY; QUASARS; RADIO GALAXIES; RED SHIFT; TELESCOPES
Citation Formats
Tremblay, Grant R, Chiaberge, Marco, Sparks, William B, Macchetto, F Duccio, Baum, Stefi A, Axon, David J, Noel-Storr, Jacob, O'Dea, Christopher P, Allen, Mark G, Capetti, Alessandro, Floyd, David J. E., Miley, George K, Perlman, Eric S, and Quillen, Alice C. HST/ACS EMISSION LINE IMAGING OF LOW-REDSHIFT 3CR RADIO GALAXIES. I. THE DATA. United States: N. p., 2009.
Web. doi:10.1088/0067-0049/183/2/278; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
Tremblay, Grant R, Chiaberge, Marco, Sparks, William B, Macchetto, F Duccio, Baum, Stefi A, Axon, David J, Noel-Storr, Jacob, O'Dea, Christopher P, Allen, Mark G, Capetti, Alessandro, Floyd, David J. E., Miley, George K, Perlman, Eric S, & Quillen, Alice C. HST/ACS EMISSION LINE IMAGING OF LOW-REDSHIFT 3CR RADIO GALAXIES. I. THE DATA. United States. https://doi.org/10.1088/0067-0049/183/2/278; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)
Tremblay, Grant R, Chiaberge, Marco, Sparks, William B, Macchetto, F Duccio, Baum, Stefi A, Axon, David J, Noel-Storr, Jacob, O'Dea, Christopher P, Allen, Mark G, Capetti, Alessandro, Floyd, David J. E., Miley, George K, Perlman, Eric S, and Quillen, Alice C. 2009.
"HST/ACS EMISSION LINE IMAGING OF LOW-REDSHIFT 3CR RADIO GALAXIES. I. THE DATA". United States. https://doi.org/10.1088/0067-0049/183/2/278; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
@article{osti_21301648,
title = {HST/ACS EMISSION LINE IMAGING OF LOW-REDSHIFT 3CR RADIO GALAXIES. I. THE DATA},
author = {Tremblay, Grant R and Chiaberge, Marco and Sparks, William B and Macchetto, F Duccio and Baum, Stefi A and Axon, David J and Noel-Storr, Jacob and O'Dea, Christopher P and Allen, Mark G and Capetti, Alessandro and Floyd, David J. E. and Miley, George K and Perlman, Eric S and Quillen, Alice C.},
abstractNote = {We present 19 nearby (z < 0.3) 3CR radio galaxies imaged at low and high excitation as part of a Cycle 15 Hubble Space Telescope (HST) snapshot survey with the Advanced Camera for Surveys (ACS). These images consist of exposures of the H{alpha} (6563 A, plus [N II] contamination) and [O III]{lambda}5007 emission lines using narrowband linear ramp filters adjusted according to the redshift of the target. To facilitate continuum subtraction, a single-pointing 60 s line-free exposure was taken with a mediumband filter appropriate for the target's redshift. We discuss the steps taken to reduce these images independently of the automated recalibration pipeline so as to use more recent ACS flat-field data as well as to better reject cosmic rays. We describe the method used to produce continuum-free (pure line-emission) images, and present these images along with qualitative descriptions of the narrow-line region morphologies we observe. We present H{alpha}+[N II] and [O III] line fluxes from aperture photometry, finding the values to fall expectedly on the redshift-luminosity trend from a past HST/WFPC2 emission line study of a larger, generally higher redshift subset of the 3CR. We also find expected trends between emission line luminosity and total radio power, as well as a positive correlation between the size of the emission line region and redshift. We discuss the associated interpretation of these results, and conclude with a summary of future work enabled by this data set.},
doi = {10.1088/0067-0049/183/2/278; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)},
url = {https://www.osti.gov/biblio/21301648},
journal = {Astrophysical Journal, Supplement Series},
issn = {0067-0049},
number = 2,
volume = 183,
place = {United States},
year = {Sat Aug 01 00:00:00 EDT 2009},
month = {Sat Aug 01 00:00:00 EDT 2009}
}