SiO maser survey off the Galactic Plane : J/PASJ/62/525

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Authors : Deguchi S. orcid , Shimoikura T., Koike K. (hide) , Shimoikura T., Koike K. et..al

VizieR DOI :
Bibcode : 2010PASJ...62..525D (ADS) (Simbad) (Objects)
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CDS Keywords : Galactic plane; Stars, giant; Masers; Radial velocities
UAT : Galaxy planes, Milky Way Galaxy, Giant stars, Astrophysical masers, Radio astronomy, Radial velocity

Observation (OC)

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Inserted into VizieR : 24-Jul-2010
Last modification : 04-Jul-2017

SiO maser survey off the Galactic Plane A signature of streaming motion. (2010)

Keywords : Galaxy disk - Galaxy: kinematics and dynamics - stars: AGB and post-AGB

Abstract:A group of Mira variables in the solar neighborhood shows unusual spatial motion in the Galaxy. To study this motion on a much larger scale in the Galaxy, we newly surveyed 134 evolved stars off the Galactic plane by SiO maser lines, obtaining accurate radial velocities of 84 detected stars. Together with the past data of SiO maser sources, we analyzed the radial-velocity data of a large sample of sources distributed in a distance range of about 0.3-6kpc in the first Galactic quadrant. At Galactic longitudes between 20{deg} and 40{deg}, we found a group of stars with large negative radial velocities, which deviate by more than 100km/s from the Galactic rotation. We show that these deviant motions of maser stars are ...(more)
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policies
The observations were made with the 45-m radio telescope at Nobeyama in 2009 April and May by the SiO J=1-0 v=1 and 2 transitions at 43.122 and 42.821GHz, respectively.

  • II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
  • II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
  • J/ApJS/106/463 : SiO maser sources (Jiang+ 1996)
  • J/A+AS/127/185 : SiO masers in OH/IR stars, proto-PN and PN (Nyman+ 1998)
  • J/A+AS/132/211 : Interstellar SiO sources (Harju+ 1998)
  • J/A+A/391/967 : H2O and SiO masers in the Galactic center (Sjouwerman+, 2002)
  • 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 (Messineo+, 2005)
  • J/ApJ/669/446 : Observations of SiO masers (Nakashima+, 2007)
  • J/PASJ/53/293 : IRAS/SiO sources toward Galactic Bulge (Deguchi+, 2001)
  • J/PASJ/54/719 : IRAS/SiO sources in the Galactic bulge (Deguchi+, 2002)
  • J/PASJ/55/203 : SiO maser survey toward inner Galactic disk (Nakashima+, 2003)
  • J/PASJ/55/229 : SiO maser survey of cold IRAS sources (Nakashima+, 2003)
  • J/PASJ/56/261 : SiO maser survey in Galactic center (Deguchi+, 2004)
  • J/PASJ/56/765 : SiO maser survey of IRAS sources (Degychi+, 2004)
  • J/PASJ/58/529 : SiO Maser Survey in Galactic Bulge (Fujii+, 2006)
  • J/PASJ/59/559 : SiO maser search off the Galactic plane (Deguchi+, 2007)
  • J/PASJ/62/391 : SiO and H2O maser in Galactic disk clusters (Deguchi+, 2010)

                


                

                    

                


                

                    

                


                

                    
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