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J/A+AS/129/87      ROSAT RASS II observations of IRAS galaxies  (Boller+ 1998)
ROSAT All-Sky Survey observations of IRAS galaxies. I.
Soft X-ray and far-infrared properties.
     Boller T., Bertoldi F., Dennefeld M., Voges W.
    <Astron. Astrophys. Suppl. Ser. 129, 87 (1998)>
    =1998A&AS..129...87B
ADC_Keywords: Galaxies, IR ; X-ray sources ; Radial velocities

Mission_Name: ROSAT

Keywords: galaxies: general - galaxies: active - galaxies: Seyfert -
          X-rays: galaxies

Abstract:
    The 120000 X-ray sources detected in the RASS II processing of the
    ROSAT All-Sky Survey are correlated with the 14315 IRAS galaxies
    selected from the IRAS Point Source Catalogue: 372 IRAS galaxies show
    X-ray emission within a distance of 100 arcsec from the infrared
    position. By inspecting the structure of the X-ray emission in
    overlays on optical images we quantify the likelihood that the X-rays
    originate from the IRAS galaxy. For 197 objects the soft X-ray
    emission is very likely associated with the IRAS galaxy. Their soft
    X-ray properties are determined and compared with their far-infrared
    emission.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table3.dat       132      526   IRAS PSC galaxies and ROSAT All-Sky Survey II
                                  sources separated by less than 100 arcsec.
notes.dat         74       96   Individual notes


See also:
    IX/11 : ROSAT PSPC Source Catalog (Voges+ 1994)
    IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1996)
   II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
   II/126 : IRAS Serendipitous Survey Catalog (IPAC 1986)
   II/156 : IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989)


Byte-by-byte Description of file: table3.dat

   Bytes Format Units   Label     Explanations

   1- 11  A11   ---     IRAS      IRAS name
  13- 33  A21   ---     NED       NED name
  35- 36  I2    ---     o_NED     ? Number of NED counterparts (1)
  38- 46  F9.5  deg     RA1deg    ? ROSAT right ascension (J2000) (2)
  48- 56  F9.5  deg     DE1deg    ? ROSAT declination(J2000)
  58- 66  F9.5  deg     RA2deg    ? NED right ascension (J2000)
  68- 76  F9.5  deg     DE2deg    ? NED declination(J2000)
  78- 97  A20   ---     MType     Morphological type
  99-103  F5.2  mag     mag       ? Optical magnitude
     104  A1    ---     u_mag     Uncertainty flag on mag
 106-110  F5.2  arcmin  a         ? Semi-major apparent galaxy diameter
 112-115  F4.2  arcmin  b         ? Semi-minor apparent galaxy diameter
 117-121  I5    km/s    RV        ? Heliocentric Radial velocity
 123-127  F5.3  ---     z         ? Redshift
 129-132  A4    ---     Class     Classification grade of the X-ray to
                                   correlation quality (3)

Note (1): Number of NED counterparts within a distance of 2 arcmin
           from the ROSAT position
Note (2): No positions for:      F08140+7052 and 08022-2326
          NED position only for:  18396-3535 and F18567-3708
Note (3): Grade 1 and 2 are secure identifications, and for them
    the soft X-ray and far-infrared properties are listed in table 2 of
    the paper and in table 3. Objects with classification grades 3,4,5 or
    9 are not considered secure identifications.
    An * indicates a note detailed in file notes.dat


Byte-by-byte Description of file: notes.dat

   Bytes Format Units   Label     Explanations

   1- 11  A11   ---     IRAS      IRAS name
      13  I1    ---     Ntot      Total number of lines for the note
      15  I1    ---     Nline     Running line number in range [1,Ntot]
  17- 74  A58   ---     Text      Text of the note


Acknowledgements: Thomas Boller ,
                  Heinz Andernach 

History:
  * May 1998: table supplied by the author (Thomas Boller)
    to Heinz Andernach
  * 05-Jan-2001: 4 IRAS designations corrected at CDS (addition or
    removal of the "F" designating the "Faint" survey) for IRAS names
    for sources 02537-1641 05577-7655 12585+2803 16211+4036
(End)                                         Patricia Bauer  [CDS]  06-May-1998