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J/A+A/582/A68       Database of circumstellar OH masers      (Engels+, 2015)

A database of circumstellar OH masers. Engels D., Bunzel F. <Astron. Astrophys. 582, A68 (2015)> =2015A&A...582A..68E (SIMBAD/NED BibCode)
ADC_Keywords: Masers ; Stars, late-type ; Stars, masers Keywords: masers - stars: AGB and post-AGB - circumstellar matter Abstract: We present a new database of circumstellar OH masers at 1612, 1665, and 1667MHz in the Milky Way galaxy. The database (version 2.4) contains 13655 observations and 2341 different stars detected in at least one transition. Detections at 1612MHz are considered to be complete until the end of 2014 as long as they were published in refereed papers. Detections of the main lines (1665 and 1667MHz) and non-detections in all transitions are included only if published after 1983. The database contains flux densities and velocities of the two strongest maser peaks, the expansion velocity of the shell, and the radial velocity of the star. Links are provided for about 100 stars (<5% of all stars with OH masers) to interferometric observations and monitoring programs of the maser emission published since their beginnings in the 1970s. Access to the database is possible over the Web (www.hs.uni-hamburg.de/maserdb), allowing cone searches for individual sources and lists of sources. A general search is possible in selected regions of the sky and by defining ranges of flux densities and/or velocities. Alternative ways to access the data are via the German Virtual Observatory and the CDS. Description: We present a new database of circumstellar OH masers at 1612, 1665, and 1667MHz in the Milky Way galaxy in tabular form. The database (version 2.4) contains 13655 observations and 2341 different stars detected in at least one transition and includes published data until end of 2014. Interferometric follow-up observations and monitor programs are stored in two auxiliary tables. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file oh_maser.dat 195 13655 OH maser observations maps.dat 162 271 Interferometric OH maser observations (ohmasermaps) monitor.dat 151 180 OH maser monitoring programs (ohmasermonitor)
See also: J/A+AS/124/509 : ATCA/VLA OH 1612 MHz survey. II. (Sevenster+ 1997) J/A+A/366/481 : ATCA/VLA OH 1612 MHz survey. III. (Sevenster+, 2001) J/A+AS/90/327 : 1612MHz OH survey of IRAS sources (te Lintel Hekkert+ 1993) J/A+A/277/453 : OH maser survey of cool IRAS sources (David+ 1993) J/A+A/297/494 : OH maser from semiregular variables (Szymczak+, 1995) J/A+AS/111/237 : OH detections from circumstellar shells (Lewis+, 1995) J/A+AS/119/459 : Search for OH maser emission (te Lintel Hekkert+ 1996) J/A+AS/122/79 : Galactic Bulge Region OH 1612MHz survey. I. (Sevenster+ 1997) J/A+AS/124/85 : OH emission from IRAS sources (Slysh+ 1997) J/A+AS/137/43 : OH/H2O masers database (Forster+, 1999) J/A+A/325/255 : 5cm OH masers survey (Baudry+ 1997) J/A+A/327/755 : OH maser emission from IRAS sources (Palla+ 1997) J/A+A/394/975 : OH 5-cm line survey in late-type stars (Desmurs+, 2002) J/A+A/414/235 : OH maser emission from star forming regions (Szymczak+, 2004) J/ApJS/155/595 : OH maser IRAS and MSX observations (Deacon+, 2004) J/ApJS/160/220 : Full-polarization observations of OH masers (Fish+, 2005) J/A+A/434/201 : The 35um absorption line towards 1612MHz masers (He+, 2005) J/A+A/465/865 : OH masers towards high mass protostellar object (Edris+, 2007) www.hs.uni-hamburg.de/maserdb : Database of Cursumstellar Masers Home Page Byte-by-byte Description of file: oh_maser.dat
Bytes Format Units Label Explanations
1 I1 --- Obs [1/3]? Prioritized observations (1) 3- 7 I5 --- IDobs Observation identification number (1) 9- 11 I3 --- Pap Reference identification number (1) 13- 17 I5 --- ID Object identification number (1) 19- 34 A16 --- Name Object name 36- 39 I4 MHz Freq Frequency 41 A1 --- SpType [DSI] Spectral type of maser profile (2) 43- 44 I2 h RAh Right ascension (J2000.0) 46- 47 I2 min RAm Right ascension (J2000.0) 49- 54 F6.3 s RAs Right ascension (J2000.0) 56 A1 --- DE- Declination sign (J2000.0) 57- 58 I2 deg DEd Declination (J2000.0) 60- 61 I2 arcmin DEm Declination (J2000.0) 63- 67 F5.2 arcsec DEs Declination (J2000.0) 70- 75 F6.1 km/s vel-blue ? Velocity of blue-shifted maser peak 78- 83 F6.1 km/s vel-red ? Velocity of red-shifted maser peak 85- 88 F4.2 km/s e_vel ? Velocity resolution 91- 96 F6.1 km/s vel-cent ? Radial velocity 100-104 F5.1 km/s vel-shell ? Expansion velocity of the maser shell 106 A1 --- Flag [>≤:.&] Flag for detected maser emission (3) 108-115 F8.3 Jy Sblue ? Flux density of blue-shifted maser peak (4) 117-123 F7.3 Jy Sred ? Flux density of red-shifted maser peak 125-132 F8.3 Jy Iblue ? Integral flux of blue-shifted maser peak (4) 134-140 F7.3 Jy Ired ? Integral flux of red-shifted maser peak (4) 142-147 A6 --- Ref Acronym of the reference (1) 149-159 F11.7 deg RAdeg Right ascension (J2000.0) 161-171 F11.7 deg DEdeg Declination (J2000.0) 173 I1 --- Monitor [0/1] Presence in monitor.dat file (5) 175 I1 --- Maps [0/1] Presence in maps.dat file (6) 177-195 A19 --- BibCode Bibliographic Code
Note (1): Numbers/designations used for administration of the database Note (2): Spectral type of maser profile as follows: D = Double peaked maser profile S = Single peaked maser profile I = Irregular maser profile Note (3): Marker for detected maser emission ad follows: < = non-detections > = lower flux density limit = = no velocities available . = blue flux density peak questionable : = red flux density peak questionable & = both flux density peaks questionable Note (4): 3-sigma upper limit in case of non-detections Note (5): 1 if monitor.dat contains entry for this source and frequency. Note (6): 1 if maps.dat contains entry for this source and frequency.
