Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apjs...97...89l&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 97, no. 1, p. 89-139
Astronomy and Astrophysics
Astronomy
104
Galactic Halos, H Alpha Line, Infrared Astronomy, Infrared Imagery, Interstellar Gas, Ionized Gases, Kinematics, Starburst Galaxies, Charge Coupled Devices, Graphs (Charts), Image Processing, Stellar Luminosity, Tables (Data)
Scientific paper
We present narrowband H-alpha and broadband R images, as well as long-slit spectra oriented along the minor and major axes of a sample of about 50 edge-on (a/b greater than or equal to 2), infrared-warm (S60 microns/S100 microns greater than 0.04), infrared-bright S60 microns greater than or equal to 5.4 Jy galaxies. The infrared luminosity of the sample ranges over 1010 - 1012 solar luminosity. The spatially resolved spectroscopy includes the measurement of velocity relative to the nuclear velocity, full width at half-maximum, total integrated flux in the profile (for those spectra taken under photometric conditions) for the lines (N II) lambda lambda 6548, 6583, (O I) lambda 6300, H-alpha, and (S II) lambda lambda 6716, 6713 and line ratios as a function of slit position along both the major and minor axes. The resolution of the spectra are between about 3 and 5 A. The spectroscopic data are presented for 5 bins along each axis -- a nuclear bin that is a sum of the CCD rows that cover the half-light diameter centered on the nucleus of the galaxy, two near-nuclear bins which are sums of the CCD rows that cover from one to two half-light radii on each side of the nucleus, and two off-nuclear bins which are sums of the rows at nuclear distances greater than two half-light radii on each side of the nucleus. Additionally, we present recession velocities, nuclear line asymmetries, rotation speeds, minor axis velocity shears, H-alpha luminosities, R-band absolute magnitudes, minor axis H-alpha `excess' and effective radii of the galaxies in h-alpha and the R continuum. We defer discussion of the properties of the emission-line gas and their correlation with the infrared properties of this sample of galaxies to a later paper and limit ourselves to a presentation of the data and analysis.
Heckman Timothy M.
Lehnert Matthew D.
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