VII/50 CO Radial Velocities Toward Galactic H II Regions (Blitz+ 1982)
Catalog of CO Radial Velocities toward Galactic H II Regions
Blitz L., Fich M., Stark A.A.
<Astrophys. Journ. Suppl., 49, 183 (1982)>
=1982ApJS...49..183B 1982ApJS...49..183B
Catalog of Carbon Monoxide Observations of Southern Hemisphere H II Regions
Gillespie A.R., Huggins P.J., Sollner T.C.L.G., Phillips T.G.,
Gardner F.F., Knowles S.H.
<Astron. and Astrophys., 60, 221 (1977)>
=1977A&A....60..221G 1977A&A....60..221G
ADC_Keywords: Radial velocities ; H II regions ; Carbon monoxide ; Radio sources
Description:
The catalog contains machine-readable versions of the "Catalog of CO
Radial Velocities Toward Galactic HII Regions" (Blitz et al. 1982) and
the "Catalog of Carbon Monoxide Observations of Southern Hemisphere
HII Regions" (Gillespie et al. 1977) in two separate files. The former
is a catalog of 242 molecular cloud complexes that are associated with
optical HII regions and includes source names, coordinates, CO radial
velocities, antenna temperatures and full width at half-maximum at
the position of the strongest CO emission, references for the
observations, distances to the stars exciting the HII regions, and
optical diameters of the HII regions. The latter is the first CO
survey of the southern sky; it was made using the Anglo-Australian
3.9-m optical telescope at 115GHz (2.6-mm wavelength) with a
hot-electron bolometer receiver located at the Coude focus. The data
were collected during two observing periods (September 1975, April
1976) and include designations, coordinates, median values for the
velocities, and distances to the stars exciting the HII regions.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
cogal.dat 150 361 CO Radial Vel. toward Galactic H II regions
cosouth.dat 138 37 CO at Southern Hemisphere H II Regions
refs.dat 138 58 References
notes.dat 116 260 Notes & References
--------------------------------------------------------------------------------
See also:
VII/9 : Lynds' Catalogue of Bright Nebulae (Lynds 1965)
VII/20 : Catalogue of HII Regions (Sharpless 1959)
Byte-by-byte Description of file: cogal.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- ID Source name (1)
7- 9 I3 h RAh Right ascension (equinox B1950) Hours (2)
10- 12 I3 min RAm Right Ascension Minutes (2)
13- 15 I3 s RAs Right Ascension Seconds (2)
17 A1 --- DE- Sign of Declination (equinox B1950) (2)
18- 19 I2 deg DEd Declination Degrees of arc (2)
21- 25 F5.2 arcmin DEm Declination Minutes of arc (2)
28- 33 F6.2 deg GLON1 Galactic longitude, l(II) center region (2)
35- 40 F6.2 deg GLAT1 Galactic latitude, b(II) (2)
42 A1 --- --- [(] uncertainty flag
43- 47 F5.1 km/s RV Observed value of radial velocity (3)
49- 52 F4.1 km/s e_RV ? Uncertainty of radial velocity measurement (3)
53 A1 --- u_RV [)] uncertain association with HII region
54 A1 --- --- [(] uncertainty flag
55- 58 F4.1 K TA ? Antenna temperature (4)
59 A1 --- u_TA [)] uncertain association with HII region
60 A1 --- --- [(] uncertainty flag only for BFS42
61 A1 --- l_FWHM [<] upper limit flag for FWHM
62- 65 F4.1 km/s FWHM ? Full width at half-maximum (5)
66 A1 --- u_FWHM [)] uncertain association with HII region
68- 73 F6.2 deg GLON2 ? Galactic longitude, l(II) of
strongest CO line (6)
75- 80 F6.2 deg GLAT2 ? Galactic latitude, b(II) of CO line (6)
82- 88 A7 --- ref CO references (7)
90 A1 --- --- [(> ] '(' uncertainty flag for Distan
91- 94 F4.2 kpc Dist ?=0 Distance (8)
96- 99 F4.2 kpc e_Dist ?=0 Error of distance in kpc
100 A1 --- u_Dist [) ] uncertainty flag concerning distance
102-108 A7 --- r_Dist Distance references (7)
110-115 F6.1 arcmin Diam Optical diameter of the HII region (9)
118 A1 --- Map Degree of mapping toward the HII region (10)
120-126 A7 --- r_Map Reference numbers for the mapping (7)
128-150 A23 --- note Comments (11)
--------------------------------------------------------------------------------
Note (1): Source name.
