Ionized gas in the halos of edge-on, starburst galaxies: Data and results

Abstract

view Abstract Citations (138) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Ionized Gas in the Halos of Edge-on, Starburst Galaxies: Data and Results Lehnert, Matthew D. ; Heckman, Timothy M. Abstract We present narrowband Hα 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 => 2), infrared-warm (S_60 microns_/S_100 microns_ > 0.4), infrared-bright (S_60 microns_ >= 5.4 Jy) galaxies. The infrared luminosity of the sample ranges over 10^10^ - 10^12^ L_sun_. 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] λλ6548, 6583, [O I] λ6300, Hα, and [S II] λλ6716, 6731 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, Hα luminosities, R- band absolute magnitudes, minor axis Hα "excess," and effective radii of the galaxies in Hα 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. Publication: The Astrophysical Journal Supplement Series Pub Date: March 1995 DOI: 10.1086/192137 Bibcode: 1995ApJS...97...89L Keywords: 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); Astronomy; GALAXIES: FUNDAMENTAL PARAMETERS; GALAXIES: STARBURST; GALAXIES: ISM; GALAXIES: KINEMATICS AND DYNAMICS full text sources ADS | data products SIMBAD (57) NED (56)