Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.sai.msu.su/sn/sncat/README Дата изменения: Wed Mar 26 18:34:28 2008 Дата индексирования: Sun Apr 13 03:57:14 2008 Кодировка:

SAI Supernovae Catalog README

This Catalogue is an export version of The SAI Supernovae Catalogue
http://www.sai.msu.su/sn/sncat/,
suited to be loaded into the PostgreSQL database http://www.postgresql.org/
for personal usage.

PREREQUISITIE:

* PostgreSQL version 8.+,

Download current version of the Catalogue from this location:
http://www.sai.msu.su/sn/sncat/latest/, as sncat_latest.tar.gz.

FILES:

* README - this file
* VERSION - timestamp of the catalogue (last modification)
* initdb.sh - creates database, scheme (sn) and tables
o references.sql - create references tables
o sncat.sql - create base tables
* load.sh - load data
o Dump and load tables
o view.sql - defines sn_cat
o grant.sql - defines permissions
o index.sql - defines indices
* finish.sh - validation script
* SNCOLUMNS - description of base columns of sn_cat view.

DOCUMENTATION:

* sn_cat - the main table (view)
* sn,galaxies - are the base tables
* map - is a sn-galaxies mapping
* other tables are references

INSTALLATION:

1. Unpack archive sncat_latest.tar.gz
2. cd sncat-yyyy-mm-dd
3. sh initdb.sh DBNAME
4. sh load.sh DBNAME
5. sh finish.sh DBNAME

EXAMPLES:

Sample sql-queries you can use:

* Produce flat-file catalog ordered by supernovae name:
o psql DBNAME -c "SELECT * FROM sn.sn_cat
ORDER BY sn_name limit 50;"

* Count supernovae of different types
o psql DBNAME -c "SELECT st.name as SNType, count(*) as Number
FROM sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
GROUP BY st.name ORDER BY st.name;"

* List of 10 type-Ia supernovae:
o psql DBNAME -c "SELECT * FROM sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='Ia' ORDER BY s.name limit 10;"

* List of type-II supernovae in Elliptical/Lenticular galaxies:
o psql DBNAME -c "SELECT s.name, g.name, st.name as sntype,
g.type as galtype, g.t
FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='II' and s.gid=g.id and g.t <=-1
ORDER BY s.name;"

* List of type-II supernovae in Spiral galaxies with z>0.05
o psql DBNAME -c "SELECT s.name, g.name, st.name as sntype,
g.type as galtype, g.z
FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='II' and s.gid=g.id and substr(g.type,1,1)='S'
and g.z > 0.05
ORDER BY s.name;"


* Maximal redshift of a type-II supernova

o psql DBNAME -c "SELECT max(g.z)
FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='II' and s.gid=g.id;"

* Maximal redshift of a supernova discovered in the
course of Lick Observatory Supernova Search
o psql DBNAME -c "SELECT max(g.z)
FROM sn.galaxies as g, sn.sn as s
WHERE s.gid=g.id and
position (
'LI' in
array_to_string ( array( select survey.name from
survey where id = any( s.survey )), ',')
)>0

* Minimal and maximal redshifts of supernovae discovered in the
course of Supernova Cosmology Project ( S. Perlmutter et al. )
o psql DBNAME -c "SELECT min(g.z),max(g.z)
FROM sn.galaxies as g, sn.sn as s
WHERE s.gid=g.id and
position (
'SC' in
array_to_string ( array( select survey.name from
survey where id = any( s.survey )), ',')
)>0;"

* Count the relation of the number of SN Ia in Elliptical galaxies
to that of in all galaxies
o psql DBNAME -c "
SELECT( (SELECT count(*) FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='Ia' and s.gid=g.id and
substr(g.type,1,1)='E')*1./
( (SELECT count(*) FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='Ia' and s.gid=g.id )*1.)) ;"

* Count the relation of the number of SN Ia to that of SN II for
supernovae with z<0.1
o psql DBNAME -c " SELECT((SELECT count(*)
FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='Ia' and s.gid=g.id and z<0.1)*1./
((SELECT count(*) FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='II' and s.gid=g.id and z<0.1)*1.)) ; "

* Count the relation of the number of SN Ia to that of SN II for
supernovae with z>=0.1
o psql DBNAME -c " SELECT((SELECT count(*)
FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='Ia' and s.gid=g.id and z>=0.1)*1./
((SELECT count(*) FROM sn.galaxies as g, sn.sn as s
LEFT OUTER JOIN sn.sntypes as st on (st.id=s.type)
WHERE st.name='II' and s.gid=g.id and z>=0.1)*1.)) ; "