Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/7/7048/

The following is the "ReadMe" document that describes this ADC catalog.

This catalog does not currently have a complete standard document. The ADC data viewer will not work for catalogs without standard documents.

You can access the files described here from the anonymous FTP directory:
   ftp://adc.astro.umd.edu/pub/adc/archives/catalogs/7/7048/. 

VII/48      Middle-Ultraviolet Photometry of Virgo Cluster Gal (Smith+ 1982)
================================================================================
Catalogue of Middle Ultraviolet Photometry of Virgo Cluster Galaxies
    Cornett R.H., Smith A.M.
    <ADC Bull. 1, 78 (1981)>
================================================================================
ADC_Keywords: Photometry, ultraviolet ; Clusters, galaxy

Description:
   The catalog contains photographic photometry of Virgo cluster galaxies in a
   wavelength band extending from 1620 A to 3200 A using sounding rocket
   techniques.  The instrumentation was flown on an Astrobee rocket in May
   1979.  The camera field of view and focal ratio are 11.4 degrees and f/1.4,
   respectively.  The Cs-Te photocathode of the channel plate image intensifier
   was used with a fused quartz window located near the camera focal plane.
   The constant energy mean wavelength is 2421 A and a full-width at
   half-maximum is 1150 A. The observational results are middle ultraviolet
   magnitudes, U(2421), or faint limits for U(2421), for 201 galaxies within
   5.5 degrees of the cluster center.  The catalog includes identifications,
   revised Hubble types, Hubble galaxy classifications, B magnitudes, colors,
   measured fluxes at 2421 A, and neutral hydrogen data observed in the 21-cm
   lines.

File Summary:
--------------------------------------------------------------------------------
 FileName       Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe             80        .   This file
doc_01             80      102   Introduction
data_01.dat        94      201   Catalog Data
--------------------------------------------------------------------------------

Byte-by-byte Description of file: data_01.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  n  In     ---     ---      ---
--------------------------------------------------------------------------------

================================================================================
(End)                                 Gail L. Schneider [SSDOO/ADC]  25-Sep-1995
Go to ADC Home Page