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Near-IR and Optical Morphology of Spiral Galaxies | | Paul B. Eskridge
; Jay A. Frogel
; Richard W. Pogge
; Alice C. Quillen
; Andreas A. Berlind
; Roger L. Davies
; D.L. DePoy
; Karoline M. Gilbert
; Mark L. Houdashelt
; Leslie E. Kuchinski
; Solange V. Ramirez
; K. Sellgren
; Amelia Stutz
; Donald M. Terndrup & Glenn P. Tiede
; | | Date: |
18 Jun 2002 | | Journal: | Astrophys.J.Suppl. 143 (2002) 73-112 | | Subject: | astro-ph | | Abstract: | We announce the initial release of data from the Ohio State University Bright Spiral Galaxy Survey, a BVRJHK imaging survey of a well-defined sample of 205 bright, nearby spiral galaxies. We present H-band morphological classification on the Hubble sequence for the OSU Survey sample. We compare the H-band classification to B-band classification from our own images and from standard galaxy catalogs. Our B-band classifications match well with those of the standard catalogs. On average, galaxies with optical classifications from Sa through Scd appear about one T-type earlier in the H-band than in the B-band, but with large scatter. This result does not support recent claims made in the literature that the optical and near-IR morphologies of spiral galaxies are uncorrelated. We present detailed descriptions of the H-band morphologies of our entire sample, as well as B- and H-band images for a set of 17 galaxies chosen as type examples, and BRH color-composite images of six galaxies chosen to demonstrate the range in morphological variation as a function of wavelength. Data from the survey are accessible at http://www.astronomy.ohio-state.edu/~survey/ | | Source: | arXiv, astro-ph/0206320 | | Services: | Forum | Review | PDF | Favorites | |
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