How to use the Catalog
Please, follow instructions stated below:
-
Read 'readme.txt' to control the set of catalog files
-
Change access permissions for files in the work
directory 'QSO_RKV_Catalog' :
-
Under Unix-like systems for files quasar_list.dat, results.html,
query.frm, style.var, bsd_qso_finder.x,
lnx_qso_finder.x:
enter in the work directory 'QSO_RKV_Catalog' and use commands:
'chmod 644 quasar_list.dat
'
'chmod 644 results.html
'
'chmod 644 query.frm
'
'chmod 644 style.var
'
'chmod 544 bsd_qso_finder.x
' or
'chmod 544 lnx_qso_finder.x
'
depending on your operating system
-
Under Windows for files quasar_list.dat, results.html,
query.frm, style.var
check-box 'read only' must be disabled.
-
Fill the Query Form: edit file query.frm.
This is usual ASCII-file and can be edited by
any text editor. For example:
- Under Unix-like systems: Midnight Commander, emacs, nedit, cat
- Under Windows: Far, Notepad.
Use of Word is possible,
but not recommended.
Query Form (query.frm) requires the following parameters
(formats are indicated in query.frm):
- epoch of coordinate system: 1950 or 2000. It determines coordinate system
which will be used for search.
- interval of ascensions under consideration
- interval of declinations under consideration (sign + or -
is necessary)
- interval of emission-line redshifts under consideration
- interval of apparent magnitudes under consideration
- interval of absolute magnitudes under consideration
Save the Query Form (query.frm) with new parameters!
-
Run the data base manager:
- Under BSD Unix (file bsd_qso_finder.x):
a) in command line: use command './bsd_qso_finder.x';
or
b) use Midnight Commander
to run bsd_qso_finder.x
.
- Under Linux (file lnx_qso_finder.x):
a) in command line: use command './lnx_qso_finder.x';
or
b) use Midnight Commander
to run lnx_qso_finder.x
.
- Under Windows (file win_qso_finder.exe):
a) double-click on win_qso_finder.exe
or
b) use Far to run
win_qso_finder.exe
.
-
Notice messages in terminal during execution.
-
If data base manager has been executed successfully (file
results.html has been generated), refresh the work
directory 'QSO_RKV_Catalog'.
-
Result file results.html is usual HTML-file.
It can be
opened by any browser.
File results.html contains the following information:
- the query parameters
- number of records, and total number of records in the quasar list
- the QSO's name I at the epoch 2000 (J2000) identical to the name in Table 2 (see below);
- equatorial coordinates at epoch 2000:
right ascension α2000
and declination δ2000
in the order of increasing right ascensions;
- emission-line redshifts zem;
- apparent magnitudes V;
- absolute magnitudes M;
- equatorial coordinates at epoch 1950:
right ascension α1950
and declination δ1950
- the QSO's name II according to the catalog of M.-P. Veron-Cetty & P. Veron (2001);
-
How to save the Query Results as text
-
First method: Menu -> File -> Save as... -> File type: text
- Second method:
-
Select information: Menu -> Edit -> Select all or select all by mouse
-
Copy selected information to buffer.
-
Run nedit (under Unix-like systems) or Notepad
(under Windows)
-
Paste the information from buffer.
-
Save this new file.
-
You can manage some properties of style of results.html by
change of file
style.var (also usual ASCII-file):
- Thickness of border in pixels.
- Width of result table in percent.
- Height of result table in percent.
- Interchange of colors in result table: y ('yes') or n ('no')
- Align of header text: l ('left'), c ('center'), r ('right')
- Align of cell text: l ('left'), c ('center'), r ('right')