J/A+A/368/845 Arcetri Catalog of H2O maser sources. Update. (Valdettaro+, 2001)
The Arcetri Catalog of H2O maser sources: Update 2000
Valdettaro R., Palla F., Brand J., Cesaroni R., Comoretto G., Di Franco S.,
Felli M., Natale E., Palagi F., Panella D., Tofani G.
<Astron. Astrophys. 368, 845 (2001)>
=2001A&A...368..845V 2001A&A...368..845V
ADC_Keywords: Masers ; Surveys ; Radio lines ; H II regions ; Stars, masers
Keywords: astronomical data bases: catalogs - masers - ISM: molecules -
radio lines: ISM - radio lines: stars
Abstract:
We present a second update of the Arcetri Catalog of water masers
(Comoretto et al., 1990A&AS...84..179C 1990A&AS...84..179C; Brand et al., 1994, Cat.
J/A+AS/103/541). The present study reports the results of the
observations carried out with the Medicina 32-m radiotelescope from
January 1993 to April 2000 on a sample of 300 sources. This
compilation consists of newly discovered maser sources that did not
appear in the previous Arcetri Catalogs and is made of: a) detections
from the literature, and b) unpublished detections obtained with the
Medicina antenna. Overall, 83 out of 300 sources were detected. The
detection rate is low (28%) and we attribute this result to the
inclusion in our survey of a rather large number of spurious maser
detections that have appeared in one particular paper. The
observational parameters are reported in tabular form for all the 300
sources and the spectra of the detected masers are presented. We
discuss the global properties of the complete Arcetri Catalog based on
Comoretto et al. (1990A&AS...84..179C 1990A&AS...84..179C), Brand et al. (1994, Cat.
J/A+AS/103/541) and the present observations, which now contains
1013 galactic water maser sources. Of these, 937 have an IRAS
counterpart within 1 arcmin from the nominal position of the maser. We
establish a classification scheme based on the IRAS flux densities
which allows to distinguish between water masers associated with star
forming regions and late-type stars. The Arcetri Catalog represents a
useful data base for systematic studies of galactic water maser
sources.
Description:
Table 2 reports the completely updated and revised version of the
Arcetri H2O maser Catalogue. It contains all the 1013 sources
observed at Medicina (423 detected) and lists one entry per
source, usually the one with the highest flux density observed
at Medicina.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 151 1013 Complete updated version of the
Arcetri H2O Maser Catalogue
refs.dat 82 121 References of table2
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See also:
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [IRAS]
5- 14 A10 --- IRAS IRAS name
15 A1 --- m_IRAS [A] Multiplicity index on IRAS
16- 26 A11 --- Name Other name(s)
28- 29 I2 h RAh Right ascension (1950.0)
31- 32 I2 min RAm Right ascension (1950.0)
34- 38 F5.2 s RAs Right ascension (1950.0)
41 A1 --- DE- Declination sign (1950.0)
42- 43 I2 deg DEd Declination (1950.0)
45- 46 I2 arcmin DEm Declination (1950.0)
48- 52 F5.2 arcsec DEs Declination (1950.0)
55- 58 A4 --- Class Color-based classification of the IRAS
source associated with the H2O maser (1)
60- 69 A10 "DD/MM/YYYY" Date Date of observation
71- 75 F5.3 km/s Res Spectral resolution
77- 81 I5 --- Scan Scan number
83- 86 F4.2 Jy Sig r.m.s. noise in spectrum
88- 93 F6.1 km/s Vmin Minimum velocity of emission (2)
95-100 F6.1 km/s Vmax Maximum velocity of emission (2)
102-108 F7.2 km/s Vpeak Velocity of peak signal
111-119 E9.3 Jy Fp Peak flux density (22GHz)
121-129 E9.3 Jy.km/s Stot Integrated flux (22GHz)
131-151 A21 --- r_Name Reference codes, separated by comma, in
refs.dat file (3)
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Note (1): Classification:
SFR: sources arising in star forming regions
STAR: sources around late-type stars
STRN: strange
UNKN: unknown
Note (2): In case of no detection, the minimum and maximum velocities
indicate the total useful velocity extent of the spectrum.
Note (3): The lowest number for each entry is the coded reference to the
publication in which the maser was first reported.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Ref Reference code
5- 23 A19 --- BibCode BibCode
26- 53 A28 --- Aut Author's name
56- 85 A30 --- Com Comments
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Acknowledgements: Francesco Palagi
History: Supersedes J/A+AS/103/541
(End) Patricia Bauer [CDS] 23-Mar-2001