This file contains data for 294 sources from the Sharpless catalogue
VII/20 and 67 additional sources (33 of which had not been
previously catalogued) that were found by the authors on Palomar Sky
Survey (PSS) prints. Sharpless objects are indicated by an 'S' in byte
1, followed immediately by the catalogue number. The additional HII
regions are denoted by 'BFS' in bytes 1-3, followed immediately by a
sequence number. The initial magnetic tape contained data for two
other sources not presented in the published catalogue. The sources
are included in this version and have 'BFS' in bytes 1-3 without a
sequence number. The records in this file have been sorted by galactic
longitude, l(II) (bytes 28-33).
Note (2): Equatorial coordinates (B1950) and Galactic coordinates
(system II, 1950) of the approximate center of light of the HII
region. The file is sorted on GLON1 field.
Note (3): CO radial velocity.
This gives the velocity centroid of the CO emission weighted by the
intensity at each location at which the detection was made. The
uncertainty given is a 1σ formal error of the intensity-weighted
velocity centroid for all of the detected lines. Several different
no-data flags are provided with the following explanations:
999.9 = "No detection". No CO was detected at any of the positions observed
to the limit of sensitivity (typically 0.5K).
888.8 = "No definite detection". Weak emission was observed which is
probably unrelated to the HII region.
777.7 = "Cannot associate". Relatively strong emission was detected which
could not definitely be associated with the HII region.
666.6 = "No observation".
555.5 = "Needs extensive mapping".
If one of the above values appears in bytes 43-47, the data in bytes 48-80
should be ignored.
Note (4): Antenna temperature at the position of the strongest CO emission.
Because, in general, the CO emission was not mapped, this may not be
the peak CO temperature in the cloud complex. The peak antenna
temperatures should generally be accurate to at least 25% and
in most cases to 10%
Note (5): Full width at half-maximum, in km/s, of the strongest CO line.
This quantity was measured directly from the profiles and is not based
on Gaussian fitting because of the complex nature of many of the
profiles.
Note (6): Galactic coordinates (system II, 1950) of the position of the
strongest CO line. This position rarely differs from the position in
bytes 28-40 by more than the radius of the HII region.
Note (7): CO references for the observation presented in the catalogue.
If more than one reference is given, the parameters of the CO line at
the peak position are generally taken from the most extensive or
well-sampled observations. The list of numbers in this field refer to
those records of "refs.dat" file.
Note (8): distance, in kpc, to the star exciting the HII region.
This was determined by spectrophotometry of the stars and all cases
are taken from the published literature.
Note (9): taken from the Sharpless catalogue and from measurements of the
red PSS prints for the newly catalogued sources.
Note (10): degree of mapping toward the HII region as:
P=partial, E=extensive, C=complete.
A blank in this column means only a few points have been observed.
Note (11): Comments.
This area gives other identifications for the HII region and
associated objects and an indication if there is additional material
in file 3 (notes.dat), Notes and References (the string '(NOTES)' will
appear if this is the case). For the additional sources found by the
authors and denoted by 'BFS' in bytes 1-4, references to other
catalogues are as follows:
BER = Bernes (1977A&AS...29...65B 1977A&AS...29...65B),
DG = Dorschner and Guertler (1963AN....287..257D 1963AN....287..257D),
LBN = Lynds (1965ApJS...12..163L 1965ApJS...12..163L, cat. VII/9),
M = Marsalkova (1974Ap&SS..27....3M 1974Ap&SS..27....3M),
PK = Perek and Kohoutek 1967 (see in Cat. V/84),
PP = Parsamian and Petrossian 1979,
RCW = Rogers, Campbell, and Whiteoak (1960MNRAS.121..103R 1960MNRAS.121..103R).
