The far distance to G7.47+0.06 from proper motion measurement of H2O masers

Yamauchi Aya; Yamashita Kazuyoshi; Honma Mareki; Sunada Kazuyoshi; Nakagawa Akiharu; Ueno Yuji

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The far distance to G7.47+0.06 from proper motion measurement of H2O masers

机译：正确测量H2O脉搏与G7.47 + 0.06的距离

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Wereportonadistancemeasurementof22GHzH2Omaserfeaturesassociatedwithanultra-compactHa€‰iiregionG7.47+0.06usingVERA(VLBIExplorationofRadioAstrometry).Sincethesourceislocatedfartherawaythan10a€‰kpc,itturnedouttobedifficulttoderivethedistancefromannualparallaxmeasurement.Meanwhile,weclearlydetectedthesource'spropermotionparalleltotheGalacticplane.Thepropermotionis????=??a?’5.03a€‰?±a€‰0.07a€‰masa€‰yra?’1andisapproachingtheGalacticcenter.Weappliedanewmethodtodeterminethesourcedistancebasedonabsolutepropermotions.ConsideringuncertaintiesoftheGalacticrotationcurveandthesolarpeculiarmotion,thedetectedpropermotionleadstoasourcedistanceofD=20a€‰?±a€‰2a€‰kpc,demonstratingthatastrometricobservationcanprovideanaccuratedistancemeasurementata10%levelevenforsourcestoodistanttomeasuretheannualparallax.Lastly,wescalethephysicalparametersoftheHa€‰iiregionestimatedinapreviouspapertobe20a€‰kpc,andshowthattheH2Omaserfeaturesareassociatedwithamassivestar-formingregioncorrespondingtothespectraltypeofO5.5.

机译：我们使用VERA（无线电射电法的VLBI探测）对与超紧凑型哈萨克斯坦地区G7.47 + 0.06关联的22 GHz H2欧姆特性的距离测量进行了测量。由于该源的位置距离每千个千分之一千分之一千分之一千分之一，因此它被认为是整个运动的±3倍，这是通过相同的视差测量得出的。 €‰湿润粉糊€‰YRA？“1andisapproachingtheGalacticcenter.Weappliedanewmethodtodeterminethesourcedistancebasedonabsolutepropermotions.ConsideringuncertaintiesoftheGalacticrotationcurveandthesolarpeculiarmotion，thedetectedpropermotionleadstoasourcedistanceofD = 20A€‰？±一个€‰2A€‰KPC，demonstratingthatastrometricobservationcanprovideanaccuratedistancemeasurementata10％levelevenforsourcestoodistanttomeasuretheannualparallax.Lastly，wescalethephysicalparametersoftheHa€‰iiregionestimatedinapreviouspapertobe20a€‰KPC，andshowthattheH2Omaserfeaturesareassociatedwithamassivestar-formingregioncorrespondingtothespectraltypeofO5.5。

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《PASJ: Publications of the Astronomical Society of Japan》 |2016年第4期|共页
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Yamauchi Aya; Yamashita Kazuyoshi; Honma Mareki; Sunada Kazuyoshi; Nakagawa Akiharu; Ueno Yuji;
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1. The far distance to G7.47+0.06 from proper motion measurement of H2O masers [J] . Yamauchi Aya, Yamashita Kazuyoshi, Honma Mareki, PASJ: Publications of the Astronomical Society of Japan . 2016,第4期

机译：H2O masers的正确运动测量与G7.47 + 0.06的远距离
2. Measurement of the Distance and Proper Motions of the H2O Masers in the Young Planetary Nebula K 3a?’35 [J] . Tafoya Daniel, Imai Hiroshi, G?mez Yolanda, PASJ: Publications of the Astronomical Society of Japan . 2011,第1期

机译：测量年轻行星状星云K 3a中H2O激子的距离和适当运动？’35
3. DISTANCE AND PROPER MOTION MEASUREMENT OF THE RED SUPERGIANT, PZ CAS, IN VERY LONG BASELINE INTERFEROMETRY H2O MASER ASTROMETRY [J] . K. Kusuno, Y. Asaki, H. Imai, The Astrophysical journal . 2013,第2期

机译：在非常长的基线干涉水H2O量测中，红色上清PZ CAS的距离和正确的测量
4. 10 years of 12.2 GHz methanol maser VLBI observations towards NGC 7538 IRS1 N: proper motions and maser saturation [C] . Michele Pestalozzi, Anders Jerkstrand, John Conway International Astronomical Union . 2012

机译：10年12.2 GHz甲醇Maser VLBI对NGC 7538 IRS1 N的观察：适当的动作和破坏饱和度
5. Precision measurements with atomic hydrogen masers. [D] . Humphrey, Marc Andrew. 2003

机译：原子氢激射器的精密测量。
6. Astrometrically registered maps of H2O and SiO masers toward VX Sagittarii [O] . Dong-Hwan Yoon, Se-Hyung Cho, Youngjoo Yun, -1

机译：H2O和SiO的立体记录图朝向VX射手座
7. The far distance to G7.47+0.06 from proper motion measurement of H2O masers [O] . Aya Yamauchi, Kazuyoshi Yamashita, Mareki Honma, 2016

机译：从适当运动测量的H2O Masers的适当运动测量远距离到G7.47 + 0.06
8. Proper Motions of Dwarf Spheroidal Galaxies from Hubble Space Telescope Imaging: III. Measurement for URSA Minor [R] . Piatek, S. , Pryor, C. , Bristow, P. , 2005

机译：哈勃太空望远镜成像中矮球状星系的正确运动：III。 URsa minor的测量

The far distance to G7.47+0.06 from proper motion measurement of H2O masers

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