J/A+A/642/A213 SiO maser emission in evolved stars (Gomez-Garrido+, 2020)
Very fast variations of SiO maser emission in evolved stars.
Gomez-Garrido M., Bujarrabal V., Alcolea J., Soria-Ruiz R., de Vicente P.,
Desmurs J.-F.
<Astron. Astrophys. 642, A213 (2020)>
=2020A&A...642A.213G 2020A&A...642A.213G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Stars, giant ; Masers ; Spectroscopy
Keywords: stars: variables: general - stars: AGB and post-AGB -
stars: individual: RX Bootis - masers - techniques: spectroscopic -
masers
Abstract:
We aim to study the time evolution of the SiO maser lines in Mira-type
and semi-regular variables at short timescales. We observed the SiO
maser lines at 7mm and 3mm using the 40m Yebes antenna and the 30m
IRAM telescope, respectively, with a minimum spacing of 1 day. We
studied the semi-regular variables RX Boo and RT Vir and the Mira-type
variables U Her, R LMi, R Leo, and chi Cyg.
Description:
The observations were performed using the 40m Yebes antenna and the
30m IRAM telescope. Daily spectra are in velocity and flux density
units.
Objects:
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RA (ICRS) DE Designation(s)
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09 45 34.28 +34 30 42.8 R LMi = HD 84346
09 47 33.48 +11 25 43.8 R Leo = HD 84748
13 02 37.98 +05 11 08.4 RT Vir = HD 113285
14 24 11.62 +25 42 13.4 RX Boo = HD 126327
16 25 47.47 +18 53 32.9 U Her = HD 148206
19 50 33.92 +32 54 50.6 chi Cyg = HD 187796
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 103 260 List of spectra
sp/* . 260 Individual spectra
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See also:
J/A+A/329/219 : 28SiO in O-rich evolved stars (Pardo+ 1998)
J/A+A/393/115 : 86GHz SiO maser survey of late-type stars (Messineo+, 2002)
J/A+A/418/103 : 86GHz SiO maser survey in the Inner Galaxy (Messineo+, 2004)
J/A+A/435/575 : 86GHz SiO maser survey of late-type stars. III
(Messineo+, 2005)
J/ApJS/165/360 : SiO maser emission toward 10 late-type stars (Kang+, 2006)
J/A+A/565/A127 : SiO masers v=1,2,3 for 4 AGB (Desmurs+, 2014)
J/ApJS/211/15 : SiO and H2O maser survey toward AGB + post-AGB stars
(Yoon+, 2017)
J/A+A/619/A35 : 86GHz SiO maser survey of late-type stars. IV
(Messineo+, 2018)
Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 44 A44 --- FileName Name of the spectrum file in subdirectory sp
47- 53 A7 --- Name Star name
55- 67 A13 --- Pol Polarisation informations
69- 79 A11 --- Obs.date Observation date
(DD-MMM-YYYY or MMM-YYYY for averaged spectra)
81- 95 A15 --- Trans Transition informations
97-103 A7 --- avg [average ] average for averaged spectrum
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Byte-by-byte Description of file: sp/*
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 17 E16.10 km/s Vel Velocity
19- 29 E11.5 Jy S Flux density
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Acknowledgements:
Miguel Gomez-Garrido, m.gomezgarrido(at)oan.es
(End) Patricia Vannier [CDS] 20-Sep-2020