VDB = van den Bergh (1966AJ.....71..990V 1966AJ.....71..990V),
--------------------------------------------------------------------------------
Byte-by-byte Description of file: cosouth.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Sname Source designation (1)
15- 17 I3 h RAh Right Ascension (Equatorial coord. B1950)
18- 20 I3 min RAm Right Ascension Minutes
21- 23 I3 s RAs Right Ascension Seconds
25 A1 --- DE- Sign, always '-', of Declination
26- 27 I2 deg DEd Declination Degrees of arc (equinox B1950)
29- 33 F5.2 arcmin DEm Declination Minutes of arc
35- 41 F7.2 deg GLON Galactic longitude, l(II) of the observation
42- 48 F7.2 deg GLAT Galactic latitude, b(II) of the observation
51- 55 F5.1 km/s VLSR Median CO velocity (Local Standard of Rest)
57- 60 F4.1 km/s EW Equivalent line width, in km/s (2)
63- 66 F4.1 K TAp Peak antenna temperature (3)
70- 73 F4.1 K TAc Continuum antenna temperature at 5GHz (4)
74- 80 F7.1 km/s V-H109 ? Velocity of the H 109α line (5)
81- 87 F7.1 km/s V-OH1 ? Velocity of the OH line (5)
88- 94 F7.1 km/s V-OH2 ? Velocity of another strong OH line (5)
95-101 F7.1 km/s V-OH3 ? Velocity of another strong OH line (5)
102-111 F10.2 km/s V-H2CO1 ? Velocity of the H2CO line (5)
112 A1 --- --- [( ] '(' - uncertainty about the V-H2CO2 data
113-117 F5.1 km/s V-H2CO2 ? Velocity of another strong H2CO line (5)
118 A1 --- u_V-H2CO2 [) ] ')' - uncertainty about the V-H2CO2 data
121-125 F5.2 kpc Dist ?=0.0 Distance (6)
126-130 F5.2 kpc e_Dist ?=0 Error of distance measurement
134-138 A5 --- Com [A-E, ] Remarks, see "notes.dat" (7)
--------------------------------------------------------------------------------
Note (1): Source designation.
Names have been given for 24 of the 37 sources appearing in this file.
NGC = Sulentic and Tifft 1973 VII/1,
RCW = Rogers, Campbell, and Whiteoak (1960MNRAS.121..103R 1960MNRAS.121..103R),
W = Westerhout (1958BAN....14..215W 1958BAN....14..215W).
Note (2):
Defined as (Integration of TA* over dv)/TA*(max) where TA* is the
corrected antenna temperature, bytes 63-66.
Note (3):
Peak antenna temperature, TA*, corrected for atmospheric extinction
and telescope efficiency.
Note (4):
Continuum antenna temperature at 5 GHz, Tc. This value was taken from
Whiteoak and Gardner (1974A&A....37..389W 1974A&A....37..389W).
Note (5):
Comparison values for the velocities of the H 109α line and the
strongest OH and H2CO lines (Wilson, et al. 1970A&A.....6..364W 1970A&A.....6..364W,
Whiteoak and Gardner 1974A&A....37..389W 1974A&A....37..389W,
Caswell and Robinson 1974AuJPh..27..597C 1974AuJPh..27..597C).
These values will be 0.0 if no data are available.
For V-OH3, a value is available only for the source listed in record 27,
all other records have 0.0 in this field.
Note (6): Distance to the star exciting the HII region, in kpc.
This value is 0.0 if no distance is available.
Note (7):
This field contains a list of letters A through E separated by commas.
The note inferred by each letter may be found in the "notes.dat" file.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 3 I2 --- Ref [1/58] Reference number
4 A1 --- --- [.]
6- 24 A19 --- BibCode 19-digit bibliography code
26-138 A113 --- Text Author and text of reference
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- ID Source designation, as in cogal.dat,
or letter A to E for notes on "cosouth.dat"
7-150 A144 --- Text Text of note
--------------------------------------------------------------------------------
Remarks and Modifications:
The initial magnetic tape version of the catalogues described in this
document was supplied by Dr. M. Hauser, Code 693, Goddard Space Flight
Center, who obtained the tape from Dr. M. Fich. This tape contained the
major parts of the catalogue of Blitz, Fich, and Stark (1982) (BFS), and
the catalogue of Gillespie, et al. (1977) combined into one file. The file
included the source name, equatorial and galactic coordinates of the HII
region, distance of the HII region and the uncertainty in distance, CO
radial velocity and the uncertainty in velocity, and the angular diameter
of the HII region. The observational results of the two sets of authors
were separated into the two files described above in cogal.dat and
cosouth.dat. The additional material that was in the published catalogues
but not on the initial tape was keypunched at GSFC and merged into their
respective files. Finally the third file, Notes and References, was keyed
in by Brotzman and Hill.
The equatorial and galactic coordinates of the center of light in the
BFS file (bytes 7-40) were checked against each other with a Fortran
program. Some discrepancies were found. Corrections were supplied by Blitz
(1983) and were incorporated into the machine-readable version. These
corrections are listed in Table 1. The coordinates of the peak CO position
(bytes 68-80) reflect corrections for two objects, which are also given.
The round-off errors had been introduced into several of the published
galactic coordinates. Although these errors were of no practical
importance, recalculated values were substituted for the sake of
consistency.