Byte-by-byte Description of file: maps.dat
Bytes Format Units Label Explanations
1- 5 I5 --- IDmeas Observation identification number (1) 7- 9 I3 --- Pap Reference identification number (1) 11- 15 I5 --- ID Object identification number (1) 17- 31 A15 --- Name Object name 33- 34 I2 h RAh Right ascension (J2000.0) 36- 37 I2 min RAm Right ascension (J2000.0) 39- 44 F6.3 s RAs Right ascension (J2000.0) 46 A1 --- DE- Declination sign (J2000.0) 47- 48 I2 deg DEd Declination (J2000.0) 50- 51 I2 arcmin DEm Declination (J2000.0) 53- 57 F5.2 arcsec DEs Declination (J2000.0) 59- 62 I4 MHz Freq Frequency 64- 69 A6 --- Inst Name of radio interferometer 71- 76 F6.1 mas Res ? Spatial resolution 78 A1 --- Flag [<] Limit flag for detected maser emission (2) 79- 83 F5.3 mJy rms ? Sensitivity of the observation 85 A1 --- Pol [1/0] Marker for polarization observations (3) 87- 89 I3 --- Nmaps Number of interferometric maps 91-100 A10 "date" ObsdateS Observing date of the first map (4) 102-111 A10 "date" ObsdateE Observing date of the last map (4) 113-118 A6 --- Ref Acronym of the reference (1) 120-130 F11.7 deg RAdeg Right ascension (J2000.0) 132-142 F11.7 deg DEdeg Declination (J2000.0) 144-162 A19 --- BibCode Bibliographic Code
Note (1): Numbers/designations used for administration of the database Note (2): '<' for non-detections Note (3): Marker for polarization observations as follows: 1 = polarization measured 0 = polarization not measured Note (4): Format: YYYY-MM-DD, missing information is replaced by blank.
Byte-by-byte Description of file: monitor.dat
Bytes Format Units Label Explanations
1- 5 I5 --- IDmeas Observation identification number(1) 7- 9 I3 --- Pap Reference identification number (1) 11- 15 I5 --- ID Object identification number (1) 17- 28 A12 --- Name Object name 30- 31 I2 h RAh Right ascension (J2000.0) 33- 34 I2 min RAm Right ascension (J2000.0) 36- 41 F6.3 s RAs Right ascension (J2000.0) 43 A1 --- DE- Declination sign (J2000.0) 44- 45 I2 deg DEd Declination (J2000.0) 47- 48 I2 arcmin DEm Declination (J2000.0) 50- 54 F5.2 arcsec DEs Declination (J2000.0) 56- 59 I4 MHz Freq Frequency 61- 70 A10 "date" ObsdateS Start of the monitoring program (2) 72- 81 A10 "date" ObsdateE End of the monitoring program (2) 83 A1 --- l_Smaxpk [<] Marker for detected maser emission (3) 84- 90 F7.3 Jy Smaxpk ? Maximum flux density detected 92 A1 --- l_Sminpk Marker for detected maser emission (3) 93-100 A8 Jy Sminpk Minimum flux density detected 102-107 A6 --- Ref Acronym of the reference (1) 109-119 F11.7 deg RAdeg Right ascension (J2000.0) 121-131 F11.7 deg DEdeg Declination (J2000.0) 133-151 A19 --- BibCode Bibliographic Code
Note (1): Numbers/designations used for administration of the database Note (2): Format: YYYY-MM-DD, missing information is replaced by '00' Note (3): '<' for non-detections
Acknowledgements: Dieter Engels, dengels(at)hs.uni-hamburg.de
(End) Patricia Vannier [CDS] 25-Aug-2015
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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