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Title: The use of IRAS data to define H II regions Authors: HUGHES, V. A.; MACLEOD, G. C. Affiliation: AB(Queen's University, Kingston, Canada) Journal: Astronomical Journal (ISSN 0004-6256), vol. 97, March 1989, p. 786-800. Publication Date: 3/1989 Category: Astrophysics Origin: STI NASA/STI Keywords: H II REGIONS, INFRARED ASTRONOMY SATELLITE, MOLECULAR CLOUDS, PLANETARY NEBULAE, FLUX DENSITY, HYDROGEN, RADIO OBSERVATION, STAR FORMATION, VERY LARGE ARRAY (VLA) Bibliographic Code: 1989AJ.....97..786H
hii_iras.xyz with row of X, Y, Z values.
hii_iras has the same format as iras point catalog.
This catalog of 2293 ***probable*** HII region from IRAS PSC (v1.0).
Criteria are from Hughes & McLeod (1989).
of HII regions in IRAS catalog:
flux-quality numbers >= 1,2,2,1 at 12,25,60,100 mum
S(100mum) >= 50 Jy for FQ=2 or 3
S(100mum) >= 150 Jy for FQ=1
Y = log(S25/S12) >= 0.0
Y = log(S60/S25) >= 0.0
Z = log(S100/S60) >= 0.2
-10 <= b <= +10
confusion flags (hex) <=1 ( flag_c = 0, 1, 2, 4, 8 )