Table 1. Errata in Blitz, Fich and Stark (1982) file
-----------------------------------------------------
PUBLISHED MACHINE-READABLE
VALUE VALUE
-----------------------------------------------------
OBJECT DATUM (ERRATUM) (CORRECTION)
S18 RA 17 44 36 17 44 18
S26 RA 17 54 30 17 55 18
DEC -23 20 -23 26
l 6.10 6.19
b 0.56 0.35
S30 RA 17 59 36 17 59 30
l 7.04 7.03
b -0.26 -0.28
S61 RA 18 30 18 18 30 42
DEC -5 2 -5 1
l 26.36 26.44
b 1.82 1.74
S143 DEC 58 0 57 30
l 107.29 107.23
b -1.43 -1.34
S195 RA 2 36 6 2 36 18
l 136.36 136.28
b -0.38 -0.41
S200 RA 3 2 30 3 6 30
b 4.12 4.11
S220 RA 4 58 0 3 58 0
DEC 46 16 36 16
l 160.76 160.31
b -12.27 -12.34
S238 RA 4 19 42 4 19 6
S265 RA 5 15 54 6 7 24
DEC 7 23 13 20
l 195.08 196.39
b -16.78 -2.86
S268 RA 6 4 42 6 07 24 (fixed in June 2012 at CDS)
BFS17 b(CO) 0.21 0.02
BFS18 b(CO) 0.16 0.02
BFS20 RA 0 31 2 0 31 39
l 121.48 121.45
-----------------------------------------------------
Acknowledgements:
The original ADC documentation by Lee E. Brotzman and Robert S. Hill
(1983) was used to create this ReadMe file.
References:
Bernes, C. 1977, Astr. Ap. Suppl., 29, 65.
=1977A&AS...29...65B 1977A&AS...29...65B
Blitz, L., Fich, M., and Stark, A. A. 1982, Ap. J. Suppl., 49, 183.
=1982ApJ....49..183B 1982ApJ....49..183B
Blitz, L. 1983, private communication.
Caswell, J. L., and Robinson, B. J. 1974, Australian J. Phys., 27, 597.
=1974AuJPh..27..597C 1974AuJPh..27..597C
Dorschner, J., and Guertler, J. 1963, Astr. Nach., 287, 257.
=1963AN....287..257D 1963AN....287..257D
Gillespie, A. R., Huggins, P. J., Sollner, T. C. L. G., Phillips, T. G.,
Gardner, F. F., and Knowles, S. H. 1977, Astron. and Astrophys., 60, 221.
=1977A&A....60..221G 1977A&A....60..221G
Lynds, B. T. 1965, Ap. J. Suppl., 12, 163.
=1965ApJS...12..163L 1965ApJS...12..163L, Catalog VII/9
Marsalkova, P. 1974, Ap. Space Sci., 27, 3.
=1974Ap&SS..27....3M 1974Ap&SS..27....3M
Parsamian, E. S., and Petrossian, V. M. 1979, Acad. Nauk. Armenian SSR.
Perek, L., and Kohoutek, L. 1967, Catalogue of Galactic Planetary Nebulae,
Prague, Czech Institute of Science.
(see catalog V/84)
Rogers, A. W., Campbell, C. T., and Whiteoak, J. B. 1960, M.N.R.A.S., 121,
103.
=1960MNRAS.121..103R 1960MNRAS.121..103R
Sharpless, S. 1959, Ap. J. Suppl., 41, 257.
=1959ApJS....4..257S 1959ApJS....4..257S, Catalog VII/20
Sulentic, J. W., and Tifft, W. G. 1973, The Revised New General Catalogue
of Nonstellar Objects, Univ. of Arizona Press, Tuscon, Arizona.
=Catalog VII/1
van den Bergh, S. 1966, A. J., 71, 990.
=1966AJ.....71..990V 1966AJ.....71..990V
Westerhout, G. 1958, Bull. Astron. Inst. Neth., 14, 215.
=1958BAN....14..215W 1958BAN....14..215W
Whiteoak, J. B., and Gardner, F. F. 1974, Astron. Astrophys., 37, 389.
=1974A&A....37..389W 1974A&A....37..389W
Wilson, T. L., Mezgar, P. G., Gardner, F. F., Milne, D. K. 1970, Astron.
Astrophys., 6, 364.
=1970A&A.....6..364W 1970A&A.....6..364W
History:
* 17-Jul-1996: prepared by C.-H. Joseph Lyu [Hughes STX/NASA]
* 17-Jun-2012: following an annotation on Simbad object LBN 195.63-02.51
the RA of S268 was fixed (RA=06 07.4 instead of 06 04.7)
* 31-May-2016: references and notes updated (thanks to H.A. Andernach)
(End) C.-H. Joseph Lyu [Hughes STX/NASA] 17-Jul-1996